initial usb

[rapper.git] / new_cmsis / usb / vcomdemo.c

diff --git a/new_cmsis/usb/vcomdemo.c b/new_cmsis/usb/vcomdemo.c
new file mode 100755 (executable)
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+++ b/new_cmsis/usb/vcomdemo.c
@@ -0,0 +1,124 @@
+/*----------------------------------------------------------------------------\r
+ *      Name:    vcomdemo.c\r
+ *      Purpose: USB virtual COM port Demo\r
+ *      Version: V1.20\r
+ *----------------------------------------------------------------------------\r
+ *      This software is supplied "AS IS" without any warranties, express,\r
+ *      implied or statutory, including but not limited to the implied\r
+ *      warranties of fitness for purpose, satisfactory quality and\r
+ *      noninfringement. Keil extends you a royalty-free right to reproduce\r
+ *      and distribute executable files created using this software for use\r
+ *      on NXP Semiconductors LPC microcontroller devices only. Nothing else\r
+ *      gives you the right to use this software.\r
+ *\r
+ * Copyright (c) 2009 Keil - An ARM Company. All rights reserved.\r
+ *---------------------------------------------------------------------------*/\r
+\r
+#include "../LPC17xx.h"\r
+#include "lpc_types.h"\r
+\r
+#include "usb.h"\r
+#include "usbcfg.h"\r
+#include "usbhw.h"\r
+#include "usbcore.h"\r
+#include "cdc.h"\r
+#include "cdcuser.h"\r
+#include "serial.h"\r
+#include "vcomdemo.h"\r
+\r
+/* Example group ----------------------------------------------------------- */\r
+/** @defgroup USBDEV_USBCDC    USBCDC\r
+ * @ingroup USBDEV_Examples\r
+ * @{\r
+ */\r
+\r
+/*----------------------------------------------------------------------------\r
+ Initialises the VCOM port.\r
+ Call this function before using VCOM_putchar or VCOM_getchar\r
+ *---------------------------------------------------------------------------*/\r
+void VCOM_Init(void) {\r
+#if PORT_NUM\r
+  CDC_Init (1);\r
+#else\r
+  CDC_Init (0);\r
+#endif\r
+}\r
+\r
+\r
+/*----------------------------------------------------------------------------\r
+  Reads character from serial port buffer and writes to USB buffer\r
+ *---------------------------------------------------------------------------*/\r
+void VCOM_Serial2Usb(void) {\r
+  static char serBuf [USB_CDC_BUFSIZE];\r
+         int  numBytesRead, numAvailByte;\r
+\r
+  ser_AvailChar (&numAvailByte);\r
+  if (numAvailByte > 0) {\r
+    if (CDC_DepInEmpty) {\r
+      numBytesRead = ser_Read (&serBuf[0], &numAvailByte);\r
+\r
+      CDC_DepInEmpty = 0;\r
+         USB_WriteEP (CDC_DEP_IN, (unsigned char *)&serBuf[0], numBytesRead);\r
+    }\r
+  }\r
+\r
+}\r
+\r
+/*----------------------------------------------------------------------------\r
+  Reads character from USB buffer and writes to serial port buffer\r
+ *---------------------------------------------------------------------------*/\r
+void VCOM_Usb2Serial(void) {\r
+  static char serBuf [32];\r
+         int  numBytesToRead, numBytesRead, numAvailByte;\r
+\r
+  CDC_OutBufAvailChar (&numAvailByte);\r
+  if (numAvailByte > 0) {\r
+      numBytesToRead = numAvailByte > 32 ? 32 : numAvailByte;\r
+      numBytesRead = CDC_RdOutBuf (&serBuf[0], &numBytesToRead);\r
+#if PORT_NUM\r
+      ser_Write (1, &serBuf[0], &numBytesRead);\r
+#else\r
+      ser_Write (0, &serBuf[0], &numBytesRead);\r
+#endif\r
+  }\r
+\r
+}\r
+\r
+\r
+/*----------------------------------------------------------------------------\r
+  checks the serial state and initiates notification\r
+ *---------------------------------------------------------------------------*/\r
+void VCOM_CheckSerialState (void) {\r
+         unsigned short temp;\r
+  static unsigned short serialState;\r
+\r
+  temp = CDC_GetSerialState();\r
+  if (serialState != temp) {\r
+     serialState = temp;\r
+     CDC_NotificationIn();                  // send SERIAL_STATE notification\r
+  }\r
+}\r
+\r
+/*----------------------------------------------------------------------------\r
+  Main Program\r
+ *---------------------------------------------------------------------------*/\r
+int main (void) {\r
+  SystemInit();\r
+\r
+  VCOM_Init();                              // VCOM Initialization\r
+\r
+  USB_Init();                               // USB Initialization\r
+  USB_Connect(TRUE);                        // USB Connect\r
+\r
+  while (!USB_Configuration) ;              // wait until USB is configured\r
+\r
+  while (1) {                               // Loop forever\r
+    VCOM_Serial2Usb();                      // read serial port and initiate USB event\r
+    VCOM_CheckSerialState();\r
+       VCOM_Usb2Serial();\r
+  } // end while\r
+} // end main ()\r
+\r
+/*\r
+ * @}\r
+ */\r