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			Apply the pre-commit hook whitespace fixes to all files in the repo. (Line endings, blank lines at end of file, trailing whitespace)
		
			
				
	
	
		
			455 lines
		
	
	
		
			18 KiB
		
	
	
	
		
			C
		
	
	
	
	
	
			
		
		
	
	
			455 lines
		
	
	
		
			18 KiB
		
	
	
	
		
			C
		
	
	
	
	
	
| /*
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|  * FreeModbus Libary: A portable Modbus implementation for Modbus ASCII/RTU.
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|  * Copyright (C) 2013 Armink <armink.ztl@gmail.com>
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|  * All rights reserved.
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|  *
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|  * Redistribution and use in source and binary forms, with or without
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|  * modification, are permitted provided that the following conditions
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|  * are met:
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|  * 1. Redistributions of source code must retain the above copyright
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|  *    notice, this list of conditions and the following disclaimer.
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|  * 2. Redistributions in binary form must reproduce the above copyright
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|  *    notice, this list of conditions and the following disclaimer in the
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|  *    documentation and/or other materials provided with the distribution.
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|  * 3. The name of the author may not be used to endorse or promote products
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|  *    derived from this software without specific prior written permission.
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|  *
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|  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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|  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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|  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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|  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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|  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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|  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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|  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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|  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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|  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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|  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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|  *
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|  * File: $Id: mbfuncholding_m.c,v 1.60 2013/09/02 14:13:40 Armink Add Master Functions  Exp $
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|  */
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| 
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| /* ----------------------- System includes ----------------------------------*/
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| #include "stdlib.h"
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| #include "string.h"
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| 
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| /* ----------------------- Platform includes --------------------------------*/
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| #include "port.h"
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| 
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| /* ----------------------- Modbus includes ----------------------------------*/
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| //#include "mb.h"
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| #include "mb_m.h"
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| #include "mbframe.h"
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| #include "mbproto.h"
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| #include "mbconfig.h"
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| 
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| /* ----------------------- Defines ------------------------------------------*/
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| #define MB_PDU_REQ_READ_ADDR_OFF                ( MB_PDU_DATA_OFF + 0 )
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| #define MB_PDU_REQ_READ_REGCNT_OFF              ( MB_PDU_DATA_OFF + 2 )
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| #define MB_PDU_REQ_READ_SIZE                    ( 4 )
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| #define MB_PDU_FUNC_READ_REGCNT_MAX             ( 0x007D )
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| #define MB_PDU_FUNC_READ_BYTECNT_OFF            ( MB_PDU_DATA_OFF + 0 )
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| #define MB_PDU_FUNC_READ_VALUES_OFF             ( MB_PDU_DATA_OFF + 1 )
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| #define MB_PDU_FUNC_READ_SIZE_MIN               ( 1 )
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| 
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| #define MB_PDU_REQ_WRITE_ADDR_OFF               ( MB_PDU_DATA_OFF + 0)
