Diff: Modbus/port/portserial.cpp

Revision:

8:924d128c1722

Parent:

5:c712a10c9414

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/Modbus/port/portserial.cpp	Fri Mar 31 01:35:28 2017 +0000
@@ -0,0 +1,140 @@
+/*
+ * FreeModbus Libary: BARE Port
+ * Copyright (C) 2006 Christian Walter <wolti@sil.at>
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+ *
+ * File: $Id: portserial.c,v 1.1 2006/08/22 21:35:13 wolti Exp $
+ */
+
+/* ----------------------- System includes ----------------------------------*/
+#include "mbed.h"                   // Cam
+
+/* ----------------------- Platform includes --------------------------------*/
+#include "port.h"
+
+/* ----------------------- Modbus includes ----------------------------------*/
+#include "mb.h"
+#include "mbport.h"
+
+
+/* ----------------------- static functions ---------------------------------*/
+static void prvvUARTTxReadyISR( void );
+static void prvvUARTRxISR( void );
+
+
+/* ----------------------- System Variables ---------------------------------*/
+Serial ser3(PB_10, PC_5); //serial3
+extern Serial pc;
+static uint8_t grx_buf=0;
+
+/* ----------------------- Start implementation -----------------------------*/
+void
+vMBPortSerialEnable( BOOL xRxEnable, BOOL xTxEnable )
+{
+    /* If xRXEnable enable serial receive interrupts. If xTxENable enable
+     * transmitter empty interrupts.
+     */
+   
+
+	//stanley
+	ENTER_CRITICAL_SECTION( );
+	
+
+	ser3.attach(NULL); //close all
+	
+	if(xRxEnable)
+		ser3.attach(&prvvUARTRxISR,Serial::RxIrq);
+	
+	if(xTxEnable)
+	{
+		ser3.attach(&prvvUARTTxReadyISR,Serial::TxIrq);
+		while(!ser3.writeable());
+		prvvUARTTxReadyISR();
+	}		
+	EXIT_CRITICAL_SECTION( );
+
+	//if(xTxEnable)
+		//¤£¥Î¦b³oÃä³]©wser3.write(tx_buf,TX_BUFF_LENGTH,serialTxCBEvent,SERIAL_EVENT_TX_COMPLETE);
+
+	//else
+	//{
+	//	ser3.attach(NULL,Serial::RxIrq);  //stanley  the test result find that this may disable RxIrq and TxIrq so have to enable TxIrq
+	//	ser3.attach(&prvvUARTTxReadyISR,Serial::TxIrq);  
+	//}
+}
+
+BOOL
+xMBPortSerialInit( UCHAR ucPORT, ULONG ulBaudRate, UCHAR ucDataBits, eMBParity eParity )
+{
+   
+	ser3.baud(ulBaudRate); //stanley
+	
+
+	return TRUE;
+}
+
+BOOL
+xMBPortSerialPutByte( CHAR ucByte )
+{
+    /* Put a byte in the UARTs transmit buffer. This function is called
+     * by the protocol stack if pxMBFrameCBTransmitterEmpty( ) has been
+     * called. */
+
+	//stanley
+	ser3.putc( ucByte);
+
+    return TRUE;
+}
+
+BOOL
+xMBPortSerialGetByte( CHAR * pucByte )
+{
+    /* Return the byte in the UARTs receive buffer. This function is called
+     * by the protocol stack after pxMBFrameCBByteReceived( ) has been called.
+     */
+	
+	*pucByte = grx_buf;//stanley
+
+	
+
+    return TRUE;
+}
+
+/* Create an interrupt handler for the transmit buffer empty interrupt
+ * (or an equivalent) for your target processor. This function should then
+ * call pxMBFrameCBTransmitterEmpty( ) which tells the protocol stack that
+ * a new character can be sent. The protocol stack will then call 
+ * xMBPortSerialPutByte( ) to send the character.
+ */
+static void prvvUARTTxReadyISR( void )
+{
+    pxMBFrameCBTransmitterEmpty();
+}
+
+/* Create an interrupt handler for the receive interrupt for your target
+ * processor. This function should then call pxMBFrameCBByteReceived( ). The
+ * protocol stack will then call xMBPortSerialGetByte( ) to retrieve the
+ * character.
+ */
+static void prvvUARTRxISR( void )
+{
+	if(ser3.readable())	//stanlely RX ISR must contain getc
+		grx_buf=ser3.getc();
+
+    pxMBFrameCBByteReceived();
+}
+
+