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add freemodbus
git-svn-id: https://rt-thread.googlecode.com/svn/trunk@575 bbd45198-f89e-11dd-88c7-29a3b14d5316
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|
||||
Copyright (c) 2006 Christian Walter <wolti@sil.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.
|
||||
|
||||
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|
||||
/*
|
||||
* FreeModbus Libary: A portable Modbus implementation for Modbus ASCII/RTU.
|
||||
* Copyright (c) 2006 Christian Walter <wolti@sil.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_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 Christian Walter <wolti@sil.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 $
|
||||
*/
|
||||
@@ -0,0 +1,125 @@
|
||||
/*
|
||||
* FreeRTOS Modbus Libary: A Modbus serial implementation for FreeRTOS
|
||||
* Copyright (C) 2006 Christian Walter <wolti@sil.at>
|
||||
*
|
||||
* 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
|
||||
*/
|
||||
|
||||
|
||||
|
||||
/* ----------------------- 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_COILS_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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@@ -0,0 +1,122 @@
|
||||
/*
|
||||
* FreeModbus Libary: A portable Modbus implementation for Modbus ASCII/RTU.
|
||||
* Copyright (c) 2006 Christian Walter <wolti@sil.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
|
||||
@@ -0,0 +1,88 @@
|
||||
/*
|
||||
* FreeModbus Libary: A portable Modbus implementation for Modbus ASCII/RTU.
|
||||
* Copyright (c) 2006 Christian Walter <wolti@sil.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
|
||||
@@ -0,0 +1,141 @@
|
||||
/*
|
||||
* FreeModbus Libary: A portable Modbus implementation for Modbus ASCII/RTU.
|
||||
* Copyright (c) 2006 Christian Walter <wolti@sil.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( ucNBits <= 8 );
|
||||
assert( ( 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;
|
||||
}
|
||||
File diff suppressed because it is too large.
Load diff
@@ -0,0 +1,103 @@
|
||||
/*
|
||||
* FreeModbus Libary: A portable Modbus implementation for Modbus ASCII/RTU.
|
||||
* Copyright (c) 2006 Christian Walter <wolti@sil.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 $
|
||||
*/
|
||||
|
||||
#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 ASCII support is enabled. */
|
||||
#define MB_ASCII_ENABLED ( 1 )
|
||||
/*! \brief If Modbus RTU support is enabled. */
|
||||
#define MB_RTU_ENABLED ( 1 )
|
||||
/*! \brief If Modbus TCP support is enabled. */
|
||||
#define MB_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
|
||||
#endif
|
||||
@@ -0,0 +1,87 @@
|
||||
/*
|
||||
* FreeModbus Libary: A portable Modbus implementation for Modbus ASCII/RTU.
|
||||
* Copyright (c) 2006 Christian Walter <wolti@sil.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
|
||||
@@ -0,0 +1,80 @@
|
||||
/*
|
||||
* FreeModbus Libary: A portable Modbus implementation for Modbus ASCII/RTU.
|
||||
* Copyright (c) 2006 Christian Walter <wolti@sil.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
|
||||
@@ -0,0 +1,127 @@
|
||||
/*
|
||||
* FreeModbus Libary: A portable Modbus implementation for Modbus ASCII/RTU.
|
||||
* Copyright (c) 2006 Christian Walter <wolti@sil.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 $
|
||||
*/
|
||||
|
||||
#ifndef _MB_PORT_H
|
||||
#define _MB_PORT_H
|
||||
|
||||
#ifdef __cplusplus
|
||||
PR_BEGIN_EXTERN_C
|
||||
#endif
|
||||
|
||||
/* ----------------------- Type definitions ---------------------------------*/
|
||||
|
||||
typedef enum
|
||||
{
|
||||
EV_READY, /*!< Startup finished. */
|
||||
EV_FRAME_RECEIVED, /*!< Frame received. */
|
||||
EV_EXECUTE, /*!< Execute function. */
|
||||
EV_FRAME_SENT /*!< Frame sent. */
|
||||
} eMBEventType;
|
||||
|
||||
/*! \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 );
|
||||
|
||||
/* ----------------------- 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 );
|
||||
|
||||
/* ----------------------- Timers functions ---------------------------------*/
|
||||
BOOL xMBPortTimersInit( USHORT usTimeOut50us );
|
||||
|
||||
void xMBPortTimersClose( void );
|
||||
|
||||
INLINE void vMBPortTimersEnable( void );
|
||||
|
||||
INLINE void vMBPortTimersDisable( 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 );
|
||||
|
||||
/* ----------------------- 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
|
||||
@@ -0,0 +1,83 @@
|
||||
/*
|
||||
* FreeModbus Libary: A portable Modbus implementation for Modbus ASCII/RTU.
|
||||
* Copyright (c) 2006 Christian Walter <wolti@sil.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
|
||||
@@ -0,0 +1,108 @@
|
||||
/*
|
||||
* FreeModbus Libary: A portable Modbus implementation for Modbus ASCII/RTU.
|
||||
* Copyright (c) 2006 Christian Walter <wolti@sil.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
|
||||
File diff suppressed because it is too large.
Load diff
@@ -0,0 +1,98 @@
|
||||
/*
|
||||
* FreeModbus Libary: A portable Modbus implementation for Modbus ASCII/RTU.
|
||||
* Copyright (c) 2006 Christian Walter <wolti@sil.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 );
|
||||
}
|
||||
@@ -0,0 +1,36 @@
|
||||
/*
|
||||
* FreeModbus Libary: A portable Modbus implementation for Modbus ASCII/RTU.
|
||||
* Copyright (c) 2006 Christian Walter <wolti@sil.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
|
||||
File diff suppressed because it is too large.
Load diff
@@ -0,0 +1,51 @@
|
||||
/*
|
||||
* FreeModbus Libary: A portable Modbus implementation for Modbus ASCII/RTU.
|
||||
* Copyright (c) 2006 Christian Walter <wolti@sil.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 $
|
||||
*/
|
||||
|
||||
#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 );
|
||||
|
||||
#ifdef __cplusplus
|
||||
PR_END_EXTERN_C
|
||||
#endif
|
||||
#endif
|
||||
@@ -0,0 +1,158 @@
|
||||
/*
|
||||
* FreeModbus Libary: A portable Modbus implementation for Modbus ASCII/RTU.
|
||||
* Copyright (c) 2006 Christian Walter <wolti@sil.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_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
|
||||
@@ -0,0 +1,53 @@
|
||||
/*
|
||||
* FreeModbus Libary: A portable Modbus implementation for Modbus ASCII/RTU.
|
||||
* Copyright (c) 2006 Christian Walter <wolti@sil.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
|
||||
Reference in new issue
Block a user