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| #define MB_PDU_REQ_WRITE_VALUE_OFF              ( MB_PDU_DATA_OFF + 2 )
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| #define MB_PDU_REQ_WRITE_SIZE                   ( 4 )
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| #define MB_PDU_FUNC_WRITE_ADDR_OFF              ( MB_PDU_DATA_OFF + 0)
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| #define MB_PDU_FUNC_WRITE_VALUE_OFF             ( MB_PDU_DATA_OFF + 2 )
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| #define MB_PDU_FUNC_WRITE_SIZE                  ( 4 )
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| 
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| #define MB_PDU_REQ_WRITE_MUL_ADDR_OFF           ( MB_PDU_DATA_OFF + 0 )
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| #define MB_PDU_REQ_WRITE_MUL_REGCNT_OFF         ( MB_PDU_DATA_OFF + 2 )
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| #define MB_PDU_REQ_WRITE_MUL_BYTECNT_OFF        ( MB_PDU_DATA_OFF + 4 )
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| #define MB_PDU_REQ_WRITE_MUL_VALUES_OFF         ( MB_PDU_DATA_OFF + 5 )
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| #define MB_PDU_REQ_WRITE_MUL_SIZE_MIN           ( 5 )
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| #define MB_PDU_REQ_WRITE_MUL_REGCNT_MAX         ( 0x0078 )
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| #define MB_PDU_FUNC_WRITE_MUL_ADDR_OFF          ( MB_PDU_DATA_OFF + 0 )
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| #define MB_PDU_FUNC_WRITE_MUL_REGCNT_OFF        ( MB_PDU_DATA_OFF + 2 )
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| #define MB_PDU_FUNC_WRITE_MUL_SIZE              ( 4 )
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| 
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| #define MB_PDU_REQ_READWRITE_READ_ADDR_OFF      ( MB_PDU_DATA_OFF + 0 )
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| #define MB_PDU_REQ_READWRITE_READ_REGCNT_OFF    ( MB_PDU_DATA_OFF + 2 )
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| #define MB_PDU_REQ_READWRITE_WRITE_ADDR_OFF     ( MB_PDU_DATA_OFF + 4 )
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| #define MB_PDU_REQ_READWRITE_WRITE_REGCNT_OFF   ( MB_PDU_DATA_OFF + 6 )
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| #define MB_PDU_REQ_READWRITE_WRITE_BYTECNT_OFF  ( MB_PDU_DATA_OFF + 8 )
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| #define MB_PDU_REQ_READWRITE_WRITE_VALUES_OFF   ( MB_PDU_DATA_OFF + 9 )
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| #define MB_PDU_REQ_READWRITE_SIZE_MIN           ( 9 )
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| #define MB_PDU_FUNC_READWRITE_READ_BYTECNT_OFF  ( MB_PDU_DATA_OFF + 0 )
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| #define MB_PDU_FUNC_READWRITE_READ_VALUES_OFF   ( MB_PDU_DATA_OFF + 1 )
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| #define MB_PDU_FUNC_READWRITE_SIZE_MIN          ( 1 )
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| 
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| /* ----------------------- Static functions ---------------------------------*/
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| eMBException    prveMBError2Exception( eMBErrorCode eErrorCode );
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| 
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| /* ----------------------- Start implementation -----------------------------*/
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| #if MB_MASTER_RTU_ENABLED || MB_MASTER_ASCII_ENABLED || MB_MASTER_TCP_ENABLED
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| 
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| #if MB_FUNC_WRITE_HOLDING_ENABLED
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| 
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| /**
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|  * This function will request write holding register.
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|  *
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|  * @param ucSndAddr salve address
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|  * @param usRegAddr register start address
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|  * @param usRegData register data to be written
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|  * @param lTimeOut timeout (-1 will waiting forever)
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|  *
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|  * @return error code
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|  */
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| eMBMasterReqErrCode
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| eMBMasterReqWriteHoldingRegister( UCHAR ucSndAddr, USHORT usRegAddr, USHORT usRegData, LONG lTimeOut )
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| {
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|     UCHAR                 *ucMBFrame;
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|     eMBMasterReqErrCode    eErrStatus = MB_MRE_NO_ERR;
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| 
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|     if ( ucSndAddr > MB_MASTER_TOTAL_SLAVE_NUM ) eErrStatus = MB_MRE_ILL_ARG;
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|     else if ( xMBMasterRunResTake( lTimeOut ) == FALSE ) eErrStatus = MB_MRE_MASTER_BUSY;
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|     else
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|     {
