Daniel McKinnell
Forking https://os.mbed.com/users/cam/code/Modbus/ to work for NUCLEO 64 boards
Fork of Cam's original FreeModbus port (https://os.mbed.com/users/cam/code/Modbus/)
Change: - Serial implementation to work for NUCLEO 64 boards and receive interrupts instead of timer. (see `portserial.cpp`)
Added: - Custom RTU mode. Allows for external implementation of packet receiving and sending. Sends and receives packets as whole frames (address + PDU) (i.e. this was added for a custom LoRa implementation). implement `xMBRTUCustGetPDU` and `xMBRTUCustSendResponse` (see `mbport.h`) and call `eMBRTUCustomInit( address )`. implementations need to be fully initialised as `eMBRTUCustomInit` only sets the address and nothing else.
Diff: mb.cpp
- Revision:
- 3:4cda95d7b6c5
- Parent:
- 0:0453a0a7e500
--- a/mb.cpp Tue Dec 03 09:13:22 2019 +0000
+++ b/mb.cpp Mon Jan 06 01:17:26 2020 +0000
@@ -42,9 +42,13 @@
#include "mbproto.h"
#include "mbfunc.h"
#include "mbport.h"
+
#if MB_RTU_ENABLED == 1
#include "mbrtu.h"
#endif
+#if MB_RTU_CUSTOM_ENABLED == 1
+#include "mbrtucustom.h"
+#endif
#if MB_ASCII_ENABLED == 1
#include "mbascii.h"
#endif
@@ -182,6 +186,33 @@
return eStatus;
}
+#if MB_RTU_CUSTOM_ENABLED > 0
+eMBErrorCode
+eMBRTUCustomInit( UCHAR ucSlaveAddress ) {
+ eMBErrorCode eStatus = MB_ENOERR;
+ ucMBAddress = ucSlaveAddress;
+ eStatus = eMBRTUCustInit( ucSlaveAddress );
+ // if ( ( eStatus = eMBRTUCustInit( ucMBAddress ) ) != MB_ENOERR ) {
+ eMBState = STATE_DISABLED;
+ // } else
+ if ( !xMBPortEventInit( ) ) {
+ /* Port dependent event module initalization failed. */
+ eStatus = MB_EPORTERR;
+ }
+ else {
+ pvMBFrameStartCur = eMBRTUCustStart;
+ pvMBFrameStopCur = eMBRTUCustStop;
+ peMBFrameSendCur = eMBRTUCustSend;
+ peMBFrameReceiveCur = eMBRTUCustReceive;
+ pvMBFrameCloseCur = MB_PORT_HAS_CLOSE ? vMBPortClose : NULL;
+
+ eMBCurrentMode = MB_RTU_CUSTOM;
+ eMBState = STATE_DISABLED;
+ }
+ return eStatus;
+}
+#endif
+
#if MB_TCP_ENABLED > 0
eMBErrorCode
eMBTCPInit( USHORT ucTCPPort ) {
@@ -354,4 +385,4 @@
}
}
return MB_ENOERR;
-}
+}
\ No newline at end of file