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Copyright (c) 2006 Christian Walter <wolti@sil.at>
Copyright (c) 2013-2019 Armink <armink.ztl@gmail.com>
All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions
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3. The name of the author may not be used to endorse or promote products
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THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

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GNU GENERAL PUBLIC LICENSE
Version 2, June 1991
Copyright (C) 1989, 1991 Free Software Foundation, Inc.
51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
Everyone is permitted to copy and distribute verbatim copies
of this license document, but changing it is not allowed.
Preamble
The licenses for most software are designed to take away your
freedom to share and change it. By contrast, the GNU General Public
License is intended to guarantee your freedom to share and change free
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Ty Coon, President of Vice
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GNU LESSER GENERAL PUBLIC LICENSE
Version 2.1, February 1999
Copyright (C) 1991, 1999 Free Software Foundation, Inc.
51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
Everyone is permitted to copy and distribute verbatim copies
of this license document, but changing it is not allowed.
[This is the first released version of the Lesser GPL. It also counts
as the successor of the GNU Library Public License, version 2, hence
the version number 2.1.]
Preamble
The licenses for most software are designed to take away your
freedom to share and change it. By contrast, the GNU General Public
Licenses are intended to guarantee your freedom to share and change
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specially designated software packages--typically libraries--of the
Free Software Foundation and other authors who decide to use it. You
can use it too, but we suggest you first think carefully about whether
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When we speak of free software, we are referring to freedom of use,
not price. Our General Public Licenses are designed to make sure that
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To protect your rights, we need to make restrictions that forbid
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486
HardWare/FreeModbus/modbus/ascii/mbascii.c Normal file
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@ -0,0 +1,486 @@
/*
* FreeModbus Libary: A portable Modbus implementation for Modbus ASCII/RTU.
* Copyright (c) 2006-2018 Christian Walter <cwalter@embedded-solutions.at>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* File: $Id: mbascii.c,v 1.15 2007/02/18 23:46:48 wolti Exp $
*/
/* ----------------------- System includes ----------------------------------*/
#include "stdlib.h"
#include "string.h"
/* ----------------------- Platform includes --------------------------------*/
#include "port.h"
/* ----------------------- Modbus includes ----------------------------------*/
#include "mb.h"
#include "mbconfig.h"
#include "mbascii.h"
#include "mbframe.h"
#include "mbcrc.h"
#include "mbport.h"
#if MB_SLAVE_ASCII_ENABLED > 0
/* ----------------------- Defines ------------------------------------------*/
#define MB_ASCII_DEFAULT_CR '\r' /*!< Default CR character for Modbus ASCII. */
#define MB_ASCII_DEFAULT_LF '\n' /*!< Default LF character for Modbus ASCII. */
#define MB_SER_PDU_SIZE_MIN 3 /*!< Minimum size of a Modbus ASCII frame. */
#define MB_SER_PDU_SIZE_MAX 256 /*!< Maximum size of a Modbus ASCII frame. */
#define MB_SER_PDU_SIZE_LRC 1 /*!< Size of LRC field in PDU. */
#define MB_SER_PDU_ADDR_OFF 0 /*!< Offset of slave address in Ser-PDU. */
#define MB_SER_PDU_PDU_OFF 1 /*!< Offset of Modbus-PDU in Ser-PDU. */
/* ----------------------- Type definitions ---------------------------------*/
typedef enum
{
STATE_RX_IDLE, /*!< Receiver is in idle state. */
STATE_RX_RCV, /*!< Frame is beeing received. */
STATE_RX_WAIT_EOF /*!< Wait for End of Frame. */
} eMBRcvState;
typedef enum
{
STATE_TX_IDLE, /*!< Transmitter is in idle state. */
STATE_TX_START, /*!< Starting transmission (':' sent). */
STATE_TX_DATA, /*!< Sending of data (Address, Data, LRC). */
STATE_TX_END, /*!< End of transmission. */
STATE_TX_NOTIFY /*!< Notify sender that the frame has been sent. */
} eMBSndState;
typedef enum
{
BYTE_HIGH_NIBBLE, /*!< Character for high nibble of byte. */
BYTE_LOW_NIBBLE /*!< Character for low nibble of byte. */
} eMBBytePos;
/* ----------------------- Static functions ---------------------------------*/
static UCHAR prvucMBCHAR2BIN( UCHAR ucCharacter );
static UCHAR prvucMBBIN2CHAR( UCHAR ucByte );
static UCHAR prvucMBLRC( UCHAR * pucFrame, USHORT usLen );
/* ----------------------- Static variables ---------------------------------*/
static volatile eMBSndState eSndState;
static volatile eMBRcvState eRcvState;
/* We reuse the Modbus RTU buffer because only one buffer is needed and the
* RTU buffer is bigger. */
extern volatile UCHAR ucRTUBuf[];
static volatile UCHAR *ucASCIIBuf = ucRTUBuf;
static volatile USHORT usRcvBufferPos;
static volatile eMBBytePos eBytePos;
static volatile UCHAR *pucSndBufferCur;
static volatile USHORT usSndBufferCount;
static volatile UCHAR ucLRC;
static volatile UCHAR ucMBLFCharacter;
/* ----------------------- Start implementation -----------------------------*/
eMBErrorCode
eMBASCIIInit( UCHAR ucSlaveAddress, UCHAR ucPort, ULONG ulBaudRate, eMBParity eParity )
{
eMBErrorCode eStatus = MB_ENOERR;
( void )ucSlaveAddress;
ENTER_CRITICAL_SECTION( );
ucMBLFCharacter = MB_ASCII_DEFAULT_LF;
if( xMBPortSerialInit( ucPort, ulBaudRate, 7, eParity ) != TRUE )
{
eStatus = MB_EPORTERR;
}
else if( xMBPortTimersInit( MB_ASCII_TIMEOUT_SEC * 20000UL ) != TRUE )
{
eStatus = MB_EPORTERR;
}
EXIT_CRITICAL_SECTION( );
return eStatus;
}
void
eMBASCIIStart( void )
{
ENTER_CRITICAL_SECTION( );
vMBPortSerialEnable( TRUE, FALSE );
eRcvState = STATE_RX_IDLE;
EXIT_CRITICAL_SECTION( );
/* No special startup required for ASCII. */
( void )xMBPortEventPost( EV_READY );
}
void
eMBASCIIStop( void )
{
ENTER_CRITICAL_SECTION( );
vMBPortSerialEnable( FALSE, FALSE );
vMBPortTimersDisable( );
EXIT_CRITICAL_SECTION( );
}
eMBErrorCode
eMBASCIIReceive( UCHAR * pucRcvAddress, UCHAR ** pucFrame, USHORT * pusLength )
{
eMBErrorCode eStatus = MB_ENOERR;
ENTER_CRITICAL_SECTION( );
assert( usRcvBufferPos < MB_SER_PDU_SIZE_MAX );
/* Length and CRC check */
if( ( usRcvBufferPos >= MB_SER_PDU_SIZE_MIN )
&& ( prvucMBLRC( ( UCHAR * ) ucASCIIBuf, usRcvBufferPos ) == 0 ) )
{
/* Save the address field. All frames are passed to the upper layed
* and the decision if a frame is used is done there.
*/
*pucRcvAddress = ucASCIIBuf[MB_SER_PDU_ADDR_OFF];
/* Total length of Modbus-PDU is Modbus-Serial-Line-PDU minus
* size of address field and CRC checksum.
*/
*pusLength = ( USHORT )( usRcvBufferPos - MB_SER_PDU_PDU_OFF - MB_SER_PDU_SIZE_LRC );
/* Return the start of the Modbus PDU to the caller. */
*pucFrame = ( UCHAR * ) & ucASCIIBuf[MB_SER_PDU_PDU_OFF];
}
else
{
eStatus = MB_EIO;
}
EXIT_CRITICAL_SECTION( );
return eStatus;
}
eMBErrorCode
eMBASCIISend( UCHAR ucSlaveAddress, const UCHAR * pucFrame, USHORT usLength )
{
eMBErrorCode eStatus = MB_ENOERR;
UCHAR usLRC;
ENTER_CRITICAL_SECTION( );
/* Check if the receiver is still in idle state. If not we where too
* slow with processing the received frame and the master sent another
* frame on the network. We have to abort sending the frame.
*/
if( eRcvState == STATE_RX_IDLE )
{
/* First byte before the Modbus-PDU is the slave address. */
pucSndBufferCur = ( UCHAR * ) pucFrame - 1;
usSndBufferCount = 1;
/* Now copy the Modbus-PDU into the Modbus-Serial-Line-PDU. */
pucSndBufferCur[MB_SER_PDU_ADDR_OFF] = ucSlaveAddress;
usSndBufferCount += usLength;
/* Calculate LRC checksum for Modbus-Serial-Line-PDU. */
usLRC = prvucMBLRC( ( UCHAR * ) pucSndBufferCur, usSndBufferCount );
ucASCIIBuf[usSndBufferCount++] = usLRC;
/* Activate the transmitter. */
eSndState = STATE_TX_START;
vMBPortSerialEnable( FALSE, TRUE );
}
else
{
eStatus = MB_EIO;
}
EXIT_CRITICAL_SECTION( );
return eStatus;
}
BOOL
xMBASCIIReceiveFSM( void )
{
BOOL xNeedPoll = FALSE;
UCHAR ucByte;
UCHAR ucResult;
assert( eSndState == STATE_TX_IDLE );
( void )xMBPortSerialGetByte( ( CHAR * ) & ucByte );
switch ( eRcvState )
{
/* A new character is received. If the character is a ':' the input
* buffer is cleared. A CR-character signals the end of the data
* block. Other characters are part of the data block and their
* ASCII value is converted back to a binary representation.
*/
case STATE_RX_RCV:
/* Enable timer for character timeout. */
vMBPortTimersEnable( );
if( ucByte == ':' )
{
/* Empty receive buffer. */
eBytePos = BYTE_HIGH_NIBBLE;
usRcvBufferPos = 0;
}
else if( ucByte == MB_ASCII_DEFAULT_CR )
{
eRcvState = STATE_RX_WAIT_EOF;
}
else
{
ucResult = prvucMBCHAR2BIN( ucByte );
switch ( eBytePos )
{
/* High nibble of the byte comes first. We check for
* a buffer overflow here. */
case BYTE_HIGH_NIBBLE:
if( usRcvBufferPos < MB_SER_PDU_SIZE_MAX )
{
ucASCIIBuf[usRcvBufferPos] = ( UCHAR )( ucResult << 4 );
eBytePos = BYTE_LOW_NIBBLE;
break;
}
else
{
/* not handled in Modbus specification but seems
* a resonable implementation. */
eRcvState = STATE_RX_IDLE;
/* Disable previously activated timer because of error state. */
vMBPortTimersDisable( );
}
break;
case BYTE_LOW_NIBBLE:
ucASCIIBuf[usRcvBufferPos] |= ucResult;
usRcvBufferPos++;
eBytePos = BYTE_HIGH_NIBBLE;
break;
}
}
break;
case STATE_RX_WAIT_EOF:
if( ucByte == ucMBLFCharacter )
{
/* Disable character timeout timer because all characters are
* received. */
vMBPortTimersDisable( );
/* Receiver is again in idle state. */
eRcvState = STATE_RX_IDLE;
/* Notify the caller of eMBASCIIReceive that a new frame
* was received. */
xNeedPoll = xMBPortEventPost( EV_FRAME_RECEIVED );
}
else if( ucByte == ':' )
{
/* Empty receive buffer and back to receive state. */
eBytePos = BYTE_HIGH_NIBBLE;
usRcvBufferPos = 0;
eRcvState = STATE_RX_RCV;
/* Enable timer for character timeout. */
vMBPortTimersEnable( );
}
else
{
/* Frame is not okay. Delete entire frame. */
eRcvState = STATE_RX_IDLE;
}
break;
case STATE_RX_IDLE:
if( ucByte == ':' )
{
/* Enable timer for character timeout. */
vMBPortTimersEnable( );
/* Reset the input buffers to store the frame. */
usRcvBufferPos = 0;;
eBytePos = BYTE_HIGH_NIBBLE;
eRcvState = STATE_RX_RCV;
}
break;
}
return xNeedPoll;
}
BOOL
xMBASCIITransmitFSM( void )
{
BOOL xNeedPoll = FALSE;
UCHAR ucByte;
assert( eRcvState == STATE_RX_IDLE );
switch ( eSndState )
{
/* Start of transmission. The start of a frame is defined by sending
* the character ':'. */
case STATE_TX_START:
ucByte = ':';
xMBPortSerialPutByte( ( CHAR )ucByte );
eSndState = STATE_TX_DATA;
eBytePos = BYTE_HIGH_NIBBLE;
break;
/* Send the data block. Each data byte is encoded as a character hex
* stream with the high nibble sent first and the low nibble sent
* last. If all data bytes are exhausted we send a '\r' character
* to end the transmission. */
case STATE_TX_DATA:
if( usSndBufferCount > 0 )
{
switch ( eBytePos )
{
case BYTE_HIGH_NIBBLE:
ucByte = prvucMBBIN2CHAR( ( UCHAR )( *pucSndBufferCur >> 4 ) );
xMBPortSerialPutByte( ( CHAR ) ucByte );
eBytePos = BYTE_LOW_NIBBLE;
break;
case BYTE_LOW_NIBBLE:
ucByte = prvucMBBIN2CHAR( ( UCHAR )( *pucSndBufferCur & 0x0F ) );
xMBPortSerialPutByte( ( CHAR )ucByte );
pucSndBufferCur++;
eBytePos = BYTE_HIGH_NIBBLE;
usSndBufferCount--;
break;
}
}
else
{
xMBPortSerialPutByte( MB_ASCII_DEFAULT_CR );
eSndState = STATE_TX_END;
}
break;
/* Finish the frame by sending a LF character. */
case STATE_TX_END:
xMBPortSerialPutByte( ( CHAR )ucMBLFCharacter );
/* We need another state to make sure that the CR character has
* been sent. */
eSndState = STATE_TX_NOTIFY;
break;
/* Notify the task which called eMBASCIISend that the frame has
* been sent. */
case STATE_TX_NOTIFY:
eSndState = STATE_TX_IDLE;
xNeedPoll = xMBPortEventPost( EV_FRAME_SENT );
/* Disable transmitter. This prevents another transmit buffer
* empty interrupt. */
vMBPortSerialEnable( TRUE, FALSE );
eSndState = STATE_TX_IDLE;
break;
/* We should not get a transmitter event if the transmitter is in
* idle state. */
case STATE_TX_IDLE:
/* enable receiver/disable transmitter. */
vMBPortSerialEnable( TRUE, FALSE );
break;
}
return xNeedPoll;
}
BOOL
xMBASCIITimerT1SExpired( void )
{
switch ( eRcvState )
{
/* If we have a timeout we go back to the idle state and wait for
* the next frame.
*/
case STATE_RX_RCV:
case STATE_RX_WAIT_EOF:
eRcvState = STATE_RX_IDLE;
break;
default:
assert( ( eRcvState == STATE_RX_RCV ) || ( eRcvState == STATE_RX_WAIT_EOF ) );
break;
}
vMBPortTimersDisable( );
/* no context switch required. */
return FALSE;
}
static UCHAR
prvucMBCHAR2BIN( UCHAR ucCharacter )
{
if( ( ucCharacter >= '0' ) && ( ucCharacter <= '9' ) )
{
return ( UCHAR )( ucCharacter - '0' );
}
else if( ( ucCharacter >= 'A' ) && ( ucCharacter <= 'F' ) )
{
return ( UCHAR )( ucCharacter - 'A' + 0x0A );
}
else
{
return 0xFF;
}
}
static UCHAR
prvucMBBIN2CHAR( UCHAR ucByte )
{
if( ucByte <= 0x09 )
{
return ( UCHAR )( '0' + ucByte );
}
else if( ( ucByte >= 0x0A ) && ( ucByte <= 0x0F ) )
{
return ( UCHAR )( ucByte - 0x0A + 'A' );
}
else
{
/* Programming error. */
assert( 0 );
}
return '0';
}
static UCHAR
prvucMBLRC( UCHAR * pucFrame, USHORT usLen )
{
UCHAR ucLRC = 0; /* LRC char initialized */
while( usLen-- )
{
ucLRC += *pucFrame++; /* Add buffer byte without carry */
}
/* Return twos complement */
ucLRC = ( UCHAR ) ( -( ( CHAR ) ucLRC ) );
return ucLRC;
}
#endif

56
HardWare/FreeModbus/modbus/ascii/mbascii.h Normal file
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@ -0,0 +1,56 @@
/*
* FreeModbus Libary: A portable Modbus implementation for Modbus ASCII/RTU.
* Copyright (c) 2006-2018 Christian Walter <cwalter@embedded-solutions.at>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* File: $Id: mbascii.h,v 1.8 2006/12/07 22:10:34 wolti Exp $
*/
#ifndef _MB_ASCII_H
#define _MB_ASCII_H
#ifdef __cplusplus
PR_BEGIN_EXTERN_C
#endif
#if MB_SLAVE_ASCII_ENABLED > 0
eMBErrorCode eMBASCIIInit( UCHAR slaveAddress, UCHAR ucPort,
ULONG ulBaudRate, eMBParity eParity );
void eMBASCIIStart( void );
void eMBASCIIStop( void );
eMBErrorCode eMBASCIIReceive( UCHAR * pucRcvAddress, UCHAR ** pucFrame,
USHORT * pusLength );
eMBErrorCode eMBASCIISend( UCHAR slaveAddress, const UCHAR * pucFrame,
USHORT usLength );
BOOL xMBASCIIReceiveFSM( void );
BOOL xMBASCIITransmitFSM( void );
BOOL xMBASCIITimerT1SExpired( void );
#endif
#ifdef __cplusplus
PR_END_EXTERN_C
#endif
#endif

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/*
* FreeModbus Libary: A portable Modbus implementation for Modbus ASCII/RTU.
* Copyright (c) 2006-2018 Christian Walter <cwalter@embedded-solutions.at>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* File: $Id: mbfunccoils.c,v 1.8 2007/02/18 23:47:16 wolti Exp $
*/
/* ----------------------- System includes ----------------------------------*/
#include "stdlib.h"
#include "string.h"
/* ----------------------- Platform includes --------------------------------*/
#include "port.h"
/* ----------------------- Modbus includes ----------------------------------*/
#include "mb.h"
#include "mbframe.h"
#include "mbproto.h"
#include "mbconfig.h"
/* ----------------------- Defines ------------------------------------------*/
#define MB_PDU_FUNC_READ_ADDR_OFF ( MB_PDU_DATA_OFF )
#define MB_PDU_FUNC_READ_COILCNT_OFF ( MB_PDU_DATA_OFF + 2 )
#define MB_PDU_FUNC_READ_SIZE ( 4 )
#define MB_PDU_FUNC_READ_COILCNT_MAX ( 0x07D0 )
#define MB_PDU_FUNC_WRITE_ADDR_OFF ( MB_PDU_DATA_OFF )
#define MB_PDU_FUNC_WRITE_VALUE_OFF ( MB_PDU_DATA_OFF + 2 )
#define MB_PDU_FUNC_WRITE_SIZE ( 4 )
#define MB_PDU_FUNC_WRITE_MUL_ADDR_OFF ( MB_PDU_DATA_OFF )
#define MB_PDU_FUNC_WRITE_MUL_COILCNT_OFF ( MB_PDU_DATA_OFF + 2 )
#define MB_PDU_FUNC_WRITE_MUL_BYTECNT_OFF ( MB_PDU_DATA_OFF + 4 )
#define MB_PDU_FUNC_WRITE_MUL_VALUES_OFF ( MB_PDU_DATA_OFF + 5 )
#define MB_PDU_FUNC_WRITE_MUL_SIZE_MIN ( 5 )
#define MB_PDU_FUNC_WRITE_MUL_COILCNT_MAX ( 0x07B0 )
/* ----------------------- Static functions ---------------------------------*/
eMBException prveMBError2Exception( eMBErrorCode eErrorCode );
/* ----------------------- Start implementation -----------------------------*/
#if MB_FUNC_READ_COILS_ENABLED > 0
eMBException
eMBFuncReadCoils( UCHAR * pucFrame, USHORT * usLen )
{
USHORT usRegAddress;
USHORT usCoilCount;
UCHAR ucNBytes;
UCHAR *pucFrameCur;
eMBException eStatus = MB_EX_NONE;
eMBErrorCode eRegStatus;
if( *usLen == ( MB_PDU_FUNC_READ_SIZE + MB_PDU_SIZE_MIN ) )
{
usRegAddress = ( USHORT )( pucFrame[MB_PDU_FUNC_READ_ADDR_OFF] << 8 );
usRegAddress |= ( USHORT )( pucFrame[MB_PDU_FUNC_READ_ADDR_OFF + 1] );
usRegAddress++;
usCoilCount = ( USHORT )( pucFrame[MB_PDU_FUNC_READ_COILCNT_OFF] << 8 );
usCoilCount |= ( USHORT )( pucFrame[MB_PDU_FUNC_READ_COILCNT_OFF + 1] );
/* Check if the number of registers to read is valid. If not
* return Modbus illegal data value exception.
*/
if( ( usCoilCount >= 1 ) &&
( usCoilCount < MB_PDU_FUNC_READ_COILCNT_MAX ) )
{
/* Set the current PDU data pointer to the beginning. */
pucFrameCur = &pucFrame[MB_PDU_FUNC_OFF];
*usLen = MB_PDU_FUNC_OFF;
/* First byte contains the function code. */
*pucFrameCur++ = MB_FUNC_READ_COILS;
*usLen += 1;
/* Test if the quantity of coils is a multiple of 8. If not last
* byte is only partially field with unused coils set to zero. */
if( ( usCoilCount & 0x0007 ) != 0 )
{
ucNBytes = ( UCHAR )( usCoilCount / 8 + 1 );
}
else
{
ucNBytes = ( UCHAR )( usCoilCount / 8 );
}
*pucFrameCur++ = ucNBytes;
*usLen += 1;
eRegStatus =
eMBRegCoilsCB( pucFrameCur, usRegAddress, usCoilCount,
MB_REG_READ );
/* If an error occured convert it into a Modbus exception. */
if( eRegStatus != MB_ENOERR )
{
eStatus = prveMBError2Exception( eRegStatus );
}
else
{
/* The response contains the function code, the starting address
* and the quantity of registers. We reuse the old values in the
* buffer because they are still valid. */
*usLen += ucNBytes;;
}
}
else
{
eStatus = MB_EX_ILLEGAL_DATA_VALUE;
}
}
else
{
/* Can't be a valid read coil register request because the length
* is incorrect. */
eStatus = MB_EX_ILLEGAL_DATA_VALUE;
}
return eStatus;
}
#endif
#if MB_FUNC_WRITE_COIL_ENABLED > 0
eMBException
eMBFuncWriteCoil( UCHAR * pucFrame, USHORT * usLen )
{
USHORT usRegAddress;
UCHAR ucBuf[2];
eMBException eStatus = MB_EX_NONE;
eMBErrorCode eRegStatus;
if( *usLen == ( MB_PDU_FUNC_WRITE_SIZE + MB_PDU_SIZE_MIN ) )
{
usRegAddress = ( USHORT )( pucFrame[MB_PDU_FUNC_WRITE_ADDR_OFF] << 8 );
usRegAddress |= ( USHORT )( pucFrame[MB_PDU_FUNC_WRITE_ADDR_OFF + 1] );
usRegAddress++;
if( ( pucFrame[MB_PDU_FUNC_WRITE_VALUE_OFF + 1] == 0x00 ) &&
( ( pucFrame[MB_PDU_FUNC_WRITE_VALUE_OFF] == 0xFF ) ||
( pucFrame[MB_PDU_FUNC_WRITE_VALUE_OFF] == 0x00 ) ) )
{
ucBuf[1] = 0;
if( pucFrame[MB_PDU_FUNC_WRITE_VALUE_OFF] == 0xFF )
{
ucBuf[0] = 1;
}
else
{
ucBuf[0] = 0;
}
eRegStatus =
eMBRegCoilsCB( &ucBuf[0], usRegAddress, 1, MB_REG_WRITE );
/* If an error occured convert it into a Modbus exception. */
if( eRegStatus != MB_ENOERR )
{
eStatus = prveMBError2Exception( eRegStatus );
}
}
else
{
eStatus = MB_EX_ILLEGAL_DATA_VALUE;
}
}
else
{
/* Can't be a valid write coil register request because the length
* is incorrect. */
eStatus = MB_EX_ILLEGAL_DATA_VALUE;
}
return eStatus;
}
#endif
#if MB_FUNC_WRITE_MULTIPLE_COILS_ENABLED > 0
eMBException
eMBFuncWriteMultipleCoils( UCHAR * pucFrame, USHORT * usLen )
{
USHORT usRegAddress;
USHORT usCoilCnt;
UCHAR ucByteCount;
UCHAR ucByteCountVerify;
eMBException eStatus = MB_EX_NONE;
eMBErrorCode eRegStatus;
if( *usLen > ( MB_PDU_FUNC_WRITE_SIZE + MB_PDU_SIZE_MIN ) )
{
usRegAddress = ( USHORT )( pucFrame[MB_PDU_FUNC_WRITE_MUL_ADDR_OFF] << 8 );
usRegAddress |= ( USHORT )( pucFrame[MB_PDU_FUNC_WRITE_MUL_ADDR_OFF + 1] );
usRegAddress++;
usCoilCnt = ( USHORT )( pucFrame[MB_PDU_FUNC_WRITE_MUL_COILCNT_OFF] << 8 );
usCoilCnt |= ( USHORT )( pucFrame[MB_PDU_FUNC_WRITE_MUL_COILCNT_OFF + 1] );
ucByteCount = pucFrame[MB_PDU_FUNC_WRITE_MUL_BYTECNT_OFF];
/* Compute the number of expected bytes in the request. */
if( ( usCoilCnt & 0x0007 ) != 0 )
{
ucByteCountVerify = ( UCHAR )( usCoilCnt / 8 + 1 );
}
else
{
ucByteCountVerify = ( UCHAR )( usCoilCnt / 8 );
}
if( ( usCoilCnt >= 1 ) &&
( usCoilCnt <= MB_PDU_FUNC_WRITE_MUL_COILCNT_MAX ) &&
( ucByteCountVerify == ucByteCount ) )
{
eRegStatus =
eMBRegCoilsCB( &pucFrame[MB_PDU_FUNC_WRITE_MUL_VALUES_OFF],
usRegAddress, usCoilCnt, MB_REG_WRITE );
/* If an error occured convert it into a Modbus exception. */
if( eRegStatus != MB_ENOERR )
{
eStatus = prveMBError2Exception( eRegStatus );
}
else
{
/* The response contains the function code, the starting address
* and the quantity of registers. We reuse the old values in the
* buffer because they are still valid. */
*usLen = MB_PDU_FUNC_WRITE_MUL_BYTECNT_OFF;
}
}
else
{
eStatus = MB_EX_ILLEGAL_DATA_VALUE;
}
}
else
{
/* Can't be a valid write coil register request because the length
* is incorrect. */
eStatus = MB_EX_ILLEGAL_DATA_VALUE;
}
return eStatus;
}
#endif