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|         vMBMasterGetPDUSndBuf(&ucMBFrame);
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|         vMBMasterSetDestAddress(ucSndAddr);
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|         ucMBFrame[MB_PDU_FUNC_OFF]                = MB_FUNC_WRITE_REGISTER;
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|         ucMBFrame[MB_PDU_REQ_WRITE_ADDR_OFF]      = usRegAddr >> 8;
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|         ucMBFrame[MB_PDU_REQ_WRITE_ADDR_OFF + 1]  = usRegAddr;
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|         ucMBFrame[MB_PDU_REQ_WRITE_VALUE_OFF]     = usRegData >> 8;
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|         ucMBFrame[MB_PDU_REQ_WRITE_VALUE_OFF + 1] = usRegData ;
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|         vMBMasterSetPDUSndLength( MB_PDU_SIZE_MIN + MB_PDU_REQ_WRITE_SIZE );
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|         ( void ) xMBMasterPortEventPost( EV_MASTER_FRAME_TRANSMIT );
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|         eErrStatus = eMBMasterWaitRequestFinish( );
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|     }
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|     return eErrStatus;
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| }
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| 
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| eMBException
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| eMBMasterFuncWriteHoldingRegister( UCHAR * pucFrame, USHORT * usLen )
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| {
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|     USHORT          usRegAddress;
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|     eMBException    eStatus = MB_EX_NONE;
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|     eMBErrorCode    eRegStatus;
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| 
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|     if( *usLen == ( MB_PDU_SIZE_MIN + MB_PDU_FUNC_WRITE_SIZE ) )
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|     {
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|         usRegAddress = ( USHORT )( pucFrame[MB_PDU_FUNC_WRITE_ADDR_OFF] << 8 );
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|         usRegAddress |= ( USHORT )( pucFrame[MB_PDU_FUNC_WRITE_ADDR_OFF + 1] );
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|         usRegAddress++;
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| 
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|         /* Make callback to update the value. */
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|         eRegStatus = eMBMasterRegHoldingCB( &pucFrame[MB_PDU_FUNC_WRITE_VALUE_OFF],
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|                                       usRegAddress, 1, MB_REG_WRITE );
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| 
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|         /* If an error occured convert it into a Modbus exception. */
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|         if( eRegStatus != MB_ENOERR )
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|         {
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|             eStatus = prveMBError2Exception( eRegStatus );
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|         }
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|     }
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|     else
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|     {
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|         /* Can't be a valid request because the length is incorrect. */
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|         eStatus = MB_EX_ILLEGAL_DATA_VALUE;
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|     }
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|     return eStatus;
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| }
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| #endif
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| 
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| #if MB_FUNC_WRITE_MULTIPLE_HOLDING_ENABLED > 0
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| 
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| /**
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|  * This function will request write multiple holding register.
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|  *
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|  * @param ucSndAddr salve address
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|  * @param usRegAddr register start address
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|  * @param usNRegs register total number
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|  * @param pusDataBuffer data to be written
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|  * @param lTimeOut timeout (-1 will waiting forever)
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|  *
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|  * @return error code
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|  */
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| eMBMasterReqErrCode
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| eMBMasterReqWriteMultipleHoldingRegister( UCHAR ucSndAddr,
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|         USHORT usRegAddr, USHORT usNRegs, USHORT * pusDataBuffer, LONG lTimeOut )
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| {
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|     UCHAR                 *ucMBFrame;
