add modbus slave support
add modbus slave support
This commit is contained in:
Supowang1989
241
components/connectivity/Modbus/3rdparty/freemodbus-v1.6/demo/ATSAM3S_FREERTOS/demo.c
vendored
Normal file
241
components/connectivity/Modbus/3rdparty/freemodbus-v1.6/demo/ATSAM3S_FREERTOS/demo.c
vendored
Normal file
@@ -0,0 +1,241 @@
|
||||
/*
|
||||
* FreeModbus Libary: Atmel AT91SAM3S Demo Application
|
||||
* Copyright (C) 2010 Christian Walter <cwalter@embedded-solutions.at>
|
||||
*
|
||||
*
|
||||
* 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
|
||||
* IF 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: $Id$
|
||||
*/
|
||||
|
||||
/* ----------------------- System includes ----------------------------------*/
|
||||
#include <FreeRTOS.h>
|
||||
#include <task.h>
|
||||
|
||||
/* ----------------------- AT91SAM3S includes -------------------------------*/
|
||||
#include <board.h>
|
||||
#include <usart/usart.h>
|
||||
|
||||
/* ----------------------- Modbus includes ----------------------------------*/
|
||||
#include "mb.h"
|
||||
#include "mbport.h"
|
||||
|
||||
/* ----------------------- Defines ------------------------------------------*/
|
||||
#define REG_INPUT_START ( 1000 )
|
||||
#define REG_INPUT_NREGS ( 64 )
|
||||
|
||||
#define REG_HOLDING_START ( 1 )
|
||||
#define REG_HOLDING_NREGS ( 32 )
|
||||
|
||||
#define TASK_MODBUS_STACK_SIZE ( 256 )
|
||||
#define TASK_MODBUS_PRIORITY ( tskIDLE_PRIORITY + 1 )
|
||||
|
||||
#define TASK_APPL_STACK_SIZE ( 256 )
|
||||
#define TASK_APPL_PRIORITY ( tskIDLE_PRIORITY + 1 )
|
||||
|
||||
/* ----------------------- Static functions ---------------------------------*/
|
||||
static void _SetupHardware( void );
|
||||
static void vTaskApplication( void *pvArg );
|
||||
static void vTaskMODBUS( void *pvArg );
|
||||
|
||||
/* ----------------------- Static variables ---------------------------------*/
|
||||
static USHORT usRegInputStart = REG_INPUT_START;
|
||||
static USHORT usRegInputBuf[REG_INPUT_NREGS];
|
||||
static USHORT usRegHoldingStart = REG_HOLDING_START;
|
||||
static USHORT usRegHoldingBuf[REG_HOLDING_NREGS];
|
||||
|
||||
/* ----------------------- Start implementation -----------------------------*/
|
||||
int
|
||||
main( void )
|
||||
{
|
||||
_SetupHardware( );
|
||||
|
||||
if( pdPASS != xTaskCreate( vTaskMODBUS, "MODBUS", TASK_MODBUS_STACK_SIZE, NULL, TASK_MODBUS_PRIORITY, NULL ) )
|
||||
{
|
||||
}
|
||||
else if( pdPASS != xTaskCreate( vTaskApplication, "APPL", TASK_APPL_STACK_SIZE, NULL, TASK_APPL_PRIORITY, NULL ) )
|
||||
{
|
||||
}
|
||||
else
|
||||
{
|
||||
vTaskStartScheduler( );
|
||||
}
|
||||
return 1;
|
||||
}
|
||||
|
||||
static void
|
||||
vTaskApplication( void *pvArg )
|
||||
{
|
||||
for( ;; )
|
||||
{
|
||||
vTaskDelay( 1000 );
|
||||
}
|
||||
}
|
||||
|
||||
static void
|
||||
vTaskMODBUS( void *pvArg )
|
||||
{
|
||||
const UCHAR ucSlaveID[] = { 0xAA, 0xBB, 0xCC };
|
||||
eMBErrorCode eStatus;
|
||||
|
||||
for( ;; )
|
||||
{
|
||||
if( MB_ENOERR != ( eStatus = eMBInit( MB_ASCII, 0x0A, 1, 38400, MB_PAR_EVEN ) ) )
|
||||
{
|
||||
/* Can not initialize. Add error handling code here. */
|
||||
}
|
||||
else
|
||||
{
|
||||
if( MB_ENOERR != ( eStatus = eMBSetSlaveID( 0x34, TRUE, ucSlaveID, 3 ) ) )