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/*
* FreeModbus Libary: A portable Modbus implementation for Modbus ASCII/RTU.
* Copyright (C) 2013 Armink <armink.ztl@gmail.com>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* File: $Id: mbfunccoils_m.c,v 1.60 2013/10/12 15:10:12 Armink Add Master Functions
*/
/* ----------------------- System includes ----------------------------------*/
#include "stdlib.h"
#include "string.h"
/* ----------------------- Platform includes --------------------------------*/
#include "port.h"
/* ----------------------- Modbus includes ----------------------------------*/
#include "mb.h"
#include "mb_m.h"
#include "mbframe.h"
#include "mbproto.h"
#include "mbconfig.h"
/* ----------------------- Defines ------------------------------------------*/
#define MB_PDU_REQ_READ_ADDR_OFF ( MB_PDU_DATA_OFF + 0 )
#define MB_PDU_REQ_READ_COILCNT_OFF ( MB_PDU_DATA_OFF + 2 )
#define MB_PDU_REQ_READ_SIZE ( 4 )
#define MB_PDU_FUNC_READ_COILCNT_OFF ( MB_PDU_DATA_OFF + 0 )
#define MB_PDU_FUNC_READ_VALUES_OFF ( MB_PDU_DATA_OFF + 1 )
#define MB_PDU_FUNC_READ_SIZE_MIN ( 1 )
#define MB_PDU_REQ_WRITE_ADDR_OFF ( MB_PDU_DATA_OFF )
#define MB_PDU_REQ_WRITE_VALUE_OFF ( MB_PDU_DATA_OFF + 2 )
#define MB_PDU_REQ_WRITE_SIZE ( 4 )
#define MB_PDU_FUNC_WRITE_ADDR_OFF ( MB_PDU_DATA_OFF )
#define MB_PDU_FUNC_WRITE_VALUE_OFF ( MB_PDU_DATA_OFF + 2 )
#define MB_PDU_FUNC_WRITE_SIZE ( 4 )
#define MB_PDU_REQ_WRITE_MUL_ADDR_OFF ( MB_PDU_DATA_OFF )
#define MB_PDU_REQ_WRITE_MUL_COILCNT_OFF ( MB_PDU_DATA_OFF + 2 )
#define MB_PDU_REQ_WRITE_MUL_BYTECNT_OFF ( MB_PDU_DATA_OFF + 4 )
#define MB_PDU_REQ_WRITE_MUL_VALUES_OFF ( MB_PDU_DATA_OFF + 5 )
#define MB_PDU_REQ_WRITE_MUL_SIZE_MIN ( 5 )
#define MB_PDU_REQ_WRITE_MUL_COILCNT_MAX ( 0x07B0 )
#define MB_PDU_FUNC_WRITE_MUL_ADDR_OFF ( MB_PDU_DATA_OFF )
#define MB_PDU_FUNC_WRITE_MUL_COILCNT_OFF ( MB_PDU_DATA_OFF + 2 )
#define MB_PDU_FUNC_WRITE_MUL_SIZE ( 5 )
/* ----------------------- Static functions ---------------------------------*/
eMBException prveMBError2Exception( eMBErrorCode eErrorCode );
/* ----------------------- Start implementation -----------------------------*/
#if MB_MASTER_RTU_ENABLED > 0 || MB_MASTER_ASCII_ENABLED > 0
#if MB_FUNC_READ_COILS_ENABLED > 0
/**
* This function will request read coil.
*
* @param ucSndAddr salve address
* @param usCoilAddr coil start address
* @param usNCoils coil total number
* @param lTimeOut timeout (-1 will waiting forever)
*
* @return error code
*/
eMBMasterReqErrCode
eMBMasterReqReadCoils( UCHAR ucSndAddr, USHORT usCoilAddr, USHORT usNCoils ,LONG lTimeOut )
{
UCHAR *ucMBFrame;
eMBMasterReqErrCode eErrStatus = MB_MRE_NO_ERR;
if ( ucSndAddr > MB_MASTER_TOTAL_SLAVE_NUM ) eErrStatus = MB_MRE_ILL_ARG;
else if ( xMBMasterRunResTake( lTimeOut ) == FALSE ) eErrStatus = MB_MRE_MASTER_BUSY;
else
{
vMBMasterGetPDUSndBuf(&ucMBFrame);
vMBMasterSetDestAddress(ucSndAddr);
ucMBFrame[MB_PDU_FUNC_OFF] = MB_FUNC_READ_COILS;
ucMBFrame[MB_PDU_REQ_READ_ADDR_OFF] = usCoilAddr >> 8;
ucMBFrame[MB_PDU_REQ_READ_ADDR_OFF + 1] = usCoilAddr;
ucMBFrame[MB_PDU_REQ_READ_COILCNT_OFF ] = usNCoils >> 8;
ucMBFrame[MB_PDU_REQ_READ_COILCNT_OFF + 1] = usNCoils;
vMBMasterSetPDUSndLength( MB_PDU_SIZE_MIN + MB_PDU_REQ_READ_SIZE );
( void ) xMBMasterPortEventPost( EV_MASTER_FRAME_SENT );
eErrStatus = eMBMasterWaitRequestFinish( );
}
return eErrStatus;
}
eMBException
eMBMasterFuncReadCoils( UCHAR * pucFrame, USHORT * usLen )
{
UCHAR *ucMBFrame;
USHORT usRegAddress;
USHORT usCoilCount;
UCHAR ucByteCount;
eMBException eStatus = MB_EX_NONE;
eMBErrorCode eRegStatus;
/* If this request is broadcast, and it's read mode. This request don't need execute. */
if ( xMBMasterRequestIsBroadcast() )
{
eStatus = MB_EX_NONE;
}
else if ( *usLen >= MB_PDU_SIZE_MIN + MB_PDU_FUNC_READ_SIZE_MIN )
{
vMBMasterGetPDUSndBuf(&ucMBFrame);
usRegAddress = ( USHORT )( ucMBFrame[MB_PDU_REQ_READ_ADDR_OFF] << 8 );
usRegAddress |= ( USHORT )( ucMBFrame[MB_PDU_REQ_READ_ADDR_OFF + 1] );
usRegAddress++;
usCoilCount = ( USHORT )( ucMBFrame[MB_PDU_REQ_READ_COILCNT_OFF] << 8 );
usCoilCount |= ( USHORT )( ucMBFrame[MB_PDU_REQ_READ_COILCNT_OFF + 1] );
/* Test if the quantity of coils is a multiple of 8. If not last
* byte is only partially field with unused coils set to zero. */
if( ( usCoilCount & 0x0007 ) != 0 )
{
ucByteCount = ( UCHAR )( usCoilCount / 8 + 1 );
}
else
{
ucByteCount = ( UCHAR )( usCoilCount / 8 );
}
/* Check if the number of registers to read is valid. If not
* return Modbus illegal data value exception.
*/
if( ( usCoilCount >= 1 ) &&
( ucByteCount == pucFrame[MB_PDU_FUNC_READ_COILCNT_OFF] ) )
{
/* Make callback to fill the buffer. */
eRegStatus = eMBMasterRegCoilsCB( &pucFrame[MB_PDU_FUNC_READ_VALUES_OFF], usRegAddress, usCoilCount, MB_REG_READ );
/* If an error occured convert it into a Modbus exception. */
if( eRegStatus != MB_ENOERR )
{
eStatus = prveMBError2Exception( eRegStatus );
}
}
else
{
eStatus = MB_EX_ILLEGAL_DATA_VALUE;
}
}
else
{
/* Can't be a valid read coil register request because the length
* is incorrect. */
eStatus = MB_EX_ILLEGAL_DATA_VALUE;
}
return eStatus;
}
#endif
#if MB_FUNC_WRITE_COIL_ENABLED > 0
/**
* This function will request write one coil.
*
* @param ucSndAddr salve address
* @param usCoilAddr coil start address
* @param usCoilData data to be written
* @param lTimeOut timeout (-1 will waiting forever)
*
* @return error code
*
* @see eMBMasterReqWriteMultipleCoils
*/
eMBMasterReqErrCode
eMBMasterReqWriteCoil( UCHAR ucSndAddr, USHORT usCoilAddr, USHORT usCoilData, LONG lTimeOut )
{
UCHAR *ucMBFrame;
eMBMasterReqErrCode eErrStatus = MB_MRE_NO_ERR;
if ( ucSndAddr > MB_MASTER_TOTAL_SLAVE_NUM ) eErrStatus = MB_MRE_ILL_ARG;
else if ( ( usCoilData != 0xFF00 ) && ( usCoilData != 0x0000 ) ) eErrStatus = MB_MRE_ILL_ARG;
else if ( xMBMasterRunResTake( lTimeOut ) == FALSE ) eErrStatus = MB_MRE_MASTER_BUSY;
else
{
vMBMasterGetPDUSndBuf(&ucMBFrame);
vMBMasterSetDestAddress(ucSndAddr);
ucMBFrame[MB_PDU_FUNC_OFF] = MB_FUNC_WRITE_SINGLE_COIL;
ucMBFrame[MB_PDU_REQ_WRITE_ADDR_OFF] = usCoilAddr >> 8;
ucMBFrame[MB_PDU_REQ_WRITE_ADDR_OFF + 1] = usCoilAddr;
ucMBFrame[MB_PDU_REQ_WRITE_VALUE_OFF ] = usCoilData >> 8;
ucMBFrame[MB_PDU_REQ_WRITE_VALUE_OFF + 1] = usCoilData;
vMBMasterSetPDUSndLength( MB_PDU_SIZE_MIN + MB_PDU_REQ_WRITE_SIZE );
( void ) xMBMasterPortEventPost( EV_MASTER_FRAME_SENT );
eErrStatus = eMBMasterWaitRequestFinish( );
}
return eErrStatus;
}
eMBException
eMBMasterFuncWriteCoil( UCHAR * pucFrame, USHORT * usLen )
{
USHORT usRegAddress;
UCHAR ucBuf[2];
eMBException eStatus = MB_EX_NONE;
eMBErrorCode eRegStatus;
if( *usLen == ( MB_PDU_FUNC_WRITE_SIZE + MB_PDU_SIZE_MIN ) )
{
usRegAddress = ( USHORT )( pucFrame[MB_PDU_FUNC_WRITE_ADDR_OFF] << 8 );
usRegAddress |= ( USHORT )( pucFrame[MB_PDU_FUNC_WRITE_ADDR_OFF + 1] );
usRegAddress++;
if( ( pucFrame[MB_PDU_FUNC_WRITE_VALUE_OFF + 1] == 0x00 ) &&
( ( pucFrame[MB_PDU_FUNC_WRITE_VALUE_OFF] == 0xFF ) ||
( pucFrame[MB_PDU_FUNC_WRITE_VALUE_OFF] == 0x00 ) ) )
{
ucBuf[1] = 0;
if( pucFrame[MB_PDU_FUNC_WRITE_VALUE_OFF] == 0xFF )
{
ucBuf[0] = 1;
}
else
{
ucBuf[0] = 0;
}
eRegStatus =
eMBMasterRegCoilsCB( &ucBuf[0], usRegAddress, 1, MB_REG_WRITE );
/* If an error occured convert it into a Modbus exception. */
if( eRegStatus != MB_ENOERR )
{
eStatus = prveMBError2Exception( eRegStatus );
}
}
else
{
eStatus = MB_EX_ILLEGAL_DATA_VALUE;
}
}
else
{
/* Can't be a valid write coil register request because the length
* is incorrect. */
eStatus = MB_EX_ILLEGAL_DATA_VALUE;
}
return eStatus;
}
#endif
#if MB_FUNC_WRITE_MULTIPLE_COILS_ENABLED > 0
/**
* This function will request write multiple coils.
*
* @param ucSndAddr salve address
* @param usCoilAddr coil start address
* @param usNCoils coil total number
* @param usCoilData data to be written
* @param lTimeOut timeout (-1 will waiting forever)
*
* @return error code
*
* @see eMBMasterReqWriteCoil
*/
eMBMasterReqErrCode
eMBMasterReqWriteMultipleCoils( UCHAR ucSndAddr,
USHORT usCoilAddr, USHORT usNCoils, UCHAR * pucDataBuffer, LONG lTimeOut)
{
UCHAR *ucMBFrame;
USHORT usRegIndex = 0;
UCHAR ucByteCount;
eMBMasterReqErrCode eErrStatus = MB_MRE_NO_ERR;
if ( ucSndAddr > MB_MASTER_TOTAL_SLAVE_NUM ) eErrStatus = MB_MRE_ILL_ARG;
else if ( usNCoils > MB_PDU_REQ_WRITE_MUL_COILCNT_MAX ) eErrStatus = MB_MRE_ILL_ARG;
else if ( xMBMasterRunResTake( lTimeOut ) == FALSE ) eErrStatus = MB_MRE_MASTER_BUSY;
else
{
vMBMasterGetPDUSndBuf(&ucMBFrame);
vMBMasterSetDestAddress(ucSndAddr);
ucMBFrame[MB_PDU_FUNC_OFF] = MB_FUNC_WRITE_MULTIPLE_COILS;
ucMBFrame[MB_PDU_REQ_WRITE_MUL_ADDR_OFF] = usCoilAddr >> 8;
ucMBFrame[MB_PDU_REQ_WRITE_MUL_ADDR_OFF + 1] = usCoilAddr;
ucMBFrame[MB_PDU_REQ_WRITE_MUL_COILCNT_OFF] = usNCoils >> 8;
ucMBFrame[MB_PDU_REQ_WRITE_MUL_COILCNT_OFF + 1] = usNCoils ;
if( ( usNCoils & 0x0007 ) != 0 )
{
ucByteCount = ( UCHAR )( usNCoils / 8 + 1 );
}
else
{
ucByteCount = ( UCHAR )( usNCoils / 8 );
}
ucMBFrame[MB_PDU_REQ_WRITE_MUL_BYTECNT_OFF] = ucByteCount;
ucMBFrame += MB_PDU_REQ_WRITE_MUL_VALUES_OFF;
while( ucByteCount > usRegIndex)
{
*ucMBFrame++ = pucDataBuffer[usRegIndex++];
}
vMBMasterSetPDUSndLength( MB_PDU_SIZE_MIN + MB_PDU_REQ_WRITE_MUL_SIZE_MIN + ucByteCount );
( void ) xMBMasterPortEventPost( EV_MASTER_FRAME_SENT );
eErrStatus = eMBMasterWaitRequestFinish( );
}
return eErrStatus;
}
eMBException
eMBMasterFuncWriteMultipleCoils( UCHAR * pucFrame, USHORT * usLen )
{
USHORT usRegAddress;
USHORT usCoilCnt;
UCHAR ucByteCount;
UCHAR ucByteCountVerify;
UCHAR *ucMBFrame;
eMBException eStatus = MB_EX_NONE;
eMBErrorCode eRegStatus;
/* If this request is broadcast, the *usLen is not need check. */
if( ( *usLen == MB_PDU_FUNC_WRITE_MUL_SIZE ) || xMBMasterRequestIsBroadcast() )
{
vMBMasterGetPDUSndBuf(&ucMBFrame);
usRegAddress = ( USHORT )( pucFrame[MB_PDU_FUNC_WRITE_MUL_ADDR_OFF] << 8 );
usRegAddress |= ( USHORT )( pucFrame[MB_PDU_FUNC_WRITE_MUL_ADDR_OFF + 1] );
usRegAddress++;
usCoilCnt = ( USHORT )( pucFrame[MB_PDU_FUNC_WRITE_MUL_COILCNT_OFF] << 8 );
usCoilCnt |= ( USHORT )( pucFrame[MB_PDU_FUNC_WRITE_MUL_COILCNT_OFF + 1] );
ucByteCount = ucMBFrame[MB_PDU_REQ_WRITE_MUL_BYTECNT_OFF];
/* Compute the number of expected bytes in the request. */
if( ( usCoilCnt & 0x0007 ) != 0 )
{
ucByteCountVerify = ( UCHAR )( usCoilCnt / 8 + 1 );
}
else
{
ucByteCountVerify = ( UCHAR )( usCoilCnt / 8 );
}
if( ( usCoilCnt >= 1 ) && ( ucByteCountVerify == ucByteCount ) )
{
eRegStatus =
eMBMasterRegCoilsCB( &ucMBFrame[MB_PDU_REQ_WRITE_MUL_VALUES_OFF],
usRegAddress, usCoilCnt, MB_REG_WRITE );
/* If an error occured convert it into a Modbus exception. */
if( eRegStatus != MB_ENOERR )
{
eStatus = prveMBError2Exception( eRegStatus );
}
}
else
{
eStatus = MB_EX_ILLEGAL_DATA_VALUE;
}
}
else
{
/* Can't be a valid write coil register request because the length
* is incorrect. */
eStatus = MB_EX_ILLEGAL_DATA_VALUE;
}
return eStatus;
}
#endif
#endif

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/*
* FreeModbus Libary: A portable Modbus implementation for Modbus ASCII/RTU.
* Copyright (c) 2006-2018 Christian Walter <cwalter@embedded-solutions.at>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* File: $Id: mbfuncdiag.c,v 1.3 2006/12/07 22:10:34 wolti Exp $
*/

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/*
* FreeModbus Libary: A portable Modbus implementation for Modbus ASCII/RTU.
* Copyright (c) 2006-2018 Christian Walter <cwalter@embedded-solutions.at>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
*/
/* ----------------------- System includes ----------------------------------*/
#include "stdlib.h"
#include "string.h"
/* ----------------------- Platform includes --------------------------------*/
#include "port.h"
/* ----------------------- Modbus includes ----------------------------------*/
#include "mb.h"
#include "mbframe.h"
#include "mbproto.h"
#include "mbconfig.h"
/* ----------------------- Defines ------------------------------------------*/
#define MB_PDU_FUNC_READ_ADDR_OFF ( MB_PDU_DATA_OFF )
#define MB_PDU_FUNC_READ_DISCCNT_OFF ( MB_PDU_DATA_OFF + 2 )
#define MB_PDU_FUNC_READ_SIZE ( 4 )
#define MB_PDU_FUNC_READ_DISCCNT_MAX ( 0x07D0 )
/* ----------------------- Static functions ---------------------------------*/
eMBException prveMBError2Exception( eMBErrorCode eErrorCode );
/* ----------------------- Start implementation -----------------------------*/
#if MB_FUNC_READ_DISCRETE_INPUTS_ENABLED > 0
eMBException
eMBFuncReadDiscreteInputs( UCHAR * pucFrame, USHORT * usLen )
{
USHORT usRegAddress;
USHORT usDiscreteCnt;
UCHAR ucNBytes;
UCHAR *pucFrameCur;
eMBException eStatus = MB_EX_NONE;
eMBErrorCode eRegStatus;
if( *usLen == ( MB_PDU_FUNC_READ_SIZE + MB_PDU_SIZE_MIN ) )
{
usRegAddress = ( USHORT )( pucFrame[MB_PDU_FUNC_READ_ADDR_OFF] << 8 );
usRegAddress |= ( USHORT )( pucFrame[MB_PDU_FUNC_READ_ADDR_OFF + 1] );
usRegAddress++;
usDiscreteCnt = ( USHORT )( pucFrame[MB_PDU_FUNC_READ_DISCCNT_OFF] << 8 );
usDiscreteCnt |= ( USHORT )( pucFrame[MB_PDU_FUNC_READ_DISCCNT_OFF + 1] );
/* Check if the number of registers to read is valid. If not
* return Modbus illegal data value exception.
*/
if( ( usDiscreteCnt >= 1 ) &&
( usDiscreteCnt < MB_PDU_FUNC_READ_DISCCNT_MAX ) )
{
/* Set the current PDU data pointer to the beginning. */
pucFrameCur = &pucFrame[MB_PDU_FUNC_OFF];
*usLen = MB_PDU_FUNC_OFF;
/* First byte contains the function code. */
*pucFrameCur++ = MB_FUNC_READ_DISCRETE_INPUTS;
*usLen += 1;
/* Test if the quantity of coils is a multiple of 8. If not last
* byte is only partially field with unused coils set to zero. */
if( ( usDiscreteCnt & 0x0007 ) != 0 )
{
ucNBytes = ( UCHAR ) ( usDiscreteCnt / 8 + 1 );
}
else
{
ucNBytes = ( UCHAR ) ( usDiscreteCnt / 8 );
}
*pucFrameCur++ = ucNBytes;
*usLen += 1;
eRegStatus =
eMBRegDiscreteCB( pucFrameCur, usRegAddress, usDiscreteCnt );
/* If an error occured convert it into a Modbus exception. */
if( eRegStatus != MB_ENOERR )
{
eStatus = prveMBError2Exception( eRegStatus );
}
else
{
/* The response contains the function code, the starting address
* and the quantity of registers. We reuse the old values in the
* buffer because they are still valid. */
*usLen += ucNBytes;;
}
}
else
{
eStatus = MB_EX_ILLEGAL_DATA_VALUE;
}
}
else
{
/* Can't be a valid read coil register request because the length
* is incorrect. */
eStatus = MB_EX_ILLEGAL_DATA_VALUE;
}
return eStatus;
}
#endif

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/*
* FreeModbus Libary: A portable Modbus implementation for Modbus ASCII/RTU.
* Copyright (C) 2013 Armink <armink.ztl@gmail.com>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* File: $Id: mbfuncdisc_m.c,v 1.60 2013/10/15 8:48:20 Armink Add Master Functions Exp $
*/
/* ----------------------- System includes ----------------------------------*/
#include "stdlib.h"
#include "string.h"
/* ----------------------- Platform includes --------------------------------*/
#include "port.h"
/* ----------------------- Modbus includes ----------------------------------*/
#include "mb.h"
#include "mb_m.h"
#include "mbframe.h"
#include "mbproto.h"
#include "mbconfig.h"
/* ----------------------- Defines ------------------------------------------*/
#define MB_PDU_REQ_READ_ADDR_OFF ( MB_PDU_DATA_OFF + 0 )
#define MB_PDU_REQ_READ_DISCCNT_OFF ( MB_PDU_DATA_OFF + 2 )
#define MB_PDU_REQ_READ_SIZE ( 4 )
#define MB_PDU_FUNC_READ_DISCCNT_OFF ( MB_PDU_DATA_OFF + 0 )
#define MB_PDU_FUNC_READ_VALUES_OFF ( MB_PDU_DATA_OFF + 1 )
#define MB_PDU_FUNC_READ_SIZE_MIN ( 1 )
/* ----------------------- Static functions ---------------------------------*/
eMBException prveMBError2Exception( eMBErrorCode eErrorCode );
/* ----------------------- Start implementation -----------------------------*/
#if MB_MASTER_RTU_ENABLED > 0 || MB_MASTER_ASCII_ENABLED > 0
#if MB_FUNC_READ_DISCRETE_INPUTS_ENABLED > 0
/**
* This function will request read discrete inputs.
*
* @param ucSndAddr salve address
* @param usDiscreteAddr discrete start address
* @param usNDiscreteIn discrete total number
* @param lTimeOut timeout (-1 will waiting forever)
*
* @return error code
*/
eMBMasterReqErrCode
eMBMasterReqReadDiscreteInputs( UCHAR ucSndAddr, USHORT usDiscreteAddr, USHORT usNDiscreteIn, LONG lTimeOut )
{
UCHAR *ucMBFrame;
eMBMasterReqErrCode eErrStatus = MB_MRE_NO_ERR;
if ( ucSndAddr > MB_MASTER_TOTAL_SLAVE_NUM ) eErrStatus = MB_MRE_ILL_ARG;
else if ( xMBMasterRunResTake( lTimeOut ) == FALSE ) eErrStatus = MB_MRE_MASTER_BUSY;
else
{
vMBMasterGetPDUSndBuf(&ucMBFrame);
vMBMasterSetDestAddress(ucSndAddr);
ucMBFrame[MB_PDU_FUNC_OFF] = MB_FUNC_READ_DISCRETE_INPUTS;
ucMBFrame[MB_PDU_REQ_READ_ADDR_OFF] = usDiscreteAddr >> 8;
ucMBFrame[MB_PDU_REQ_READ_ADDR_OFF + 1] = usDiscreteAddr;
ucMBFrame[MB_PDU_REQ_READ_DISCCNT_OFF ] = usNDiscreteIn >> 8;
ucMBFrame[MB_PDU_REQ_READ_DISCCNT_OFF + 1] = usNDiscreteIn;
vMBMasterSetPDUSndLength( MB_PDU_SIZE_MIN + MB_PDU_REQ_READ_SIZE );
( void ) xMBMasterPortEventPost( EV_MASTER_FRAME_SENT );
eErrStatus = eMBMasterWaitRequestFinish( );
}
return eErrStatus;
}
eMBException
eMBMasterFuncReadDiscreteInputs( UCHAR * pucFrame, USHORT * usLen )
{
USHORT usRegAddress;
USHORT usDiscreteCnt;
UCHAR ucNBytes;
UCHAR *ucMBFrame;
eMBException eStatus = MB_EX_NONE;
eMBErrorCode eRegStatus;
/* If this request is broadcast, and it's read mode. This request don't need execute. */
if ( xMBMasterRequestIsBroadcast() )
{
eStatus = MB_EX_NONE;
}
else if( *usLen >= MB_PDU_SIZE_MIN + MB_PDU_FUNC_READ_SIZE_MIN )
{
vMBMasterGetPDUSndBuf(&ucMBFrame);
usRegAddress = ( USHORT )( ucMBFrame[MB_PDU_REQ_READ_ADDR_OFF] << 8 );
usRegAddress |= ( USHORT )( ucMBFrame[MB_PDU_REQ_READ_ADDR_OFF + 1] );
usRegAddress++;
usDiscreteCnt = ( USHORT )( ucMBFrame[MB_PDU_REQ_READ_DISCCNT_OFF] << 8 );
usDiscreteCnt |= ( USHORT )( ucMBFrame[MB_PDU_REQ_READ_DISCCNT_OFF + 1] );
/* Test if the quantity of coils is a multiple of 8. If not last
* byte is only partially field with unused coils set to zero. */
if( ( usDiscreteCnt & 0x0007 ) != 0 )
{
ucNBytes = ( UCHAR )( usDiscreteCnt / 8 + 1 );
}
else
{
ucNBytes = ( UCHAR )( usDiscreteCnt / 8 );
}
/* Check if the number of registers to read is valid. If not
* return Modbus illegal data value exception.
*/
if ((usDiscreteCnt >= 1) && ucNBytes == pucFrame[MB_PDU_FUNC_READ_DISCCNT_OFF])
{
/* Make callback to fill the buffer. */
eRegStatus = eMBMasterRegDiscreteCB( &pucFrame[MB_PDU_FUNC_READ_VALUES_OFF], usRegAddress, usDiscreteCnt );
/* If an error occured convert it into a Modbus exception. */
if( eRegStatus != MB_ENOERR )
{
eStatus = prveMBError2Exception( eRegStatus );
}
}
else
{
eStatus = MB_EX_ILLEGAL_DATA_VALUE;
}
}
else
{
/* Can't be a valid read coil register request because the length
* is incorrect. */
eStatus = MB_EX_ILLEGAL_DATA_VALUE;
}
return eStatus;
}
#endif
#endif

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/*
* FreeModbus Libary: A portable Modbus implementation for Modbus ASCII/RTU.
* Copyright (c) 2006-2018 Christian Walter <cwalter@embedded-solutions.at>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* File: $Id: mbfuncholding.c,v 1.12 2007/02/18 23:48:22 wolti Exp $
*/
/* ----------------------- System includes ----------------------------------*/
#include "stdlib.h"
#include "string.h"
/* ----------------------- Platform includes --------------------------------*/
#include "port.h"
/* ----------------------- Modbus includes ----------------------------------*/
#include "mb.h"
#include "mbframe.h"
#include "mbproto.h"
#include "mbconfig.h"
/* ----------------------- Defines ------------------------------------------*/
#define MB_PDU_FUNC_READ_ADDR_OFF ( MB_PDU_DATA_OFF + 0)
#define MB_PDU_FUNC_READ_REGCNT_OFF ( MB_PDU_DATA_OFF + 2 )
#define MB_PDU_FUNC_READ_SIZE ( 4 )
#define MB_PDU_FUNC_READ_REGCNT_MAX ( 0x007D )
#define MB_PDU_FUNC_WRITE_ADDR_OFF ( MB_PDU_DATA_OFF + 0)
#define MB_PDU_FUNC_WRITE_VALUE_OFF ( MB_PDU_DATA_OFF + 2 )
#define MB_PDU_FUNC_WRITE_SIZE ( 4 )
#define MB_PDU_FUNC_WRITE_MUL_ADDR_OFF ( MB_PDU_DATA_OFF + 0 )
#define MB_PDU_FUNC_WRITE_MUL_REGCNT_OFF ( MB_PDU_DATA_OFF + 2 )
#define MB_PDU_FUNC_WRITE_MUL_BYTECNT_OFF ( MB_PDU_DATA_OFF + 4 )
#define MB_PDU_FUNC_WRITE_MUL_VALUES_OFF ( MB_PDU_DATA_OFF + 5 )
#define MB_PDU_FUNC_WRITE_MUL_SIZE_MIN ( 5 )
#define MB_PDU_FUNC_WRITE_MUL_REGCNT_MAX ( 0x0078 )
#define MB_PDU_FUNC_READWRITE_READ_ADDR_OFF ( MB_PDU_DATA_OFF + 0 )
#define MB_PDU_FUNC_READWRITE_READ_REGCNT_OFF ( MB_PDU_DATA_OFF + 2 )
#define MB_PDU_FUNC_READWRITE_WRITE_ADDR_OFF ( MB_PDU_DATA_OFF + 4 )
#define MB_PDU_FUNC_READWRITE_WRITE_REGCNT_OFF ( MB_PDU_DATA_OFF + 6 )
#define MB_PDU_FUNC_READWRITE_BYTECNT_OFF ( MB_PDU_DATA_OFF + 8 )
#define MB_PDU_FUNC_READWRITE_WRITE_VALUES_OFF ( MB_PDU_DATA_OFF + 9 )
#define MB_PDU_FUNC_READWRITE_SIZE_MIN ( 9 )
/* ----------------------- Static functions ---------------------------------*/
eMBException prveMBError2Exception( eMBErrorCode eErrorCode );
/* ----------------------- Start implementation -----------------------------*/
#if MB_FUNC_WRITE_HOLDING_ENABLED > 0
eMBException
eMBFuncWriteHoldingRegister( UCHAR * pucFrame, USHORT * usLen )
{
USHORT usRegAddress;
eMBException eStatus = MB_EX_NONE;
eMBErrorCode eRegStatus;
if( *usLen == ( MB_PDU_FUNC_WRITE_SIZE + MB_PDU_SIZE_MIN ) )
{
usRegAddress = ( USHORT )( pucFrame[MB_PDU_FUNC_WRITE_ADDR_OFF] << 8 );
usRegAddress |= ( USHORT )( pucFrame[MB_PDU_FUNC_WRITE_ADDR_OFF + 1] );
usRegAddress++;
/* Make callback to update the value. */
eRegStatus = eMBRegHoldingCB( &pucFrame[MB_PDU_FUNC_WRITE_VALUE_OFF],
usRegAddress, 1, MB_REG_WRITE );
/* If an error occured convert it into a Modbus exception. */
if( eRegStatus != MB_ENOERR )
{
eStatus = prveMBError2Exception( eRegStatus );
}
}
else
{
/* Can't be a valid request because the length is incorrect. */
eStatus = MB_EX_ILLEGAL_DATA_VALUE;
}
return eStatus;
}
#endif
#if MB_FUNC_WRITE_MULTIPLE_HOLDING_ENABLED > 0
eMBException
eMBFuncWriteMultipleHoldingRegister( UCHAR * pucFrame, USHORT * usLen )
{
USHORT usRegAddress;
USHORT usRegCount;
UCHAR ucRegByteCount;
eMBException eStatus = MB_EX_NONE;
eMBErrorCode eRegStatus;
if( *usLen >= ( MB_PDU_FUNC_WRITE_MUL_SIZE_MIN + MB_PDU_SIZE_MIN ) )
{
usRegAddress = ( USHORT )( pucFrame[MB_PDU_FUNC_WRITE_MUL_ADDR_OFF] << 8 );
usRegAddress |= ( USHORT )( pucFrame[MB_PDU_FUNC_WRITE_MUL_ADDR_OFF + 1] );
usRegAddress++;
usRegCount = ( USHORT )( pucFrame[MB_PDU_FUNC_WRITE_MUL_REGCNT_OFF] << 8 );
usRegCount |= ( USHORT )( pucFrame[MB_PDU_FUNC_WRITE_MUL_REGCNT_OFF + 1] );
ucRegByteCount = pucFrame[MB_PDU_FUNC_WRITE_MUL_BYTECNT_OFF];
if( ( usRegCount >= 1 ) &&
( usRegCount <= MB_PDU_FUNC_WRITE_MUL_REGCNT_MAX ) &&
( ucRegByteCount == ( UCHAR ) ( 2 * usRegCount ) ) )
{
/* Make callback to update the register values. */
eRegStatus =
eMBRegHoldingCB( &pucFrame[MB_PDU_FUNC_WRITE_MUL_VALUES_OFF],
usRegAddress, usRegCount, MB_REG_WRITE );
/* If an error occured convert it into a Modbus exception. */
if( eRegStatus != MB_ENOERR )
{
eStatus = prveMBError2Exception( eRegStatus );
}
else
{
/* The response contains the function code, the starting
* address and the quantity of registers. We reuse the
* old values in the buffer because they are still valid.
*/
*usLen = MB_PDU_FUNC_WRITE_MUL_BYTECNT_OFF;
}
}
else
{
eStatus = MB_EX_ILLEGAL_DATA_VALUE;
}
}
else
{
/* Can't be a valid request because the length is incorrect. */
eStatus = MB_EX_ILLEGAL_DATA_VALUE;
}
return eStatus;
}
#endif
#if MB_FUNC_READ_HOLDING_ENABLED > 0
eMBException
eMBFuncReadHoldingRegister( UCHAR * pucFrame, USHORT * usLen )
{
USHORT usRegAddress;
USHORT usRegCount;
UCHAR *pucFrameCur;
eMBException eStatus = MB_EX_NONE;
eMBErrorCode eRegStatus;
if( *usLen == ( MB_PDU_FUNC_READ_SIZE + MB_PDU_SIZE_MIN ) )
{
usRegAddress = ( USHORT )( pucFrame[MB_PDU_FUNC_READ_ADDR_OFF] << 8 );
usRegAddress |= ( USHORT )( pucFrame[MB_PDU_FUNC_READ_ADDR_OFF + 1] );
usRegAddress++;
usRegCount = ( USHORT )( pucFrame[MB_PDU_FUNC_READ_REGCNT_OFF] << 8 );
usRegCount |= ( USHORT )( pucFrame[MB_PDU_FUNC_READ_REGCNT_OFF + 1] );
/* Check if the number of registers to read is valid. If not
* return Modbus illegal data value exception.
*/
if( ( usRegCount >= 1 ) && ( usRegCount <= MB_PDU_FUNC_READ_REGCNT_MAX ) )
{
/* Set the current PDU data pointer to the beginning. */
pucFrameCur = &pucFrame[MB_PDU_FUNC_OFF];
*usLen = MB_PDU_FUNC_OFF;
/* First byte contains the function code. */
*pucFrameCur++ = MB_FUNC_READ_HOLDING_REGISTER;
*usLen += 1;
/* Second byte in the response contain the number of bytes. */
*pucFrameCur++ = ( UCHAR ) ( usRegCount * 2 );
*usLen += 1;
/* Make callback to fill the buffer. */
eRegStatus = eMBRegHoldingCB( pucFrameCur, usRegAddress, usRegCount, MB_REG_READ );
/* If an error occured convert it into a Modbus exception. */
if( eRegStatus != MB_ENOERR )
{
eStatus = prveMBError2Exception( eRegStatus );
}
else
{
*usLen += usRegCount * 2;
}
}
else
{
eStatus = MB_EX_ILLEGAL_DATA_VALUE;
}
}
else
{
/* Can't be a valid request because the length is incorrect. */
eStatus = MB_EX_ILLEGAL_DATA_VALUE;
}
return eStatus;
}
#endif
#if MB_FUNC_READWRITE_HOLDING_ENABLED > 0
eMBException
eMBFuncReadWriteMultipleHoldingRegister( UCHAR * pucFrame, USHORT * usLen )
{
USHORT usRegReadAddress;
USHORT usRegReadCount;
USHORT usRegWriteAddress;
USHORT usRegWriteCount;
UCHAR ucRegWriteByteCount;
UCHAR *pucFrameCur;
eMBException eStatus = MB_EX_NONE;
eMBErrorCode eRegStatus;
if( *usLen >= ( MB_PDU_FUNC_READWRITE_SIZE_MIN + MB_PDU_SIZE_MIN ) )
{
usRegReadAddress = ( USHORT )( pucFrame[MB_PDU_FUNC_READWRITE_READ_ADDR_OFF] << 8U );
usRegReadAddress |= ( USHORT )( pucFrame[MB_PDU_FUNC_READWRITE_READ_ADDR_OFF + 1] );
usRegReadAddress++;
usRegReadCount = ( USHORT )( pucFrame[MB_PDU_FUNC_READWRITE_READ_REGCNT_OFF] << 8U );
usRegReadCount |= ( USHORT )( pucFrame[MB_PDU_FUNC_READWRITE_READ_REGCNT_OFF + 1] );
usRegWriteAddress = ( USHORT )( pucFrame[MB_PDU_FUNC_READWRITE_WRITE_ADDR_OFF] << 8U );
usRegWriteAddress |= ( USHORT )( pucFrame[MB_PDU_FUNC_READWRITE_WRITE_ADDR_OFF + 1] );
usRegWriteAddress++;
usRegWriteCount = ( USHORT )( pucFrame[MB_PDU_FUNC_READWRITE_WRITE_REGCNT_OFF] << 8U );
usRegWriteCount |= ( USHORT )( pucFrame[MB_PDU_FUNC_READWRITE_WRITE_REGCNT_OFF + 1] );
ucRegWriteByteCount = pucFrame[MB_PDU_FUNC_READWRITE_BYTECNT_OFF];
if( ( usRegReadCount >= 1 ) && ( usRegReadCount <= 0x7D ) &&
( usRegWriteCount >= 1 ) && ( usRegWriteCount <= 0x79 ) &&
( ( 2 * usRegWriteCount ) == ucRegWriteByteCount ) )
{
/* Make callback to update the register values. */
eRegStatus = eMBRegHoldingCB( &pucFrame[MB_PDU_FUNC_READWRITE_WRITE_VALUES_OFF],
usRegWriteAddress, usRegWriteCount, MB_REG_WRITE );
if( eRegStatus == MB_ENOERR )
{
/* Set the current PDU data pointer to the beginning. */
pucFrameCur = &pucFrame[MB_PDU_FUNC_OFF];
*usLen = MB_PDU_FUNC_OFF;
/* First byte contains the function code. */
*pucFrameCur++ = MB_FUNC_READWRITE_MULTIPLE_REGISTERS;
*usLen += 1;
/* Second byte in the response contain the number of bytes. */
*pucFrameCur++ = ( UCHAR ) ( usRegReadCount * 2 );
*usLen += 1;
/* Make the read callback. */
eRegStatus =
eMBRegHoldingCB( pucFrameCur, usRegReadAddress, usRegReadCount, MB_REG_READ );
if( eRegStatus == MB_ENOERR )
{
*usLen += 2 * usRegReadCount;
}
}
if( eRegStatus != MB_ENOERR )
{
eStatus = prveMBError2Exception( eRegStatus );
}
}
else
{
eStatus = MB_EX_ILLEGAL_DATA_VALUE;
}
}
return eStatus;
}
#endif

