USB support LPC1768

USB support LPC1768

/**
  *****************************************************************************
  * @title   USB_CDC.c
  * @author  Lean966
  * @date    14 Jul 2011
  * @brief   USB Device as CDC for LPC17xx, the character are recived and tra
  *          smitted on the simulated VCOM .
  *          Note: the same example, could b
  *          e used for the LPC17xx USB CDC stack.
  *******************************************************************************
  */
////// The above comment is automatically generated by CoIDE ///////////////////

#include "LPC17xx.h"
#include "lpc17xx_clkpwr.h"
#include "lpc_types.h"

/*----------------------------------------------------------------------------
Include USB Stack
 *---------------------------------------------------------------------------*/
#include "usb.h"
#include "usbcfg.h"
#include "usbhw.h"
#include "usbcore.h"
#include "cdc.h"
#include "cdcuser.h"
#include "serial.h"


void wait_ms(int ms)
{
	int i;
	INT_32 k;
	for (i=0;i< ms;i++){
		for(k=0;k<8600;) k++; //experimental
	}

}



void LPC_USB_CDC()
{
	static char serBuf [USB_CDC_BUFSIZE];
	int  numBytesToRead, numBytesRead, numAvailByte;

	USB_Init();
	USB_Connect(TRUE);                        // USB Connect
	while (!USB_Configuration) ;              // wait until USB is configured
	while(1)
	{
		CDC_OutBufAvailChar (&numAvailByte); //get buffer from serial/usb
		if (numAvailByte > 0)
		{
		  	numBytesToRead = numAvailByte > 32 ? 32 : numAvailByte; //check if not bigger than 32B
		    numBytesRead = CDC_RdOutBuf (&serBuf[0], &numBytesToRead);
		    USB_WriteEP (CDC_DEP_IN, (unsigned char *)&serBuf[0], numBytesRead); //write what was read
		    USB_WriteEP (CDC_DEP_IN, "dziendobry", 10); //just testing
		}
		else
		{
			wait_ms(50);
			USB_WriteEP (CDC_DEP_IN, "Waiting.", 8);
		}
	}
}

int main(void)
{
	SystemInit();
	LPC_USB_CDC();
}