hsu han-lin / Mbed 2 deprecated Modbus_Test

from Cam Marshall original modbus

Dependencies:   mbed

Fork of Modbus by Cam Marshall

Modbus/portserial.cpp@5:c712a10c9414, 2017-03-14 (annotated)

Committer:
stanley1228
Date:
Tue Mar 14 22:23:17 2017 +0800
Revision:
5:c712a10c9414
Parent:
4:5000041d2dc2 
1.change baud rate to 115200

2.add define enter critical section (__disable_Irq)

3.add define exit  critical section (__enable_Irq)

Who changed what in which revision?

UserRevisionLine numberNew contents of line
cam 0:0453a0a7e500 1 /*
cam 0:0453a0a7e500 2 * FreeModbus Libary: BARE Port
cam 0:0453a0a7e500 3 * Copyright (C) 2006 Christian Walter <wolti@sil.at>
cam 0:0453a0a7e500 4 *
cam 0:0453a0a7e500 5 * This library is free software; you can redistribute it and/or
cam 0:0453a0a7e500 6 * modify it under the terms of the GNU Lesser General Public
cam 0:0453a0a7e500 7 * License as published by the Free Software Foundation; either
cam 0:0453a0a7e500 8 * version 2.1 of the License, or (at your option) any later version.
cam 0:0453a0a7e500 9 *
cam 0:0453a0a7e500 10 * This library is distributed in the hope that it will be useful,
cam 0:0453a0a7e500 11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
cam 0:0453a0a7e500 12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
cam 0:0453a0a7e500 13 * Lesser General Public License for more details.
cam 0:0453a0a7e500 14 *
cam 0:0453a0a7e500 15 * You should have received a copy of the GNU Lesser General Public
cam 0:0453a0a7e500 16 * License along with this library; if not, write to the Free Software
cam 0:0453a0a7e500 17 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
cam 0:0453a0a7e500 18 *
cam 0:0453a0a7e500 19 * File: $Id: portserial.c,v 1.1 2006/08/22 21:35:13 wolti Exp $
cam 0:0453a0a7e500 20 */
cam 0:0453a0a7e500 21
cam 0:0453a0a7e500 22 /* ----------------------- System includes ----------------------------------*/
cam 0:0453a0a7e500 23 #include "mbed.h" // Cam
cam 0:0453a0a7e500 24
cam 0:0453a0a7e500 25 /* ----------------------- Platform includes --------------------------------*/
cam 0:0453a0a7e500 26 #include "port.h"
cam 0:0453a0a7e500 27
cam 0:0453a0a7e500 28 /* ----------------------- Modbus includes ----------------------------------*/
cam 0:0453a0a7e500 29 #include "mb.h"
cam 0:0453a0a7e500 30 #include "mbport.h"
cam 0:0453a0a7e500 31
cam 0:0453a0a7e500 32
cam 0:0453a0a7e500 33 /* ----------------------- static functions ---------------------------------*/
cam 0:0453a0a7e500 34 static void prvvUARTTxReadyISR( void );
cam 0:0453a0a7e500 35 static void prvvUARTRxISR( void );
stanley1228 5:c712a10c9414 36
cam 0:0453a0a7e500 37
cam 0:0453a0a7e500 38 /* ----------------------- System Variables ---------------------------------*/
stanley1228 4:5000041d2dc2 39 Serial ser3(PB_10, PC_5); //serial3
stanley1228 2:5f360876388e 40 extern Serial pc;
stanley1228 4:5000041d2dc2 41 static uint8_t grx_buf=0;
stanley1228 4:5000041d2dc2 42
cam 0:0453a0a7e500 43 /* ----------------------- Start implementation -----------------------------*/
cam 0:0453a0a7e500 44 void
cam 0:0453a0a7e500 45 vMBPortSerialEnable( BOOL xRxEnable, BOOL xTxEnable )
cam 0:0453a0a7e500 46 {
cam 0:0453a0a7e500 47 /* If xRXEnable enable serial receive interrupts. If xTxENable enable
cam 0:0453a0a7e500 48 * transmitter empty interrupts.
cam 0:0453a0a7e500 49 */
stanley1228 5:c712a10c9414 50
stanley1228 2:5f360876388e 51
stanley1228 2:5f360876388e 52 //stanley
stanley1228 5:c712a10c9414 53 ENTER_CRITICAL_SECTION( );
stanley1228 5:c712a10c9414 54
stanley1228 4:5000041d2dc2 55
stanley1228 4:5000041d2dc2 56 ser3.attach(NULL); //close all
stanley1228 4:5000041d2dc2 57
stanley1228 2:5f360876388e 58 if(xRxEnable)
stanley1228 2:5f360876388e 59 ser3.attach(&prvvUARTRxISR,Serial::RxIrq);
stanley1228 2:5f360876388e 60
stanley1228 4:5000041d2dc2 61 if(xTxEnable)
stanley1228 4:5000041d2dc2 62 {
