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- #include "stdlib.h"
- #include "string.h"
- #include "port.h"
- #include "mb.h"
- #include "mbframe.h"
- #include "mbproto.h"
- #include "mbconfig.h"
- #define MB_PDU_FUNC_READ_ADDR_OFF ( MB_PDU_DATA_OFF + 0)
- #define MB_PDU_FUNC_READ_REGCNT_OFF ( MB_PDU_DATA_OFF + 2 )
- #define MB_PDU_FUNC_READ_SIZE ( 4 )
- #define MB_PDU_FUNC_READ_REGCNT_MAX ( 0x007D )
- #define MB_PDU_FUNC_WRITE_ADDR_OFF ( MB_PDU_DATA_OFF + 0)
- #define MB_PDU_FUNC_WRITE_VALUE_OFF ( MB_PDU_DATA_OFF + 2 )
- #define MB_PDU_FUNC_WRITE_SIZE ( 4 )
- #define MB_PDU_FUNC_WRITE_MUL_ADDR_OFF ( MB_PDU_DATA_OFF + 0 )
- #define MB_PDU_FUNC_WRITE_MUL_REGCNT_OFF ( MB_PDU_DATA_OFF + 2 )
- #define MB_PDU_FUNC_WRITE_MUL_BYTECNT_OFF ( MB_PDU_DATA_OFF + 4 )
- #define MB_PDU_FUNC_WRITE_MUL_VALUES_OFF ( MB_PDU_DATA_OFF + 5 )
- #define MB_PDU_FUNC_WRITE_MUL_SIZE_MIN ( 5 )
- #define MB_PDU_FUNC_WRITE_MUL_REGCNT_MAX ( 0x0078 )
- #define MB_PDU_FUNC_READWRITE_READ_ADDR_OFF ( MB_PDU_DATA_OFF + 0 )
- #define MB_PDU_FUNC_READWRITE_READ_REGCNT_OFF ( MB_PDU_DATA_OFF + 2 )
- #define MB_PDU_FUNC_READWRITE_WRITE_ADDR_OFF ( MB_PDU_DATA_OFF + 4 )
- #define MB_PDU_FUNC_READWRITE_WRITE_REGCNT_OFF ( MB_PDU_DATA_OFF + 6 )
- #define MB_PDU_FUNC_READWRITE_BYTECNT_OFF ( MB_PDU_DATA_OFF + 8 )
- #define MB_PDU_FUNC_READWRITE_WRITE_VALUES_OFF ( MB_PDU_DATA_OFF + 9 )
- #define MB_PDU_FUNC_READWRITE_SIZE_MIN ( 9 )
- eMBException prveMBError2Exception( eMBErrorCode eErrorCode );
- #if MB_FUNC_WRITE_HOLDING_ENABLED > 0
- eMBException
- eMBFuncWriteHoldingRegister( UCHAR * pucFrame, USHORT * usLen )
- {
- USHORT usRegAddress;
- eMBException eStatus = MB_EX_NONE;
- eMBErrorCode eRegStatus;
- if( *usLen == ( MB_PDU_FUNC_WRITE_SIZE + MB_PDU_SIZE_MIN ) )
- {
- usRegAddress = ( USHORT )( pucFrame[MB_PDU_FUNC_WRITE_ADDR_OFF] << 8 );
- usRegAddress |= ( USHORT )( pucFrame[MB_PDU_FUNC_WRITE_ADDR_OFF + 1] );
- usRegAddress++;
-
- eRegStatus = eMBRegHoldingCB( &pucFrame[MB_PDU_FUNC_WRITE_VALUE_OFF],
- usRegAddress, 1, MB_REG_WRITE );
-
- if( eRegStatus != MB_ENOERR )
- {
- eStatus = prveMBError2Exception( eRegStatus );
- }
- }
- else
- {
-
- eStatus = MB_EX_ILLEGAL_DATA_VALUE;
- }
- return eStatus;
- }
- #endif
- #if MB_FUNC_WRITE_MULTIPLE_HOLDING_ENABLED > 0
- eMBException
- eMBFuncWriteMultipleHoldingRegister( UCHAR * pucFrame, USHORT * usLen )
