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: mbproto.h
- Revision:
- 0:0453a0a7e500
diff -r 000000000000 -r 0453a0a7e500 mbproto.h --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/mbproto.h Thu Apr 15 12:10:34 2010 +0000 @@ -0,0 +1,83 @@ +/* + * FreeModbus Libary: A portable Modbus implementation for Modbus ASCII/RTU. + * Copyright (c) 2006 Christian Walter <wolti@sil.at> + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR + * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES + * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. + * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, + * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT + * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, + * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY + * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF + * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + * + * File: $Id: mbproto.h,v 1.14 2006/12/07 22:10:34 wolti Exp $ + */ + +#ifndef _MB_PROTO_H +#define _MB_PROTO_H + +#ifdef __cplusplus +PR_BEGIN_EXTERN_C +#endif +/* ----------------------- Defines ------------------------------------------*/ +#define MB_ADDRESS_BROADCAST ( 0 ) /*! Modbus broadcast address. */ +#define MB_ADDRESS_MIN ( 1 ) /*! Smallest possible slave address. */ +#define MB_ADDRESS_MAX ( 247 ) /*! Biggest possible slave address. */ +#define MB_FUNC_NONE ( 0 ) +#define MB_FUNC_READ_COILS ( 1 ) +#define MB_FUNC_READ_DISCRETE_INPUTS ( 2 ) +#define MB_FUNC_WRITE_SINGLE_COIL ( 5 ) +#define MB_FUNC_WRITE_MULTIPLE_COILS ( 15 ) +#define MB_FUNC_READ_HOLDING_REGISTER ( 3 ) +#define MB_FUNC_READ_INPUT_REGISTER ( 4 ) +#define MB_FUNC_WRITE_REGISTER ( 6 ) +#define MB_FUNC_WRITE_MULTIPLE_REGISTERS ( 16 ) +#define MB_FUNC_READWRITE_MULTIPLE_REGISTERS ( 23 ) +#define MB_FUNC_DIAG_READ_EXCEPTION ( 7 ) +#define MB_FUNC_DIAG_DIAGNOSTIC ( 8 ) +#define MB_FUNC_DIAG_GET_COM_EVENT_CNT ( 11 ) +#define MB_FUNC_DIAG_GET_COM_EVENT_LOG ( 12 ) +#define MB_FUNC_OTHER_REPORT_SLAVEID ( 17 ) +#define MB_FUNC_ERROR ( 128 ) +/* ----------------------- Type definitions ---------------------------------*/ + typedef enum +{ + MB_EX_NONE = 0x00, + MB_EX_ILLEGAL_FUNCTION = 0x01, + MB_EX_ILLEGAL_DATA_ADDRESS = 0x02, + MB_EX_ILLEGAL_DATA_VALUE = 0x03, + MB_EX_SLAVE_DEVICE_FAILURE = 0x04, + MB_EX_ACKNOWLEDGE = 0x05, + MB_EX_SLAVE_BUSY = 0x06, + MB_EX_MEMORY_PARITY_ERROR = 0x08, + MB_EX_GATEWAY_PATH_FAILED = 0x0A, + MB_EX_GATEWAY_TGT_FAILED = 0x0B +} eMBException; + +typedef eMBException( *pxMBFunctionHandler ) ( UCHAR * pucFrame, USHORT * pusLength ); + +typedef struct +{ + UCHAR ucFunctionCode; + pxMBFunctionHandler pxHandler; +} xMBFunctionHandler; + +#ifdef __cplusplus +PR_END_EXTERN_C +#endif +#endif