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|     USHORT                 usRegIndex = 0;
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|     eMBMasterReqErrCode    eErrStatus = MB_MRE_NO_ERR;
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| 
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|     if ( ucSndAddr > MB_MASTER_TOTAL_SLAVE_NUM ) eErrStatus = MB_MRE_ILL_ARG;
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|     else if ( xMBMasterRunResTake( lTimeOut ) == FALSE ) eErrStatus = MB_MRE_MASTER_BUSY;
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|     else
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|     {
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|         vMBMasterGetPDUSndBuf(&ucMBFrame);
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|         vMBMasterSetDestAddress(ucSndAddr);
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|         ucMBFrame[MB_PDU_FUNC_OFF]                     = MB_FUNC_WRITE_MULTIPLE_REGISTERS;
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|         ucMBFrame[MB_PDU_REQ_WRITE_MUL_ADDR_OFF]       = usRegAddr >> 8;
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|         ucMBFrame[MB_PDU_REQ_WRITE_MUL_ADDR_OFF + 1]   = usRegAddr;
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|         ucMBFrame[MB_PDU_REQ_WRITE_MUL_REGCNT_OFF]     = usNRegs >> 8;
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|         ucMBFrame[MB_PDU_REQ_WRITE_MUL_REGCNT_OFF + 1] = usNRegs ;
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|         ucMBFrame[MB_PDU_REQ_WRITE_MUL_BYTECNT_OFF]    = usNRegs * 2;
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|         ucMBFrame += MB_PDU_REQ_WRITE_MUL_VALUES_OFF;
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|         while( usNRegs > usRegIndex)
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|         {
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|             *ucMBFrame++ = pusDataBuffer[usRegIndex] >> 8;
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|             *ucMBFrame++ = pusDataBuffer[usRegIndex++] ;
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|         }
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|         vMBMasterSetPDUSndLength( MB_PDU_SIZE_MIN + MB_PDU_REQ_WRITE_MUL_SIZE_MIN + 2*usNRegs );
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|         ( void ) xMBMasterPortEventPost( EV_MASTER_FRAME_TRANSMIT );
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|         eErrStatus = eMBMasterWaitRequestFinish( );
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|     }
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|     return eErrStatus;
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| }
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| 
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| eMBException
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| eMBMasterFuncWriteMultipleHoldingRegister( UCHAR * pucFrame, USHORT * usLen )
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| {
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|     UCHAR          *ucMBFrame;
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|     USHORT          usRegAddress;
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|     USHORT          usRegCount;
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|     UCHAR           ucRegByteCount;
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| 
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|     eMBException    eStatus = MB_EX_NONE;
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|     eMBErrorCode    eRegStatus;
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| 
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|     /* If this request is broadcast, the *usLen is not need check. */
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|     if( ( *usLen == MB_PDU_SIZE_MIN + MB_PDU_FUNC_WRITE_MUL_SIZE ) || xMBMasterRequestIsBroadcast() )
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|     {
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|         vMBMasterGetPDUSndBuf(&ucMBFrame);
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|         usRegAddress = ( USHORT )( ucMBFrame[MB_PDU_REQ_WRITE_MUL_ADDR_OFF] << 8 );
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|         usRegAddress |= ( USHORT )( ucMBFrame[MB_PDU_REQ_WRITE_MUL_ADDR_OFF + 1] );
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|         usRegAddress++;
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| 
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|         usRegCount = ( USHORT )( ucMBFrame[MB_PDU_REQ_WRITE_MUL_REGCNT_OFF] << 8 );
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|         usRegCount |= ( USHORT )( ucMBFrame[MB_PDU_REQ_WRITE_MUL_REGCNT_OFF + 1] );
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| 
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|         ucRegByteCount = ucMBFrame[MB_PDU_REQ_WRITE_MUL_BYTECNT_OFF];
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| 
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|         if( ucRegByteCount == 2 * usRegCount )
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|         {
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|             /* Make callback to update the register values. */
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|             eRegStatus = eMBMasterRegHoldingCB( &ucMBFrame[MB_PDU_REQ_WRITE_MUL_VALUES_OFF],
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|                                  usRegAddress, usRegCount, MB_REG_WRITE );
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| 
