f0eb9985b9
This example adds functionality to support basic communication in RS485 networks using Modbus protocol. This example uses FreeModbus stack and regular UART driver API to communicate in RS485 half duplex mode. Added initial support of modbus controller pure C api to access device parameters over Modbus transport. Move freemodbus stack and port files into components folder Move the modbus_controller interface into components idf folder Source files updated after review. Add modbus interface documentation docs/en/api-reference/protocols/modbus.rst porttimer.c: fix bug with timer1 selected in the Kconfig Add support of cmake system (added cmake files) Closes https://github.com/espressif/esp-idf/issues/858
99 lines
3.2 KiB
C
99 lines
3.2 KiB
C
/*
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* FreeModbus Libary: ESP32 Port Demo Application
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* Copyright (C) 2010 Christian Walter <cwalter@embedded-solutions.at>
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*
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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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* IF 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: portother.c,v 1.1 2010/06/06 13:07:20 wolti Exp $
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*/
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#ifndef _PORT_H
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#define _PORT_H
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/* ----------------------- Platform includes --------------------------------*/
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#include "driver/uart.h"
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#include "driver/timer.h"
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#include "esp_log.h"
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#include "freertos/FreeRTOS.h"
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#include "freertos/xtensa_api.h"
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#include "freertos/portmacro.h"
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#include "sdkconfig.h"
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/* ----------------------- Defines ------------------------------------------*/
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#ifdef __cplusplus
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extern "C" {
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#endif /* __cplusplus */
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#define MB_PORT_TAG "MB_PORT"
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#define MB_PORT_CHECK(a, ret_val, str, ...) \
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if (!(a)) { \
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ESP_LOGE(MB_PORT_TAG, "%s(%u): " str, __FUNCTION__, __LINE__, ##__VA_ARGS__); \
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return (ret_val); \
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}
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#define INLINE inline
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#define PR_BEGIN_EXTERN_C extern "C" {
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#define PR_END_EXTERN_C }
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#define MB_ENTER_CRITICAL_ISR(mux) portENTER_CRITICAL_ISR(mux)
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#define MB_EXIT_CRITICAL_ISR(mux) portEXIT_CRITICAL_ISR(mux)
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#define MB_ENTER_CRITICAL(mux) portENTER_CRITICAL(mux)
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#define MB_EXIT_CRITICAL(mux) portEXIT_CRITICAL(mux)
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#define ENTER_CRITICAL_SECTION( ) ( vMBPortEnterCritical() )
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#define EXIT_CRITICAL_SECTION( ) ( vMBPortExitCritical() )
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typedef char BOOL;
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typedef unsigned char UCHAR;
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typedef char CHAR;
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typedef unsigned short USHORT;
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typedef short SHORT;
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typedef unsigned long ULONG;
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typedef long LONG;
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#ifndef TRUE
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#define TRUE 1
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#endif
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#ifndef FALSE
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#define FALSE 0
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#endif
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void vMBPortSetWithinException( BOOL bInException );
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void vMBPortEnterCritical(void);
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void vMBPortExitCritical(void);
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BOOL xMBPortSerialTxPoll();
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#ifdef __cplusplus
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}
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#endif /* __cplusplus */
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#endif
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