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/*
* FreeModbus Libary: A portable Modbus implementation for Modbus ASCII/RTU.
* Copyright (c) 2006-2018 Christian Walter <cwalter@embedded-solutions.at>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* File: $Id: mbfuncinput.c,v 1.10 2007/09/12 10:15:56 wolti Exp $
*/
/* ----------------------- System includes ----------------------------------*/
#include "stdlib.h"
#include "string.h"
/* ----------------------- Platform includes --------------------------------*/
#include "port.h"
/* ----------------------- Modbus includes ----------------------------------*/
#include "mb.h"
#include "mbframe.h"
#include "mbproto.h"
#include "mbconfig.h"
/* ----------------------- Defines ------------------------------------------*/
#define MB_PDU_FUNC_READ_ADDR_OFF ( MB_PDU_DATA_OFF )
#define MB_PDU_FUNC_READ_REGCNT_OFF ( MB_PDU_DATA_OFF + 2 )
#define MB_PDU_FUNC_READ_SIZE ( 4 )
#define MB_PDU_FUNC_READ_REGCNT_MAX ( 0x007D )
#define MB_PDU_FUNC_READ_RSP_BYTECNT_OFF ( MB_PDU_DATA_OFF )
/* ----------------------- Static functions ---------------------------------*/
eMBException prveMBError2Exception( eMBErrorCode eErrorCode );
/* ----------------------- Start implementation -----------------------------*/
#if MB_FUNC_READ_INPUT_ENABLED > 0
eMBException
eMBFuncReadInputRegister( UCHAR * pucFrame, USHORT * usLen )
{
USHORT usRegAddress;
USHORT usRegCount;
UCHAR *pucFrameCur;
eMBException eStatus = MB_EX_NONE;
eMBErrorCode eRegStatus;
if( *usLen == ( MB_PDU_FUNC_READ_SIZE + MB_PDU_SIZE_MIN ) )
{
usRegAddress = ( USHORT )( pucFrame[MB_PDU_FUNC_READ_ADDR_OFF] << 8 );
usRegAddress |= ( USHORT )( pucFrame[MB_PDU_FUNC_READ_ADDR_OFF + 1] );
usRegAddress++;
usRegCount = ( USHORT )( pucFrame[MB_PDU_FUNC_READ_REGCNT_OFF] << 8 );
usRegCount |= ( USHORT )( pucFrame[MB_PDU_FUNC_READ_REGCNT_OFF + 1] );
/* Check if the number of registers to read is valid. If not
* return Modbus illegal data value exception.
*/
if( ( usRegCount >= 1 )
&& ( usRegCount < MB_PDU_FUNC_READ_REGCNT_MAX ) )
{
/* Set the current PDU data pointer to the beginning. */
pucFrameCur = &pucFrame[MB_PDU_FUNC_OFF];
*usLen = MB_PDU_FUNC_OFF;
/* First byte contains the function code. */
*pucFrameCur++ = MB_FUNC_READ_INPUT_REGISTER;
*usLen += 1;
/* Second byte in the response contain the number of bytes. */
*pucFrameCur++ = ( UCHAR )( usRegCount * 2 );
*usLen += 1;
eRegStatus =
eMBRegInputCB( pucFrameCur, usRegAddress, usRegCount );
/* If an error occured convert it into a Modbus exception. */
if( eRegStatus != MB_ENOERR )
{
eStatus = prveMBError2Exception( eRegStatus );
}
else
{
*usLen += usRegCount * 2;
}
}
else
{
eStatus = MB_EX_ILLEGAL_DATA_VALUE;
}
}
else
{
/* Can't be a valid read input register request because the length
* is incorrect. */
eStatus = MB_EX_ILLEGAL_DATA_VALUE;
}
return eStatus;
}
#endif

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/*
* FreeModbus Libary: A portable Modbus implementation for Modbus ASCII/RTU.
* Copyright (c) 2006-2018 Christian Walter <cwalter@embedded-solutions.at>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* File: $Id: mbfuncother.c,v 1.8 2006/12/07 22:10:34 wolti Exp $
*/
/* ----------------------- System includes ----------------------------------*/
#include "stdlib.h"
#include "string.h"
/* ----------------------- Platform includes --------------------------------*/
#include "port.h"
/* ----------------------- Modbus includes ----------------------------------*/
#include "mb.h"
#include "mbframe.h"
#include "mbproto.h"
#include "mbconfig.h"
#if MB_FUNC_OTHER_REP_SLAVEID_ENABLED > 0
/* ----------------------- Static variables ---------------------------------*/
static UCHAR ucMBSlaveID[MB_FUNC_OTHER_REP_SLAVEID_BUF];
static USHORT usMBSlaveIDLen;
/* ----------------------- Start implementation -----------------------------*/
eMBErrorCode
eMBSetSlaveID( UCHAR ucSlaveID, BOOL xIsRunning,
UCHAR const *pucAdditional, USHORT usAdditionalLen )
{
eMBErrorCode eStatus = MB_ENOERR;
/* the first byte and second byte in the buffer is reserved for
* the parameter ucSlaveID and the running flag. The rest of
* the buffer is available for additional data. */
if( usAdditionalLen + 2 < MB_FUNC_OTHER_REP_SLAVEID_BUF )
{
usMBSlaveIDLen = 0;
ucMBSlaveID[usMBSlaveIDLen++] = ucSlaveID;
ucMBSlaveID[usMBSlaveIDLen++] = ( UCHAR )( xIsRunning ? 0xFF : 0x00 );
if( usAdditionalLen > 0 )
{
memcpy( &ucMBSlaveID[usMBSlaveIDLen], pucAdditional,
( size_t )usAdditionalLen );
usMBSlaveIDLen += usAdditionalLen;
}
}
else
{
eStatus = MB_ENORES;
}
return eStatus;
}
eMBException
eMBFuncReportSlaveID( UCHAR * pucFrame, USHORT * usLen )
{
memcpy( &pucFrame[MB_PDU_DATA_OFF], &ucMBSlaveID[0], ( size_t )usMBSlaveIDLen );
*usLen = ( USHORT )( MB_PDU_DATA_OFF + usMBSlaveIDLen );
return MB_EX_NONE;
}
#endif

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/*
* FreeModbus Libary: A portable Modbus implementation for Modbus ASCII/RTU.
* Copyright (c) 2006-2018 Christian Walter <cwalter@embedded-solutions.at>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* File: $Id: mbutils.c,v 1.6 2007/02/18 23:49:07 wolti Exp $
*/
/* ----------------------- System includes ----------------------------------*/
#include "stdlib.h"
#include "string.h"
/* ----------------------- Platform includes --------------------------------*/
#include "port.h"
/* ----------------------- Modbus includes ----------------------------------*/
#include "mb.h"
#include "mbproto.h"
/* ----------------------- Defines ------------------------------------------*/
#define BITS_UCHAR 8U
/* ----------------------- Start implementation -----------------------------*/
void
xMBUtilSetBits( UCHAR * ucByteBuf, USHORT usBitOffset, UCHAR ucNBits,
UCHAR ucValue )
{
USHORT usWordBuf;
USHORT usMask;
USHORT usByteOffset;
USHORT usNPreBits;
USHORT usValue = ucValue;
assert_param( ucNBits <= 8 );
assert_param( ( size_t )BITS_UCHAR == sizeof( UCHAR ) * 8 );
/* Calculate byte offset for first byte containing the bit values starting
* at usBitOffset. */
usByteOffset = ( USHORT )( ( usBitOffset ) / BITS_UCHAR );
/* How many bits precede our bits to set. */
usNPreBits = ( USHORT )( usBitOffset - usByteOffset * BITS_UCHAR );
/* Move bit field into position over bits to set */
usValue <<= usNPreBits;
/* Prepare a mask for setting the new bits. */
usMask = ( USHORT )( ( 1 << ( USHORT ) ucNBits ) - 1 );
usMask <<= usBitOffset - usByteOffset * BITS_UCHAR;
/* copy bits into temporary storage. */
usWordBuf = ucByteBuf[usByteOffset];
usWordBuf |= ucByteBuf[usByteOffset + 1] << BITS_UCHAR;
/* Zero out bit field bits and then or value bits into them. */
usWordBuf = ( USHORT )( ( usWordBuf & ( ~usMask ) ) | usValue );
/* move bits back into storage */
ucByteBuf[usByteOffset] = ( UCHAR )( usWordBuf & 0xFF );
ucByteBuf[usByteOffset + 1] = ( UCHAR )( usWordBuf >> BITS_UCHAR );
}
UCHAR
xMBUtilGetBits( UCHAR * ucByteBuf, USHORT usBitOffset, UCHAR ucNBits )
{
USHORT usWordBuf;
USHORT usMask;
USHORT usByteOffset;
USHORT usNPreBits;
/* Calculate byte offset for first byte containing the bit values starting
* at usBitOffset. */
usByteOffset = ( USHORT )( ( usBitOffset ) / BITS_UCHAR );
/* How many bits precede our bits to set. */
usNPreBits = ( USHORT )( usBitOffset - usByteOffset * BITS_UCHAR );
/* Prepare a mask for setting the new bits. */
usMask = ( USHORT )( ( 1 << ( USHORT ) ucNBits ) - 1 );
/* copy bits into temporary storage. */
usWordBuf = ucByteBuf[usByteOffset];
usWordBuf |= ucByteBuf[usByteOffset + 1] << BITS_UCHAR;
/* throw away unneeded bits. */
usWordBuf >>= usNPreBits;
/* mask away bits above the requested bitfield. */
usWordBuf &= usMask;
return ( UCHAR ) usWordBuf;
}
eMBException
prveMBError2Exception( eMBErrorCode eErrorCode )
{
eMBException eStatus;
switch ( eErrorCode )
{
case MB_ENOERR:
eStatus = MB_EX_NONE;
break;
case MB_ENOREG:
eStatus = MB_EX_ILLEGAL_DATA_ADDRESS;
break;
case MB_ETIMEDOUT:
eStatus = MB_EX_SLAVE_BUSY;
break;
default:
eStatus = MB_EX_SLAVE_DEVICE_FAILURE;
break;
}
return eStatus;
}

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/*
* FreeModbus Libary: A portable Modbus implementation for Modbus ASCII/RTU.
* Copyright (c) 2006-2018 Christian Walter <cwalter@embedded-solutions.at>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* File: $Id: mb.h,v 1.17 2006/12/07 22:10:34 wolti Exp $
*/
#ifndef _MB_H
#define _MB_H
#include "port.h"
#ifdef __cplusplus
PR_BEGIN_EXTERN_C
#endif
#include "mbport.h"
#include "mbproto.h"
/*! \defgroup modbus Modbus
* \code #include "mb.h" \endcode
*
* This module defines the interface for the application. It contains
* the basic functions and types required to use the Modbus protocol stack.
* A typical application will want to call eMBInit() first. If the device
* is ready to answer network requests it must then call eMBEnable() to activate
* the protocol stack. In the main loop the function eMBPoll() must be called
* periodically. The time interval between pooling depends on the configured
* Modbus timeout. If an RTOS is available a separate task should be created
* and the task should always call the function eMBPoll().
*
* \code
* // Initialize protocol stack in RTU mode for a slave with address 10 = 0x0A
* eMBInit( MB_RTU, 0x0A, 38400, MB_PAR_EVEN );
* // Enable the Modbus Protocol Stack.
* eMBEnable( );
* for( ;; )
* {
* // Call the main polling loop of the Modbus protocol stack.
* eMBPoll( );
* ...
* }
* \endcode
*/
/* ----------------------- Defines ------------------------------------------*/
/*! \ingroup modbus
* \brief Use the default Modbus TCP port (502)
*/
#define MB_TCP_PORT_USE_DEFAULT 0
/* ----------------------- Type definitions ---------------------------------*/
/*! \ingroup modbus
* \brief Modbus serial transmission modes (RTU/ASCII).
*
* Modbus serial supports two transmission modes. Either ASCII or RTU. RTU
* is faster but has more hardware requirements and requires a network with
* a low jitter. ASCII is slower and more reliable on slower links (E.g. modems)
*/
typedef enum
{
MB_RTU, /*!< RTU transmission mode. */
MB_ASCII, /*!< ASCII transmission mode. */
MB_TCP /*!< TCP mode. */
} eMBMode;
/*! \ingroup modbus
* \brief If register should be written or read.
*
* This value is passed to the callback functions which support either
* reading or writing register values. Writing means that the application
* registers should be updated and reading means that the modbus protocol
* stack needs to know the current register values.
*
* \see eMBRegHoldingCB( ), eMBRegCoilsCB( ), eMBRegDiscreteCB( ) and
* eMBRegInputCB( ).
*/
typedef enum
{
MB_REG_READ, /*!< Read register values and pass to protocol stack. */
MB_REG_WRITE /*!< Update register values. */
} eMBRegisterMode;
/*! \ingroup modbus
* \brief Errorcodes used by all function in the protocol stack.
*/
typedef enum
{
MB_ENOERR, /*!< no error. */
MB_ENOREG, /*!< illegal register address. */
MB_EINVAL, /*!< illegal argument. */
MB_EPORTERR, /*!< porting layer error. */
MB_ENORES, /*!< insufficient resources. */
MB_EIO, /*!< I/O error. */
MB_EILLSTATE, /*!< protocol stack in illegal state. */
MB_ETIMEDOUT /*!< timeout error occurred. */
} eMBErrorCode;
/* ----------------------- Function prototypes ------------------------------*/
/*! \ingroup modbus
* \brief Initialize the Modbus protocol stack.
*
* This functions initializes the ASCII or RTU module and calls the
* init functions of the porting layer to prepare the hardware. Please
* note that the receiver is still disabled and no Modbus frames are
* processed until eMBEnable( ) has been called.
*
* \param eMode If ASCII or RTU mode should be used.
* \param ucSlaveAddress The slave address. Only frames sent to this
* address or to the broadcast address are processed.
* \param ucPort The port to use. E.g. 1 for COM1 on windows. This value
* is platform dependent and some ports simply choose to ignore it.
* \param ulBaudRate The baudrate. E.g. 19200. Supported baudrates depend
* on the porting layer.
* \param eParity Parity used for serial transmission.
*
* \return If no error occurs the function returns eMBErrorCode::MB_ENOERR.
* The protocol is then in the disabled state and ready for activation
* by calling eMBEnable( ). Otherwise one of the following error codes
* is returned:
* - eMBErrorCode::MB_EINVAL If the slave address was not valid. Valid
* slave addresses are in the range 1 - 247.
* - eMBErrorCode::MB_EPORTERR IF the porting layer returned an error.
*/
eMBErrorCode eMBInit( eMBMode eMode, UCHAR ucSlaveAddress,
UCHAR ucPort, ULONG ulBaudRate, eMBParity eParity );
/*! \ingroup modbus
* \brief Initialize the Modbus protocol stack for Modbus TCP.
*
* This function initializes the Modbus TCP Module. Please note that
* frame processing is still disabled until eMBEnable( ) is called.
*
* \param usTCPPort The TCP port to listen on.
* \return If the protocol stack has been initialized correctly the function
* returns eMBErrorCode::MB_ENOERR. Otherwise one of the following error
* codes is returned:
* - eMBErrorCode::MB_EINVAL If the slave address was not valid. Valid
* slave addresses are in the range 1 - 247.
* - eMBErrorCode::MB_EPORTERR IF the porting layer returned an error.
*/
eMBErrorCode eMBTCPInit( USHORT usTCPPort );
/*! \ingroup modbus
* \brief Release resources used by the protocol stack.
*
* This function disables the Modbus protocol stack and release all
* hardware resources. It must only be called when the protocol stack
* is disabled.
*
* \note Note all ports implement this function. A port which wants to
* get an callback must define the macro MB_PORT_HAS_CLOSE to 1.
*
* \return If the resources where released it return eMBErrorCode::MB_ENOERR.
* If the protocol stack is not in the disabled state it returns
* eMBErrorCode::MB_EILLSTATE.
*/
eMBErrorCode eMBClose( void );
/*! \ingroup modbus
* \brief Enable the Modbus protocol stack.
*
* This function enables processing of Modbus frames. Enabling the protocol
* stack is only possible if it is in the disabled state.
*
* \return If the protocol stack is now in the state enabled it returns
* eMBErrorCode::MB_ENOERR. If it was not in the disabled state it
* return eMBErrorCode::MB_EILLSTATE.
*/
eMBErrorCode eMBEnable( void );
/*! \ingroup modbus
* \brief Disable the Modbus protocol stack.
*
* This function disables processing of Modbus frames.
*
* \return If the protocol stack has been disabled it returns
* eMBErrorCode::MB_ENOERR. If it was not in the enabled state it returns
* eMBErrorCode::MB_EILLSTATE.
*/
eMBErrorCode eMBDisable( void );
/*! \ingroup modbus
* \brief The main pooling loop of the Modbus protocol stack.
*
* This function must be called periodically. The timer interval required
* is given by the application dependent Modbus slave timeout. Internally the
* function calls xMBPortEventGet() and waits for an event from the receiver or
* transmitter state machines.
*
* \return If the protocol stack is not in the enabled state the function
* returns eMBErrorCode::MB_EILLSTATE. Otherwise it returns
* eMBErrorCode::MB_ENOERR.
*/
eMBErrorCode eMBPoll( void );
/*! \ingroup modbus
* \brief Configure the slave id of the device.
*
* This function should be called when the Modbus function <em>Report Slave ID</em>
* is enabled ( By defining MB_FUNC_OTHER_REP_SLAVEID_ENABLED in mbconfig.h ).
*
* \param ucSlaveID Values is returned in the <em>Slave ID</em> byte of the
* <em>Report Slave ID</em> response.
* \param xIsRunning If TRUE the <em>Run Indicator Status</em> byte is set to 0xFF.
* otherwise the <em>Run Indicator Status</em> is 0x00.
* \param pucAdditional Values which should be returned in the <em>Additional</em>
* bytes of the <em> Report Slave ID</em> response.
* \param usAdditionalLen Length of the buffer <code>pucAdditonal</code>.
*
* \return If the static buffer defined by MB_FUNC_OTHER_REP_SLAVEID_BUF in
* mbconfig.h is to small it returns eMBErrorCode::MB_ENORES. Otherwise
* it returns eMBErrorCode::MB_ENOERR.
*/
eMBErrorCode eMBSetSlaveID( UCHAR ucSlaveID, BOOL xIsRunning,
UCHAR const *pucAdditional,
USHORT usAdditionalLen );
/*! \ingroup modbus
* \brief Registers a callback handler for a given function code.
*
* This function registers a new callback handler for a given function code.
* The callback handler supplied is responsible for interpreting the Modbus PDU and
* the creation of an appropriate response. In case of an error it should return
* one of the possible Modbus exceptions which results in a Modbus exception frame
* sent by the protocol stack.
*
* \param ucFunctionCode The Modbus function code for which this handler should
* be registers. Valid function codes are in the range 1 to 127.
* \param pxHandler The function handler which should be called in case
* such a frame is received. If \c NULL a previously registered function handler
* for this function code is removed.
*
* \return eMBErrorCode::MB_ENOERR if the handler has been installed. If no
* more resources are available it returns eMBErrorCode::MB_ENORES. In this
* case the values in mbconfig.h should be adjusted. If the argument was not
* valid it returns eMBErrorCode::MB_EINVAL.
*/
eMBErrorCode eMBRegisterCB( UCHAR ucFunctionCode,
pxMBFunctionHandler pxHandler );
/* ----------------------- Callback -----------------------------------------*/
/*! \defgroup modbus_registers Modbus Registers
* \code #include "mb.h" \endcode
* The protocol stack does not internally allocate any memory for the
* registers. This makes the protocol stack very small and also usable on
* low end targets. In addition the values don't have to be in the memory
* and could for example be stored in a flash.<br>
* Whenever the protocol stack requires a value it calls one of the callback
* function with the register address and the number of registers to read
* as an argument. The application should then read the actual register values
* (for example the ADC voltage) and should store the result in the supplied
* buffer.<br>
* If the protocol stack wants to update a register value because a write
* register function was received a buffer with the new register values is
* passed to the callback function. The function should then use these values
* to update the application register values.
*/
/*! \ingroup modbus_registers
* \brief Callback function used if the value of a <em>Input Register</em>
* is required by the protocol stack. The starting register address is given
* by \c usAddress and the last register is given by <tt>usAddress +
* usNRegs - 1</tt>.
*
* \param pucRegBuffer A buffer where the callback function should write
* the current value of the modbus registers to.
* \param usAddress The starting address of the register. Input registers
* are in the range 1 - 65535.
* \param usNRegs Number of registers the callback function must supply.
*
* \return The function must return one of the following error codes:
* - eMBErrorCode::MB_ENOERR If no error occurred. In this case a normal
* Modbus response is sent.
* - eMBErrorCode::MB_ENOREG If the application can not supply values
* for registers within this range. In this case a
* <b>ILLEGAL DATA ADDRESS</b> exception frame is sent as a response.
* - eMBErrorCode::MB_ETIMEDOUT If the requested register block is
* currently not available and the application dependent response
* timeout would be violated. In this case a <b>SLAVE DEVICE BUSY</b>
* exception is sent as a response.
* - eMBErrorCode::MB_EIO If an unrecoverable error occurred. In this case
* a <b>SLAVE DEVICE FAILURE</b> exception is sent as a response.
*/
eMBErrorCode eMBRegInputCB( UCHAR * pucRegBuffer, USHORT usAddress,
USHORT usNRegs );
/*! \ingroup modbus_registers
* \brief Callback function used if a <em>Holding Register</em> value is
* read or written by the protocol stack. The starting register address
* is given by \c usAddress and the last register is given by
* <tt>usAddress + usNRegs - 1</tt>.
*
* \param pucRegBuffer If the application registers values should be updated the
* buffer points to the new registers values. If the protocol stack needs
* to now the current values the callback function should write them into
* this buffer.
* \param usAddress The starting address of the register.
* \param usNRegs Number of registers to read or write.
* \param eMode If eMBRegisterMode::MB_REG_WRITE the application register
* values should be updated from the values in the buffer. For example
* this would be the case when the Modbus master has issued an
* <b>WRITE SINGLE REGISTER</b> command.
* If the value eMBRegisterMode::MB_REG_READ the application should copy
* the current values into the buffer \c pucRegBuffer.
*
* \return The function must return one of the following error codes:
* - eMBErrorCode::MB_ENOERR If no error occurred. In this case a normal
* Modbus response is sent.
* - eMBErrorCode::MB_ENOREG If the application can not supply values
* for registers within this range. In this case a
* <b>ILLEGAL DATA ADDRESS</b> exception frame is sent as a response.
* - eMBErrorCode::MB_ETIMEDOUT If the requested register block is
* currently not available and the application dependent response
* timeout would be violated. In this case a <b>SLAVE DEVICE BUSY</b>
* exception is sent as a response.
* - eMBErrorCode::MB_EIO If an unrecoverable error occurred. In this case
* a <b>SLAVE DEVICE FAILURE</b> exception is sent as a response.
*/
eMBErrorCode eMBRegHoldingCB( UCHAR * pucRegBuffer, USHORT usAddress,
USHORT usNRegs, eMBRegisterMode eMode );
/*! \ingroup modbus_registers
* \brief Callback function used if a <em>Coil Register</em> value is
* read or written by the protocol stack. If you are going to use
* this function you might use the functions xMBUtilSetBits( ) and
* xMBUtilGetBits( ) for working with bitfields.
*
* \param pucRegBuffer The bits are packed in bytes where the first coil
* starting at address \c usAddress is stored in the LSB of the
* first byte in the buffer <code>pucRegBuffer</code>.
* If the buffer should be written by the callback function unused
* coil values (I.e. if not a multiple of eight coils is used) should be set
* to zero.
* \param usAddress The first coil number.
* \param usNCoils Number of coil values requested.
* \param eMode If eMBRegisterMode::MB_REG_WRITE the application values should
* be updated from the values supplied in the buffer \c pucRegBuffer.
* If eMBRegisterMode::MB_REG_READ the application should store the current
* values in the buffer \c pucRegBuffer.
*
* \return The function must return one of the following error codes:
* - eMBErrorCode::MB_ENOERR If no error occurred. In this case a normal
* Modbus response is sent.
* - eMBErrorCode::MB_ENOREG If the application does not map an coils
* within the requested address range. In this case a
* <b>ILLEGAL DATA ADDRESS</b> is sent as a response.
* - eMBErrorCode::MB_ETIMEDOUT If the requested register block is
* currently not available and the application dependent response
* timeout would be violated. In this case a <b>SLAVE DEVICE BUSY</b>
* exception is sent as a response.
* - eMBErrorCode::MB_EIO If an unrecoverable error occurred. In this case
* a <b>SLAVE DEVICE FAILURE</b> exception is sent as a response.
*/
eMBErrorCode eMBRegCoilsCB( UCHAR * pucRegBuffer, USHORT usAddress,
USHORT usNCoils, eMBRegisterMode eMode );
/*! \ingroup modbus_registers
* \brief Callback function used if a <em>Input Discrete Register</em> value is
* read by the protocol stack.
*
* If you are going to use his function you might use the functions
* xMBUtilSetBits( ) and xMBUtilGetBits( ) for working with bitfields.
*
* \param pucRegBuffer The buffer should be updated with the current
* coil values. The first discrete input starting at \c usAddress must be
* stored at the LSB of the first byte in the buffer. If the requested number
* is not a multiple of eight the remaining bits should be set to zero.
* \param usAddress The starting address of the first discrete input.
* \param usNDiscrete Number of discrete input values.
* \return The function must return one of the following error codes:
* - eMBErrorCode::MB_ENOERR If no error occurred. In this case a normal
* Modbus response is sent.
* - eMBErrorCode::MB_ENOREG If no such discrete inputs exists.
* In this case a <b>ILLEGAL DATA ADDRESS</b> exception frame is sent
* as a response.
* - eMBErrorCode::MB_ETIMEDOUT If the requested register block is
* currently not available and the application dependent response
* timeout would be violated. In this case a <b>SLAVE DEVICE BUSY</b>
* exception is sent as a response.
* - eMBErrorCode::MB_EIO If an unrecoverable error occurred. In this case
* a <b>SLAVE DEVICE FAILURE</b> exception is sent as a response.
*/
eMBErrorCode eMBRegDiscreteCB( UCHAR * pucRegBuffer, USHORT usAddress,
USHORT usNDiscrete );
#ifdef __cplusplus
PR_END_EXTERN_C
#endif
#endif