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|             /* If an error occured convert it into a Modbus exception. */
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|             if( eRegStatus != MB_ENOERR )
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|             {
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|                 eStatus = prveMBError2Exception( eRegStatus );
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|             }
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|         }
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|         else
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|         {
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|             eStatus = MB_EX_ILLEGAL_DATA_VALUE;
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|         }
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|     }
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|     else
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|     {
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|         /* Can't be a valid request because the length is incorrect. */
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|         eStatus = MB_EX_ILLEGAL_DATA_VALUE;
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|     }
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|     return eStatus;
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| }
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| #endif
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| 
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| #if MB_FUNC_READ_HOLDING_ENABLED > 0
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| 
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| /**
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|  * This function will request read holding register.
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|  *
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|  * @param ucSndAddr salve address
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|  * @param usRegAddr register start address
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|  * @param usNRegs register total number
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|  * @param lTimeOut timeout (-1 will waiting forever)
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|  *
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|  * @return error code
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|  */
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| eMBMasterReqErrCode
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| eMBMasterReqReadHoldingRegister( UCHAR ucSndAddr, USHORT usRegAddr, USHORT usNRegs, LONG lTimeOut )
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| {
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|     UCHAR                 *ucMBFrame;
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|     eMBMasterReqErrCode    eErrStatus = MB_MRE_NO_ERR;
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| 
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|     if ( ucSndAddr > MB_MASTER_TOTAL_SLAVE_NUM ) eErrStatus = MB_MRE_ILL_ARG;
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|     else if ( xMBMasterRunResTake( lTimeOut ) == FALSE ) eErrStatus = MB_MRE_MASTER_BUSY;
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|     else
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|     {
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|         vMBMasterGetPDUSndBuf(&ucMBFrame);
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|         vMBMasterSetDestAddress(ucSndAddr);
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|         ucMBFrame[MB_PDU_FUNC_OFF]                = MB_FUNC_READ_HOLDING_REGISTER;
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|         ucMBFrame[MB_PDU_REQ_READ_ADDR_OFF]       = usRegAddr >> 8;
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|         ucMBFrame[MB_PDU_REQ_READ_ADDR_OFF + 1]   = usRegAddr;
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|         ucMBFrame[MB_PDU_REQ_READ_REGCNT_OFF]     = usNRegs >> 8;
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|         ucMBFrame[MB_PDU_REQ_READ_REGCNT_OFF + 1] = usNRegs;
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|         vMBMasterSetPDUSndLength( MB_PDU_SIZE_MIN + MB_PDU_REQ_READ_SIZE );
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|         ( void ) xMBMasterPortEventPost( EV_MASTER_FRAME_TRANSMIT );
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|         eErrStatus = eMBMasterWaitRequestFinish( );
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|     }
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|     return eErrStatus;
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| }
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| 
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| eMBException
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| eMBMasterFuncReadHoldingRegister( UCHAR * pucFrame, USHORT * usLen )
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| {
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|     UCHAR          *ucMBFrame;
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|     USHORT          usRegAddress;
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|     USHORT          usRegCount;
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| 
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|     eMBException    eStatus = MB_EX_NONE;
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|     eMBErrorCode    eRegStatus;
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| 
