118 lines
3.2 KiB
C
118 lines
3.2 KiB
C
/*
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* FreeModbus Libary: MCF5235 Demo Application
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* Copyright (C) 2006 Christian Walter <wolti@sil.at>
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* Parts of crt0.S Copyright (c) 1995, 1996, 1998 Cygnus Support
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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*
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* File: $Id$
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*/
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#include "mcf5xxx.h"
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#include "mcf523x.h"
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#include "mb.h"
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#include "mbport.h"
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/* ----------------------- Modbus includes ----------------------------------*/
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#include "mb.h"
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#include "mbport.h"
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/* ----------------------- Defines ------------------------------------------*/
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#define REG_INPUT_START 1000
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#define REG_INPUT_NREGS 4
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/* ----------------------- Static variables ---------------------------------*/
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static USHORT usRegInputStart = REG_INPUT_START;
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static USHORT usRegInputBuf[REG_INPUT_NREGS];
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int
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main( int argc, char *argv[], char *envp[] )
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{
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//xMBPortSerialInit (9600UL, 8, MB_PAR_EVEN);
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//vMBPortSerialEnable (TRUE , FALSE);
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//xMBPortTimersInit( 200 );
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//vMBPortTimersEnable();
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//
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const UCHAR ucSlaveID[] = { 0xAA, 0xBB, 0xCC };
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eMBErrorCode eStatus;
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eStatus = eMBInit( MB_RTU, 0x0A, 0, 38400, MB_PAR_EVEN );
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eStatus = eMBSetSlaveID( 0x34, TRUE, ucSlaveID, 3 );
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/* Enable the Modbus Protocol Stack. */
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eStatus = eMBEnable( );
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for( ;; )
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{
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( void )eMBPoll( );
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/* Here we simply count the number of poll cycles. */
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usRegInputBuf[0]++;
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}
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return 0;
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}
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eMBErrorCode
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eMBRegInputCB( UCHAR * pucRegBuffer, USHORT usAddress, USHORT usNRegs )
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{
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eMBErrorCode eStatus = MB_ENOERR;
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int iRegIndex;
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if( ( usAddress >= REG_INPUT_START )
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&& ( usAddress + usNRegs <= REG_INPUT_START + REG_INPUT_NREGS ) )
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{
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iRegIndex = ( int )( usAddress - usRegInputStart );
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while( usNRegs > 0 )
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{
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*pucRegBuffer++ =
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( unsigned char )( usRegInputBuf[iRegIndex] >> 8 );
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*pucRegBuffer++ =
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( unsigned char )( usRegInputBuf[iRegIndex] & 0xFF );
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iRegIndex++;
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usNRegs--;
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}
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}
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else
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{
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eStatus = MB_ENOREG;
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}
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return eStatus;
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}
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eMBErrorCode
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eMBRegHoldingCB( UCHAR * pucRegBuffer, USHORT usAddress, USHORT usNRegs,
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eMBRegisterMode eMode )
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{
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return MB_ENOREG;
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}
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eMBErrorCode
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eMBRegCoilsCB( UCHAR * pucRegBuffer, USHORT usAddress, USHORT usNCoils,
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eMBRegisterMode eMode )
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{
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return MB_ENOREG;
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}
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eMBErrorCode
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eMBRegDiscreteCB( UCHAR * pucRegBuffer, USHORT usAddress, USHORT usNDiscrete )
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{
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return MB_ENOREG;
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}
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