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/*
* FreeModbus Libary: A portable Modbus implementation for Modbus ASCII/RTU.
* Copyright (C) 2013 Armink <armink.ztl@gmail.com>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* File: $Id: mb_m.h,v 1.60 2013/09/03 10:20:05 Armink Add Master Functions $
*/
#ifndef _MB_M_H
#define _MB_M_H
#ifdef __cplusplus
PR_BEGIN_EXTERN_C
#endif
/*! \defgroup modbus Modbus
* \code #include "mb_m.h" \endcode
*
* This module defines the interface for the application. It contains
* the basic functions and types required to use the Modbus Master protocol stack.
* A typical application will want to call eMBMasterInit() first. If the device
* is ready to answer network requests it must then call eMBEnable() to activate
* the protocol stack. In the main loop the function eMBMasterPoll() must be called
* periodically. The time interval between pooling depends on the configured
* Modbus timeout. If an RTOS is available a separate task should be created
* and the task should always call the function eMBMasterPoll().
*
* \code
* // Initialize protocol stack in RTU mode for a Master
* eMBMasterInit( MB_RTU, 38400, MB_PAR_EVEN );
* // Enable the Modbus Protocol Stack.
* eMBMasterEnable( );
* for( ;; )
* {
* // Call the main polling loop of the Modbus Master protocol stack.
* eMBMasterPoll( );
* ...
* }
* \endcode
*/
/* ----------------------- Defines ------------------------------------------*/
/*! \ingroup modbus
* \brief Use the default Modbus Master TCP port (502)
*/
#define MB_MASTER_TCP_PORT_USE_DEFAULT 0
/* ----------------------- Type definitions ---------------------------------*/
/*! \ingroup modbus
* \brief Errorcodes used by all function in the Master request.
*/
typedef enum
{
MB_MRE_NO_ERR, /*!< no error. */
MB_MRE_NO_REG, /*!< illegal register address. */
MB_MRE_ILL_ARG, /*!< illegal argument. */
MB_MRE_REV_DATA, /*!< receive data error. */
MB_MRE_TIMEDOUT, /*!< timeout error occurred. */
MB_MRE_MASTER_BUSY, /*!< master is busy now. */
MB_MRE_EXE_FUN /*!< execute function error. */
} eMBMasterReqErrCode;
/*! \ingroup modbus
* \brief TimerMode is Master 3 kind of Timer modes.
*/
typedef enum
{
MB_TMODE_T35, /*!< Master receive frame T3.5 timeout. */
MB_TMODE_RESPOND_TIMEOUT, /*!< Master wait respond for slave. */
MB_TMODE_CONVERT_DELAY /*!< Master sent broadcast ,then delay sometime.*/
}eMBMasterTimerMode;
/* ----------------------- Function prototypes ------------------------------*/
/*! \ingroup modbus
* \brief Initialize the Modbus Master protocol stack.
*
* This functions initializes the ASCII or RTU module and calls the
* init functions of the porting layer to prepare the hardware. Please
* note that the receiver is still disabled and no Modbus frames are
* processed until eMBMasterEnable( ) has been called.
*
* \param eMode If ASCII or RTU mode should be used.
* \param ucPort The port to use. E.g. 1 for COM1 on windows. This value
* is platform dependent and some ports simply choose to ignore it.
* \param ulBaudRate The baudrate. E.g. 19200. Supported baudrates depend
* on the porting layer.
* \param eParity Parity used for serial transmission.
*
* \return If no error occurs the function returns eMBErrorCode::MB_ENOERR.
* The protocol is then in the disabled state and ready for activation
* by calling eMBMasterEnable( ). Otherwise one of the following error codes
* is returned:
* - eMBErrorCode::MB_EPORTERR IF the porting layer returned an error.
*/
eMBErrorCode eMBMasterInit( eMBMode eMode, UCHAR ucPort,
ULONG ulBaudRate, eMBParity eParity );
/*! \ingroup modbus
* \brief Initialize the Modbus Master protocol stack for Modbus TCP.
*
* This function initializes the Modbus TCP Module. Please note that
* frame processing is still disabled until eMBEnable( ) is called.
*
* \param usTCPPort The TCP port to listen on.
* \return If the protocol stack has been initialized correctly the function
* returns eMBErrorCode::MB_ENOERR. Otherwise one of the following error
* codes is returned:
* - eMBErrorCode::MB_EINVAL If the slave address was not valid. Valid
* slave addresses are in the range 1 - 247.
* - eMBErrorCode::MB_EPORTERR IF the porting layer returned an error.
*/
eMBErrorCode eMBMasterTCPInit( USHORT usTCPPort );
/*! \ingroup modbus
* \brief Release resources used by the protocol stack.
*
* This function disables the Modbus Master protocol stack and release all
* hardware resources. It must only be called when the protocol stack
* is disabled.
*
* \note Note all ports implement this function. A port which wants to
* get an callback must define the macro MB_PORT_HAS_CLOSE to 1.
*
* \return If the resources where released it return eMBErrorCode::MB_ENOERR.
* If the protocol stack is not in the disabled state it returns
* eMBErrorCode::MB_EILLSTATE.
*/
eMBErrorCode eMBMasterClose( void );
/*! \ingroup modbus
* \brief Enable the Modbus Master protocol stack.
*
* This function enables processing of Modbus Master frames. Enabling the protocol
* stack is only possible if it is in the disabled state.
*
* \return If the protocol stack is now in the state enabled it returns
* eMBErrorCode::MB_ENOERR. If it was not in the disabled state it
* return eMBErrorCode::MB_EILLSTATE.
*/
eMBErrorCode eMBMasterEnable( void );
/*! \ingroup modbus
* \brief Disable the Modbus Master protocol stack.
*
* This function disables processing of Modbus frames.
*
* \return If the protocol stack has been disabled it returns
* eMBErrorCode::MB_ENOERR. If it was not in the enabled state it returns
* eMBErrorCode::MB_EILLSTATE.
*/
eMBErrorCode eMBMasterDisable( void );
/*! \ingroup modbus
* \brief Check the Modbus Master protocol stack has established or not.
*
* This function must be called and check the return value before calling
* any other functions.
*
* \return If the protocol stack has been established or not
* TRUE. the protocol stack has established
* FALSE. the protocol stack hasn't established
*/
BOOL eMBMasterIsEstablished( void );
/*! \ingroup modbus
* \brief The main pooling loop of the Modbus Master protocol stack.
*
* This function must be called periodically. The timer interval required
* is given by the application dependent Modbus slave timeout. Internally the
* function calls xMBMasterPortEventGet() and waits for an event from the receiver or
* transmitter state machines.
*
* \return If the protocol stack is not in the enabled state the function
* returns eMBErrorCode::MB_EILLSTATE. Otherwise it returns
* eMBErrorCode::MB_ENOERR.
*/
eMBErrorCode eMBMasterPoll( void );
/*! \ingroup modbus
* \brief Registers a callback handler for a given function code.
*
* This function registers a new callback handler for a given function code.
* The callback handler supplied is responsible for interpreting the Modbus PDU and
* the creation of an appropriate response. In case of an error it should return
* one of the possible Modbus exceptions which results in a Modbus exception frame
* sent by the protocol stack.
*
* \param ucFunctionCode The Modbus function code for which this handler should
* be registers. Valid function codes are in the range 1 to 127.
* \param pxHandler The function handler which should be called in case
* such a frame is received. If \c NULL a previously registered function handler
* for this function code is removed.
*
* \return eMBErrorCode::MB_ENOERR if the handler has been installed. If no
* more resources are available it returns eMBErrorCode::MB_ENORES. In this
* case the values in mbconfig.h should be adjusted. If the argument was not
* valid it returns eMBErrorCode::MB_EINVAL.
*/
eMBErrorCode eMBMasterRegisterCB( UCHAR ucFunctionCode,
pxMBFunctionHandler pxHandler );
/* ----------------------- Callback -----------------------------------------*/
/*! \defgroup modbus_master registers Modbus Registers
* \code #include "mb_m.h" \endcode
* The protocol stack does not internally allocate any memory for the
* registers. This makes the protocol stack very small and also usable on
* low end targets. In addition the values don't have to be in the memory
* and could for example be stored in a flash.<br>
* Whenever the protocol stack requires a value it calls one of the callback
* function with the register address and the number of registers to read
* as an argument. The application should then read the actual register values
* (for example the ADC voltage) and should store the result in the supplied
* buffer.<br>
* If the protocol stack wants to update a register value because a write
* register function was received a buffer with the new register values is
* passed to the callback function. The function should then use these values
* to update the application register values.
*/
/*! \ingroup modbus_registers
* \brief Callback function used if the value of a <em>Input Register</em>
* is required by the protocol stack. The starting register address is given
* by \c usAddress and the last register is given by <tt>usAddress +
* usNRegs - 1</tt>.
*
* \param pucRegBuffer A buffer where the callback function should write
* the current value of the modbus registers to.
* \param usAddress The starting address of the register. Input registers
* are in the range 1 - 65535.
* \param usNRegs Number of registers the callback function must supply.
*
* \return The function must return one of the following error codes:
* - eMBErrorCode::MB_ENOERR If no error occurred. In this case a normal
* Modbus response is sent.
* - eMBErrorCode::MB_ENOREG If the application does not map an coils
* within the requested address range. In this case a
* <b>ILLEGAL DATA ADDRESS</b> is sent as a response.
*/
eMBErrorCode eMBMasterRegInputCB( UCHAR * pucRegBuffer, USHORT usAddress,
USHORT usNRegs );
/*! \ingroup modbus_registers
* \brief Callback function used if a <em>Holding Register</em> value is
* read or written by the protocol stack. The starting register address
* is given by \c usAddress and the last register is given by
* <tt>usAddress + usNRegs - 1</tt>.
*
* \param pucRegBuffer If the application registers values should be updated the
* buffer points to the new registers values. If the protocol stack needs
* to now the current values the callback function should write them into
* this buffer.
* \param usAddress The starting address of the register.
* \param usNRegs Number of registers to read or write.
* \param eMode If eMBRegisterMode::MB_REG_WRITE the application register
* values should be updated from the values in the buffer. For example
* this would be the case when the Modbus master has issued an
* <b>WRITE SINGLE REGISTER</b> command.
* If the value eMBRegisterMode::MB_REG_READ the application should copy
* the current values into the buffer \c pucRegBuffer.
*
* \return The function must return one of the following error codes:
* - eMBErrorCode::MB_ENOERR If no error occurred. In this case a normal
* Modbus response is sent.
* - eMBErrorCode::MB_ENOREG If the application does not map an coils
* within the requested address range. In this case a
* <b>ILLEGAL DATA ADDRESS</b> is sent as a response.
*/
eMBErrorCode eMBMasterRegHoldingCB( UCHAR * pucRegBuffer, USHORT usAddress,
USHORT usNRegs, eMBRegisterMode eMode );
/*! \ingroup modbus_registers
* \brief Callback function used if a <em>Coil Register</em> value is
* read or written by the protocol stack. If you are going to use
* this function you might use the functions xMBUtilSetBits( ) and
* xMBUtilGetBits( ) for working with bitfields.
*
* \param pucRegBuffer The bits are packed in bytes where the first coil
* starting at address \c usAddress is stored in the LSB of the
* first byte in the buffer <code>pucRegBuffer</code>.
* If the buffer should be written by the callback function unused
* coil values (I.e. if not a multiple of eight coils is used) should be set
* to zero.
* \param usAddress The first coil number.
* \param usNCoils Number of coil values requested.
* \param eMode If eMBRegisterMode::MB_REG_WRITE the application values should
* be updated from the values supplied in the buffer \c pucRegBuffer.
* If eMBRegisterMode::MB_REG_READ the application should store the current
* values in the buffer \c pucRegBuffer.
*
* \return The function must return one of the following error codes:
* - eMBErrorCode::MB_ENOERR If no error occurred. In this case a normal
* Modbus response is sent.
* - eMBErrorCode::MB_ENOREG If the application does not map an coils
* within the requested address range. In this case a
* <b>ILLEGAL DATA ADDRESS</b> is sent as a response.
*/
eMBErrorCode eMBMasterRegCoilsCB( UCHAR * pucRegBuffer, USHORT usAddress,
USHORT usNCoils, eMBRegisterMode eMode );
/*! \ingroup modbus_registers
* \brief Callback function used if a <em>Input Discrete Register</em> value is
* read by the protocol stack.
*
* If you are going to use his function you might use the functions
* xMBUtilSetBits( ) and xMBUtilGetBits( ) for working with bitfields.
*
* \param pucRegBuffer The buffer should be updated with the current
* coil values. The first discrete input starting at \c usAddress must be
* stored at the LSB of the first byte in the buffer. If the requested number
* is not a multiple of eight the remaining bits should be set to zero.
* \param usAddress The starting address of the first discrete input.
* \param usNDiscrete Number of discrete input values.
* \return The function must return one of the following error codes:
* - eMBErrorCode::MB_ENOERR If no error occurred. In this case a normal
* Modbus response is sent.
* - eMBErrorCode::MB_ENOREG If the application does not map an coils
* within the requested address range. In this case a
* <b>ILLEGAL DATA ADDRESS</b> is sent as a response.
*/
eMBErrorCode eMBMasterRegDiscreteCB( UCHAR * pucRegBuffer, USHORT usAddress,
USHORT usNDiscrete );
/*! \ingroup modbus
*\brief These Modbus functions are called for user when Modbus run in Master Mode.
*/
eMBMasterReqErrCode
eMBMasterReqReadInputRegister( UCHAR ucSndAddr, USHORT usRegAddr, USHORT usNRegs, LONG lTimeOut );
eMBMasterReqErrCode
eMBMasterReqWriteHoldingRegister( UCHAR ucSndAddr, USHORT usRegAddr, USHORT usRegData, LONG lTimeOut );
eMBMasterReqErrCode
eMBMasterReqWriteMultipleHoldingRegister( UCHAR ucSndAddr, USHORT usRegAddr,
USHORT usNRegs, USHORT * pusDataBuffer, LONG lTimeOut );
eMBMasterReqErrCode
eMBMasterReqReadHoldingRegister( UCHAR ucSndAddr, USHORT usRegAddr, USHORT usNRegs, LONG lTimeOut );
eMBMasterReqErrCode
eMBMasterReqReadWriteMultipleHoldingRegister( UCHAR ucSndAddr,
USHORT usReadRegAddr, USHORT usNReadRegs, USHORT * pusDataBuffer,
USHORT usWriteRegAddr, USHORT usNWriteRegs, LONG lTimeOut );
eMBMasterReqErrCode
eMBMasterReqReadCoils( UCHAR ucSndAddr, USHORT usCoilAddr, USHORT usNCoils, LONG lTimeOut );
eMBMasterReqErrCode
eMBMasterReqWriteCoil( UCHAR ucSndAddr, USHORT usCoilAddr, USHORT usCoilData, LONG lTimeOut );
eMBMasterReqErrCode
eMBMasterReqWriteMultipleCoils( UCHAR ucSndAddr,
USHORT usCoilAddr, USHORT usNCoils, UCHAR * pucDataBuffer, LONG lTimeOut );
eMBMasterReqErrCode
eMBMasterReqReadDiscreteInputs( UCHAR ucSndAddr, USHORT usDiscreteAddr, USHORT usNDiscreteIn, LONG lTimeOut );
eMBException
eMBMasterFuncReportSlaveID( UCHAR * pucFrame, USHORT * usLen );
eMBException
eMBMasterFuncReadInputRegister( UCHAR * pucFrame, USHORT * usLen );
eMBException
eMBMasterFuncReadHoldingRegister( UCHAR * pucFrame, USHORT * usLen );
eMBException
eMBMasterFuncWriteHoldingRegister( UCHAR * pucFrame, USHORT * usLen );
eMBException
eMBMasterFuncWriteMultipleHoldingRegister( UCHAR * pucFrame, USHORT * usLen );
eMBException
eMBMasterFuncReadCoils( UCHAR * pucFrame, USHORT * usLen );
eMBException
eMBMasterFuncWriteCoil( UCHAR * pucFrame, USHORT * usLen );
eMBException
eMBMasterFuncWriteMultipleCoils( UCHAR * pucFrame, USHORT * usLen );
eMBException
eMBMasterFuncReadDiscreteInputs( UCHAR * pucFrame, USHORT * usLen );
eMBException
eMBMasterFuncReadWriteMultipleHoldingRegister( UCHAR * pucFrame, USHORT * usLen );
/*! \ingroup modbus
*\brief These functions are interface for Modbus Master
*/
void vMBMasterGetPDUSndBuf( UCHAR ** pucFrame );
UCHAR ucMBMasterGetDestAddress( void );
void vMBMasterSetDestAddress( UCHAR Address );
BOOL xMBMasterGetCBRunInMasterMode( void );
void vMBMasterSetCBRunInMasterMode( BOOL IsMasterMode );
USHORT usMBMasterGetPDUSndLength( void );
void vMBMasterSetPDUSndLength( USHORT SendPDULength );
void vMBMasterSetCurTimerMode( eMBMasterTimerMode eMBTimerMode );
BOOL xMBMasterRequestIsBroadcast( void );
eMBMasterErrorEventType eMBMasterGetErrorType( void );
void vMBMasterSetErrorType( eMBMasterErrorEventType errorType );
eMBMasterReqErrCode eMBMasterWaitRequestFinish( void );
/* ----------------------- Callback -----------------------------------------*/
#ifdef __cplusplus
PR_END_EXTERN_C
#endif
#endif

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/*
* FreeModbus Libary: A portable Modbus implementation for Modbus ASCII/RTU.
* Copyright (c) 2006-2018 Christian Walter <cwalter@embedded-solutions.at>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* File: $Id: mbconfig.h,v 1.14 2006/12/07 22:10:34 wolti Exp $
* $Id: mbconfig.h,v 1.60 2013/08/13 21:19:55 Armink Add Master Functions $
*/
#ifndef _MB_CONFIG_H
#define _MB_CONFIG_H
#ifdef __cplusplus
PR_BEGIN_EXTERN_C
#endif
/* ----------------------- Defines ------------------------------------------*/
/*! \defgroup modbus_cfg Modbus Configuration
*
* Most modules in the protocol stack are completly optional and can be
* excluded. This is specially important if target resources are very small
* and program memory space should be saved.<br>
*
* All of these settings are available in the file <code>mbconfig.h</code>
*/
/*! \addtogroup modbus_cfg
* @{
*/
/*! \brief If Modbus Master ASCII support is enabled. */
#define MB_MASTER_ASCII_ENABLED (0)
/*! \brief If Modbus Master RTU support is enabled. */
#define MB_MASTER_RTU_ENABLED (1)
/*! \brief If Modbus Master TCP support is enabled. */
#define MB_MASTER_TCP_ENABLED (0)
/*! \brief If Modbus Slave ASCII support is enabled. */
#define MB_SLAVE_ASCII_ENABLED (0)
/*! \brief If Modbus Slave RTU support is enabled. */
#define MB_SLAVE_RTU_ENABLED (1)
/*! \brief If Modbus Slave TCP support is enabled. */
#define MB_SLAVE_TCP_ENABLED (0)
/*! \brief The character timeout value for Modbus ASCII.
*
* The character timeout value is not fixed for Modbus ASCII and is therefore
* a configuration option. It should be set to the maximum expected delay
* time of the network.
*/
#define MB_ASCII_TIMEOUT_SEC (1)
/*! \brief Maximum number of Modbus functions codes the protocol stack
* should support.
*
* The maximum number of supported Modbus functions must be greater than
* the sum of all enabled functions in this file and custom function
* handlers. If set to small adding more functions will fail.
*/
#define MB_FUNC_HANDLERS_MAX (16)
/*! \brief Number of bytes which should be allocated for the <em>Report Slave ID
* </em>command.
*
* This number limits the maximum size of the additional segment in the
* report slave id function. See eMBSetSlaveID( ) for more information on
* how to set this value. It is only used if MB_FUNC_OTHER_REP_SLAVEID_ENABLED
* is set to <code>1</code>.
*/
#define MB_FUNC_OTHER_REP_SLAVEID_BUF (32)
/*! \brief If the <em>Report Slave ID</em> function should be enabled. */
#define MB_FUNC_OTHER_REP_SLAVEID_ENABLED (1)
/*! \brief If the <em>Read Input Registers</em> function should be enabled. */
#define MB_FUNC_READ_INPUT_ENABLED (1)
/*! \brief If the <em>Read Holding Registers</em> function should be enabled. */
#define MB_FUNC_READ_HOLDING_ENABLED (1)
/*! \brief If the <em>Write Single Register</em> function should be enabled. */
#define MB_FUNC_WRITE_HOLDING_ENABLED (1)
/*! \brief If the <em>Write Multiple registers</em> function should be enabled. */
#define MB_FUNC_WRITE_MULTIPLE_HOLDING_ENABLED (1)
/*! \brief If the <em>Read Coils</em> function should be enabled. */
#define MB_FUNC_READ_COILS_ENABLED (1)
/*! \brief If the <em>Write Coils</em> function should be enabled. */
#define MB_FUNC_WRITE_COIL_ENABLED (1)
/*! \brief If the <em>Write Multiple Coils</em> function should be enabled. */
#define MB_FUNC_WRITE_MULTIPLE_COILS_ENABLED (1)
/*! \brief If the <em>Read Discrete Inputs</em> function should be enabled. */
#define MB_FUNC_READ_DISCRETE_INPUTS_ENABLED (1)
/*! \brief If the <em>Read/Write Multiple Registers</em> function should be enabled. */
#define MB_FUNC_READWRITE_HOLDING_ENABLED (1)
/*! @} */
#ifdef __cplusplus
PR_END_EXTERN_C
#endif
#if MB_MASTER_RTU_ENABLED > 0 || MB_MASTER_ASCII_ENABLED > 0
/*! \brief If master send a broadcast frame,the master will wait time of convert to delay,
* then master can send other frame */
#define MB_MASTER_DELAY_MS_CONVERT (200)
/*! \brief If master send a frame which is not broadcast,the master will wait sometime for slave.
* And if slave is not respond in this time,the master will process this timeout error.
* Then master can send other frame */
#define MB_MASTER_TIMEOUT_MS_RESPOND (100)
/*! \brief The total slaves in Modbus Master system. Default 16.
* \note : The slave ID must be continuous from 1.*/
#define MB_MASTER_TOTAL_SLAVE_NUM (16)
#endif
#endif

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/*
* FreeModbus Libary: A portable Modbus implementation for Modbus ASCII/RTU.
* Copyright (c) 2006-2018 Christian Walter <cwalter@embedded-solutions.at>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* File: $Id: mbframe.h,v 1.9 2006/12/07 22:10:34 wolti Exp $
*/
#ifndef _MB_FRAME_H
#define _MB_FRAME_H
#ifdef __cplusplus
PR_BEGIN_EXTERN_C
#endif
/*!
* Constants which defines the format of a modbus frame. The example is
* shown for a Modbus RTU/ASCII frame. Note that the Modbus PDU is not
* dependent on the underlying transport.
*
* <code>
* <------------------------ MODBUS SERIAL LINE PDU (1) ------------------->
* <----------- MODBUS PDU (1') ---------------->
* +-----------+---------------+----------------------------+-------------+
* | Address | Function Code | Data | CRC/LRC |
* +-----------+---------------+----------------------------+-------------+
* | | | |
* (2) (3/2') (3') (4)
*
* (1) ... MB_SER_PDU_SIZE_MAX = 256
* (2) ... MB_SER_PDU_ADDR_OFF = 0
* (3) ... MB_SER_PDU_PDU_OFF = 1
* (4) ... MB_SER_PDU_SIZE_CRC = 2
*
* (1') ... MB_PDU_SIZE_MAX = 253
* (2') ... MB_PDU_FUNC_OFF = 0
* (3') ... MB_PDU_DATA_OFF = 1
* </code>
*/
/* ----------------------- Defines ------------------------------------------*/
#define MB_PDU_SIZE_MAX 253 /*!< Maximum size of a PDU. */
#define MB_PDU_SIZE_MIN 1 /*!< Function Code */
#define MB_PDU_FUNC_OFF 0 /*!< Offset of function code in PDU. */
#define MB_PDU_DATA_OFF 1 /*!< Offset for response data in PDU. */
/* ----------------------- Prototypes 0-------------------------------------*/
typedef void ( *pvMBFrameStart ) ( void );
typedef void ( *pvMBFrameStop ) ( void );
typedef eMBErrorCode( *peMBFrameReceive ) ( UCHAR * pucRcvAddress,
UCHAR ** pucFrame,
USHORT * pusLength );
typedef eMBErrorCode( *peMBFrameSend ) ( UCHAR slaveAddress,
const UCHAR * pucFrame,
USHORT usLength );
typedef void( *pvMBFrameClose ) ( void );
#ifdef __cplusplus
PR_END_EXTERN_C
#endif
#endif

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/*
* FreeModbus Libary: A portable Modbus implementation for Modbus ASCII/RTU.
* Copyright (c) 2006-2018 Christian Walter <cwalter@embedded-solutions.at>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* File: $Id: mbfunc.h,v 1.12 2006/12/07 22:10:34 wolti Exp $
*/
#ifndef _MB_FUNC_H
#define _MB_FUNC_H
#ifdef __cplusplus
PR_BEGIN_EXTERN_C
#endif
#if MB_FUNC_OTHER_REP_SLAVEID_BUF > 0
eMBException eMBFuncReportSlaveID( UCHAR * pucFrame, USHORT * usLen );
#endif
#if MB_FUNC_READ_INPUT_ENABLED > 0
eMBException eMBFuncReadInputRegister( UCHAR * pucFrame, USHORT * usLen );
#endif
#if MB_FUNC_READ_HOLDING_ENABLED > 0
eMBException eMBFuncReadHoldingRegister( UCHAR * pucFrame, USHORT * usLen );
#endif
#if MB_FUNC_WRITE_HOLDING_ENABLED > 0
eMBException eMBFuncWriteHoldingRegister( UCHAR * pucFrame, USHORT * usLen );
#endif
#if MB_FUNC_WRITE_MULTIPLE_HOLDING_ENABLED > 0
eMBException eMBFuncWriteMultipleHoldingRegister( UCHAR * pucFrame, USHORT * usLen );
#endif
#if MB_FUNC_READ_COILS_ENABLED > 0
eMBException eMBFuncReadCoils( UCHAR * pucFrame, USHORT * usLen );
#endif
#if MB_FUNC_WRITE_COIL_ENABLED > 0
eMBException eMBFuncWriteCoil( UCHAR * pucFrame, USHORT * usLen );
#endif
#if MB_FUNC_WRITE_MULTIPLE_COILS_ENABLED > 0
eMBException eMBFuncWriteMultipleCoils( UCHAR * pucFrame, USHORT * usLen );
#endif
#if MB_FUNC_READ_DISCRETE_INPUTS_ENABLED > 0
eMBException eMBFuncReadDiscreteInputs( UCHAR * pucFrame, USHORT * usLen );
#endif
#if MB_FUNC_READWRITE_HOLDING_ENABLED > 0
eMBException eMBFuncReadWriteMultipleHoldingRegister( UCHAR * pucFrame, USHORT * usLen );
#endif
#ifdef __cplusplus
PR_END_EXTERN_C
#endif
#endif

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/*
* FreeModbus Libary: A portable Modbus implementation for Modbus ASCII/RTU.
* Copyright (c) 2006-2018 Christian Walter <cwalter@embedded-solutions.at>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* File: $Id: mbport.h,v 1.17 2006/12/07 22:10:34 wolti Exp $
* mbport.h,v 1.60 2013/08/17 11:42:56 Armink Add Master Functions $
*/
#ifndef _MB_PORT_H
#define _MB_PORT_H
#ifdef __cplusplus
PR_BEGIN_EXTERN_C
#endif
/* ----------------------- Defines ------------------------------------------*/
/* ----------------------- Type definitions ---------------------------------*/
typedef enum
{
EV_READY = 1<<0, /*!< Startup finished. */
EV_FRAME_RECEIVED = 1<<1, /*!< Frame received. */
EV_EXECUTE = 1<<2, /*!< Execute function. */
EV_FRAME_SENT = 1<<3 /*!< Frame sent. */
} eMBEventType;
typedef enum
{
EV_MASTER_READY = 1<<0, /*!< Startup finished. */
EV_MASTER_FRAME_RECEIVED = 1<<1, /*!< Frame received. */
EV_MASTER_EXECUTE = 1<<2, /*!< Execute function. */
EV_MASTER_FRAME_SENT = 1<<3, /*!< Frame sent. */
EV_MASTER_ERROR_PROCESS = 1<<4, /*!< Frame error process. */
EV_MASTER_PROCESS_SUCESS = 1<<5, /*!< Request process success. */
EV_MASTER_ERROR_RESPOND_TIMEOUT = 1<<6, /*!< Request respond timeout. */
EV_MASTER_ERROR_RECEIVE_DATA = 1<<7, /*!< Request receive data error. */
EV_MASTER_ERROR_EXECUTE_FUNCTION = 1<<8, /*!< Request execute function error. */
} eMBMasterEventType;
typedef enum
{
EV_ERROR_RESPOND_TIMEOUT, /*!< Slave respond timeout. */
EV_ERROR_RECEIVE_DATA, /*!< Receive frame data erroe. */
EV_ERROR_EXECUTE_FUNCTION, /*!< Execute function error. */
} eMBMasterErrorEventType;
/*! \ingroup modbus
* \brief Parity used for characters in serial mode.
*
* The parity which should be applied to the characters sent over the serial
* link. Please note that this values are actually passed to the porting
* layer and therefore not all parity modes might be available.
*/
typedef enum
{
MB_PAR_NONE, /*!< No parity. */
MB_PAR_ODD, /*!< Odd parity. */
MB_PAR_EVEN /*!< Even parity. */
} eMBParity;
/* ----------------------- Supporting functions -----------------------------*/
BOOL xMBPortEventInit( void );
BOOL xMBPortEventPost( eMBEventType eEvent );
BOOL xMBPortEventGet( /*@out@ */ eMBEventType * eEvent );
BOOL xMBMasterPortEventInit( void );
BOOL xMBMasterPortEventPost( eMBMasterEventType eEvent );
BOOL xMBMasterPortEventGet( /*@out@ */ eMBMasterEventType * eEvent );
void vMBMasterOsResInit( void );
BOOL xMBMasterRunResTake( int32_t time );
void vMBMasterRunResRelease( void );
/* ----------------------- Serial port functions ----------------------------*/
BOOL xMBPortSerialInit( UCHAR ucPort, ULONG ulBaudRate,
UCHAR ucDataBits, eMBParity eParity );
void vMBPortClose( void );
void xMBPortSerialClose( void );
void vMBPortSerialEnable( BOOL xRxEnable, BOOL xTxEnable );
INLINE BOOL xMBPortSerialGetByte( CHAR * pucByte );
INLINE BOOL xMBPortSerialPutByte( CHAR ucByte );
BOOL xMBMasterPortSerialInit( UCHAR ucPort, ULONG ulBaudRate,
UCHAR ucDataBits, eMBParity eParity );
void vMBMasterPortClose( void );
void xMBMasterPortSerialClose( void );
void vMBMasterPortSerialEnable( BOOL xRxEnable, BOOL xTxEnable );
INLINE BOOL xMBMasterPortSerialGetByte( CHAR * pucByte );
INLINE BOOL xMBMasterPortSerialPutByte( CHAR ucByte );
/* ----------------------- Timers functions ---------------------------------*/
BOOL xMBPortTimersInit( USHORT usTimeOut50us );
void xMBPortTimersClose( void );
INLINE void vMBPortTimersEnable( void );
INLINE void vMBPortTimersDisable( void );
BOOL xMBMasterPortTimersInit( USHORT usTimeOut50us );
void xMBMasterPortTimersClose( void );
INLINE void vMBMasterPortTimersT35Enable( void );
INLINE void vMBMasterPortTimersConvertDelayEnable( void );
INLINE void vMBMasterPortTimersRespondTimeoutEnable( void );
INLINE void vMBMasterPortTimersDisable( void );
/* ----------------- Callback for the master error process ------------------*/
void vMBMasterErrorCBRespondTimeout( UCHAR ucDestAddress, const UCHAR* pucPDUData,
USHORT ucPDULength );
void vMBMasterErrorCBReceiveData( UCHAR ucDestAddress, const UCHAR* pucPDUData,
USHORT ucPDULength );
void vMBMasterErrorCBExecuteFunction( UCHAR ucDestAddress, const UCHAR* pucPDUData,
USHORT ucPDULength );
void vMBMasterCBRequestScuuess( void );
/* ----------------------- Callback for the protocol stack ------------------*/
/*!
* \brief Callback function for the porting layer when a new byte is
* available.
*
* Depending upon the mode this callback function is used by the RTU or
* ASCII transmission layers. In any case a call to xMBPortSerialGetByte()
* must immediately return a new character.
*
* \return <code>TRUE</code> if a event was posted to the queue because
* a new byte was received. The port implementation should wake up the
* tasks which are currently blocked on the eventqueue.
*/
extern BOOL( *pxMBFrameCBByteReceived ) ( void );
extern BOOL( *pxMBFrameCBTransmitterEmpty ) ( void );
extern BOOL( *pxMBPortCBTimerExpired ) ( void );
extern BOOL( *pxMBMasterFrameCBByteReceived ) ( void );
extern BOOL( *pxMBMasterFrameCBTransmitterEmpty ) ( void );
extern BOOL( *pxMBMasterPortCBTimerExpired ) ( void );
/* ----------------------- TCP port functions -------------------------------*/
BOOL xMBTCPPortInit( USHORT usTCPPort );
void vMBTCPPortClose( void );
void vMBTCPPortDisable( void );
BOOL xMBTCPPortGetRequest( UCHAR **ppucMBTCPFrame, USHORT * usTCPLength );
BOOL xMBTCPPortSendResponse( const UCHAR *pucMBTCPFrame, USHORT usTCPLength );
#ifdef __cplusplus
PR_END_EXTERN_C
#endif
#endif

