Diff: main.cpp

Revision:

0:0b777ff85deb

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp	Mon Jul 05 10:16:57 2010 +0000
@@ -0,0 +1,118 @@
+#include "mbed.h"
+/*----------------------------------------------------------------------------
+ *      Name:    vcomdemo.c
+ *      Purpose: USB virtual COM port Demo
+ *      Version: V1.20
+ *----------------------------------------------------------------------------
+ *      This software is supplied "AS IS" without any warranties, express,
+ *      implied or statutory, including but not limited to the implied
+ *      warranties of fitness for purpose, satisfactory quality and
+ *      noninfringement. Keil extends you a royalty-free right to reproduce
+ *      and distribute executable files created using this software for use
+ *      on NXP Semiconductors LPC microcontroller devices only. Nothing else 
+ *      gives you the right to use this software.
+ *
+ * Copyright (c) 2009 Keil - An ARM Company. All rights reserved.
+ *---------------------------------------------------------------------------*/
+
+#include "LPC17xx.h"    
+//#include "LPC23xx.h"
+#include "type.h"
+
+#include "usb.h"
+#include "usbcfg.h"
+#include "usbhw.h"
+#include "usbcore.h"
+#include "cdc.h"
+#include "cdcuser.h"
+#include "serial.h"
+#include "vcomdemo.h"
+
+
+/*----------------------------------------------------------------------------
+ Initialises the VCOM port.
+ Call this function before using VCOM_putchar or VCOM_getchar
+ *---------------------------------------------------------------------------*/
+void VCOM_Init(void) {
+#if PORT_NUM
+  CDC_Init (1);
+#else
+  CDC_Init (0);
+#endif
+}
+
+
+/*----------------------------------------------------------------------------
+  Reads character from serial port buffer and writes to USB buffer
+ *---------------------------------------------------------------------------*/
+void VCOM_Serial2Usb(void) {
+  static char serBuf [USB_CDC_BUFSIZE];
+         int  numBytesRead, numAvailByte;
+    
+  ser_AvailChar (&numAvailByte);
+  if (numAvailByte > 0) {
+    if (CDC_DepInEmpty) {
+      numBytesRead = ser_Read (&serBuf[0], &numAvailByte);
+
+      CDC_DepInEmpty = 0;
+      USB_WriteEP (CDC_DEP_IN, (unsigned char *)&serBuf[0], numBytesRead);
+    }
+  }
+
+}
+
+/*----------------------------------------------------------------------------
+  Reads character from USB buffer and writes to serial port buffer
+ *---------------------------------------------------------------------------*/
+void VCOM_Usb2Serial(void) {
+  static char serBuf [32];
+         int  numBytesToRead, numBytesRead, numAvailByte;
+
+  CDC_OutBufAvailChar (&numAvailByte);
+  if (numAvailByte > 0) {
+      numBytesToRead = numAvailByte > 32 ? 32 : numAvailByte; 
+      numBytesRead = CDC_RdOutBuf (&serBuf[0], &numBytesToRead);
+#if PORT_NUM
+      ser_Write (1, &serBuf[0], &numBytesRead);
+#else
+      ser_Write (0, &serBuf[0], &numBytesRead);
+#endif    
+  }
+
+}
+
+
+/*----------------------------------------------------------------------------
+  checks the serial state and initiates notification
+ *---------------------------------------------------------------------------*/
+void VCOM_CheckSerialState (void) {
+         unsigned short temp;
+  static unsigned short serialState;
+
+  temp = CDC_GetSerialState();
+  if (serialState != temp) {
+     serialState = temp;
+     CDC_NotificationIn();                  // send SERIAL_STATE notification
+  }
+}
+
+/*----------------------------------------------------------------------------
+  Main Program
+ *---------------------------------------------------------------------------*/
+int main (void) {
+
+  SystemInit();
+
+  VCOM_Init();                              // VCOM Initialization
+
+  USB_Init();                               // USB Initialization
+  USB_Connect(TRUE);                        // USB Connect
+
+  while (!USB_Configuration) ;              // wait until USB is configured
+
+  while (1) {                               // Loop forever
+    VCOM_Serial2Usb();                      // read serial port and initiate USB event
+    VCOM_CheckSerialState();
+    VCOM_Usb2Serial();
+  } // end while                                               
+} // end main ()