- {
- USHORT usRegAddress;
- USHORT usRegCount;
- UCHAR ucRegByteCount;
- eMBException eStatus = MB_EX_NONE;
- eMBErrorCode eRegStatus;
- if( *usLen >= ( MB_PDU_FUNC_WRITE_MUL_SIZE_MIN + MB_PDU_SIZE_MIN ) )
- {
- usRegAddress = ( USHORT )( pucFrame[MB_PDU_FUNC_WRITE_MUL_ADDR_OFF] << 8 );
- usRegAddress |= ( USHORT )( pucFrame[MB_PDU_FUNC_WRITE_MUL_ADDR_OFF + 1] );
- usRegAddress++;
- usRegCount = ( USHORT )( pucFrame[MB_PDU_FUNC_WRITE_MUL_REGCNT_OFF] << 8 );
- usRegCount |= ( USHORT )( pucFrame[MB_PDU_FUNC_WRITE_MUL_REGCNT_OFF + 1] );
- ucRegByteCount = pucFrame[MB_PDU_FUNC_WRITE_MUL_BYTECNT_OFF];
- if( ( usRegCount >= 1 ) &&
- ( usRegCount <= MB_PDU_FUNC_WRITE_MUL_REGCNT_MAX ) &&
- ( ucRegByteCount == ( UCHAR ) ( 2 * usRegCount ) ) )
- {
-
- eRegStatus =
- eMBRegHoldingCB( &pucFrame[MB_PDU_FUNC_WRITE_MUL_VALUES_OFF],
- usRegAddress, usRegCount, MB_REG_WRITE );
-
- if( eRegStatus != MB_ENOERR )
- {
- eStatus = prveMBError2Exception( eRegStatus );
- }
- else
- {
-
- *usLen = MB_PDU_FUNC_WRITE_MUL_BYTECNT_OFF;
- }
- }
- else
- {
- eStatus = MB_EX_ILLEGAL_DATA_VALUE;
- }
- }
- else
- {
-
- eStatus = MB_EX_ILLEGAL_DATA_VALUE;
- }
- return eStatus;
- }
- #endif
- #if MB_FUNC_READ_HOLDING_ENABLED > 0
- eMBException
- eMBFuncReadHoldingRegister( UCHAR * pucFrame, USHORT * usLen )
- {
- USHORT usRegAddress;
- USHORT usRegCount;
- UCHAR *pucFrameCur;
- eMBException eStatus = MB_EX_NONE;
- eMBErrorCode eRegStatus;
- if( *usLen == ( MB_PDU_FUNC_READ_SIZE + MB_PDU_SIZE_MIN ) )
- {
- usRegAddress = ( USHORT )( pucFrame[MB_PDU_FUNC_READ_ADDR_OFF] << 8 );
- usRegAddress |= ( USHORT )( pucFrame[MB_PDU_FUNC_READ_ADDR_OFF + 1] );
- usRegAddress++;
- usRegCount = ( USHORT )( pucFrame[MB_PDU_FUNC_READ_REGCNT_OFF] << 8 );
- usRegCount = ( USHORT )( pucFrame[MB_PDU_FUNC_READ_REGCNT_OFF + 1] );
-
- if( ( usRegCount >= 1 ) && ( usRegCount <= MB_PDU_FUNC_READ_REGCNT_MAX ) )
- {
-
- pucFrameCur = &pucFrame[MB_PDU_FUNC_OFF];
- *usLen = MB_PDU_FUNC_OFF;
-
- *pucFrameCur++ = MB_FUNC_READ_HOLDING_REGISTER;
- *usLen += 1;
-
- *pucFrameCur++ = ( UCHAR ) ( usRegCount * 2 );
- *usLen += 1;
-
- eRegStatus = eMBRegHoldingCB( pucFrameCur, usRegAddress, usRegCount, MB_REG_READ );
-
- if( eRegStatus != MB_ENOERR )
- {
- eStatus = prveMBError2Exception( eRegStatus );
- }
- else
- {
- *usLen += usRegCount * 2;
- }
- }
- else
- {
- eStatus = MB_EX_ILLEGAL_DATA_VALUE;