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/*
* FreeModbus Libary: A portable Modbus implementation for Modbus ASCII/RTU.
* Copyright (c) 2006-2018 Christian Walter <cwalter@embedded-solutions.at>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* File: $Id: mbproto.h,v 1.14 2006/12/07 22:10:34 wolti Exp $
*/
#ifndef _MB_PROTO_H
#define _MB_PROTO_H
#ifdef __cplusplus
PR_BEGIN_EXTERN_C
#endif
/* ----------------------- Defines ------------------------------------------*/
#define MB_ADDRESS_BROADCAST ( 0 ) /*! Modbus broadcast address. */
#define MB_ADDRESS_MIN ( 1 ) /*! Smallest possible slave address. */
#define MB_ADDRESS_MAX ( 247 ) /*! Biggest possible slave address. */
#define MB_FUNC_NONE ( 0 )
#define MB_FUNC_READ_COILS ( 1 )
#define MB_FUNC_READ_DISCRETE_INPUTS ( 2 )
#define MB_FUNC_WRITE_SINGLE_COIL ( 5 )
#define MB_FUNC_WRITE_MULTIPLE_COILS ( 15 )
#define MB_FUNC_READ_HOLDING_REGISTER ( 3 )
#define MB_FUNC_READ_INPUT_REGISTER ( 4 )
#define MB_FUNC_WRITE_REGISTER ( 6 )
#define MB_FUNC_WRITE_MULTIPLE_REGISTERS ( 16 )
#define MB_FUNC_READWRITE_MULTIPLE_REGISTERS ( 23 )
#define MB_FUNC_DIAG_READ_EXCEPTION ( 7 )
#define MB_FUNC_DIAG_DIAGNOSTIC ( 8 )
#define MB_FUNC_DIAG_GET_COM_EVENT_CNT ( 11 )
#define MB_FUNC_DIAG_GET_COM_EVENT_LOG ( 12 )
#define MB_FUNC_OTHER_REPORT_SLAVEID ( 17 )
#define MB_FUNC_ERROR ( 128 )
/* ----------------------- Type definitions ---------------------------------*/
typedef enum
{
MB_EX_NONE = 0x00,
MB_EX_ILLEGAL_FUNCTION = 0x01,
MB_EX_ILLEGAL_DATA_ADDRESS = 0x02,
MB_EX_ILLEGAL_DATA_VALUE = 0x03,
MB_EX_SLAVE_DEVICE_FAILURE = 0x04,
MB_EX_ACKNOWLEDGE = 0x05,
MB_EX_SLAVE_BUSY = 0x06,
MB_EX_MEMORY_PARITY_ERROR = 0x08,
MB_EX_GATEWAY_PATH_FAILED = 0x0A,
MB_EX_GATEWAY_TGT_FAILED = 0x0B
} eMBException;
typedef eMBException( *pxMBFunctionHandler ) ( UCHAR * pucFrame, USHORT * pusLength );
typedef struct
{
UCHAR ucFunctionCode;
pxMBFunctionHandler pxHandler;
} xMBFunctionHandler;
#ifdef __cplusplus
PR_END_EXTERN_C
#endif
#endif

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/*
* FreeModbus Libary: A portable Modbus implementation for Modbus ASCII/RTU.
* Copyright (c) 2006-2018 Christian Walter <cwalter@embedded-solutions.at>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* File: $Id: mbutils.h,v 1.5 2006/12/07 22:10:34 wolti Exp $
*/
#ifndef _MB_UTILS_H
#define _MB_UTILS_H
#ifdef __cplusplus
PR_BEGIN_EXTERN_C
#endif
/*! \defgroup modbus_utils Utilities
*
* This module contains some utility functions which can be used by
* the application. It includes some special functions for working with
* bitfields backed by a character array buffer.
*
*/
/*! \addtogroup modbus_utils
* @{
*/
/*! \brief Function to set bits in a byte buffer.
*
* This function allows the efficient use of an array to implement bitfields.
* The array used for storing the bits must always be a multiple of two
* bytes. Up to eight bits can be set or cleared in one operation.
*
* \param ucByteBuf A buffer where the bit values are stored. Must be a
* multiple of 2 bytes. No length checking is performed and if
* usBitOffset / 8 is greater than the size of the buffer memory contents
* is overwritten.
* \param usBitOffset The starting address of the bits to set. The first
* bit has the offset 0.
* \param ucNBits Number of bits to modify. The value must always be smaller
* than 8.
* \param ucValues Thew new values for the bits. The value for the first bit
* starting at <code>usBitOffset</code> is the LSB of the value
* <code>ucValues</code>
*
* \code
* ucBits[2] = {0, 0};
*
* // Set bit 4 to 1 (read: set 1 bit starting at bit offset 4 to value 1)
* xMBUtilSetBits( ucBits, 4, 1, 1 );
*
* // Set bit 7 to 1 and bit 8 to 0.
* xMBUtilSetBits( ucBits, 7, 2, 0x01 );
*
* // Set bits 8 - 11 to 0x05 and bits 12 - 15 to 0x0A;
* xMBUtilSetBits( ucBits, 8, 8, 0x5A);
* \endcode
*/
void xMBUtilSetBits( UCHAR * ucByteBuf, USHORT usBitOffset,
UCHAR ucNBits, UCHAR ucValues );
/*! \brief Function to read bits in a byte buffer.
*
* This function is used to extract up bit values from an array. Up to eight
* bit values can be extracted in one step.
*
* \param ucByteBuf A buffer where the bit values are stored.
* \param usBitOffset The starting address of the bits to set. The first
* bit has the offset 0.
* \param ucNBits Number of bits to modify. The value must always be smaller
* than 8.
*
* \code
* UCHAR ucBits[2] = {0, 0};
* UCHAR ucResult;
*
* // Extract the bits 3 - 10.
* ucResult = xMBUtilGetBits( ucBits, 3, 8 );
* \endcode
*/
UCHAR xMBUtilGetBits( UCHAR * ucByteBuf, USHORT usBitOffset,
UCHAR ucNBits );
/*! @} */
#ifdef __cplusplus
PR_END_EXTERN_C
#endif
#endif

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/*
* FreeModbus Libary: A portable Modbus implementation for Modbus ASCII/RTU.
* Copyright (c) 2006-2018 Christian Walter <cwalter@embedded-solutions.at>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* File: $Id: mb.c,v 1.27 2007/02/18 23:45:41 wolti Exp $
*/
/* ----------------------- System includes ----------------------------------*/
#include "stdlib.h"
#include "string.h"
/* ----------------------- Platform includes --------------------------------*/
#include "port.h"
/* ----------------------- Modbus includes ----------------------------------*/
#include "mb.h"
#include "mbconfig.h"
#include "mbframe.h"
#include "mbproto.h"
#include "mbfunc.h"
#include "mbport.h"
#if MB_SLAVE_RTU_ENABLED == 1
#include "mbrtu.h"
#endif
#if MB_SLAVE_ASCII_ENABLED == 1
#include "mbascii.h"
#endif
#if MB_SLAVE_TCP_ENABLED == 1
#include "mbtcp.h"
#endif
#ifndef MB_PORT_HAS_CLOSE
#define MB_PORT_HAS_CLOSE 0
#endif
/* ----------------------- Static variables ---------------------------------*/
static UCHAR ucMBAddress;
static eMBMode eMBCurrentMode;
static enum
{
STATE_ENABLED,
STATE_DISABLED,
STATE_NOT_INITIALIZED
} eMBState = STATE_NOT_INITIALIZED;
/* Functions pointer which are initialized in eMBInit( ). Depending on the
* mode (RTU or ASCII) the are set to the correct implementations.
* Using for Modbus Slave
*/
static peMBFrameSend peMBFrameSendCur;
static pvMBFrameStart pvMBFrameStartCur;
static pvMBFrameStop pvMBFrameStopCur;
static peMBFrameReceive peMBFrameReceiveCur;
static pvMBFrameClose pvMBFrameCloseCur;
/* Callback functions required by the porting layer. They are called when
* an external event has happend which includes a timeout or the reception
* or transmission of a character.
* Using for Modbus Slave
*/
BOOL( *pxMBFrameCBByteReceived ) ( void );
BOOL( *pxMBFrameCBTransmitterEmpty ) ( void );
BOOL( *pxMBPortCBTimerExpired ) ( void );
BOOL( *pxMBFrameCBReceiveFSMCur ) ( void );
BOOL( *pxMBFrameCBTransmitFSMCur ) ( void );
/* An array of Modbus functions handlers which associates Modbus function
* codes with implementing functions.
*/
static xMBFunctionHandler xFuncHandlers[MB_FUNC_HANDLERS_MAX] = {
#if MB_FUNC_OTHER_REP_SLAVEID_ENABLED > 0
{MB_FUNC_OTHER_REPORT_SLAVEID, eMBFuncReportSlaveID},
#endif
#if MB_FUNC_READ_INPUT_ENABLED > 0
{MB_FUNC_READ_INPUT_REGISTER, eMBFuncReadInputRegister},
#endif
#if MB_FUNC_READ_HOLDING_ENABLED > 0
{MB_FUNC_READ_HOLDING_REGISTER, eMBFuncReadHoldingRegister},
#endif
#if MB_FUNC_WRITE_MULTIPLE_HOLDING_ENABLED > 0
{MB_FUNC_WRITE_MULTIPLE_REGISTERS, eMBFuncWriteMultipleHoldingRegister},
#endif
#if MB_FUNC_WRITE_HOLDING_ENABLED > 0
{MB_FUNC_WRITE_REGISTER, eMBFuncWriteHoldingRegister},
#endif
#if MB_FUNC_READWRITE_HOLDING_ENABLED > 0
{MB_FUNC_READWRITE_MULTIPLE_REGISTERS, eMBFuncReadWriteMultipleHoldingRegister},
#endif
#if MB_FUNC_READ_COILS_ENABLED > 0
{MB_FUNC_READ_COILS, eMBFuncReadCoils},
#endif
#if MB_FUNC_WRITE_COIL_ENABLED > 0
{MB_FUNC_WRITE_SINGLE_COIL, eMBFuncWriteCoil},
#endif
#if MB_FUNC_WRITE_MULTIPLE_COILS_ENABLED > 0
{MB_FUNC_WRITE_MULTIPLE_COILS, eMBFuncWriteMultipleCoils},
#endif
#if MB_FUNC_READ_DISCRETE_INPUTS_ENABLED > 0
{MB_FUNC_READ_DISCRETE_INPUTS, eMBFuncReadDiscreteInputs},
#endif
};
/* ----------------------- Start implementation -----------------------------*/
eMBErrorCode
eMBInit( eMBMode eMode, UCHAR ucSlaveAddress, UCHAR ucPort, ULONG ulBaudRate, eMBParity eParity )
{
eMBErrorCode eStatus = MB_ENOERR;
/* check preconditions */
if( ( ucSlaveAddress == MB_ADDRESS_BROADCAST ) ||
( ucSlaveAddress < MB_ADDRESS_MIN ) || ( ucSlaveAddress > MB_ADDRESS_MAX ) )
{
eStatus = MB_EINVAL;
}
else
{
ucMBAddress = ucSlaveAddress;
switch ( eMode )
{
#if MB_SLAVE_RTU_ENABLED > 0
case MB_RTU:
pvMBFrameStartCur = eMBRTUStart;
pvMBFrameStopCur = eMBRTUStop;
peMBFrameSendCur = eMBRTUSend;
peMBFrameReceiveCur = eMBRTUReceive;
pvMBFrameCloseCur = MB_PORT_HAS_CLOSE ? vMBPortClose : NULL;
pxMBFrameCBByteReceived = xMBRTUReceiveFSM;
pxMBFrameCBTransmitterEmpty = xMBRTUTransmitFSM;
pxMBPortCBTimerExpired = xMBRTUTimerT35Expired;
eStatus = eMBRTUInit( ucMBAddress, ucPort, ulBaudRate, eParity );
break;
#endif
#if MB_SLAVE_ASCII_ENABLED > 0
case MB_ASCII:
pvMBFrameStartCur = eMBASCIIStart;
pvMBFrameStopCur = eMBASCIIStop;
peMBFrameSendCur = eMBASCIISend;
peMBFrameReceiveCur = eMBASCIIReceive;
pvMBFrameCloseCur = MB_PORT_HAS_CLOSE ? vMBPortClose : NULL;
pxMBFrameCBByteReceived = xMBASCIIReceiveFSM;
pxMBFrameCBTransmitterEmpty = xMBASCIITransmitFSM;
pxMBPortCBTimerExpired = xMBASCIITimerT1SExpired;
eStatus = eMBASCIIInit( ucMBAddress, ucPort, ulBaudRate, eParity );
break;
#endif
default:
eStatus = MB_EINVAL;
break;
}
if( eStatus == MB_ENOERR )
{
if( !xMBPortEventInit( ) )
{
/* port dependent event module initalization failed. */
eStatus = MB_EPORTERR;
}
else
{
eMBCurrentMode = eMode;
eMBState = STATE_DISABLED;
}
}
}
return eStatus;
}
#if MB_SLAVE_TCP_ENABLED > 0
eMBErrorCode
eMBTCPInit( USHORT ucTCPPort )
{
eMBErrorCode eStatus = MB_ENOERR;
if( ( eStatus = eMBTCPDoInit( ucTCPPort ) ) != MB_ENOERR )
{
eMBState = STATE_DISABLED;
}
else if( !xMBPortEventInit( ) )
{
/* Port dependent event module initalization failed. */
eStatus = MB_EPORTERR;
}
else
{
pvMBFrameStartCur = eMBTCPStart;
pvMBFrameStopCur = eMBTCPStop;
peMBFrameReceiveCur = eMBTCPReceive;
peMBFrameSendCur = eMBTCPSend;
pvMBFrameCloseCur = MB_PORT_HAS_CLOSE ? vMBTCPPortClose : NULL;
ucMBAddress = MB_TCP_PSEUDO_ADDRESS;
eMBCurrentMode = MB_TCP;
eMBState = STATE_DISABLED;
}
return eStatus;
}
#endif
eMBErrorCode
eMBRegisterCB( UCHAR ucFunctionCode, pxMBFunctionHandler pxHandler )
{
int i;
eMBErrorCode eStatus;
if( ( 0 < ucFunctionCode ) && ( ucFunctionCode <= 127 ) )
{
ENTER_CRITICAL_SECTION( );
if( pxHandler != NULL )
{
for( i = 0; i < MB_FUNC_HANDLERS_MAX; i++ )
{
if( ( xFuncHandlers[i].pxHandler == NULL ) ||
( xFuncHandlers[i].pxHandler == pxHandler ) )
{
xFuncHandlers[i].ucFunctionCode = ucFunctionCode;
xFuncHandlers[i].pxHandler = pxHandler;
break;
}
}
eStatus = ( i != MB_FUNC_HANDLERS_MAX ) ? MB_ENOERR : MB_ENORES;
}
else
{
for( i = 0; i < MB_FUNC_HANDLERS_MAX; i++ )
{
if( xFuncHandlers[i].ucFunctionCode == ucFunctionCode )
{
xFuncHandlers[i].ucFunctionCode = 0;
xFuncHandlers[i].pxHandler = NULL;
break;
}
}
/* Remove can't fail. */
eStatus = MB_ENOERR;
}
EXIT_CRITICAL_SECTION( );
}
else
{
eStatus = MB_EINVAL;
}
return eStatus;
}
eMBErrorCode
eMBClose( void )
{
eMBErrorCode eStatus = MB_ENOERR;
if( eMBState == STATE_DISABLED )
{
if( pvMBFrameCloseCur != NULL )
{
pvMBFrameCloseCur( );
}
}
else
{
eStatus = MB_EILLSTATE;
}
return eStatus;
}
eMBErrorCode
eMBEnable( void )
{
eMBErrorCode eStatus = MB_ENOERR;
if( eMBState == STATE_DISABLED )
{
/* Activate the protocol stack. */
pvMBFrameStartCur( );
eMBState = STATE_ENABLED;
}
else
{
eStatus = MB_EILLSTATE;
}
return eStatus;
}
eMBErrorCode
eMBDisable( void )
{
eMBErrorCode eStatus;
if( eMBState == STATE_ENABLED )
{
pvMBFrameStopCur( );
eMBState = STATE_DISABLED;
eStatus = MB_ENOERR;
}
else if( eMBState == STATE_DISABLED )
{
eStatus = MB_ENOERR;
}
else
{
eStatus = MB_EILLSTATE;
}
return eStatus;
}
eMBErrorCode eMBPoll( void )
{
static UCHAR *ucMBFrame;
static UCHAR ucRcvAddress;
static UCHAR ucFunctionCode;
static USHORT usLength;
static eMBException eException;
int i;
eMBErrorCode eStatus = MB_ENOERR;
eMBEventType eEvent;
/* Check if the protocol stack is ready. */
if( eMBState != STATE_ENABLED )
{
return MB_EILLSTATE;
}
/* Check if there is a event available. If not return control to caller.
* Otherwise we will handle the event. */
if( xMBPortEventGet( &eEvent ) == TRUE )
{
switch ( eEvent )
{
case EV_READY:
break;
case EV_FRAME_RECEIVED:
eStatus = peMBFrameReceiveCur( &ucRcvAddress, &ucMBFrame, &usLength );
if( eStatus == MB_ENOERR )
{
/* Check if the frame is for us. If not ignore the frame. */
if( ( ucRcvAddress == ucMBAddress ) || ( ucRcvAddress == MB_ADDRESS_BROADCAST ) )
{
( void )xMBPortEventPost( EV_EXECUTE );
}
}
break;
case EV_EXECUTE:
ucFunctionCode = ucMBFrame[MB_PDU_FUNC_OFF];
eException = MB_EX_ILLEGAL_FUNCTION;
for( i = 0; i < MB_FUNC_HANDLERS_MAX; i++ )
{
/* No more function handlers registered. Abort. */
if( xFuncHandlers[i].ucFunctionCode == 0 )
{
break;
}
else if( xFuncHandlers[i].ucFunctionCode == ucFunctionCode )
{
eException = xFuncHandlers[i].pxHandler( ucMBFrame, &usLength );
break;
}
}
/* If the request was not sent to the broadcast address we
* return a reply. */
if( ucRcvAddress != MB_ADDRESS_BROADCAST )
{
if( eException != MB_EX_NONE )
{
/* An exception occured. Build an error frame. */
usLength = 0;
ucMBFrame[usLength++] = ( UCHAR )( ucFunctionCode | MB_FUNC_ERROR );
ucMBFrame[usLength++] = eException;
}
eStatus = peMBFrameSendCur( ucMBAddress, ucMBFrame, usLength );
}
break;
case EV_FRAME_SENT:
break;
}
}
return MB_ENOERR;
}

375
HardWare/FreeModbus/modbus/mb_m.c Normal file
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/*
* FreeModbus Libary: A portable Modbus implementation for Modbus ASCII/RTU.
* Copyright (C) 2013 Armink <armink.ztl@gmail.com>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* File: $Id: mbrtu_m.c,v 1.60 2013/08/20 11:18:10 Armink Add Master Functions $
*/
/* ----------------------- System includes ----------------------------------*/
#include "stdlib.h"
#include "string.h"
/* ----------------------- Platform includes --------------------------------*/
#include "port.h"
/* ----------------------- Modbus includes ----------------------------------*/
#include "mb.h"
#include "mb_m.h"
#include "mbconfig.h"
#include "mbframe.h"
#include "mbfunc.h"
#include "mbproto.h"
#include "mbport.h"
#if MB_MASTER_RTU_ENABLED == 1
#include "mbrtu.h"
#endif
#if MB_MASTER_ASCII_ENABLED == 1
#include "mbascii.h"
#endif
#if MB_MASTER_TCP_ENABLED == 1
#include "mbtcp.h"
#endif
#if MB_MASTER_RTU_ENABLED > 0 || MB_MASTER_ASCII_ENABLED > 0
#ifndef MB_PORT_HAS_CLOSE
#define MB_PORT_HAS_CLOSE 0
#endif
/* ----------------------- Static variables ---------------------------------*/
static UCHAR ucMBMasterDestAddress;
static BOOL xMBRunInMasterMode = FALSE;
static eMBMasterErrorEventType eMBMasterCurErrorType;
static enum {
STATE_ENABLED,
STATE_DISABLED,
STATE_NOT_INITIALIZED,
STATE_ESTABLISHED,
} eMBState = STATE_NOT_INITIALIZED;
/* Functions pointer which are initialized in eMBInit( ). Depending on the
* mode (RTU or ASCII) the are set to the correct implementations.
* Using for Modbus Master,Add by Armink 20130813
*/
static peMBFrameSend peMBMasterFrameSendCur;
static pvMBFrameStart pvMBMasterFrameStartCur;
static pvMBFrameStop pvMBMasterFrameStopCur;
static peMBFrameReceive peMBMasterFrameReceiveCur;
static pvMBFrameClose pvMBMasterFrameCloseCur;
/* Callback functions required by the porting layer. They are called when
* an external event has happend which includes a timeout or the reception
* or transmission of a character.
* Using for Modbus Master,Add by Armink 20130813
*/
BOOL (*pxMBMasterFrameCBByteReceived)(void);
BOOL (*pxMBMasterFrameCBTransmitterEmpty)(void);
BOOL (*pxMBMasterPortCBTimerExpired)(void);
BOOL (*pxMBMasterFrameCBReceiveFSMCur)(void);
BOOL (*pxMBMasterFrameCBTransmitFSMCur)(void);
/* An array of Modbus functions handlers which associates Modbus function
* codes with implementing functions.
*/
static xMBFunctionHandler xMasterFuncHandlers[MB_FUNC_HANDLERS_MAX] = {
#if MB_FUNC_OTHER_REP_SLAVEID_ENABLED > 0
// TODO Add Master function define
{MB_FUNC_OTHER_REPORT_SLAVEID, eMBFuncReportSlaveID},
#endif
#if MB_FUNC_READ_INPUT_ENABLED > 0
{MB_FUNC_READ_INPUT_REGISTER, eMBMasterFuncReadInputRegister},
#endif
#if MB_FUNC_READ_HOLDING_ENABLED > 0
{MB_FUNC_READ_HOLDING_REGISTER, eMBMasterFuncReadHoldingRegister},
#endif
#if MB_FUNC_WRITE_MULTIPLE_HOLDING_ENABLED > 0
{MB_FUNC_WRITE_MULTIPLE_REGISTERS,
eMBMasterFuncWriteMultipleHoldingRegister},
#endif
#if MB_FUNC_WRITE_HOLDING_ENABLED > 0
{MB_FUNC_WRITE_REGISTER, eMBMasterFuncWriteHoldingRegister},
#endif
#if MB_FUNC_READWRITE_HOLDING_ENABLED > 0
{MB_FUNC_READWRITE_MULTIPLE_REGISTERS,
eMBMasterFuncReadWriteMultipleHoldingRegister},
#endif
#if MB_FUNC_READ_COILS_ENABLED > 0
{MB_FUNC_READ_COILS, eMBMasterFuncReadCoils},
#endif
#if MB_FUNC_WRITE_COIL_ENABLED > 0
{MB_FUNC_WRITE_SINGLE_COIL, eMBMasterFuncWriteCoil},
#endif
#if MB_FUNC_WRITE_MULTIPLE_COILS_ENABLED > 0
{MB_FUNC_WRITE_MULTIPLE_COILS, eMBMasterFuncWriteMultipleCoils},
#endif
#if MB_FUNC_READ_DISCRETE_INPUTS_ENABLED > 0
{MB_FUNC_READ_DISCRETE_INPUTS, eMBMasterFuncReadDiscreteInputs},
#endif
};
/* ----------------------- Start implementation -----------------------------*/
eMBErrorCode eMBMasterInit(eMBMode eMode, UCHAR ucPort, ULONG ulBaudRate,
eMBParity eParity) {
eMBErrorCode eStatus = MB_ENOERR;
switch (eMode) {
#if MB_MASTER_RTU_ENABLED > 0
case MB_RTU:
pvMBMasterFrameStartCur = eMBMasterRTUStart;
pvMBMasterFrameStopCur = eMBMasterRTUStop;
peMBMasterFrameSendCur = eMBMasterRTUSend;
peMBMasterFrameReceiveCur = eMBMasterRTUReceive;
pvMBMasterFrameCloseCur = MB_PORT_HAS_CLOSE ? vMBMasterPortClose : NULL;
pxMBMasterFrameCBByteReceived = xMBMasterRTUReceiveFSM;
pxMBMasterFrameCBTransmitterEmpty = xMBMasterRTUTransmitFSM;
pxMBMasterPortCBTimerExpired = xMBMasterRTUTimerExpired;
eStatus = eMBMasterRTUInit(ucPort, ulBaudRate, eParity);
break;
#endif
#if MB_MASTER_ASCII_ENABLED > 0
case MB_ASCII:
pvMBMasterFrameStartCur = eMBMasterASCIIStart;
pvMBMasterFrameStopCur = eMBMasterASCIIStop;
peMBMasterFrameSendCur = eMBMasterASCIISend;
peMBMasterFrameReceiveCur = eMBMasterASCIIReceive;
pvMBMasterFrameCloseCur = MB_PORT_HAS_CLOSE ? vMBMasterPortClose : NULL;
pxMBMasterFrameCBByteReceived = xMBMasterASCIIReceiveFSM;
pxMBMasterFrameCBTransmitterEmpty = xMBMasterASCIITransmitFSM;
pxMBMasterPortCBTimerExpired = xMBMasterASCIITimerT1SExpired;
eStatus = eMBMasterASCIIInit(ucPort, ulBaudRate, eParity);
break;
#endif
default:
eStatus = MB_EINVAL;
break;
}
if (eStatus == MB_ENOERR) {
if (!xMBMasterPortEventInit()) {
/* port dependent event module initalization failed. */
eStatus = MB_EPORTERR;
} else {
eMBState = STATE_DISABLED;
}
/* initialize the OS resource for modbus master. */
vMBMasterOsResInit();
}
return eStatus;
}
eMBErrorCode eMBMasterClose(void) {
eMBErrorCode eStatus = MB_ENOERR;
if (eMBState == STATE_DISABLED) {
if (pvMBMasterFrameCloseCur != NULL) {
pvMBMasterFrameCloseCur();
}
} else {
eStatus = MB_EILLSTATE;
}
return eStatus;
}
eMBErrorCode eMBMasterEnable(void) {
eMBErrorCode eStatus = MB_ENOERR;
if (eMBState == STATE_DISABLED) {
/* Activate the protocol stack. */
pvMBMasterFrameStartCur();
eMBState = STATE_ENABLED;
} else {
eStatus = MB_EILLSTATE;
}
return eStatus;
}
eMBErrorCode eMBMasterDisable(void) {
eMBErrorCode eStatus;
if ((eMBState == STATE_ENABLED) || (eMBState == STATE_ESTABLISHED)) {
pvMBMasterFrameStopCur();
eMBState = STATE_DISABLED;
eStatus = MB_ENOERR;
} else if (eMBState == STATE_DISABLED) {
eStatus = MB_ENOERR;
} else {
eStatus = MB_EILLSTATE;
}
return eStatus;
}
BOOL eMBMasterIsEstablished(void) {
if (eMBState == STATE_ESTABLISHED) {
return TRUE;
} else {
return FALSE;
}
}
eMBErrorCode eMBMasterPoll(void) {
static UCHAR *ucMBFrame;
static UCHAR ucRcvAddress;
static UCHAR ucFunctionCode;
static USHORT usLength;
static eMBException eException;
int i, j;
eMBErrorCode eStatus = MB_ENOERR;
eMBMasterEventType eEvent;
eMBMasterErrorEventType errorType;
/* Check if the protocol stack is ready. */
if ((eMBState != STATE_ENABLED) && (eMBState != STATE_ESTABLISHED)) {
return MB_EILLSTATE;
}
/* Check if there is a event available. If not return control to caller.
* Otherwise we will handle the event. */
if (xMBMasterPortEventGet(&eEvent) == TRUE) {
switch (eEvent) {
case EV_MASTER_READY:
eMBState = STATE_ESTABLISHED;
vMBMasterRunResRelease();
break;
case EV_MASTER_FRAME_RECEIVED:
eStatus = peMBMasterFrameReceiveCur(&ucRcvAddress, &ucMBFrame, &usLength);
/* Check if the frame is for us. If not ,send an error process event. */
if ((eStatus == MB_ENOERR) &&
(ucRcvAddress == ucMBMasterGetDestAddress())) {
(void)xMBMasterPortEventPost(EV_MASTER_EXECUTE);
} else {
vMBMasterSetErrorType(EV_ERROR_RECEIVE_DATA);
(void)xMBMasterPortEventPost(EV_MASTER_ERROR_PROCESS);
}
break;
case EV_MASTER_EXECUTE:
ucFunctionCode = ucMBFrame[MB_PDU_FUNC_OFF];
eException = MB_EX_ILLEGAL_FUNCTION;
/* If receive frame has exception .The receive function code highest bit
* is 1.*/
if (ucFunctionCode >> 7) {
eException = (eMBException)ucMBFrame[MB_PDU_DATA_OFF];
} else {
for (i = 0; i < MB_FUNC_HANDLERS_MAX; i++) {
/* No more function handlers registered. Abort. */
if (xMasterFuncHandlers[i].ucFunctionCode == 0) {
break;
} else if (xMasterFuncHandlers[i].ucFunctionCode == ucFunctionCode) {
vMBMasterSetCBRunInMasterMode(TRUE);
/* If master request is broadcast,
* the master need execute function for all slave.
*/
if (xMBMasterRequestIsBroadcast()) {
usLength = usMBMasterGetPDUSndLength();
for (j = 1; j <= MB_MASTER_TOTAL_SLAVE_NUM; j++) {
vMBMasterSetDestAddress(j);
eException =
xMasterFuncHandlers[i].pxHandler(ucMBFrame, &usLength);
}
} else {
eException =
xMasterFuncHandlers[i].pxHandler(ucMBFrame, &usLength);
}
vMBMasterSetCBRunInMasterMode(FALSE);
break;
}
}
}
/* If master has exception ,Master will send error process.Otherwise the
* Master is idle.*/
if (eException != MB_EX_NONE) {
vMBMasterSetErrorType(EV_ERROR_EXECUTE_FUNCTION);
(void)xMBMasterPortEventPost(EV_MASTER_ERROR_PROCESS);
} else {
vMBMasterCBRequestScuuess();
vMBMasterRunResRelease();
}
break;
case EV_MASTER_FRAME_SENT:
/* Master is busy now. */
vMBMasterGetPDUSndBuf(&ucMBFrame);
eStatus = peMBMasterFrameSendCur(ucMBMasterGetDestAddress(), ucMBFrame,
usMBMasterGetPDUSndLength());
break;
case EV_MASTER_ERROR_PROCESS:
/* Execute specified error process callback function. */
errorType = eMBMasterGetErrorType();
vMBMasterGetPDUSndBuf(&ucMBFrame);
switch (errorType) {
case EV_ERROR_RESPOND_TIMEOUT:
vMBMasterErrorCBRespondTimeout(ucMBMasterGetDestAddress(), ucMBFrame,
usMBMasterGetPDUSndLength());
break;
case EV_ERROR_RECEIVE_DATA:
vMBMasterErrorCBReceiveData(ucMBMasterGetDestAddress(), ucMBFrame,
usMBMasterGetPDUSndLength());
break;
case EV_ERROR_EXECUTE_FUNCTION:
vMBMasterErrorCBExecuteFunction(ucMBMasterGetDestAddress(), ucMBFrame,
usMBMasterGetPDUSndLength());
break;
}
vMBMasterRunResRelease();
break;
default:
break;
}
}
return MB_ENOERR;
}
/* Get whether the Modbus Master is run in master mode.*/
BOOL xMBMasterGetCBRunInMasterMode(void) { return xMBRunInMasterMode; }
/* Set whether the Modbus Master is run in master mode.*/
void vMBMasterSetCBRunInMasterMode(BOOL IsMasterMode) {
xMBRunInMasterMode = IsMasterMode;
}
/* Get Modbus Master send destination address. */
UCHAR ucMBMasterGetDestAddress(void) { return ucMBMasterDestAddress; }
/* Set Modbus Master send destination address. */
void vMBMasterSetDestAddress(UCHAR Address) { ucMBMasterDestAddress = Address; }
/* Get Modbus Master current error event type. */
eMBMasterErrorEventType eMBMasterGetErrorType(void) {
return eMBMasterCurErrorType;
}
/* Set Modbus Master current error event type. */
void vMBMasterSetErrorType(eMBMasterErrorEventType errorType) {
eMBMasterCurErrorType = errorType;
}
#endif

