Rajit Singh / Mbed OS Modbus

Port of the FreeModbus Libary for mbed, copied from https://developer.mbed.org/users/cam/code/Modbus/ and upgraded to mbed 5

Dependents:   NUCLEO-F401-printf

mbfuncother.cpp@1:3e360cf155b6, 2017-08-16 (annotated)

Committer:
Rajit Singh
Date:
Wed Aug 16 17:31:26 2017 +0100
Revision:
1:3e360cf155b6
Parent:
0:9db3bed8fffd 
Remove main.cpp

Who changed what in which revision?

UserRevisionLine numberNew contents of line
Rajit Singh 0:9db3bed8fffd 1 /*
Rajit Singh 0:9db3bed8fffd 2 * FreeModbus Libary: A portable Modbus implementation for Modbus ASCII/RTU.
Rajit Singh 0:9db3bed8fffd 3 * Copyright (c) 2006 Christian Walter <wolti@sil.at>
Rajit Singh 0:9db3bed8fffd 4 * All rights reserved.
Rajit Singh 0:9db3bed8fffd 5 *
Rajit Singh 0:9db3bed8fffd 6 * Redistribution and use in source and binary forms, with or without
Rajit Singh 0:9db3bed8fffd 7 * modification, are permitted provided that the following conditions
Rajit Singh 0:9db3bed8fffd 8 * are met:
Rajit Singh 0:9db3bed8fffd 9 * 1. Redistributions of source code must retain the above copyright
Rajit Singh 0:9db3bed8fffd 10 * notice, this list of conditions and the following disclaimer.
Rajit Singh 0:9db3bed8fffd 11 * 2. Redistributions in binary form must reproduce the above copyright
Rajit Singh 0:9db3bed8fffd 12 * notice, this list of conditions and the following disclaimer in the
Rajit Singh 0:9db3bed8fffd 13 * documentation and/or other materials provided with the distribution.
Rajit Singh 0:9db3bed8fffd 14 * 3. The name of the author may not be used to endorse or promote products
Rajit Singh 0:9db3bed8fffd 15 * derived from this software without specific prior written permission.
Rajit Singh 0:9db3bed8fffd 16 *
Rajit Singh 0:9db3bed8fffd 17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
Rajit Singh 0:9db3bed8fffd 18 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
Rajit Singh 0:9db3bed8fffd 19 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
Rajit Singh 0:9db3bed8fffd 20 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
Rajit Singh 0:9db3bed8fffd 21 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
Rajit Singh 0:9db3bed8fffd 22 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
Rajit Singh 0:9db3bed8fffd 23 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
Rajit Singh 0:9db3bed8fffd 24 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
Rajit Singh 0:9db3bed8fffd 25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
Rajit Singh 0:9db3bed8fffd 26 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
Rajit Singh 0:9db3bed8fffd 27 *
Rajit Singh 0:9db3bed8fffd 28 * File: $Id: mbfuncother.c,v 1.8 2006/12/07 22:10:34 wolti Exp $
Rajit Singh 0:9db3bed8fffd 29 */
Rajit Singh 0:9db3bed8fffd 30
Rajit Singh 0:9db3bed8fffd 31 /* ----------------------- System includes ----------------------------------*/
Rajit Singh 0:9db3bed8fffd 32 #include "stdlib.h"
Rajit Singh 0:9db3bed8fffd 33 #include "string.h"
Rajit Singh 0:9db3bed8fffd 34
Rajit Singh 0:9db3bed8fffd 35 /* ----------------------- Platform includes --------------------------------*/