stanley1228 2:5f360876388e 63 ser3.attach(&prvvUARTTxReadyISR,Serial::TxIrq);
stanley1228 4:5000041d2dc2 64 while(!ser3.writeable());
stanley1228 4:5000041d2dc2 65 prvvUARTTxReadyISR();
stanley1228 4:5000041d2dc2 66 }
stanley1228 5:c712a10c9414 67 EXIT_CRITICAL_SECTION( );
stanley1228 4:5000041d2dc2 68
stanley1228 2:5f360876388e 69 //if(xTxEnable)
stanley1228 2:5f360876388e 70 //¤£¥Î¦b³oÃä³]©wser3.write(tx_buf,TX_BUFF_LENGTH,serialTxCBEvent,SERIAL_EVENT_TX_COMPLETE);
stanley1228 4:5000041d2dc2 71
stanley1228 4:5000041d2dc2 72 //else
stanley1228 4:5000041d2dc2 73 //{
stanley1228 4:5000041d2dc2 74 // ser3.attach(NULL,Serial::RxIrq); //stanley the test result find that this may disable RxIrq and TxIrq so have to enable TxIrq
stanley1228 4:5000041d2dc2 75 // ser3.attach(&prvvUARTTxReadyISR,Serial::TxIrq);
stanley1228 4:5000041d2dc2 76 //}
cam 0:0453a0a7e500 77 }
cam 0:0453a0a7e500 78
cam 0:0453a0a7e500 79 BOOL
cam 0:0453a0a7e500 80 xMBPortSerialInit( UCHAR ucPORT, ULONG ulBaudRate, UCHAR ucDataBits, eMBParity eParity )
cam 0:0453a0a7e500 81 {
stanley1228 2:5f360876388e 82
stanley1228 5:c712a10c9414 83 ser3.baud(ulBaudRate); //stanley
stanley1228 5:c712a10c9414 84
stanley1228 2:5f360876388e 85
stanley1228 2:5f360876388e 86 return TRUE;
cam 0:0453a0a7e500 87 }
cam 0:0453a0a7e500 88
cam 0:0453a0a7e500 89 BOOL
cam 0:0453a0a7e500 90 xMBPortSerialPutByte( CHAR ucByte )
cam 0:0453a0a7e500 91 {
cam 0:0453a0a7e500 92 /* Put a byte in the UARTs transmit buffer. This function is called
cam 0:0453a0a7e500 93 * by the protocol stack if pxMBFrameCBTransmitterEmpty( ) has been
cam 0:0453a0a7e500 94 * called. */
stanley1228 4:5000041d2dc2 95
stanley1228 2:5f360876388e 96 //stanley
stanley1228 2:5f360876388e 97 ser3.putc( ucByte);
stanley1228 2:5f360876388e 98
cam 0:0453a0a7e500 99 return TRUE;
cam 0:0453a0a7e500 100 }
cam 0:0453a0a7e500 101
cam 0:0453a0a7e500 102 BOOL
cam 0:0453a0a7e500 103 xMBPortSerialGetByte( CHAR * pucByte )
cam 0:0453a0a7e500 104 {
cam 0:0453a0a7e500 105 /* Return the byte in the UARTs receive buffer. This function is called
cam 0:0453a0a7e500 106 * by the protocol stack after pxMBFrameCBByteReceived( ) has been called.
cam 0:0453a0a7e500 107 */
stanley1228 4:5000041d2dc2 108
stanley1228 4:5000041d2dc2 109 *pucByte = grx_buf;//stanley
stanley1228 2:5f360876388e 110
stanley1228 2:5f360876388e 111
stanley1228 2:5f360876388e 112
cam 0:0453a0a7e500 113 return TRUE;
cam 0:0453a0a7e500 114 }
cam 0:0453a0a7e500 115
cam 0:0453a0a7e500 116 /* Create an interrupt handler for the transmit buffer empty interrupt
cam 0:0453a0a7e500 117 * (or an equivalent) for your target processor. This function should then
cam 0:0453a0a7e500 118 * call pxMBFrameCBTransmitterEmpty( ) which tells the protocol stack that
cam 0:0453a0a7e500 119 * a new character can be sent. The protocol stack will then call
cam 0:0453a0a7e500 120 * xMBPortSerialPutByte( ) to send the character.
cam 0:0453a0a7e500 121 */
cam 0:0453a0a7e500 122 static void prvvUARTTxReadyISR( void )
cam 0:0453a0a7e500 123 {
stanley1228 2:5f360876388e 124 pxMBFrameCBTransmitterEmpty();
cam 0:0453a0a7e500 125 }
cam 0:0453a0a7e500 126
cam 0:0453a0a7e500 127 /* Create an interrupt handler for the receive interrupt for your target
cam 0:0453a0a7e500 128 * processor. This function should then call pxMBFrameCBByteReceived( ). The
cam 0:0453a0a7e500 129 * protocol stack will then call xMBPortSerialGetByte( ) to retrieve the
cam 0:0453a0a7e500 130 * character.
cam 0:0453a0a7e500 131 */
cam 0:0453a0a7e500 132 static void prvvUARTRxISR( void )
cam 0:0453a0a7e500 133 {
stanley1228 4:5000041d2dc2 134 if(ser3.readable()) //stanlely RX ISR must contain getc
stanley1228 4:5000041d2dc2 135 grx_buf=ser3.getc();
stanley1228 4:5000041d2dc2 136
stanley1228 2:5f360876388e 137 pxMBFrameCBByteReceived();
cam 0:0453a0a7e500 138 }
cam 0:0453a0a7e500 139
cam 0:0453a0a7e500 140