98
HardWare/FreeModbus/modbus/rtu/mbcrc.c Normal file
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@ -0,0 +1,98 @@
/*
* FreeModbus Libary: A portable Modbus implementation for Modbus ASCII/RTU.
* Copyright (c) 2006-2018 Christian Walter <cwalter@embedded-solutions.at>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* File: $Id: mbcrc.c,v 1.7 2007/02/18 23:50:27 wolti Exp $
*/
/* ----------------------- Platform includes --------------------------------*/
#include "port.h"
static const UCHAR aucCRCHi[] = {
0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41, 0x01, 0xC0, 0x80, 0x41,
0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41, 0x00, 0xC1, 0x81, 0x40,
0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41, 0x01, 0xC0, 0x80, 0x41,
0x00, 0xC1, 0x81, 0x40, 0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41,
0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41, 0x01, 0xC0, 0x80, 0x41,
0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41, 0x00, 0xC1, 0x81, 0x40,
0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41, 0x00, 0xC1, 0x81, 0x40,
0x01, 0xC0, 0x80, 0x41, 0x01, 0xC0, 0x80, 0x41, 0x00, 0xC1, 0x81, 0x40,
0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41, 0x01, 0xC0, 0x80, 0x41,
0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41, 0x00, 0xC1, 0x81, 0x40,
0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41, 0x01, 0xC0, 0x80, 0x41,
0x00, 0xC1, 0x81, 0x40, 0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41,
0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41, 0x01, 0xC0, 0x80, 0x41,
0x00, 0xC1, 0x81, 0x40, 0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41,
0x01, 0xC0, 0x80, 0x41, 0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41,
0x00, 0xC1, 0x81, 0x40, 0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41,
0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41, 0x01, 0xC0, 0x80, 0x41,
0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41, 0x00, 0xC1, 0x81, 0x40,
0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41, 0x01, 0xC0, 0x80, 0x41,
0x00, 0xC1, 0x81, 0x40, 0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41,
0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41, 0x01, 0xC0, 0x80, 0x41,
0x00, 0xC1, 0x81, 0x40
};
static const UCHAR aucCRCLo[] = {
0x00, 0xC0, 0xC1, 0x01, 0xC3, 0x03, 0x02, 0xC2, 0xC6, 0x06, 0x07, 0xC7,
0x05, 0xC5, 0xC4, 0x04, 0xCC, 0x0C, 0x0D, 0xCD, 0x0F, 0xCF, 0xCE, 0x0E,
0x0A, 0xCA, 0xCB, 0x0B, 0xC9, 0x09, 0x08, 0xC8, 0xD8, 0x18, 0x19, 0xD9,
0x1B, 0xDB, 0xDA, 0x1A, 0x1E, 0xDE, 0xDF, 0x1F, 0xDD, 0x1D, 0x1C, 0xDC,
0x14, 0xD4, 0xD5, 0x15, 0xD7, 0x17, 0x16, 0xD6, 0xD2, 0x12, 0x13, 0xD3,
0x11, 0xD1, 0xD0, 0x10, 0xF0, 0x30, 0x31, 0xF1, 0x33, 0xF3, 0xF2, 0x32,
0x36, 0xF6, 0xF7, 0x37, 0xF5, 0x35, 0x34, 0xF4, 0x3C, 0xFC, 0xFD, 0x3D,
0xFF, 0x3F, 0x3E, 0xFE, 0xFA, 0x3A, 0x3B, 0xFB, 0x39, 0xF9, 0xF8, 0x38,
0x28, 0xE8, 0xE9, 0x29, 0xEB, 0x2B, 0x2A, 0xEA, 0xEE, 0x2E, 0x2F, 0xEF,
0x2D, 0xED, 0xEC, 0x2C, 0xE4, 0x24, 0x25, 0xE5, 0x27, 0xE7, 0xE6, 0x26,
0x22, 0xE2, 0xE3, 0x23, 0xE1, 0x21, 0x20, 0xE0, 0xA0, 0x60, 0x61, 0xA1,
0x63, 0xA3, 0xA2, 0x62, 0x66, 0xA6, 0xA7, 0x67, 0xA5, 0x65, 0x64, 0xA4,
0x6C, 0xAC, 0xAD, 0x6D, 0xAF, 0x6F, 0x6E, 0xAE, 0xAA, 0x6A, 0x6B, 0xAB,
0x69, 0xA9, 0xA8, 0x68, 0x78, 0xB8, 0xB9, 0x79, 0xBB, 0x7B, 0x7A, 0xBA,
0xBE, 0x7E, 0x7F, 0xBF, 0x7D, 0xBD, 0xBC, 0x7C, 0xB4, 0x74, 0x75, 0xB5,
0x77, 0xB7, 0xB6, 0x76, 0x72, 0xB2, 0xB3, 0x73, 0xB1, 0x71, 0x70, 0xB0,
0x50, 0x90, 0x91, 0x51, 0x93, 0x53, 0x52, 0x92, 0x96, 0x56, 0x57, 0x97,
0x55, 0x95, 0x94, 0x54, 0x9C, 0x5C, 0x5D, 0x9D, 0x5F, 0x9F, 0x9E, 0x5E,
0x5A, 0x9A, 0x9B, 0x5B, 0x99, 0x59, 0x58, 0x98, 0x88, 0x48, 0x49, 0x89,
0x4B, 0x8B, 0x8A, 0x4A, 0x4E, 0x8E, 0x8F, 0x4F, 0x8D, 0x4D, 0x4C, 0x8C,
0x44, 0x84, 0x85, 0x45, 0x87, 0x47, 0x46, 0x86, 0x82, 0x42, 0x43, 0x83,
0x41, 0x81, 0x80, 0x40
};
USHORT
usMBCRC16( UCHAR * pucFrame, USHORT usLen )
{
UCHAR ucCRCHi = 0xFF;
UCHAR ucCRCLo = 0xFF;
int iIndex;
while( usLen-- )
{
iIndex = ucCRCLo ^ *( pucFrame++ );
ucCRCLo = ( UCHAR )( ucCRCHi ^ aucCRCHi[iIndex] );
ucCRCHi = aucCRCLo[iIndex];
}
return ( USHORT )( ucCRCHi << 8 | ucCRCLo );
}

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/*
* FreeModbus Libary: A portable Modbus implementation for Modbus ASCII/RTU.
* Copyright (c) 2006-2018 Christian Walter <cwalter@embedded-solutions.at>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* File: $Id: mbcrc.h,v 1.5 2006/12/07 22:10:34 wolti Exp $
*/
#ifndef _MB_CRC_H
#define _MB_CRC_H
USHORT usMBCRC16( UCHAR * pucFrame, USHORT usLen );
#endif

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/*
* FreeModbus Libary: A portable Modbus implementation for Modbus ASCII/RTU.
* Copyright (c) 2006-2018 Christian Walter <cwalter@embedded-solutions.at>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* File: $Id: mbrtu.c,v 1.18 2007/09/12 10:15:56 wolti Exp $
*/
/* ----------------------- System includes ----------------------------------*/
#include "stdlib.h"
#include "string.h"
/* ----------------------- Platform includes --------------------------------*/
#include "port.h"
/* ----------------------- Modbus includes ----------------------------------*/
#include "mb.h"
#include "mbframe.h"
#include "mbrtu.h"
#include "mbcrc.h"
#include "mbport.h"
/* ----------------------- Defines ------------------------------------------*/
#define MB_SER_PDU_SIZE_MIN 4 /*!< Minimum size of a Modbus RTU frame. */
#define MB_SER_PDU_SIZE_MAX 256 /*!< Maximum size of a Modbus RTU frame. */
#define MB_SER_PDU_SIZE_CRC 2 /*!< Size of CRC field in PDU. */
#define MB_SER_PDU_ADDR_OFF 0 /*!< Offset of slave address in Ser-PDU. */
#define MB_SER_PDU_PDU_OFF 1 /*!< Offset of Modbus-PDU in Ser-PDU. */
/* ----------------------- Type definitions ---------------------------------*/
typedef enum {
STATE_RX_INIT, /*!< Receiver is in initial state. */
STATE_RX_IDLE, /*!< Receiver is in idle state. */
STATE_RX_RCV, /*!< Frame is beeing received. */
STATE_RX_ERROR /*!< If the frame is invalid. */
} eMBRcvState;
typedef enum {
STATE_TX_IDLE, /*!< Transmitter is in idle state. */
STATE_TX_XMIT /*!< Transmitter is in transfer state. */
} eMBSndState;
/* ----------------------- Static variables ---------------------------------*/
static volatile eMBSndState eSndState;
static volatile eMBRcvState eRcvState;
volatile UCHAR ucRTUBuf[MB_SER_PDU_SIZE_MAX];
static volatile UCHAR *pucSndBufferCur;
static volatile USHORT usSndBufferCount;
static volatile USHORT usRcvBufferPos;
/* ----------------------- Start implementation -----------------------------*/
eMBErrorCode eMBRTUInit(UCHAR ucSlaveAddress, UCHAR ucPort, ULONG ulBaudRate,
eMBParity eParity) {
eMBErrorCode eStatus = MB_ENOERR;
ULONG usTimerT35_50us;
(void)ucSlaveAddress;
ENTER_CRITICAL_SECTION();
/* Modbus RTU uses 8 Databits. */
if (xMBPortSerialInit(ucPort, ulBaudRate, 8, eParity) != TRUE) {
eStatus = MB_EPORTERR;
} else {
/* If baudrate > 19200 then we should use the fixed timer values
* t35 = 1750us. Otherwise t35 must be 3.5 times the character time.
*/
if (ulBaudRate > 19200) {
usTimerT35_50us = 35; /* 1800us. */
} else {
/* The timer reload value for a character is given by:
*
* ChTimeValue = Ticks_per_1s / ( Baudrate / 11 )
* = 11 * Ticks_per_1s / Baudrate
* = 220000 / Baudrate
* The reload for t3.5 is 1.5 times this value and similary
* for t3.5.
*/
usTimerT35_50us = (7UL * 220000UL) / (2UL * ulBaudRate);
}
if (xMBPortTimersInit((USHORT)usTimerT35_50us) != TRUE) {
eStatus = MB_EPORTERR;
}
}
EXIT_CRITICAL_SECTION();
return eStatus;
}
void eMBRTUStart(void) {
ENTER_CRITICAL_SECTION();
/* Initially the receiver is in the state STATE_RX_INIT. we start
* the timer and if no character is received within t3.5 we change
* to STATE_RX_IDLE. This makes sure that we delay startup of the
* modbus protocol stack until the bus is free.
*/
eRcvState = STATE_RX_INIT;
vMBPortSerialEnable(TRUE, FALSE);
vMBPortTimersEnable();
EXIT_CRITICAL_SECTION();
}
void eMBRTUStop(void) {
ENTER_CRITICAL_SECTION();
vMBPortSerialEnable(FALSE, FALSE);
vMBPortTimersDisable();
EXIT_CRITICAL_SECTION();
}
eMBErrorCode eMBRTUReceive(UCHAR *pucRcvAddress, UCHAR **pucFrame,
USHORT *pusLength) {
eMBErrorCode eStatus = MB_ENOERR;
ENTER_CRITICAL_SECTION();
assert_param(usRcvBufferPos < MB_SER_PDU_SIZE_MAX);
/* Length and CRC check */
if ((usRcvBufferPos >= MB_SER_PDU_SIZE_MIN) &&
(usMBCRC16((UCHAR *)ucRTUBuf, usRcvBufferPos) == 0)) {
/* Save the address field. All frames are passed to the upper layed
* and the decision if a frame is used is done there.
*/
*pucRcvAddress = ucRTUBuf[MB_SER_PDU_ADDR_OFF];
/* Total length of Modbus-PDU is Modbus-Serial-Line-PDU minus
* size of address field and CRC checksum.
*/
*pusLength =
(USHORT)(usRcvBufferPos - MB_SER_PDU_PDU_OFF - MB_SER_PDU_SIZE_CRC);
/* Return the start of the Modbus PDU to the caller. */
*pucFrame = (UCHAR *)&ucRTUBuf[MB_SER_PDU_PDU_OFF];
} else {
eStatus = MB_EIO;
}
EXIT_CRITICAL_SECTION();
return eStatus;
}
eMBErrorCode eMBRTUSend(UCHAR ucSlaveAddress, const UCHAR *pucFrame,
USHORT usLength) {
eMBErrorCode eStatus = MB_ENOERR;
USHORT usCRC16;
ENTER_CRITICAL_SECTION();
/* Check if the receiver is still in idle state. If not we where to
* slow with processing the received frame and the master sent another
* frame on the network. We have to abort sending the frame.
*/
if (eRcvState == STATE_RX_IDLE) {
/* First byte before the Modbus-PDU is the slave address. */
pucSndBufferCur = (UCHAR *)pucFrame - 1;
usSndBufferCount = 1;
/* Now copy the Modbus-PDU into the Modbus-Serial-Line-PDU. */
pucSndBufferCur[MB_SER_PDU_ADDR_OFF] = ucSlaveAddress;
usSndBufferCount += usLength;
/* Calculate CRC16 checksum for Modbus-Serial-Line-PDU. */
usCRC16 = usMBCRC16((UCHAR *)pucSndBufferCur, usSndBufferCount);
ucRTUBuf[usSndBufferCount++] = (UCHAR)(usCRC16 & 0xFF);
ucRTUBuf[usSndBufferCount++] = (UCHAR)(usCRC16 >> 8);
/* Activate the transmitter. */
eSndState = STATE_TX_XMIT;
vMBPortSerialEnable(FALSE, TRUE);
} else {
eStatus = MB_EIO;
}
EXIT_CRITICAL_SECTION();
return eStatus;
}
BOOL xMBRTUReceiveFSM(void) {
BOOL xTaskNeedSwitch = FALSE;
UCHAR ucByte;
assert_param(eSndState == STATE_TX_IDLE);
/* Always read the character. */
(void)xMBPortSerialGetByte((CHAR *)&ucByte);
switch (eRcvState) {
/* If we have received a character in the init state we have to
* wait until the frame is finished.
*/
case STATE_RX_INIT:
vMBPortTimersEnable();
break;
/* In the error state we wait until all characters in the
* damaged frame are transmitted.
*/
case STATE_RX_ERROR:
vMBPortTimersEnable();
break;
/* In the idle state we wait for a new character. If a character
* is received the t1.5 and t3.5 timers are started and the
* receiver is in the state STATE_RX_RECEIVCE.
*/
case STATE_RX_IDLE:
usRcvBufferPos = 0;
ucRTUBuf[usRcvBufferPos++] = ucByte;
eRcvState = STATE_RX_RCV;
/* Enable t3.5 timers. */
vMBPortTimersEnable();
break;
/* We are currently receiving a frame. Reset the timer after
* every character received. If more than the maximum possible
* number of bytes in a modbus frame is received the frame is
* ignored.
*/
case STATE_RX_RCV:
if (usRcvBufferPos < MB_SER_PDU_SIZE_MAX) {
ucRTUBuf[usRcvBufferPos++] = ucByte;
} else {
eRcvState = STATE_RX_ERROR;
}
vMBPortTimersEnable();
break;
}
return xTaskNeedSwitch;
}
BOOL xMBRTUTransmitFSM(void) {
BOOL xNeedPoll = FALSE;
assert_param(eRcvState == STATE_RX_IDLE);
switch (eSndState) {
/* We should not get a transmitter event if the transmitter is in
* idle state. */
case STATE_TX_IDLE:
/* enable receiver/disable transmitter. */
vMBPortSerialEnable(TRUE, FALSE);
break;
case STATE_TX_XMIT:
/* check if we are finished. */
if (usSndBufferCount != 0) {
xMBPortSerialPutByte((CHAR)*pucSndBufferCur);
pucSndBufferCur++; /* next byte in sendbuffer. */
usSndBufferCount--;
} else {
xNeedPoll = xMBPortEventPost(EV_FRAME_SENT);
/* Disable transmitter. This prevents another transmit buffer
* empty interrupt. */
vMBPortSerialEnable(TRUE, FALSE);
eSndState = STATE_TX_IDLE;
}
break;
}
return xNeedPoll;
}
BOOL xMBRTUTimerT35Expired(void) {
BOOL xNeedPoll = FALSE;
switch (eRcvState) {
/* Timer t35 expired. Startup phase is finished. */
case STATE_RX_INIT:
xNeedPoll = xMBPortEventPost(EV_READY);
break;
/* A frame was received and t35 expired. Notify the listener that
* a new frame was received. */
case STATE_RX_RCV:
xNeedPoll = xMBPortEventPost(EV_FRAME_RECEIVED);
break;
/* An error occured while receiving the frame. */
case STATE_RX_ERROR:
break;
/* Function called in an illegal state. */
default:
assert_param((eRcvState == STATE_RX_INIT) || (eRcvState == STATE_RX_RCV) ||
(eRcvState == STATE_RX_ERROR));
break;
}
vMBPortTimersDisable();
eRcvState = STATE_RX_IDLE;
return xNeedPoll;
}

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/*
* FreeModbus Libary: A portable Modbus implementation for Modbus ASCII/RTU.
* Copyright (c) 2006-2018 Christian Walter <cwalter@embedded-solutions.at>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* File: $Id: mbrtu.h,v 1.9 2006/12/07 22:10:34 wolti Exp $
* File: $Id: mbrtu.h,v 1.60 2013/08/17 13:11:42 Armink Add Master Functions $
*/
#include "mbconfig.h"
#ifndef _MB_RTU_H
#define _MB_RTU_H
#ifdef __cplusplus
PR_BEGIN_EXTERN_C
#endif
eMBErrorCode eMBRTUInit( UCHAR slaveAddress, UCHAR ucPort, ULONG ulBaudRate,
eMBParity eParity );
void eMBRTUStart( void );
void eMBRTUStop( void );
eMBErrorCode eMBRTUReceive( UCHAR * pucRcvAddress, UCHAR ** pucFrame, USHORT * pusLength );
eMBErrorCode eMBRTUSend( UCHAR slaveAddress, const UCHAR * pucFrame, USHORT usLength );
BOOL xMBRTUReceiveFSM( void );
BOOL xMBRTUTransmitFSM( void );
BOOL xMBRTUTimerT15Expired( void );
BOOL xMBRTUTimerT35Expired( void );
#if MB_MASTER_RTU_ENABLED > 0
eMBErrorCode eMBMasterRTUInit( UCHAR ucPort, ULONG ulBaudRate,eMBParity eParity );
void eMBMasterRTUStart( void );
void eMBMasterRTUStop( void );
eMBErrorCode eMBMasterRTUReceive( UCHAR * pucRcvAddress, UCHAR ** pucFrame, USHORT * pusLength );
eMBErrorCode eMBMasterRTUSend( UCHAR slaveAddress, const UCHAR * pucFrame, USHORT usLength );
BOOL xMBMasterRTUReceiveFSM( void );
BOOL xMBMasterRTUTransmitFSM( void );
BOOL xMBMasterRTUTimerExpired( void );
#endif
#ifdef __cplusplus
PR_END_EXTERN_C
#endif
#endif

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/*
* FreeModbus Libary: A portable Modbus implementation for Modbus ASCII/RTU.
* Copyright (c) 2013 China Beijing Armink <armink.ztl@gmail.com>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* File: $Id: mbrtu_m.c,v 1.60 2013/08/17 11:42:56 Armink Add Master Functions $
*/
/* ----------------------- System includes ----------------------------------*/
#include "stdlib.h"
#include "string.h"
/* ----------------------- Platform includes --------------------------------*/
#include "port.h"
/* ----------------------- Modbus includes ----------------------------------*/
#include "mb.h"
#include "mb_m.h"
#include "mbrtu.h"
#include "mbframe.h"
#include "mbcrc.h"
#include "mbport.h"
#if MB_MASTER_RTU_ENABLED > 0
/* ----------------------- Defines ------------------------------------------*/
#define MB_SER_PDU_SIZE_MIN 4 /*!< Minimum size of a Modbus RTU frame. */
#define MB_SER_PDU_SIZE_MAX 256 /*!< Maximum size of a Modbus RTU frame. */
#define MB_SER_PDU_SIZE_CRC 2 /*!< Size of CRC field in PDU. */
#define MB_SER_PDU_ADDR_OFF 0 /*!< Offset of slave address in Ser-PDU. */
#define MB_SER_PDU_PDU_OFF 1 /*!< Offset of Modbus-PDU in Ser-PDU. */
/* ----------------------- Type definitions ---------------------------------*/
typedef enum
{
STATE_M_RX_INIT, /*!< Receiver is in initial state. */
STATE_M_RX_IDLE, /*!< Receiver is in idle state. */
STATE_M_RX_RCV, /*!< Frame is beeing received. */
STATE_M_RX_ERROR, /*!< If the frame is invalid. */
} eMBMasterRcvState;
typedef enum
{
STATE_M_TX_IDLE, /*!< Transmitter is in idle state. */
STATE_M_TX_XMIT, /*!< Transmitter is in transfer state. */
STATE_M_TX_XFWR, /*!< Transmitter is in transfer finish and wait receive state. */
} eMBMasterSndState;
/* ----------------------- Static variables ---------------------------------*/
static volatile eMBMasterSndState eSndState;
static volatile eMBMasterRcvState eRcvState;
static volatile UCHAR ucMasterRTUSndBuf[MB_PDU_SIZE_MAX];
static volatile UCHAR ucMasterRTURcvBuf[MB_SER_PDU_SIZE_MAX];
static volatile USHORT usMasterSendPDULength;
static volatile UCHAR *pucMasterSndBufferCur;
static volatile USHORT usMasterSndBufferCount;
static volatile USHORT usMasterRcvBufferPos;
static volatile BOOL xFrameIsBroadcast = FALSE;
static volatile eMBMasterTimerMode eMasterCurTimerMode;
/* ----------------------- Start implementation -----------------------------*/
eMBErrorCode
eMBMasterRTUInit(UCHAR ucPort, ULONG ulBaudRate, eMBParity eParity )
{
eMBErrorCode eStatus = MB_ENOERR;
ULONG usTimerT35_50us;
ENTER_CRITICAL_SECTION( );
/* Modbus RTU uses 8 Databits. */
if( xMBMasterPortSerialInit( ucPort, ulBaudRate, 8, eParity ) != TRUE )
{
eStatus = MB_EPORTERR;
}
else
{
/* If baudrate > 19200 then we should use the fixed timer values
* t35 = 1750us. Otherwise t35 must be 3.5 times the character time.
*/
if( ulBaudRate > 19200 )
{
usTimerT35_50us = 35; /* 1800us. */
}
else
{
/* The timer reload value for a character is given by:
*
* ChTimeValue = Ticks_per_1s / ( Baudrate / 11 )
* = 11 * Ticks_per_1s / Baudrate
* = 220000 / Baudrate
* The reload for t3.5 is 1.5 times this value and similary
* for t3.5.
*/
usTimerT35_50us = ( 7UL * 220000UL ) / ( 2UL * ulBaudRate );
}
if( xMBMasterPortTimersInit( ( USHORT ) usTimerT35_50us ) != TRUE )
{
eStatus = MB_EPORTERR;
}
}
EXIT_CRITICAL_SECTION( );
return eStatus;
}
void
eMBMasterRTUStart( void )
{
ENTER_CRITICAL_SECTION( );
/* Initially the receiver is in the state STATE_M_RX_INIT. we start
* the timer and if no character is received within t3.5 we change
* to STATE_M_RX_IDLE. This makes sure that we delay startup of the
* modbus protocol stack until the bus is free.
*/
eRcvState = STATE_M_RX_INIT;
vMBMasterPortSerialEnable( TRUE, FALSE );
vMBMasterPortTimersT35Enable( );
EXIT_CRITICAL_SECTION( );
}
void
eMBMasterRTUStop( void )
{
ENTER_CRITICAL_SECTION( );
vMBMasterPortSerialEnable( FALSE, FALSE );
vMBMasterPortTimersDisable( );
EXIT_CRITICAL_SECTION( );
}
eMBErrorCode
eMBMasterRTUReceive( UCHAR * pucRcvAddress, UCHAR ** pucFrame, USHORT * pusLength )
{
eMBErrorCode eStatus = MB_ENOERR;
ENTER_CRITICAL_SECTION( );
assert_param( usMasterRcvBufferPos < MB_SER_PDU_SIZE_MAX );
/* Length and CRC check */
if( ( usMasterRcvBufferPos >= MB_SER_PDU_SIZE_MIN )
&& ( usMBCRC16( ( UCHAR * ) ucMasterRTURcvBuf, usMasterRcvBufferPos ) == 0 ) )
{
/* Save the address field. All frames are passed to the upper layed
* and the decision if a frame is used is done there.
*/
*pucRcvAddress = ucMasterRTURcvBuf[MB_SER_PDU_ADDR_OFF];
/* Total length of Modbus-PDU is Modbus-Serial-Line-PDU minus
* size of address field and CRC checksum.
*/
*pusLength = ( USHORT )( usMasterRcvBufferPos - MB_SER_PDU_PDU_OFF - MB_SER_PDU_SIZE_CRC );
/* Return the start of the Modbus PDU to the caller. */
*pucFrame = ( UCHAR * ) & ucMasterRTURcvBuf[MB_SER_PDU_PDU_OFF];
}
else
{
eStatus = MB_EIO;
}
EXIT_CRITICAL_SECTION( );
return eStatus;
}
eMBErrorCode
eMBMasterRTUSend( UCHAR ucSlaveAddress, const UCHAR * pucFrame, USHORT usLength )
{
eMBErrorCode eStatus = MB_ENOERR;
USHORT usCRC16;
if ( ucSlaveAddress > MB_MASTER_TOTAL_SLAVE_NUM ) return MB_EINVAL;
ENTER_CRITICAL_SECTION( );
/* Check if the receiver is still in idle state. If not we where to
* slow with processing the received frame and the master sent another
* frame on the network. We have to abort sending the frame.
*/
if( eRcvState == STATE_M_RX_IDLE )
{
/* First byte before the Modbus-PDU is the slave address. */
pucMasterSndBufferCur = ( UCHAR * ) pucFrame - 1;
usMasterSndBufferCount = 1;
/* Now copy the Modbus-PDU into the Modbus-Serial-Line-PDU. */
pucMasterSndBufferCur[MB_SER_PDU_ADDR_OFF] = ucSlaveAddress;
usMasterSndBufferCount += usLength;
/* Calculate CRC16 checksum for Modbus-Serial-Line-PDU. */
usCRC16 = usMBCRC16( ( UCHAR * ) pucMasterSndBufferCur, usMasterSndBufferCount );
ucMasterRTUSndBuf[usMasterSndBufferCount++] = ( UCHAR )( usCRC16 & 0xFF );
ucMasterRTUSndBuf[usMasterSndBufferCount++] = ( UCHAR )( usCRC16 >> 8 );
/* Activate the transmitter. */
eSndState = STATE_M_TX_XMIT;
vMBMasterPortSerialEnable( FALSE, TRUE );
}
else
{
eStatus = MB_EIO;
}
EXIT_CRITICAL_SECTION( );
return eStatus;
}
BOOL
xMBMasterRTUReceiveFSM( void )
{
BOOL xTaskNeedSwitch = FALSE;
UCHAR ucByte;
assert_param(( eSndState == STATE_M_TX_IDLE ) || ( eSndState == STATE_M_TX_XFWR ));
/* Always read the character. */
( void )xMBMasterPortSerialGetByte( ( CHAR * ) & ucByte );
switch ( eRcvState )
{
/* If we have received a character in the init state we have to
* wait until the frame is finished.
*/
case STATE_M_RX_INIT:
vMBMasterPortTimersT35Enable( );
break;
/* In the error state we wait until all characters in the
* damaged frame are transmitted.
*/
case STATE_M_RX_ERROR:
vMBMasterPortTimersT35Enable( );
break;
/* In the idle state we wait for a new character. If a character
* is received the t1.5 and t3.5 timers are started and the
* receiver is in the state STATE_RX_RECEIVCE and disable early
* the timer of respond timeout .
*/
case STATE_M_RX_IDLE:
/* In time of respond timeout,the receiver receive a frame.
* Disable timer of respond timeout and change the transmiter state to idle.
*/
vMBMasterPortTimersDisable( );
eSndState = STATE_M_TX_IDLE;
usMasterRcvBufferPos = 0;
ucMasterRTURcvBuf[usMasterRcvBufferPos++] = ucByte;
eRcvState = STATE_M_RX_RCV;
/* Enable t3.5 timers. */
vMBMasterPortTimersT35Enable( );
break;
/* We are currently receiving a frame. Reset the timer after
* every character received. If more than the maximum possible
* number of bytes in a modbus frame is received the frame is
* ignored.
*/
case STATE_M_RX_RCV:
if( usMasterRcvBufferPos < MB_SER_PDU_SIZE_MAX )
{
ucMasterRTURcvBuf[usMasterRcvBufferPos++] = ucByte;
}
else
{
eRcvState = STATE_M_RX_ERROR;
}
vMBMasterPortTimersT35Enable();
break;
}
return xTaskNeedSwitch;
}
BOOL
xMBMasterRTUTransmitFSM( void )
{
BOOL xNeedPoll = FALSE;
assert_param( eRcvState == STATE_M_RX_IDLE );
switch ( eSndState )
{
/* We should not get a transmitter event if the transmitter is in
* idle state. */
case STATE_M_TX_IDLE:
/* enable receiver/disable transmitter. */
vMBMasterPortSerialEnable( TRUE, FALSE );
break;
case STATE_M_TX_XMIT:
/* check if we are finished. */
if( usMasterSndBufferCount != 0 )
{
xMBMasterPortSerialPutByte( ( CHAR )*pucMasterSndBufferCur );
pucMasterSndBufferCur++; /* next byte in sendbuffer. */
usMasterSndBufferCount--;
}
else
{
xFrameIsBroadcast = ( ucMasterRTUSndBuf[MB_SER_PDU_ADDR_OFF] == MB_ADDRESS_BROADCAST ) ? TRUE : FALSE;
/* Disable transmitter. This prevents another transmit buffer
* empty interrupt. */
vMBMasterPortSerialEnable( TRUE, FALSE );
eSndState = STATE_M_TX_XFWR;
/* If the frame is broadcast ,master will enable timer of convert delay,
* else master will enable timer of respond timeout. */
if ( xFrameIsBroadcast == TRUE )
{
vMBMasterPortTimersConvertDelayEnable( );
}
else
{
vMBMasterPortTimersRespondTimeoutEnable( );
}
}
break;
default:
break;
}
return xNeedPoll;
}
BOOL
xMBMasterRTUTimerExpired(void)
{
BOOL xNeedPoll = FALSE;
switch (eRcvState)
{
/* Timer t35 expired. Startup phase is finished. */
case STATE_M_RX_INIT:
xNeedPoll = xMBMasterPortEventPost(EV_MASTER_READY);
break;
/* A frame was received and t35 expired. Notify the listener that
* a new frame was received. */
case STATE_M_RX_RCV:
xNeedPoll = xMBMasterPortEventPost(EV_MASTER_FRAME_RECEIVED);
break;
/* An error occured while receiving the frame. */
case STATE_M_RX_ERROR:
vMBMasterSetErrorType(EV_ERROR_RECEIVE_DATA);
xNeedPoll = xMBMasterPortEventPost( EV_MASTER_ERROR_PROCESS );
break;
/* Function called in an illegal state. */
default:
assert_param(
( eRcvState == STATE_M_RX_INIT ) || ( eRcvState == STATE_M_RX_RCV ) ||
( eRcvState == STATE_M_RX_ERROR ) || ( eRcvState == STATE_M_RX_IDLE ));
break;
}
eRcvState = STATE_M_RX_IDLE;
switch (eSndState)
{
/* A frame was send finish and convert delay or respond timeout expired.
* If the frame is broadcast,The master will idle,and if the frame is not
* broadcast.Notify the listener process error.*/
case STATE_M_TX_XFWR:
if ( xFrameIsBroadcast == FALSE ) {
vMBMasterSetErrorType(EV_ERROR_RESPOND_TIMEOUT);
xNeedPoll = xMBMasterPortEventPost(EV_MASTER_ERROR_PROCESS);
}
break;
/* Function called in an illegal state. */
default:
assert_param(
( eSndState == STATE_M_TX_XFWR ) || ( eSndState == STATE_M_TX_IDLE ));
break;
}
eSndState = STATE_M_TX_IDLE;
vMBMasterPortTimersDisable( );
/* If timer mode is convert delay, the master event then turns EV_MASTER_EXECUTE status. */
if (eMasterCurTimerMode == MB_TMODE_CONVERT_DELAY) {
xNeedPoll = xMBMasterPortEventPost( EV_MASTER_EXECUTE );
}
return xNeedPoll;
}
/* Get Modbus Master send RTU's buffer address pointer.*/
void vMBMasterGetRTUSndBuf( UCHAR ** pucFrame )
{
*pucFrame = ( UCHAR * ) ucMasterRTUSndBuf;
}
/* Get Modbus Master send PDU's buffer address pointer.*/
void vMBMasterGetPDUSndBuf( UCHAR ** pucFrame )
{
*pucFrame = ( UCHAR * ) &ucMasterRTUSndBuf[MB_SER_PDU_PDU_OFF];
}
/* Set Modbus Master send PDU's buffer length.*/
void vMBMasterSetPDUSndLength( USHORT SendPDULength )
{
usMasterSendPDULength = SendPDULength;
}
/* Get Modbus Master send PDU's buffer length.*/
USHORT usMBMasterGetPDUSndLength( void )
{
return usMasterSendPDULength;
}
/* Set Modbus Master current timer mode.*/
void vMBMasterSetCurTimerMode( eMBMasterTimerMode eMBTimerMode )
{
eMasterCurTimerMode = eMBTimerMode;
}
/* The master request is broadcast? */
BOOL xMBMasterRequestIsBroadcast( void ){
return xFrameIsBroadcast;
}
#endif