Rajit Singh 0:9db3bed8fffd 36 #include "port.h"
Rajit Singh 0:9db3bed8fffd 37
Rajit Singh 0:9db3bed8fffd 38 /* ----------------------- Modbus includes ----------------------------------*/
Rajit Singh 0:9db3bed8fffd 39 #include "mb.h"
Rajit Singh 0:9db3bed8fffd 40 #include "mbframe.h"
Rajit Singh 0:9db3bed8fffd 41 #include "mbproto.h"
Rajit Singh 0:9db3bed8fffd 42 #include "mbconfig.h"
Rajit Singh 0:9db3bed8fffd 43
Rajit Singh 0:9db3bed8fffd 44 #if MB_FUNC_OTHER_REP_SLAVEID_ENABLED > 0
Rajit Singh 0:9db3bed8fffd 45
Rajit Singh 0:9db3bed8fffd 46 /* ----------------------- Static variables ---------------------------------*/
Rajit Singh 0:9db3bed8fffd 47 static UCHAR ucMBSlaveID[MB_FUNC_OTHER_REP_SLAVEID_BUF];
Rajit Singh 0:9db3bed8fffd 48 static USHORT usMBSlaveIDLen;
Rajit Singh 0:9db3bed8fffd 49
Rajit Singh 0:9db3bed8fffd 50 /* ----------------------- Start implementation -----------------------------*/
Rajit Singh 0:9db3bed8fffd 51
Rajit Singh 0:9db3bed8fffd 52 eMBErrorCode
Rajit Singh 0:9db3bed8fffd 53 eMBSetSlaveID( UCHAR ucSlaveID, BOOL xIsRunning,
Rajit Singh 0:9db3bed8fffd 54 UCHAR const *pucAdditional, USHORT usAdditionalLen )
Rajit Singh 0:9db3bed8fffd 55 {
Rajit Singh 0:9db3bed8fffd 56 eMBErrorCode eStatus = MB_ENOERR;
Rajit Singh 0:9db3bed8fffd 57
Rajit Singh 0:9db3bed8fffd 58 /* the first byte and second byte in the buffer is reserved for
Rajit Singh 0:9db3bed8fffd 59 * the parameter ucSlaveID and the running flag. The rest of
Rajit Singh 0:9db3bed8fffd 60 * the buffer is available for additional data. */
Rajit Singh 0:9db3bed8fffd 61 if( usAdditionalLen + 2 < MB_FUNC_OTHER_REP_SLAVEID_BUF )
Rajit Singh 0:9db3bed8fffd 62 {
Rajit Singh 0:9db3bed8fffd 63 usMBSlaveIDLen = 0;
Rajit Singh 0:9db3bed8fffd 64 ucMBSlaveID[usMBSlaveIDLen++] = ucSlaveID;
Rajit Singh 0:9db3bed8fffd 65 ucMBSlaveID[usMBSlaveIDLen++] = ( UCHAR )( xIsRunning ? 0xFF : 0x00 );
Rajit Singh 0:9db3bed8fffd 66 if( usAdditionalLen > 0 )
Rajit Singh 0:9db3bed8fffd 67 {
Rajit Singh 0:9db3bed8fffd 68 memcpy( &ucMBSlaveID[usMBSlaveIDLen], pucAdditional,
Rajit Singh 0:9db3bed8fffd 69 ( size_t )usAdditionalLen );
Rajit Singh 0:9db3bed8fffd 70 usMBSlaveIDLen += usAdditionalLen;
Rajit Singh 0:9db3bed8fffd 71 }
Rajit Singh 0:9db3bed8fffd 72 }
Rajit Singh 0:9db3bed8fffd 73 else
Rajit Singh 0:9db3bed8fffd 74 {
Rajit Singh 0:9db3bed8fffd 75 eStatus = MB_ENORES;
Rajit Singh 0:9db3bed8fffd 76 }
Rajit Singh 0:9db3bed8fffd 77 return eStatus;
Rajit Singh 0:9db3bed8fffd 78 }
Rajit Singh 0:9db3bed8fffd 79
Rajit Singh 0:9db3bed8fffd 80 eMBException
Rajit Singh 0:9db3bed8fffd 81 eMBFuncReportSlaveID( UCHAR * pucFrame, USHORT * usLen )
Rajit Singh 0:9db3bed8fffd 82 {
Rajit Singh 0:9db3bed8fffd 83 memcpy( &pucFrame[MB_PDU_DATA_OFF], &ucMBSlaveID[0], ( size_t )usMBSlaveIDLen );
Rajit Singh 0:9db3bed8fffd 84 *usLen = ( USHORT )( MB_PDU_DATA_OFF + usMBSlaveIDLen );
Rajit Singh 0:9db3bed8fffd 85 return MB_EX_NONE;
Rajit Singh 0:9db3bed8fffd 86 }
Rajit Singh 0:9db3bed8fffd 87
Rajit Singh 0:9db3bed8fffd 88 #endif