EEToolTest2.c

  // Pseudo-code. May not compile or work
  for (;;)
	{
		// Check for host data
		uint16_t byteCount = CDC_Device_BytesReceived(&EETool_CDC_Interface);
		byteCount = MIN(byteCount,BUFF_SIZE-1);
		
		if (byteCount>BUFF_SIZE)
		{
			FatalError();
		}
		
		if (byteCount>0)
		{
			// Read all data from host
			int i;
			for (i=0; i<byteCount; i++)
			{
				int16_t value = CDC_Device_ReceiveByte(&EETool_CDC_Interface);
				if (value>=0)
				{
					gCommBuffer[i] = (uint8_t)value;
				}
			}
			
			// Echo it back
			CDC_Device_SendData(&EETool_CDC_Interface, gCommBuffer, byteCount);
		}
		
		CDC_Device_USBTask(&EETool_CDC_Interface);
		USB_USBTask();
	}