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|     /* If this request is broadcast, and it's read mode. This request don't need execute. */
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|     if ( xMBMasterRequestIsBroadcast() )
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|     {
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|         eStatus = MB_EX_NONE;
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|     }
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|     else if( *usLen >= MB_PDU_SIZE_MIN + MB_PDU_FUNC_READ_SIZE_MIN )
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|     {
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|         vMBMasterGetPDUSndBuf(&ucMBFrame);
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|         usRegAddress = ( USHORT )( ucMBFrame[MB_PDU_REQ_READ_ADDR_OFF] << 8 );
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|         usRegAddress |= ( USHORT )( ucMBFrame[MB_PDU_REQ_READ_ADDR_OFF + 1] );
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|         usRegAddress++;
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| 
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|         usRegCount = ( USHORT )( ucMBFrame[MB_PDU_REQ_READ_REGCNT_OFF] << 8 );
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|         usRegCount |= ( USHORT )( ucMBFrame[MB_PDU_REQ_READ_REGCNT_OFF + 1] );
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| 
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|         /* Check if the number of registers to read is valid. If not
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|          * return Modbus illegal data value exception.
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|          */
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|         if( ( usRegCount >= 1 ) && ( 2 * usRegCount == pucFrame[MB_PDU_FUNC_READ_BYTECNT_OFF] ) )
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|         {
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|             /* Make callback to fill the buffer. */
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|             eRegStatus = eMBMasterRegHoldingCB( &pucFrame[MB_PDU_FUNC_READ_VALUES_OFF], usRegAddress, usRegCount, MB_REG_READ );
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|             /* If an error occured convert it into a Modbus exception. */
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|             if( eRegStatus != MB_ENOERR )
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|             {
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|                 eStatus = prveMBError2Exception( eRegStatus );
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|             }
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|         }
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|         else
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|         {
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|             eStatus = MB_EX_ILLEGAL_DATA_VALUE;
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|         }
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|     }
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|     else
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|     {
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|         /* Can't be a valid request because the length is incorrect. */
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|         eStatus = MB_EX_ILLEGAL_DATA_VALUE;
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|     }
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|     return eStatus;
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| }
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| 
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| #endif
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| 
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| #if MB_FUNC_READWRITE_HOLDING_ENABLED > 0
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| 
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| /**
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|  * This function will request read and write holding register.
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|  *
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|  * @param ucSndAddr salve address
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|  * @param usReadRegAddr read register start address
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|  * @param usNReadRegs read register total number
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|  * @param pusDataBuffer data to be written
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|  * @param usWriteRegAddr write register start address
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|  * @param usNWriteRegs write register total number
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|  * @param lTimeOut timeout (-1 will waiting forever)
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|  *
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|  * @return error code
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|  */
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| eMBMasterReqErrCode
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| eMBMasterReqReadWriteMultipleHoldingRegister( UCHAR ucSndAddr,
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|         USHORT usReadRegAddr, USHORT usNReadRegs, USHORT * pusDataBuffer,
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|         USHORT usWriteRegAddr, USHORT usNWriteRegs, LONG lTimeOut )
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| {
