libs/FreeModbus_Slave-Master-RTT-STM32
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FreeModbus_Slave-Master-RTT-STM32
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1、【修改】FreeModbus主机事件处理及方法执行部分源码，使得在主机广播写从机的过程中，也同时更新主机缓冲区。 

Signed-off-by: armink <armink.ztl@gmail.com>
This commit is contained in:
armink 2014-03-01 17:06:13 +08:00
parent 7513daf118
commit 6f01fe6286
9 changed files with 56 additions and 18 deletions
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FreeModbus 主机分析图.vsd
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7
FreeModbus/modbus/functions/mbfunccoils_m.c
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@ -120,7 +120,12 @@ eMBMasterFuncReadCoils( UCHAR * pucFrame, USHORT * usLen )
eMBException eStatus = MB_EX_NONE;
eMBErrorCode eRegStatus;
if( *usLen >= MB_PDU_SIZE_MIN + MB_PDU_FUNC_READ_SIZE_MIN )
/* 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_READ_SIZE_MIN )
{
vMBMasterGetPDUSndBuf(&ucMBFrame);
usRegAddress = ( USHORT )( ucMBFrame[MB_PDU_REQ_READ_ADDR_OFF] << 8 );

7
FreeModbus/modbus/functions/mbfuncdisc_m.c
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@ -104,7 +104,12 @@ eMBMasterFuncReadDiscreteInputs( UCHAR * pucFrame, USHORT * usLen )
eMBException eStatus = MB_EX_NONE;
eMBErrorCode eRegStatus;
if( *usLen >= MB_PDU_SIZE_MIN + MB_PDU_FUNC_READ_SIZE_MIN )
/* 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_READ_SIZE_MIN )
{
vMBMasterGetPDUSndBuf(&ucMBFrame);
usRegAddress = ( USHORT )( ucMBFrame[MB_PDU_REQ_READ_ADDR_OFF] << 8 );

14
FreeModbus/modbus/functions/mbfuncholding_m.c
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@ -294,7 +294,12 @@ eMBMasterFuncReadHoldingRegister( UCHAR * pucFrame, USHORT * usLen )
eMBException eStatus = MB_EX_NONE;
eMBErrorCode eRegStatus;
if( *usLen >= MB_PDU_SIZE_MIN + MB_PDU_FUNC_READ_SIZE_MIN )
/* 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_READ_SIZE_MIN )
{
vMBMasterGetPDUSndBuf(&ucMBFrame);
usRegAddress = ( USHORT )( ucMBFrame[MB_PDU_REQ_READ_ADDR_OFF] << 8 );
@ -397,7 +402,12 @@ eMBMasterFuncReadWriteMultipleHoldingRegister( UCHAR * pucFrame, USHORT * usLen
eMBException eStatus = MB_EX_NONE;
eMBErrorCode eRegStatus;
if( *usLen >= MB_PDU_SIZE_MIN + MB_PDU_FUNC_READWRITE_SIZE_MIN )
/* 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 );

7
FreeModbus/modbus/functions/mbfuncinput_m.c
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@ -103,7 +103,12 @@ eMBMasterFuncReadInputRegister( UCHAR * pucFrame, USHORT * usLen )
eMBException eStatus = MB_EX_NONE;
eMBErrorCode eRegStatus;
if( *usLen >= MB_PDU_SIZE_MIN + MB_PDU_FUNC_READ_SIZE_MIN )
/* 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_READ_SIZE_MIN )
{
vMBMasterGetPDUSndBuf(&ucMBFrame);
usRegAddress = ( USHORT )( ucMBFrame[MB_PDU_REQ_READ_ADDR_OFF] << 8 );

1
FreeModbus/modbus/include/mb_m.h
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@ -389,6 +389,7 @@ void vMBMasterSetCBRunInMasterMode( BOOL IsMasterMode );
USHORT usMBMasterGetPDUSndLength( void );
void vMBMasterSetPDUSndLength( USHORT SendPDULength );
void vMBMasterSetCurTimerMode( eMBMasterTimerMode eMBTimerMode );
BOOL xMBMasterRequestIsBroadcast( void );
eMBMasterErrorEventType eMBMasterGetErrorType( void );
void vMBMasterSetErrorType( eMBMasterErrorEventType errorType );
eMBMasterReqErrCode vMBMasterWaitRequestFinish( void );

2
FreeModbus/modbus/include/mbconfig.h
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@ -117,7 +117,7 @@ PR_BEGIN_EXTERN_C
* Then master can send other frame */
#define MB_MASTER_TIMEOUT_MS_RESPOND (100 )
/*! \brief The total slaves in Modbus Master system. Default 16.
* Note : The slave ID must be continuous from 0.*/
* \note : The slave ID must be continuous from 1.*/
#define MB_MASTER_TOTAL_SLAVE_NUM ( 16 )
#endif

24
FreeModbus/modbus/mb_m.c
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@ -259,7 +259,7 @@ eMBMasterPoll( void )
static USHORT usLength;
static eMBException eException;
int i;
int i , j;
eMBErrorCode eStatus = MB_ENOERR;
eMBMasterEventType eEvent;
eMBMasterErrorEventType errorType;
@ -305,16 +305,24 @@ eMBMasterPoll( void )
for (i = 0; i < MB_FUNC_HANDLERS_MAX; i++)
{
/* No more function handlers registered. Abort. */
if (xMasterFuncHandlers[i].ucFunctionCode == 0)
{
if (xMasterFuncHandlers[i].ucFunctionCode == 0) {
break;
}
else if (xMasterFuncHandlers[i].ucFunctionCode
== ucFunctionCode)
{
else if (xMasterFuncHandlers[i].ucFunctionCode == ucFunctionCode) {
vMBMasterSetCBRunInMasterMode(TRUE);
eException = xMasterFuncHandlers[i].pxHandler(ucMBFrame,
&usLength);
/* If master request is broadcast,
* the master need execute function for all slave.
*/
if ( xMBMasterRequestIsBroadcast() ) {
usLength = usMBMasterGetPDUSndLength();
for(j = 1; j <= MB_MASTER_TOTAL_SLAVE_NUM; j++){
vMBMasterSetDestAddress(j);
eException = xMasterFuncHandlers[i].pxHandler(ucMBFrame, &usLength);
}
}
else {
eException = xMasterFuncHandlers[i].pxHandler(ucMBFrame, &usLength);
}
vMBMasterSetCBRunInMasterMode(FALSE);
break;
}

10
FreeModbus/modbus/rtu/mbrtu_m.c
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@ -395,10 +395,9 @@ xMBMasterRTUTimerExpired(void)
eSndState = STATE_M_TX_IDLE;
vMBMasterPortTimersDisable( );
/* If timer mode is convert delay ,then Master is idel now. */
/* If timer mode is convert delay, the master event then turns EV_MASTER_EXECUTE status. */
if (eMasterCurTimerMode == MB_TMODE_CONVERT_DELAY) {
vMBMasterCBRequestScuuess( );
vMBMasterRunResRelease( );
xNeedPoll = xMBMasterPortEventPost( EV_MASTER_EXECUTE );
}
return xNeedPoll;
@ -433,5 +432,10 @@ void vMBMasterSetCurTimerMode( eMBMasterTimerMode eMBTimerMode )
{
eMasterCurTimerMode = eMBTimerMode;
}
/* The master request is broadcast? */
BOOL xMBMasterRequestIsBroadcast( void ){
return xFrameIsBroadcast;
}
#endif