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/*
* FreeModbus Libary: A portable Modbus implementation for Modbus ASCII/RTU.
* Copyright (c) 2006-2018 Christian Walter <cwalter@embedded-solutions.at>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* File: $Id: mbtcp.c,v 1.3 2006/12/07 22:10:34 wolti Exp $
*/
/* ----------------------- System includes ----------------------------------*/
#include "stdlib.h"
#include "string.h"
/* ----------------------- Platform includes --------------------------------*/
#include "port.h"
/* ----------------------- Modbus includes ----------------------------------*/
#include "mb.h"
#include "mbconfig.h"
#include "mbtcp.h"
#include "mbframe.h"
#include "mbport.h"
#if MB_SLAVE_TCP_ENABLED > 0
/* ----------------------- Defines ------------------------------------------*/
/* ----------------------- MBAP Header --------------------------------------*/
/*
*
* <------------------------ MODBUS TCP/IP ADU(1) ------------------------->
* <----------- MODBUS PDU (1') ---------------->
* +-----------+---------------+------------------------------------------+
* | TID | PID | Length | UID |Code | Data |
* +-----------+---------------+------------------------------------------+
* | | | | |
* (2) (3) (4) (5) (6)
*
* (2) ... MB_TCP_TID = 0 (Transaction Identifier - 2 Byte)
* (3) ... MB_TCP_PID = 2 (Protocol Identifier - 2 Byte)
* (4) ... MB_TCP_LEN = 4 (Number of bytes - 2 Byte)
* (5) ... MB_TCP_UID = 6 (Unit Identifier - 1 Byte)
* (6) ... MB_TCP_FUNC = 7 (Modbus Function Code)
*
* (1) ... Modbus TCP/IP Application Data Unit
* (1') ... Modbus Protocol Data Unit
*/
#define MB_TCP_TID 0
#define MB_TCP_PID 2
#define MB_TCP_LEN 4
#define MB_TCP_UID 6
#define MB_TCP_FUNC 7
#define MB_TCP_PROTOCOL_ID 0 /* 0 = Modbus Protocol */
/* ----------------------- Start implementation -----------------------------*/
eMBErrorCode
eMBTCPDoInit( USHORT ucTCPPort )
{
eMBErrorCode eStatus = MB_ENOERR;
if( xMBTCPPortInit( ucTCPPort ) == FALSE )
{
eStatus = MB_EPORTERR;
}
return eStatus;
}
void
eMBTCPStart( void )
{
}
void
eMBTCPStop( void )
{
/* Make sure that no more clients are connected. */
vMBTCPPortDisable( );
}
eMBErrorCode
eMBTCPReceive( UCHAR * pucRcvAddress, UCHAR ** ppucFrame, USHORT * pusLength )
{
eMBErrorCode eStatus = MB_EIO;
UCHAR *pucMBTCPFrame;
USHORT usLength;
USHORT usPID;
if( xMBTCPPortGetRequest( &pucMBTCPFrame, &usLength ) != FALSE )
{
usPID = pucMBTCPFrame[MB_TCP_PID] << 8U;
usPID |= pucMBTCPFrame[MB_TCP_PID + 1];
if( usPID == MB_TCP_PROTOCOL_ID )
{
*ppucFrame = &pucMBTCPFrame[MB_TCP_FUNC];
*pusLength = usLength - MB_TCP_FUNC;
eStatus = MB_ENOERR;
/* Modbus TCP does not use any addresses. Fake the source address such
* that the processing part deals with this frame.
*/
*pucRcvAddress = MB_TCP_PSEUDO_ADDRESS;
}
}
else
{
eStatus = MB_EIO;
}
return eStatus;
}
eMBErrorCode
eMBTCPSend( UCHAR _unused, const UCHAR * pucFrame, USHORT usLength )
{
eMBErrorCode eStatus = MB_ENOERR;
UCHAR *pucMBTCPFrame = ( UCHAR * ) pucFrame - MB_TCP_FUNC;
USHORT usTCPLength = usLength + MB_TCP_FUNC;
/* The MBAP header is already initialized because the caller calls this
* function with the buffer returned by the previous call. Therefore we
* only have to update the length in the header. Note that the length
* header includes the size of the Modbus PDU and the UID Byte. Therefore
* the length is usLength plus one.
*/
pucMBTCPFrame[MB_TCP_LEN] = ( usLength + 1 ) >> 8U;
pucMBTCPFrame[MB_TCP_LEN + 1] = ( usLength + 1 ) & 0xFF;
if( xMBTCPPortSendResponse( pucMBTCPFrame, usTCPLength ) == FALSE )
{
eStatus = MB_EIO;
}
return eStatus;
}
#endif

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/*
* FreeModbus Libary: A portable Modbus implementation for Modbus ASCII/RTU.
* Copyright (c) 2006-2018 Christian Walter <cwalter@embedded-solutions.at>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* File: $Id: mbtcp.h,v 1.2 2006/12/07 22:10:34 wolti Exp $
*/
#ifndef _MB_TCP_H
#define _MB_TCP_H
#ifdef __cplusplus
PR_BEGIN_EXTERN_C
#endif
/* ----------------------- Defines ------------------------------------------*/
#define MB_TCP_PSEUDO_ADDRESS 255
/* ----------------------- Function prototypes ------------------------------*/
eMBErrorCode eMBTCPDoInit( USHORT ucTCPPort );
void eMBTCPStart( void );
void eMBTCPStop( void );
eMBErrorCode eMBTCPReceive( UCHAR * pucRcvAddress, UCHAR ** pucFrame,
USHORT * pusLength );
eMBErrorCode eMBTCPSend( UCHAR _unused, const UCHAR * pucFrame,
USHORT usLength );
#ifdef __cplusplus
PR_END_EXTERN_C
#endif
#endif

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HardWare/FreeModbus/port/FreeRTOS/port.c Normal file
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/*
* FreeModbus Libary: RT-Thread Port
* Copyright (C) 2013 Armink <armink.ztl@gmail.com>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*
* File: $Id: port.c,v 1.60 2015/02/01 9:18:05 Armink $
*/
/* ----------------------- System includes --------------------------------*/
/* ----------------------- Modbus includes ----------------------------------*/
#include "port.h"
/* ----------------------- Variables ----------------------------------------*/
/* ----------------------- Start implementation -----------------------------*/
void EnterCriticalSection(void) { taskENTER_CRITICAL(); }
void ExitCriticalSection(void) { taskEXIT_CRITICAL(); }
/*put bytes in buff*/
void Put_in_fifo(Serial_fifo *buff, uint8_t *putdata, int length) {
portDISABLE_INTERRUPTS();
while (length--) {
buff->buffer[buff->put_index] = *putdata;
buff->put_index += 1;
if (buff->put_index >= FIFO_SIZE_MAX)
buff->put_index = 0;
/* if the next position is read index, discard this 'read char' */
if (buff->put_index == buff->get_index) {
buff->get_index += 1;
if (buff->get_index >= FIFO_SIZE_MAX)
buff->get_index = 0;
}
}
portENABLE_INTERRUPTS();
}
/*get bytes from buff*/
int Get_from_fifo(Serial_fifo *buff, uint8_t *getdata, int length) {
int size = length;
/* read from software FIFO */
while (length) {
int ch;
/* disable interrupt */
portDISABLE_INTERRUPTS();
if (buff->get_index != buff->put_index) {
ch = buff->buffer[buff->get_index];
buff->get_index += 1;
if (buff->get_index >= FIFO_SIZE_MAX)
buff->get_index = 0;
} else {
/* no data, enable interrupt and break out */
portENABLE_INTERRUPTS();
break;
}
*getdata = ch & 0xff;
getdata++;
length--;
/* enable interrupt */
portENABLE_INTERRUPTS();
}
return size - length;
}
/*判断是否进入在中断中*/
#ifndef IS_IRQ()
extern __asm uint32_t vPortGetIPSR(void); //调用FreeRTOS API
__inline bool IS_IRQ(void) //使用内联函数提高速度
{
if (vPortGetIPSR()) {
return TRUE;
}
return FALSE;
}
#endif // MACRO

79
HardWare/FreeModbus/port/FreeRTOS/portevent.c Normal file
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/*
* FreeModbus Libary: RT-Thread Port
* Copyright (C) 2013 Armink <armink.ztl@gmail.com>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*
* File: $Id: portevent.c,v 1.60 2013/08/13 15:07:05 Armink $
*/
/* ----------------------- Modbus includes ----------------------------------*/
#include "mb.h"
#include "mbport.h"
#include "port.h"
/* ----------------------- Variables ----------------------------------------*/
static EventGroupHandle_t xSlaveOsEvent;
/* ----------------------- Start implementation -----------------------------*/
BOOL xMBPortEventInit(void) {
xSlaveOsEvent = xEventGroupCreate();
if (xSlaveOsEvent != NULL) {
MODBUS_DEBUG("xMBPortEventInit Success!\r\n");
} else {
MODBUS_DEBUG("xMBPortEventInit Faild !\r\n");
return FALSE;
}
return TRUE;
}
BOOL xMBPortEventPost(eMBEventType eEvent) {
BaseType_t flag;
MODBUS_DEBUG("Post eEvent=%d!\r\n", eEvent);
if (xSlaveOsEvent != NULL) {
if (IS_IRQ()) {
xEventGroupSetBitsFromISR(xSlaveOsEvent, eEvent, &flag);
} else {
xEventGroupSetBits(xSlaveOsEvent, eEvent);
}
}
return TRUE;
}
BOOL xMBPortEventGet(eMBEventType *eEvent) {
uint32_t recvedEvent;
/* waiting forever OS event */
recvedEvent = xEventGroupWaitBits(xSlaveOsEvent,
EV_READY | EV_FRAME_RECEIVED | EV_EXECUTE |
EV_FRAME_SENT, /* 接收任务感兴趣的事件
*/
pdTRUE, /* 退出时清除事件?? */
pdFALSE, /* 满足感兴趣的所有事?? */
portMAX_DELAY); /* 指定超时事件,无限等待 */
switch (recvedEvent) {
case EV_READY:
*eEvent = EV_READY;
break;
case EV_FRAME_RECEIVED:
*eEvent = EV_FRAME_RECEIVED;
break;
case EV_EXECUTE:
*eEvent = EV_EXECUTE;
break;
case EV_FRAME_SENT:
*eEvent = EV_FRAME_SENT;
break;
}
return TRUE;
}

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HardWare/FreeModbus/port/FreeRTOS/portserial.c Normal file
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/*
* FreeModbus Libary: RT-Thread Port
* Copyright (C) 2013 Armink <armink.ztl@gmail.com>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*
* File: $Id: portserial.c,v 1.60 2013/08/13 15:07:05 Armink $
*/
#include "port.h"
/* ----------------------- Modbus includes ----------------------------------*/
#include "mb.h"
#include "mbport.h"
/* ----------------------- Static variables ---------------------------------*/
/* software simulation serial transmit IRQ handler thread */
static TaskHandle_t thread_serial_soft_trans_irq = NULL;
/* serial event */
static EventGroupHandle_t event_serial;
/* modbus slave serial device */
static UART_HandleTypeDef *serial;
/*
* Serial FIFO mode
*/
static volatile uint8_t rx_buff[FIFO_SIZE_MAX];
static Serial_fifo Slave_serial_rx_fifo;
/* ----------------------- Defines ------------------------------------------*/
/* serial transmit event */
#define EVENT_SERIAL_TRANS_START (1 << 0)
/* ----------------------- static functions ---------------------------------*/
static void prvvUARTTxReadyISR(void);
static void prvvUARTRxISR(void);
static void serial_soft_trans_irq(void *parameter);
static void Slave_TxCpltCallback(struct __UART_HandleTypeDef *huart);
static void Slave_RxCpltCallback(struct __UART_HandleTypeDef *huart);
static int stm32_getc(void);
static int stm32_putc(CHAR c);
/* ----------------------- Start implementation -----------------------------*/
BOOL xMBPortSerialInit(UCHAR ucPORT, ULONG ulBaudRate, UCHAR ucDataBits,
eMBParity eParity) {
/**
* set 485 mode receive and transmit control IO
* @note MODBUS_SLAVE_RT_CONTROL_PIN_INDEX need be defined by user
*/
// rt_pin_mode(MODBUS_SLAVE_RT_CONTROL_PIN_INDEX, PIN_MODE_OUTPUT);
/* set serial name */
if (ucPORT == 1) {
#if defined(USING_UART1)
extern UART_HandleTypeDef huart1;
serial = &huart1;
MODBUS_DEBUG("Slave using uart1!\r\n");
#endif
} else if (ucPORT == 2) {
#if defined(USING_UART2)
extern UART_HandleTypeDef huart2;
serial = &huart2;
MODBUS_DEBUG("Slave using uart2!\r\n");
#endif
} else if (ucPORT == 3) {
#if defined(USING_UART3)
extern UART_HandleTypeDef huart3;
serial = &huart3;
MODBUS_DEBUG("Slave using uart3!\r\n");
#endif
}
/* set serial configure */
serial->Init.StopBits = UART_STOPBITS_1;
serial->Init.BaudRate = ulBaudRate;
switch (eParity) {
case MB_PAR_NONE: {
serial->Init.WordLength = UART_WORDLENGTH_8B;
serial->Init.Parity = UART_PARITY_NONE;
break;
}
case MB_PAR_ODD: {
serial->Init.WordLength = UART_WORDLENGTH_9B;
serial->Init.Parity = UART_PARITY_ODD;
break;
}
case MB_PAR_EVEN: {
serial->Init.WordLength = UART_WORDLENGTH_9B;
serial->Init.Parity = UART_PARITY_EVEN;
break;
}
}
if (HAL_UART_Init(serial) != HAL_OK) {
Error_Handler();
}
__HAL_UART_DISABLE_IT(serial, UART_IT_RXNE);
__HAL_UART_DISABLE_IT(serial, UART_IT_TC);
/*registe recieve callback*/
HAL_UART_RegisterCallback(serial, HAL_UART_RX_COMPLETE_CB_ID,
Slave_RxCpltCallback);
/* software initialize */
Slave_serial_rx_fifo.buffer = rx_buff;
Slave_serial_rx_fifo.get_index = 0;
Slave_serial_rx_fifo.put_index = 0;
/* 创建串口发送线程*/
event_serial = xEventGroupCreate(); //创建事件
if (NULL != event_serial) {
MODBUS_DEBUG("Create Slave event_serial Event success!\r\n");
} else {
MODBUS_DEBUG("Create Slave event_serial Event Faild!\r\n");
}
BaseType_t xReturn =
xTaskCreate((TaskFunction_t)serial_soft_trans_irq, /* 任务函数*/
(const char *)"slave trans", /* 任务名称*/
(uint16_t)128, /* 栈*/
(void *)NULL, /* 入口参数 */
(UBaseType_t)12, /* 优先级*/
(TaskHandle_t *)&thread_serial_soft_trans_irq); /*任务句柄*/
if (xReturn == pdPASS) {
MODBUS_DEBUG("xTaskCreate slave trans success\r\n");
}
return TRUE;
}
void vMBPortSerialEnable(BOOL xRxEnable, BOOL xTxEnable) {
__HAL_UART_CLEAR_FLAG(serial,UART_FLAG_RXNE);
__HAL_UART_CLEAR_FLAG(serial,UART_FLAG_TC);
if (xRxEnable) {
/* enable RX interrupt */
__HAL_UART_ENABLE_IT(serial, UART_IT_RXNE);
/* switch 485 to receive mode */
MODBUS_DEBUG("RS485_RX_MODE\r\n");
SLAVE_RS485_RX_MODE;
} else {
/* switch 485 to transmit mode */
MODBUS_DEBUG("RS485_TX_MODE\r\n");
SLAVE_RS485_TX_MODE;
/* disable RX interrupt */
__HAL_UART_DISABLE_IT(serial, UART_IT_RXNE);
}
if (xTxEnable) {
/* start serial transmit */
xEventGroupSetBits(event_serial, EVENT_SERIAL_TRANS_START);
} else {
/* stop serial transmit */
xEventGroupClearBits(event_serial, EVENT_SERIAL_TRANS_START);
/*测试帧数*/
// printf("ms=%.2f,fps=%.2f\r\n", __HAL_TIM_GetCounter(&htim7) / 100.f,
// 1000.f / (__HAL_TIM_GetCounter(&htim7) / 100.f));
}
}
void vMBPortClose(void) { __HAL_UART_DISABLE(serial); }
/*Send a byte*/
BOOL xMBPortSerialPutByte(CHAR ucByte) {
stm32_putc(ucByte);
return TRUE;
}
/*Get a byte from fifo*/
BOOL xMBPortSerialGetByte(CHAR *pucByte) {
Get_from_fifo(&Slave_serial_rx_fifo, (uint8_t *)pucByte, 1);
return TRUE;
}
/*
* Create an interrupt handler for the transmit buffer empty interrupt
* (or an equivalent) for your target processor. This function should then
* call pxMBFrameCBTransmitterEmpty( ) which tells the protocol stack that
* a new character can be sent. The protocol stack will then call
* xMBPortSerialPutByte( ) to send the character.
*/
void prvvUARTTxReadyISR(void) { pxMBFrameCBTransmitterEmpty(); }
/*
* Create an interrupt handler for the receive interrupt for your target
* processor. This function should then call pxMBFrameCBByteReceived( ). The
* protocol stack will then call xMBPortSerialGetByte( ) to retrieve the
* character.
*/
void prvvUARTRxISR(void) { pxMBFrameCBByteReceived(); }
/**
* Software simulation serial transmit IRQ handler.
*
* @param parameter parameter
*/
static void serial_soft_trans_irq(void *parameter) {
uint32_t recved_event;
while (1) {
/* waiting for serial transmit start */
xEventGroupWaitBits(event_serial, /* 事件对象句柄 */
EVENT_SERIAL_TRANS_START, /* 接收任务感兴趣的事件 */
pdFALSE, /* 退出时清除事件?? */
pdFALSE, /* 满足感兴趣的所有事?? */
portMAX_DELAY); /* 指定超时事件,无限等待 */
/* execute modbus callback */
prvvUARTTxReadyISR();
}
}
/**
* @brief Rx Transfer completed callbacks.
* @param huart Pointer to a UART_HandleTypeDef structure that contains
* the configuration information for the specified UART module.
* @retval None
*/
void Slave_RxCpltCallback(UART_HandleTypeDef *huart) {
int ch = -1;
while (1) {
ch = stm32_getc();
if (ch == -1)
break;
Put_in_fifo(&Slave_serial_rx_fifo, (uint8_t *)&ch, 1);
}
prvvUARTRxISR();
}
/*UART发送一个字节*/
static int stm32_putc(CHAR c) {
serial->Instance->DR = c;
while (!(serial->Instance->SR & UART_FLAG_TC))
;
return TRUE;
}
/*UART接收一个字节*/
static int stm32_getc(void) {
int ch;
ch = -1;
if (serial->Instance->SR & UART_FLAG_RXNE) {
ch = serial->Instance->DR & 0xff;
}
return ch;
}

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/*
* FreeModbus Libary: RT-Thread Port
* Copyright (C) 2013 Armink <armink.ztl@gmail.com>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*
* File: $Id: porttimer.c,v 1.60 2013/08/13 15:07:05 Armink $
*/
/* ----------------------- Platform includes --------------------------------*/
#include "port.h"
/* ----------------------- Modbus includes ----------------------------------*/
#include "mb.h"
#include "mbport.h"
/* ----------------------- static functions ---------------------------------*/
static TimerHandle_t timer;
static void prvvTIMERExpiredISR(void);
static void timer_timeout_ind(TIM_HandleTypeDef *xTimer);
/* ----------------------- Start implementation -----------------------------*/
BOOL xMBPortTimersInit(USHORT usTim1Timerout50us) {
/*
Freertos can't create timer in isr!
So,I use hardware timer here! ！Freq=1Mhz
*/
timer = xTimerCreate(
"Slave timer",
(50 * usTim1Timerout50us) / (1000 * 1000 / configTICK_RATE_HZ) + 1,
pdFALSE, (void *)2, timer_timeout_ind);
if (timer != NULL)
return TRUE;
}
void vMBPortTimersEnable() {
if (IS_IRQ()) {
xTimerStartFromISR((TimerHandle_t)timer, 0);
} else {
xTimerStart((TimerHandle_t)timer, 0);
}
}
void vMBPortTimersDisable() {
if (IS_IRQ()) {
xTimerStopFromISR((TimerHandle_t)timer, 0);
} else {
xTimerStop((TimerHandle_t)timer, 0);
}
}
void prvvTIMERExpiredISR(void) { (void)pxMBPortCBTimerExpired(); }
static void timer_timeout_ind(TIM_HandleTypeDef *xTimer) {
prvvTIMERExpiredISR();
}

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/*
* FreeModbus Libary: RT-Thread Port
* Copyright (C) 2013 Armink <armink.ztl@gmail.com>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*
* File: $Id: porttimer_m.c,v 1.60 2013/08/13 15:07:05 Armink add Master
* Functions$
*/
/* ----------------------- Platform includes --------------------------------*/
#include "port.h"
/* ----------------------- Modbus includes ----------------------------------*/
#include "mb.h"
#include "mb_m.h"
#include "mbport.h"
#if MB_MASTER_RTU_ENABLED > 0 || MB_MASTER_ASCII_ENABLED > 0
/* ----------------------- Variables ----------------------------------------*/
static USHORT usT35TimeOut50us;
static TimerHandle_t timer = NULL;
static void prvvTIMERExpiredISR(void);
static void timer_timeout_ind(TimerHandle_t xTimer);
static BaseType_t pxHigherPriorityTaskWoken;
/* ----------------------- static functions ---------------------------------*/
static void prvvTIMERExpiredISR(void);
/* ----------------------- Start implementation -----------------------------*/
BOOL xMBMasterPortTimersInit(USHORT usTimeOut50us) {
/* backup T35 ticks */
usT35TimeOut50us = usTimeOut50us;
timer = xTimerCreate(
"Master timer",
(50 * usT35TimeOut50us) / (1000 * 1000 / configTICK_RATE_HZ) + 1, pdFALSE,
(void *)1, timer_timeout_ind);
if (timer != NULL) {
MODBUS_DEBUG(" Create Master Timer Success!\r\n");
return TRUE;
} else {
MODBUS_DEBUG(" Create Master Timer Faild!\r\n");
return FALSE;
}
}
void vMBMasterPortTimersT35Enable() {
// MODBUS_DEBUG("Start master timer!\r\n");
uint32_t timer_tick =
(50 * usT35TimeOut50us) / (1000 * 1000 / configTICK_RATE_HZ) + 1;
//printf("Set Timre=%d ms\r\n", timer_tick);
/* Set current timer mode, don't change it.*/
vMBMasterSetCurTimerMode(MB_TMODE_T35);
if (IS_IRQ()) {
xTimerChangePeriodFromISR((TimerHandle_t)timer, timer_tick, &pxHigherPriorityTaskWoken);
} else {
xTimerChangePeriod((TimerHandle_t)timer, timer_tick, 0);
}
}
void vMBMasterPortTimersConvertDelayEnable() {
uint32_t timer_tick =
MB_MASTER_DELAY_MS_CONVERT * configTICK_RATE_HZ / 1000;
//printf("Set Timre=%d ms\r\n", timer_tick);
/* Set current timer mode, don't change it.*/
vMBMasterSetCurTimerMode(MB_TMODE_CONVERT_DELAY);
if (IS_IRQ()) {
xTimerChangePeriodFromISR((TimerHandle_t)timer, timer_tick, &pxHigherPriorityTaskWoken);
} else {
xTimerChangePeriod((TimerHandle_t)timer, timer_tick, 0);
}
}
void vMBMasterPortTimersRespondTimeoutEnable() {
uint32_t timer_tick =
MB_MASTER_TIMEOUT_MS_RESPOND * configTICK_RATE_HZ / 1000;
//printf("Set %d\r\n", timer_tick);
/* Set current timer mode, don't change it.*/
vMBMasterSetCurTimerMode(MB_TMODE_RESPOND_TIMEOUT);
if (IS_IRQ()) {
xTimerChangePeriodFromISR((TimerHandle_t)timer, timer_tick, &pxHigherPriorityTaskWoken);
} else {
xTimerChangePeriod((TimerHandle_t)timer, timer_tick, 0);
}
}
void vMBMasterPortTimersDisable() {
// MODBUS_DEBUG("Stop master timer!\r\n");
//printf("STop!\r\n");
if (IS_IRQ()) {
xTimerStopFromISR((TimerHandle_t)timer, 0);
} else {
xTimerStop((TimerHandle_t)timer, 0);
}
}
void prvvTIMERExpiredISR(void) { (void)pxMBMasterPortCBTimerExpired(); }
static void timer_timeout_ind(xTimerHandle xTimer) {
// MODBUS_DEBUG(" Master Timer callback!\r\n");
//printf("%.2f ms\r\n",(float)__HAL_TIM_GetCounter(&htim7)/100.f);
prvvTIMERExpiredISR();
}
#endif