|
||||
{
|
||||
/* Can not set slave id. Check arguments */
|
||||
}
|
||||
else if( MB_ENOERR != ( eStatus = eMBEnable( ) ) )
|
||||
{
|
||||
/* Enable failed. */
|
||||
}
|
||||
else
|
||||
{
|
||||
usRegHoldingBuf[0] = 1;
|
||||
do
|
||||
{
|
||||
( void )eMBPoll( );
|
||||
|
||||
/* Here we simply count the number of poll cycles. */
|
||||
usRegInputBuf[0]++;
|
||||
}
|
||||
while( usRegHoldingBuf[0] );
|
||||
}
|
||||
( void )eMBDisable( );
|
||||
( void )eMBClose( );
|
||||
}
|
||||
vTaskDelay( 50 );
|
||||
}
|
||||
}
|
||||
|
||||
static void
|
||||
_SetupHardware( void )
|
||||
{
|
||||
WDT_Disable( );
|
||||
|
||||
uint32_t i = 0;
|
||||
for( i = 0; i < 35; i++ )
|
||||
{
|
||||
NVIC_SetPriority( ( IRQn_Type ) i, 0xF << 4 );
|
||||
}
|
||||
}
|
||||
|
||||
void
|
||||
vApplicationStackOverflowHook( xTaskHandle * pxTask, signed char *pcTaskName )
|
||||
{
|
||||
( void )pxTask;
|
||||
( void )pcTaskName;
|
||||
for( ;; );
|
||||
}
|
||||
|
||||
void
|
||||
vApplicationIdleHook( void )
|
||||
{
|
||||
}
|
||||
|
||||
void
|
||||
vApplicationTickHook( void )
|
||||
{
|
||||
}
|
||||
|
||||
|
||||
eMBErrorCode
|
||||
eMBRegInputCB( UCHAR * pucRegBuffer, USHORT usAddress, USHORT usNRegs )
|
||||
{
|
||||
eMBErrorCode eStatus = MB_ENOERR;
|
||||
int iRegIndex;
|
||||
|
||||
if( ( usAddress >= REG_INPUT_START ) && ( usAddress + usNRegs <= REG_INPUT_START + REG_INPUT_NREGS ) )
|
||||
{
|
||||
iRegIndex = ( int )( usAddress - usRegInputStart );
|
||||
while( usNRegs > 0 )
|
||||
{
|
||||
*pucRegBuffer++ = ( unsigned char )( usRegInputBuf[iRegIndex] >> 8 );
|
||||
*pucRegBuffer++ = ( unsigned char )( usRegInputBuf[iRegIndex] & 0xFF );
|
||||
iRegIndex++;
|
||||
usNRegs--;
|
||||
}
|
||||
}
|
||||
else
|
||||
{
|
||||
eStatus = MB_ENOREG;
|
||||
}
|
||||
|
||||
return eStatus;
|
||||
}
|
||||
|
||||
eMBErrorCode
|
||||
eMBRegHoldingCB( UCHAR * pucRegBuffer, USHORT usAddress, USHORT usNRegs, eMBRegisterMode eMode )
|
||||
{
|
||||
eMBErrorCode eStatus = MB_ENOERR;
|
||||
int iRegIndex;
|
||||
|
||||
if( ( usAddress >= REG_HOLDING_START ) && ( usAddress + usNRegs <= REG_HOLDING_START + REG_HOLDING_NREGS ) )
|
||||
{
|
||||
iRegIndex = ( int )( usAddress - usRegHoldingStart );
|
||||
switch ( eMode )
|
||||
{
|
||||
case MB_REG_READ:
|
||||
while( usNRegs > 0 )
|
||||
{
|
||||
*pucRegBuffer++ = ( unsigned char )( usRegHoldingBuf[iRegIndex] >> 8 );
|
||||
*pucRegBuffer++ = ( unsigned char )( usRegHoldingBuf[iRegIndex] & 0xFF );
|
||||
iRegIndex++;
|
||||
usNRegs--;
|
||||
}
|
||||
break;
|
||||
|
||||
case MB_REG_WRITE:
|
||||
while( usNRegs > 0 )
|
||||
{
|
||||
usRegHoldingBuf[iRegIndex] = *pucRegBuffer++ << 8;
|
||||
usRegHoldingBuf[iRegIndex] |= *pucRegBuffer++;
|
||||
iRegIndex++;
|
||||
usNRegs--;
|
||||
}
|
||||
}
|
||||
}
|
||||
else
|
||||
{
|
||||
eStatus = MB_ENOREG;
|
||||
}
|
||||
return eStatus;
|
||||
}
|
||||
|
||||
|
||||
eMBErrorCode
|
||||
eMBRegCoilsCB( UCHAR * pucRegBuffer, USHORT usAddress, USHORT usNCoils, eMBRegisterMode eMode )
|
||||
{
|
||||
return MB_ENOREG;
|
||||
}
|
||||
|
||||
eMBErrorCode
|
||||
eMBRegDiscreteCB( UCHAR * pucRegBuffer, USHORT usAddress, USHORT usNDiscrete )
|
||||
{
|
||||
return MB_ENOREG;
|
||||
}
|
||||
Reference in New Issue
Block a user