- }
- }
- else
- {
-
- eStatus = MB_EX_ILLEGAL_DATA_VALUE;
- }
- return eStatus;
- }
- #endif
- #if MB_FUNC_READWRITE_HOLDING_ENABLED > 0
- eMBException
- eMBFuncReadWriteMultipleHoldingRegister( UCHAR * pucFrame, USHORT * usLen )
- {
- USHORT usRegReadAddress;
- USHORT usRegReadCount;
- USHORT usRegWriteAddress;
- USHORT usRegWriteCount;
- UCHAR ucRegWriteByteCount;
- UCHAR *pucFrameCur;
- eMBException eStatus = MB_EX_NONE;
- eMBErrorCode eRegStatus;
- if( *usLen >= ( MB_PDU_FUNC_READWRITE_SIZE_MIN + MB_PDU_SIZE_MIN ) )
- {
- usRegReadAddress = ( USHORT )( pucFrame[MB_PDU_FUNC_READWRITE_READ_ADDR_OFF] << 8U );
- usRegReadAddress |= ( USHORT )( pucFrame[MB_PDU_FUNC_READWRITE_READ_ADDR_OFF + 1] );
- usRegReadAddress++;
- usRegReadCount = ( USHORT )( pucFrame[MB_PDU_FUNC_READWRITE_READ_REGCNT_OFF] << 8U );
- usRegReadCount |= ( USHORT )( pucFrame[MB_PDU_FUNC_READWRITE_READ_REGCNT_OFF + 1] );
- usRegWriteAddress = ( USHORT )( pucFrame[MB_PDU_FUNC_READWRITE_WRITE_ADDR_OFF] << 8U );
- usRegWriteAddress |= ( USHORT )( pucFrame[MB_PDU_FUNC_READWRITE_WRITE_ADDR_OFF + 1] );
- usRegWriteAddress++;
- usRegWriteCount = ( USHORT )( pucFrame[MB_PDU_FUNC_READWRITE_WRITE_REGCNT_OFF] << 8U );
- usRegWriteCount |= ( USHORT )( pucFrame[MB_PDU_FUNC_READWRITE_WRITE_REGCNT_OFF + 1] );
- ucRegWriteByteCount = pucFrame[MB_PDU_FUNC_READWRITE_BYTECNT_OFF];
- if( ( usRegReadCount >= 1 ) && ( usRegReadCount <= 0x7D ) &&
- ( usRegWriteCount >= 1 ) && ( usRegWriteCount <= 0x79 ) &&
- ( ( 2 * usRegWriteCount ) == ucRegWriteByteCount ) )
- {
-
- eRegStatus = eMBRegHoldingCB( &pucFrame[MB_PDU_FUNC_READWRITE_WRITE_VALUES_OFF],
- usRegWriteAddress, usRegWriteCount, MB_REG_WRITE );
- if( eRegStatus == MB_ENOERR )
- {
-
- pucFrameCur = &pucFrame[MB_PDU_FUNC_OFF];
- *usLen = MB_PDU_FUNC_OFF;
-
- *pucFrameCur++ = MB_FUNC_READWRITE_MULTIPLE_REGISTERS;
- *usLen += 1;
-
- *pucFrameCur++ = ( UCHAR ) ( usRegReadCount * 2 );
- *usLen += 1;
-
- eRegStatus =
- eMBRegHoldingCB( pucFrameCur, usRegReadAddress, usRegReadCount, MB_REG_READ );
- if( eRegStatus == MB_ENOERR )
- {
- *usLen += 2 * usRegReadCount;
- }
- }
- if( eRegStatus != MB_ENOERR )
- {
- eStatus = prveMBError2Exception( eRegStatus );
- }
- }
- else
- {
- eStatus = MB_EX_ILLEGAL_DATA_VALUE;
- }
- }
- return eStatus;
- }
- #endif
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