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/*
* FreeModbus Libary: user callback functions and buffer define in slave mode
* Copyright (C) 2013 Armink <armink.ztl@gmail.com>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*
* File: $Id: user_mb_app.c,v 1.60 2013/11/23 11:49:05 Armink $
*/
#include "user_mb_app.h"
/*------------------------Slave mode use these variables----------------------*/
//Slave mode:DiscreteInputs variables
USHORT usSDiscInStart = S_DISCRETE_INPUT_START;
#if S_DISCRETE_INPUT_NDISCRETES % 8
UCHAR ucSDiscInBuf[S_DISCRETE_INPUT_NDISCRETES / 8 + 1];
#else
UCHAR ucSDiscInBuf[S_DISCRETE_INPUT_NDISCRETES / 8];
#endif
//Slave mode:Coils variables
USHORT usSCoilStart = S_COIL_START;
#if S_COIL_NCOILS % 8
UCHAR ucSCoilBuf[S_COIL_NCOILS / 8 + 1];
#else
UCHAR ucSCoilBuf[S_COIL_NCOILS / 8];
#endif
//Slave mode:InputRegister variables
USHORT usSRegInStart = S_REG_INPUT_START;
USHORT usSRegInBuf[S_REG_INPUT_NREGS];
//Slave mode:HoldingRegister variables
USHORT usSRegHoldStart = S_REG_HOLDING_START;
USHORT usSRegHoldBuf[S_REG_HOLDING_NREGS];
//Slave mode:all variables
Slave_data Slave_station = {
ucSDiscInBuf,
ucSCoilBuf,
usSRegInBuf,
usSRegHoldBuf,
};
/**
* Modbus slave input register callback function.
*
* @param pucRegBuffer input register buffer
* @param usAddress input register address
* @param usNRegs input register number
*
* @return result
*/
eMBErrorCode
eMBRegInputCB(UCHAR *pucRegBuffer, USHORT usAddress, USHORT usNRegs)
{
eMBErrorCode eStatus = MB_ENOERR;
USHORT iRegIndex;
USHORT *pusRegInputBuf;
USHORT REG_INPUT_START;
USHORT REG_INPUT_NREGS;
USHORT usRegInStart;
pusRegInputBuf = usSRegInBuf;
REG_INPUT_START = S_REG_INPUT_START;
REG_INPUT_NREGS = S_REG_INPUT_NREGS;
usRegInStart = usSRegInStart;
/* it already plus one in modbus function method. */
usAddress--;
if ((usAddress >= REG_INPUT_START) && (usAddress + usNRegs <= REG_INPUT_START + REG_INPUT_NREGS))
{
iRegIndex = usAddress - usRegInStart;
while (usNRegs > 0)
{
*pucRegBuffer++ = (UCHAR)(pusRegInputBuf[iRegIndex] >> 8);
*pucRegBuffer++ = (UCHAR)(pusRegInputBuf[iRegIndex] & 0xFF);
iRegIndex++;
usNRegs--;
}
}
else
{
eStatus = MB_ENOREG;
}
return eStatus;
}
/**
* Modbus slave holding register callback function.
*
* @param pucRegBuffer holding register buffer
* @param usAddress holding register address
* @param usNRegs holding register number
* @param eMode read or write
*
* @return result
*/
eMBErrorCode eMBRegHoldingCB(UCHAR *pucRegBuffer, USHORT usAddress,
USHORT usNRegs, eMBRegisterMode eMode)
{
eMBErrorCode eStatus = MB_ENOERR;
USHORT iRegIndex;
USHORT *pusRegHoldingBuf;
USHORT REG_HOLDING_START;
USHORT REG_HOLDING_NREGS;
USHORT usRegHoldStart;
pusRegHoldingBuf = usSRegHoldBuf;
REG_HOLDING_START = S_REG_HOLDING_START;
REG_HOLDING_NREGS = S_REG_HOLDING_NREGS;
usRegHoldStart = usSRegHoldStart;
/* it already plus one in modbus function method. */
usAddress--;
if ((usAddress >= REG_HOLDING_START) && (usAddress + usNRegs <= REG_HOLDING_START + REG_HOLDING_NREGS))
{
iRegIndex = usAddress - usRegHoldStart;
switch (eMode)
{
/* read current register values from the protocol stack. */
case MB_REG_READ:
while (usNRegs > 0)
{
*pucRegBuffer++ = (UCHAR)(pusRegHoldingBuf[iRegIndex] >> 8);
*pucRegBuffer++ = (UCHAR)(pusRegHoldingBuf[iRegIndex] & 0xFF);
iRegIndex++;
usNRegs--;
}
break;
/* write current register values with new values from the protocol stack. */
case MB_REG_WRITE:
while (usNRegs > 0)
{
pusRegHoldingBuf[iRegIndex] = *pucRegBuffer++ << 8;
pusRegHoldingBuf[iRegIndex] |= *pucRegBuffer++;
iRegIndex++;
usNRegs--;
}
break;
}
}
else
{
eStatus = MB_ENOREG;
}
return eStatus;
}
/**
* Modbus slave coils callback function.
*
* @param pucRegBuffer coils buffer
* @param usAddress coils address
* @param usNCoils coils number
* @param eMode read or write
*
* @return result
*/
eMBErrorCode eMBRegCoilsCB(UCHAR *pucRegBuffer, USHORT usAddress,
USHORT usNCoils, eMBRegisterMode eMode)
{
eMBErrorCode eStatus = MB_ENOERR;
USHORT iRegIndex, iRegBitIndex, iNReg;
UCHAR *pucCoilBuf;
USHORT COIL_START;
USHORT COIL_NCOILS;
USHORT usCoilStart;
iNReg = usNCoils / 8 + 1;
pucCoilBuf = ucSCoilBuf;
COIL_START = S_COIL_START;
COIL_NCOILS = S_COIL_NCOILS;
usCoilStart = usSCoilStart;
/* it already plus one in modbus function method. */
usAddress--;
if ((usAddress >= COIL_START) &&
(usAddress + usNCoils <= COIL_START + COIL_NCOILS))
{
iRegIndex = (USHORT)(usAddress - usCoilStart) / 8;
iRegBitIndex = (USHORT)(usAddress - usCoilStart) % 8;
switch (eMode)
{
/* read current coil values from the protocol stack. */
case MB_REG_READ:
while (iNReg > 0)
{
*pucRegBuffer++ = xMBUtilGetBits(&pucCoilBuf[iRegIndex++],
iRegBitIndex, 8);
iNReg--;
}
pucRegBuffer--;
/* last coils */
usNCoils = usNCoils % 8;
/* filling zero to high bit */
*pucRegBuffer = *pucRegBuffer << (8 - usNCoils);
*pucRegBuffer = *pucRegBuffer >> (8 - usNCoils);
break;
/* write current coil values with new values from the protocol stack. */
case MB_REG_WRITE:
while (iNReg > 1)
{
xMBUtilSetBits(&pucCoilBuf[iRegIndex++], iRegBitIndex, 8,
*pucRegBuffer++);
iNReg--;
}
/* last coils */
usNCoils = usNCoils % 8;
/* xMBUtilSetBits has bug when ucNBits is zero */
if (usNCoils != 0)
{
xMBUtilSetBits(&pucCoilBuf[iRegIndex++], iRegBitIndex, usNCoils,
*pucRegBuffer++);
}
break;
}
}
else
{
eStatus = MB_ENOREG;
}
return eStatus;
}
/**
* Modbus slave discrete callback function.
*
* @param pucRegBuffer discrete buffer
* @param usAddress discrete address
* @param usNDiscrete discrete number
*
* @return result
*/
eMBErrorCode eMBRegDiscreteCB(UCHAR *pucRegBuffer, USHORT usAddress, USHORT usNDiscrete)
{
eMBErrorCode eStatus = MB_ENOERR;
USHORT iRegIndex, iRegBitIndex, iNReg;
UCHAR *pucDiscreteInputBuf;
USHORT DISCRETE_INPUT_START;
USHORT DISCRETE_INPUT_NDISCRETES;
USHORT usDiscreteInputStart;
iNReg = usNDiscrete / 8 + 1;
pucDiscreteInputBuf = ucSDiscInBuf;
DISCRETE_INPUT_START = S_DISCRETE_INPUT_START;
DISCRETE_INPUT_NDISCRETES = S_DISCRETE_INPUT_NDISCRETES;
usDiscreteInputStart = usSDiscInStart;
/* it already plus one in modbus function method. */
usAddress--;
if ((usAddress >= DISCRETE_INPUT_START) && (usAddress + usNDiscrete <= DISCRETE_INPUT_START + DISCRETE_INPUT_NDISCRETES))
{
iRegIndex = (USHORT)(usAddress - usDiscreteInputStart) / 8;
iRegBitIndex = (USHORT)(usAddress - usDiscreteInputStart) % 8;
while (iNReg > 0)
{
*pucRegBuffer++ = xMBUtilGetBits(&pucDiscreteInputBuf[iRegIndex++],
iRegBitIndex, 8);
iNReg--;
}
pucRegBuffer--;
/* last discrete */
usNDiscrete = usNDiscrete % 8;
/* filling zero to high bit */
*pucRegBuffer = *pucRegBuffer << (8 - usNDiscrete);
*pucRegBuffer = *pucRegBuffer >> (8 - usNDiscrete);
}
else
{
eStatus = MB_ENOREG;
}
return eStatus;
}

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<pMon>Segger\JL2CM3.dll</pMon>
</DebugOpt>
<TargetDriverDllRegistry>
<SetRegEntry>
<Number>0</Number>
<Key>DLGUARM</Key>
</SetRegEntry>
<SetRegEntry>
<Number>0</Number>
<Key>ARMRTXEVENTFLAGS</Key>
@ -129,7 +125,7 @@
<SetRegEntry>
<Number>0</Number>
<Key>DLGTARM</Key>
<Name>(1010=-1,-1,-1,-1,0)(1007=-1,-1,-1,-1,0)(1008=-1,-1,-1,-1,0)(1009=-1,-1,-1,-1,0)</Name>
<Name>(1010=-1,-1,-1,-1,0)(1007=-1,-1,-1,-1,0)(1008=-1,-1,-1,-1,0)(1009=889,161,1147,749,0)</Name>
</SetRegEntry>
<SetRegEntry>
<Number>0</Number>
@ -157,22 +153,67 @@
<Ww>
<count>0</count>
<WinNumber>1</WinNumber>
<ItemText>g_uart2_dev</ItemText>
<ItemText>ADCDataBuffer,0x0A</ItemText>
</Ww>
<Ww>
<count>1</count>
<WinNumber>1</WinNumber>
<ItemText>g_uart2_data</ItemText>
<ItemText>pusRegHoldingBuf</ItemText>
</Ww>
<Ww>
<count>2</count>
<WinNumber>1</WinNumber>
<ItemText>i</ItemText>
<ItemText>ucMBFrame</ItemText>
</Ww>
<Ww>
<count>3</count>
<WinNumber>1</WinNumber>
<ItemText>ADCDataBuffer,0x0A</ItemText>
<ItemText>usMRegHoldBuf</ItemText>
</Ww>
<Ww>
<count>4</count>
<WinNumber>1</WinNumber>
<ItemText>ucMasterRTURcvBuf</ItemText>
</Ww>
<Ww>
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MDK-ARM/NBQlaohua/NBQlaohua.build_log.htm
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@ -22,37 +22,25 @@ Dialog DLL: TCM.DLL V1.35.1.0
<h2>Project:</h2>
C:\Users\ddouv\Desktop\laohua\NBQlaohua\MDK-ARM\NBQlaohua.uvprojx
Project File Date: 12/19/2024
Project File Date: 01/10/2025
<h2>Output:</h2>
*** Using Compiler 'V5.06 update 6 (build 750)', folder: 'C:\Keil_v5\ARM\ARMCC\Bin'
Build target 'NBQlaohua'
compiling freertos.c...
../Core/Inc/adc.h(44): warning: #1295-D: Deprecated declaration ADC_Start - give arg types
void ADC_Start();
../HardWare/STM32MB/port/MB_port.h(72): warning: #47-D: incompatible redefinition of macro "DEBUG" (declared at line 55 of "../Core/Inc/usart.h")
#define DEBUG
../Core/Src/freertos.c(61): warning: #188-D: enumerated type mixed with another type
.priority = 2,
../Core/Src/freertos.c(68): warning: #188-D: enumerated type mixed with another type
.priority = 2,
../Core/Src/freertos.c(75): warning: #188-D: enumerated type mixed with another type
.priority = 2,
../Core/Src/freertos.c(82): warning: #188-D: enumerated type mixed with another type
.priority = 2,
../Core/Src/freertos.c(219): warning: #188-D: enumerated type mixed with another type
MCU_LED(0);
../Core/Src/freertos.c(219): warning: #188-D: enumerated type mixed with another type
MCU_LED(0);
../Core/Src/freertos.c(221): warning: #188-D: enumerated type mixed with another type
MCU_LED(1);
../Core/Src/freertos.c(221): warning: #188-D: enumerated type mixed with another type
MCU_LED(1);
../Core/Src/freertos.c: 10 warnings, 0 errors
compiling APP_State.c...
..\HardWare\APP\APP_State.c(284): warning: #1-D: last line of file ends without a newline
}
..\HardWare\APP\APP_State.c(284): warning: #940-D: missing return statement at end of non-void function "DetectVolCur"
}
..\HardWare\APP\APP_State.c(274): warning: #177-D: function "DetectVolCur" was declared but never referenced
static bool DetectVolCur(
..\HardWare\APP\APP_State.c: 3 warnings, 0 errors
linking...
Program Size: Code=32608 RO-data=844 RW-data=804 ZI-data=13524
Program Size: Code=41272 RO-data=1512 RW-data=1064 ZI-data=23864
FromELF: creating hex file...
"NBQlaohua\NBQlaohua.axf" - 0 Error(s), 10 Warning(s).
After Build - User command #1: fromelf --bin --output=NBQlaohua/NBQlaohua.bin NBQlaohua/NBQlaohua.axf
After Build - User command #2: fromelf --text -a -c --output=NBQlaohua/NBQlaohua.dis NBQlaohua/NBQlaohua.axf
"NBQlaohua\NBQlaohua.axf" - 0 Error(s), 3 Warning(s).
<h2>Software Packages used:</h2>
@ -75,7 +63,7 @@ Package Vendor: Keil
<h2>Collection of Component Files used:</h2>
* Component: ARM::CMSIS:CORE:5.1.1
Build Time Elapsed: 00:00:04
Build Time Elapsed: 00:00:05
</pre>
</body>
</html>

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4694
MDK-ARM/NBQlaohua/NBQlaohua.hex
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3738
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17
MDK-ARM/NBQlaohua/NBQlaohua.lnp
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@ -45,25 +45,24 @@
"nbqlaohua\cmsis_os2.o"
"nbqlaohua\heap_4.o"
"nbqlaohua\port.o"
"nbqlaohua\modbus_master_test.o"
"nbqlaohua\ads1115_drive.o"
"nbqlaohua\iic.o"
"nbqlaohua\ads1115_device.o"
"nbqlaohua\mb_m.o"
"nbqlaohua\mbrtu_m.o"
"nbqlaohua\mbcrc.o"
"nbqlaohua\mbrtu_m.o"
"nbqlaohua\mbfunccoils_m.o"
"nbqlaohua\mbfuncdisc_m.o"
"nbqlaohua\mbfuncholding_m.o"
"nbqlaohua\mbfuncinput_m.o"
"nbqlaohua\mbfuncother.o"
"nbqlaohua\mbutils.o"
"nbqlaohua\mbfuncdiag.o"
"nbqlaohua\mbfuncother.o"
"nbqlaohua\user_mb_app_m.o"
"nbqlaohua\porttimer_m.o"
"nbqlaohua\portserial_m.o"
"nbqlaohua\port_1.o"
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"nbqlaohua\mb_port.o"
"nbqlaohua\ads1115_drive.o"
"nbqlaohua\iic.o"
"nbqlaohua\ads1115_device.o"
"nbqlaohua\portserial_m.o"
"nbqlaohua\porttimer_m.o"
--library_type=microlib --strict --scatter "NBQlaohua\NBQlaohua.sct"
--summary_stderr --info summarysizes --map --load_addr_map_info --xref --callgraph --symbols
--info sizes --info totals --info unused --info veneers

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MDK-ARM/NBQlaohua/ads1115_drive.d
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@ -2,7 +2,19 @@ nbqlaohua\ads1115_drive.o: ..\HardWare\ADS1115\ADS1115_drive.c
nbqlaohua\ads1115_drive.o: ..\HardWare\ADS1115\ADS1115_drive.h
nbqlaohua\ads1115_drive.o: ../HardWare/Sys/sys.h
nbqlaohua\ads1115_drive.o: C:\Keil_v5\ARM\ARMCC\Bin\..\include\stdint.h
nbqlaohua\ads1115_drive.o: ..\HardWare\ADS1115\IIC.h
nbqlaohua\ads1115_drive.o: ../Middlewares/Third_Party/FreeRTOS/Source/include/FreeRTOS.h
nbqlaohua\ads1115_drive.o: C:\Keil_v5\ARM\ARMCC\Bin\..\include\stddef.h
nbqlaohua\ads1115_drive.o: ../Core/Inc/FreeRTOSConfig.h
nbqlaohua\ads1115_drive.o: ../Middlewares/Third_Party/FreeRTOS/Source/include/projdefs.h
nbqlaohua\ads1115_drive.o: ../Middlewares/Third_Party/FreeRTOS/Source/include/portable.h
nbqlaohua\ads1115_drive.o: ../Middlewares/Third_Party/FreeRTOS/Source/include/deprecated_definitions.h
nbqlaohua\ads1115_drive.o: ../Middlewares/Third_Party/FreeRTOS/Source/portable/RVDS/ARM_CM3/portmacro.h
nbqlaohua\ads1115_drive.o: ../Middlewares/Third_Party/FreeRTOS/Source/include/mpu_wrappers.h
nbqlaohua\ads1115_drive.o: ../Middlewares/Third_Party/FreeRTOS/Source/include/task.h
nbqlaohua\ads1115_drive.o: ../Middlewares/Third_Party/FreeRTOS/Source/include/list.h
nbqlaohua\ads1115_drive.o: ../Middlewares/Third_Party/FreeRTOS/Source/include/semphr.h
nbqlaohua\ads1115_drive.o: ../Middlewares/Third_Party/FreeRTOS/Source/include/queue.h
nbqlaohua\ads1115_drive.o: ../Core/Inc/main.h
nbqlaohua\ads1115_drive.o: ../Drivers/STM32F1xx_HAL_Driver/Inc/stm32f1xx_hal.h
nbqlaohua\ads1115_drive.o: ../Core/Inc/stm32f1xx_hal_conf.h
nbqlaohua\ads1115_drive.o: ../Drivers/STM32F1xx_HAL_Driver/Inc/stm32f1xx_hal_rcc.h
@ -16,7 +28,6 @@ nbqlaohua\ads1115_drive.o: ../Drivers/CMSIS/Include/cmsis_armcc.h
nbqlaohua\ads1115_drive.o: ../Drivers/CMSIS/Device/ST/STM32F1xx/Include/system_stm32f1xx.h
nbqlaohua\ads1115_drive.o: ../Drivers/STM32F1xx_HAL_Driver/Inc/stm32f1xx_hal.h
nbqlaohua\ads1115_drive.o: ../Drivers/STM32F1xx_HAL_Driver/Inc/Legacy/stm32_hal_legacy.h
nbqlaohua\ads1115_drive.o: C:\Keil_v5\ARM\ARMCC\Bin\..\include\stddef.h
nbqlaohua\ads1115_drive.o: ../Drivers/STM32F1xx_HAL_Driver/Inc/stm32f1xx_hal_rcc_ex.h
nbqlaohua\ads1115_drive.o: ../Drivers/STM32F1xx_HAL_Driver/Inc/stm32f1xx_hal_gpio.h
nbqlaohua\ads1115_drive.o: ../Drivers/STM32F1xx_HAL_Driver/Inc/stm32f1xx_hal_gpio_ex.h
@ -34,4 +45,8 @@ nbqlaohua\ads1115_drive.o: ../Drivers/STM32F1xx_HAL_Driver/Inc/stm32f1xx_hal_tim
nbqlaohua\ads1115_drive.o: ../Drivers/STM32F1xx_HAL_Driver/Inc/stm32f1xx_hal_tim_ex.h
nbqlaohua\ads1115_drive.o: ../Drivers/STM32F1xx_HAL_Driver/Inc/stm32f1xx_hal_uart.h
nbqlaohua\ads1115_drive.o: ../Drivers/STM32F1xx_HAL_Driver/Inc/stm32f1xx_hal_usart.h
nbqlaohua\ads1115_drive.o: ../Core/Inc/gpio.h
nbqlaohua\ads1115_drive.o: ../HardWare/Delay/Delay.h
nbqlaohua\ads1115_drive.o: ../HardWare/Sys/sys.h
nbqlaohua\ads1115_drive.o: ..\HardWare\ADS1115\IIC.h
nbqlaohua\ads1115_drive.o: ..\HardWare\ADS1115\ADS1115_device.h

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@ -2,6 +2,53 @@ nbqlaohua\app_state.o: ..\HardWare\APP\APP_State.c
nbqlaohua\app_state.o: C:\Keil_v5\ARM\ARMCC\Bin\..\include\stdio.h
nbqlaohua\app_state.o: C:\Keil_v5\ARM\ARMCC\Bin\..\include\stdint.h
nbqlaohua\app_state.o: C:\Keil_v5\ARM\ARMCC\Bin\..\include\string.h
nbqlaohua\app_state.o: ../HardWare/Sys/sys.h
nbqlaohua\app_state.o: ../Middlewares/Third_Party/FreeRTOS/Source/include/FreeRTOS.h
nbqlaohua\app_state.o: C:\Keil_v5\ARM\ARMCC\Bin\..\include\stddef.h
nbqlaohua\app_state.o: ../Core/Inc/FreeRTOSConfig.h
nbqlaohua\app_state.o: ../Middlewares/Third_Party/FreeRTOS/Source/include/projdefs.h
nbqlaohua\app_state.o: ../Middlewares/Third_Party/FreeRTOS/Source/include/portable.h
nbqlaohua\app_state.o: ../Middlewares/Third_Party/FreeRTOS/Source/include/deprecated_definitions.h
nbqlaohua\app_state.o: ../Middlewares/Third_Party/FreeRTOS/Source/portable/RVDS/ARM_CM3/portmacro.h
nbqlaohua\app_state.o: ../Middlewares/Third_Party/FreeRTOS/Source/include/mpu_wrappers.h
nbqlaohua\app_state.o: ../Middlewares/Third_Party/FreeRTOS/Source/include/task.h
nbqlaohua\app_state.o: ../Middlewares/Third_Party/FreeRTOS/Source/include/list.h
nbqlaohua\app_state.o: ../Middlewares/Third_Party/FreeRTOS/Source/include/semphr.h
nbqlaohua\app_state.o: ../Middlewares/Third_Party/FreeRTOS/Source/include/queue.h
nbqlaohua\app_state.o: ../Core/Inc/main.h
nbqlaohua\app_state.o: ../Drivers/STM32F1xx_HAL_Driver/Inc/stm32f1xx_hal.h
nbqlaohua\app_state.o: ../Core/Inc/stm32f1xx_hal_conf.h
nbqlaohua\app_state.o: ../Drivers/STM32F1xx_HAL_Driver/Inc/stm32f1xx_hal_rcc.h
nbqlaohua\app_state.o: ../Drivers/STM32F1xx_HAL_Driver/Inc/stm32f1xx_hal_def.h
nbqlaohua\app_state.o: ../Drivers/CMSIS/Device/ST/STM32F1xx/Include/stm32f1xx.h
nbqlaohua\app_state.o: ../Drivers/CMSIS/Device/ST/STM32F1xx/Include/stm32f105xc.h
nbqlaohua\app_state.o: ../Drivers/CMSIS/Include/core_cm3.h
nbqlaohua\app_state.o: ../Drivers/CMSIS/Include/cmsis_version.h
nbqlaohua\app_state.o: ../Drivers/CMSIS/Include/cmsis_compiler.h
nbqlaohua\app_state.o: ../Drivers/CMSIS/Include/cmsis_armcc.h
nbqlaohua\app_state.o: ../Drivers/CMSIS/Device/ST/STM32F1xx/Include/system_stm32f1xx.h
nbqlaohua\app_state.o: ../Drivers/STM32F1xx_HAL_Driver/Inc/stm32f1xx_hal.h
nbqlaohua\app_state.o: ../Drivers/STM32F1xx_HAL_Driver/Inc/Legacy/stm32_hal_legacy.h
nbqlaohua\app_state.o: ../Drivers/STM32F1xx_HAL_Driver/Inc/stm32f1xx_hal_rcc_ex.h
nbqlaohua\app_state.o: ../Drivers/STM32F1xx_HAL_Driver/Inc/stm32f1xx_hal_gpio.h
nbqlaohua\app_state.o: ../Drivers/STM32F1xx_HAL_Driver/Inc/stm32f1xx_hal_gpio_ex.h
nbqlaohua\app_state.o: ../Drivers/STM32F1xx_HAL_Driver/Inc/stm32f1xx_hal_exti.h
nbqlaohua\app_state.o: ../Drivers/STM32F1xx_HAL_Driver/Inc/stm32f1xx_hal_dma.h
nbqlaohua\app_state.o: ../Drivers/STM32F1xx_HAL_Driver/Inc/stm32f1xx_hal_dma_ex.h
nbqlaohua\app_state.o: ../Drivers/STM32F1xx_HAL_Driver/Inc/stm32f1xx_hal_can.h
nbqlaohua\app_state.o: ../Drivers/STM32F1xx_HAL_Driver/Inc/stm32f1xx_hal_cortex.h
nbqlaohua\app_state.o: ../Drivers/STM32F1xx_HAL_Driver/Inc/stm32f1xx_hal_adc.h
nbqlaohua\app_state.o: ../Drivers/STM32F1xx_HAL_Driver/Inc/stm32f1xx_hal_adc_ex.h
nbqlaohua\app_state.o: ../Drivers/STM32F1xx_HAL_Driver/Inc/stm32f1xx_hal_flash.h
nbqlaohua\app_state.o: ../Drivers/STM32F1xx_HAL_Driver/Inc/stm32f1xx_hal_flash_ex.h
nbqlaohua\app_state.o: ../Drivers/STM32F1xx_HAL_Driver/Inc/stm32f1xx_hal_pwr.h
nbqlaohua\app_state.o: ../Drivers/STM32F1xx_HAL_Driver/Inc/stm32f1xx_hal_tim.h
nbqlaohua\app_state.o: ../Drivers/STM32F1xx_HAL_Driver/Inc/stm32f1xx_hal_tim_ex.h
nbqlaohua\app_state.o: ../Drivers/STM32F1xx_HAL_Driver/Inc/stm32f1xx_hal_uart.h
nbqlaohua\app_state.o: ../Drivers/STM32F1xx_HAL_Driver/Inc/stm32f1xx_hal_usart.h
nbqlaohua\app_state.o: ../Core/Inc/gpio.h
nbqlaohua\app_state.o: ../HardWare/Delay/Delay.h
nbqlaohua\app_state.o: ../HardWare/Sys/sys.h
nbqlaohua\app_state.o: ..\HardWare\APP\APP_State.h
nbqlaohua\app_state.o: C:\Keil_v5\ARM\ARMCC\Bin\..\include\stdbool.h
nbqlaohua\app_state.o: C:\Keil_v5\ARM\ARMCC\Bin\..\include\stdlib.h

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@ -2,6 +2,19 @@ nbqlaohua\delay.o: ..\HardWare\Delay\Delay.c
nbqlaohua\delay.o: ..\HardWare\Delay\Delay.h
nbqlaohua\delay.o: ../HardWare/Sys/sys.h
nbqlaohua\delay.o: C:\Keil_v5\ARM\ARMCC\Bin\..\include\stdint.h
nbqlaohua\delay.o: ../Middlewares/Third_Party/FreeRTOS/Source/include/FreeRTOS.h
nbqlaohua\delay.o: C:\Keil_v5\ARM\ARMCC\Bin\..\include\stddef.h
nbqlaohua\delay.o: ../Core/Inc/FreeRTOSConfig.h
nbqlaohua\delay.o: ../Middlewares/Third_Party/FreeRTOS/Source/include/projdefs.h
nbqlaohua\delay.o: ../Middlewares/Third_Party/FreeRTOS/Source/include/portable.h
nbqlaohua\delay.o: ../Middlewares/Third_Party/FreeRTOS/Source/include/deprecated_definitions.h
nbqlaohua\delay.o: ../Middlewares/Third_Party/FreeRTOS/Source/portable/RVDS/ARM_CM3/portmacro.h
nbqlaohua\delay.o: ../Middlewares/Third_Party/FreeRTOS/Source/include/mpu_wrappers.h
nbqlaohua\delay.o: ../Middlewares/Third_Party/FreeRTOS/Source/include/task.h
nbqlaohua\delay.o: ../Middlewares/Third_Party/FreeRTOS/Source/include/list.h
nbqlaohua\delay.o: ../Middlewares/Third_Party/FreeRTOS/Source/include/semphr.h
nbqlaohua\delay.o: ../Middlewares/Third_Party/FreeRTOS/Source/include/queue.h
nbqlaohua\delay.o: ../Core/Inc/main.h
nbqlaohua\delay.o: ../Drivers/STM32F1xx_HAL_Driver/Inc/stm32f1xx_hal.h
nbqlaohua\delay.o: ../Core/Inc/stm32f1xx_hal_conf.h
nbqlaohua\delay.o: ../Drivers/STM32F1xx_HAL_Driver/Inc/stm32f1xx_hal_rcc.h
@ -15,7 +28,6 @@ nbqlaohua\delay.o: ../Drivers/CMSIS/Include/cmsis_armcc.h
nbqlaohua\delay.o: ../Drivers/CMSIS/Device/ST/STM32F1xx/Include/system_stm32f1xx.h
nbqlaohua\delay.o: ../Drivers/STM32F1xx_HAL_Driver/Inc/stm32f1xx_hal.h
nbqlaohua\delay.o: ../Drivers/STM32F1xx_HAL_Driver/Inc/Legacy/stm32_hal_legacy.h
nbqlaohua\delay.o: C:\Keil_v5\ARM\ARMCC\Bin\..\include\stddef.h
nbqlaohua\delay.o: ../Drivers/STM32F1xx_HAL_Driver/Inc/stm32f1xx_hal_rcc_ex.h
nbqlaohua\delay.o: ../Drivers/STM32F1xx_HAL_Driver/Inc/stm32f1xx_hal_gpio.h
nbqlaohua\delay.o: ../Drivers/STM32F1xx_HAL_Driver/Inc/stm32f1xx_hal_gpio_ex.h
@ -33,3 +45,5 @@ nbqlaohua\delay.o: ../Drivers/STM32F1xx_HAL_Driver/Inc/stm32f1xx_hal_tim.h
nbqlaohua\delay.o: ../Drivers/STM32F1xx_HAL_Driver/Inc/stm32f1xx_hal_tim_ex.h
nbqlaohua\delay.o: ../Drivers/STM32F1xx_HAL_Driver/Inc/stm32f1xx_hal_uart.h
nbqlaohua\delay.o: ../Drivers/STM32F1xx_HAL_Driver/Inc/stm32f1xx_hal_usart.h
nbqlaohua\delay.o: ../Core/Inc/gpio.h
nbqlaohua\delay.o: ../HardWare/Delay/Delay.h

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@ -43,8 +43,12 @@ nbqlaohua\freertos.o: ../Drivers/STM32F1xx_HAL_Driver/Inc/stm32f1xx_hal_uart.h
nbqlaohua\freertos.o: ../Drivers/STM32F1xx_HAL_Driver/Inc/stm32f1xx_hal_usart.h
nbqlaohua\freertos.o: ../Middlewares/Third_Party/FreeRTOS/Source/CMSIS_RTOS_V2/cmsis_os.h
nbqlaohua\freertos.o: ../Middlewares/Third_Party/FreeRTOS/Source/CMSIS_RTOS_V2/cmsis_os2.h
nbqlaohua\freertos.o: ../Middlewares/Third_Party/FreeRTOS/Source/include/semphr.h
nbqlaohua\freertos.o: ../Middlewares/Third_Party/FreeRTOS/Source/include/queue.h
nbqlaohua\freertos.o: ../HardWare/Delay/Delay.h
nbqlaohua\freertos.o: ../HardWare/Sys/sys.h
nbqlaohua\freertos.o: ../Core/Inc/gpio.h
nbqlaohua\freertos.o: ../HardWare/Delay/Delay.h
nbqlaohua\freertos.o: ../HardWare/LED/led.h
nbqlaohua\freertos.o: ../HardWare/USART/uart_device.h
nbqlaohua\freertos.o: C:\Keil_v5\ARM\ARMCC\Bin\..\include\stdio.h
@ -58,8 +62,6 @@ nbqlaohua\freertos.o: ../HardWare/STM32MB/port/MB_port.h
nbqlaohua\freertos.o: ../Middlewares/Third_Party/FreeRTOS/Source/include/event_groups.h
nbqlaohua\freertos.o: ../Middlewares/Third_Party/FreeRTOS/Source/include/timers.h
nbqlaohua\freertos.o: ../HardWare/STM32MB/modbus/include/mbconfig.h
nbqlaohua\freertos.o: ../Middlewares/Third_Party/FreeRTOS/Source/include/semphr.h
nbqlaohua\freertos.o: ../Middlewares/Third_Party/FreeRTOS/Source/include/queue.h
nbqlaohua\freertos.o: C:\Keil_v5\ARM\ARMCC\Bin\..\include\assert.h
nbqlaohua\freertos.o: C:\Keil_v5\ARM\ARMCC\Bin\..\include\inttypes.h
nbqlaohua\freertos.o: C:\Keil_v5\ARM\ARMCC\Bin\..\include\stdarg.h

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