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|     UCHAR                 *ucMBFrame;
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|     USHORT                 usRegIndex = 0;
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|     eMBMasterReqErrCode    eErrStatus = MB_MRE_NO_ERR;
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| 
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|     if ( ucSndAddr > MB_MASTER_TOTAL_SLAVE_NUM ) eErrStatus = MB_MRE_ILL_ARG;
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|     else if ( xMBMasterRunResTake( lTimeOut ) == FALSE ) eErrStatus = MB_MRE_MASTER_BUSY;
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|     else
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|     {
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|         vMBMasterGetPDUSndBuf(&ucMBFrame);
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|         vMBMasterSetDestAddress(ucSndAddr);
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|         ucMBFrame[MB_PDU_FUNC_OFF]                           = MB_FUNC_READWRITE_MULTIPLE_REGISTERS;
 | |
|         ucMBFrame[MB_PDU_REQ_READWRITE_READ_ADDR_OFF]        = usReadRegAddr >> 8;
 | |
|         ucMBFrame[MB_PDU_REQ_READWRITE_READ_ADDR_OFF + 1]    = usReadRegAddr;
 | |
|         ucMBFrame[MB_PDU_REQ_READWRITE_READ_REGCNT_OFF]      = usNReadRegs >> 8;
 | |
|         ucMBFrame[MB_PDU_REQ_READWRITE_READ_REGCNT_OFF + 1]  = usNReadRegs ;
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|         ucMBFrame[MB_PDU_REQ_READWRITE_WRITE_ADDR_OFF]       = usWriteRegAddr >> 8;
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|         ucMBFrame[MB_PDU_REQ_READWRITE_WRITE_ADDR_OFF + 1]   = usWriteRegAddr;
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|         ucMBFrame[MB_PDU_REQ_READWRITE_WRITE_REGCNT_OFF]     = usNWriteRegs >> 8;
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|         ucMBFrame[MB_PDU_REQ_READWRITE_WRITE_REGCNT_OFF + 1] = usNWriteRegs ;
 | |
|         ucMBFrame[MB_PDU_REQ_READWRITE_WRITE_BYTECNT_OFF]    = usNWriteRegs * 2;
 | |
|         ucMBFrame += MB_PDU_REQ_READWRITE_WRITE_VALUES_OFF;
 | |
|         while( usNWriteRegs > usRegIndex)
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|         {
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|             *ucMBFrame++ = pusDataBuffer[usRegIndex] >> 8;
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|             *ucMBFrame++ = pusDataBuffer[usRegIndex++] ;
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|         }
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|         vMBMasterSetPDUSndLength( MB_PDU_SIZE_MIN + MB_PDU_REQ_READWRITE_SIZE_MIN + 2*usNWriteRegs );
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|         ( void ) xMBMasterPortEventPost( EV_MASTER_FRAME_TRANSMIT );
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|         eErrStatus = eMBMasterWaitRequestFinish( );
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|     }
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|     return eErrStatus;
 | |
| }
 | |
| 
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| eMBException
 | |
| eMBMasterFuncReadWriteMultipleHoldingRegister( UCHAR * pucFrame, USHORT * usLen )
 | |
| {
 | |
|     USHORT          usRegReadAddress;
 | |
|     USHORT          usRegReadCount;
 | |
|     USHORT          usRegWriteAddress;
 | |
|     USHORT          usRegWriteCount;
 | |
|     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_READWRITE_SIZE_MIN )
 | |
|     {
 | |
|         vMBMasterGetPDUSndBuf(&ucMBFrame);
 | |
|         usRegReadAddress = ( USHORT )( ucMBFrame[MB_PDU_REQ_READWRITE_READ_ADDR_OFF] << 8U );
 | |
|         usRegReadAddress |= ( USHORT )( ucMBFrame[MB_PDU_REQ_READWRITE_READ_ADDR_OFF + 1] );
 | |
|         usRegReadAddress++;
 | |
| 
 | |
|         usRegReadCount = ( USHORT )( ucMBFrame[MB_PDU_REQ_READWRITE_READ_REGCNT_OFF] << 8U );
 | |
|         usRegReadCount |= ( USHORT )( ucMBFrame[MB_PDU_REQ_READWRITE_READ_REGCNT_OFF + 1] );
 | |
| 
 | |
|         usRegWriteAddress = ( USHORT )( ucMBFrame[MB_PDU_REQ_READWRITE_WRITE_ADDR_OFF] << 8U );
 | |
|         usRegWriteAddress |= ( USHORT )( ucMBFrame[MB_PDU_REQ_READWRITE_WRITE_ADDR_OFF + 1] );
 | |
|         usRegWriteAddress++;
 | |
| 
 | |
|         usRegWriteCount = ( USHORT )( ucMBFrame[MB_PDU_REQ_READWRITE_WRITE_REGCNT_OFF] << 8U );
 | |
|         usRegWriteCount |= ( USHORT )( ucMBFrame[MB_PDU_REQ_READWRITE_WRITE_REGCNT_OFF + 1] );
 | |
| 
 | |
|         if( ( 2 * usRegReadCount ) == pucFrame[MB_PDU_FUNC_READWRITE_READ_BYTECNT_OFF] )
 | |
|         {
 | |
|             /* Make callback to update the register values. */
 | |
|             eRegStatus = eMBMasterRegHoldingCB( &ucMBFrame[MB_PDU_REQ_READWRITE_WRITE_VALUES_OFF],
 | |
|                                            usRegWriteAddress, usRegWriteCount, MB_REG_WRITE );
 | |
| 
 | |
|             if( eRegStatus == MB_ENOERR )
 | |
|             {
 | |
|                 /* Make the read callback. */
 | |
|                 eRegStatus = eMBMasterRegHoldingCB(&pucFrame[MB_PDU_FUNC_READWRITE_READ_VALUES_OFF],
 | |
|                                               usRegReadAddress, usRegReadCount, MB_REG_READ);
 | |
|             }
 | |
|             if( eRegStatus != MB_ENOERR )
 | |
|             {
 | |
|                 eStatus = prveMBError2Exception( eRegStatus );
 | |
|             }
 | |
|         }
 | |
|         else
 | |
|         {
 | |
|             eStatus = MB_EX_ILLEGAL_DATA_VALUE;
 | |
|         }
 | |
|     }
 | |
|     return eStatus;
 | |
| }
 | |
| 
 | |
| #endif
 | |
| #endif // #if MB_MASTER_RTU_ENABLED || MB_MASTER_ASCII_ENABLED || MB_MASTER_TCP_ENABLED
 |