#define __ENDPOINT_STREAM_H__\r
\r
/* Includes: */\r
- #include <avr/io.h>\r
#include <avr/pgmspace.h>\r
#include <avr/eeprom.h>\r
#include <stdbool.h>\r
#define __PIPE_STREAM_H__\r
\r
/* Includes: */\r
- #include <avr/io.h>\r
#include <avr/pgmspace.h>\r
#include <avr/eeprom.h>\r
#include <stdbool.h>\r
* - Fixed random enumeration failure while in device mode due to interrupts causing the Set Address request to exceed maximum timings
* - Fixed MIDI_Host_Flush() not aborting early when the specified MIDI host interface was not configured
* - Fixed MIDI class driver send routines silently discarding packets if the endpoint or pipe is busy (thanks to Robin Green)
+ * - Fixed USBtoSerial and XPLAINBridge demos discarding data from the PC if the send buffer becomes full
*
* \section Sec_ChangeLog100807 Version 100807
* <b>New:</b>
*
* \section Sec_InDevelopment Latest In-Development Source Code
* Issue Tracker: http://www.lufa-lib.org/tracker \n
+ * Bazaar Access: http://www.lufa-lib.org/bzr \n
* SVN Access: http://www.lufa-lib.org/svn \n
* Git Access: http://www.lufa-lib.org/git \n
* Mercurial Access: http://www.lufa-lib.org/hg \n
for (;;)
{
- /* Read bytes from the USB OUT endpoint into the USART transmit buffer */
- int16_t ReceivedByte = CDC_Device_ReceiveByte(&VirtualSerial_CDC_Interface);
- if (!(ReceivedByte < 0) && !(RingBuffer_IsFull(&USBtoUSART_Buffer)))
- RingBuffer_Insert(&USBtoUSART_Buffer, ReceivedByte);
+ /* Only try to read in bytes from the CDC interface if the transmit buffer is not full */
+ if (!(RingBuffer_IsFull(&USBtoUSART_Buffer)))
+ {
+ int16_t ReceivedByte = CDC_Device_ReceiveByte(&VirtualSerial_CDC_Interface);
+ /* Read bytes from the USB OUT endpoint into the USART transmit buffer */
+ if (!(ReceivedByte < 0))
+ RingBuffer_Insert(&USBtoUSART_Buffer, ReceivedByte);
+ }
+
/* Check if the UART receive buffer flush timer has expired or the buffer is nearly full */
RingBuff_Count_t BufferCount = RingBuffer_GetCount(&USARTtoUSB_Buffer);
if ((TIFR0 & (1 << TOV0)) || (BufferCount > 200))
{
+ /* Clear flush timer expiry flag */
TIFR0 |= (1 << TOV0);
/* Read bytes from the USART receive buffer into the USB IN endpoint */
if (USB_DeviceState != DEVICE_STATE_Configured)
return;
- /* Read bytes from the USB OUT endpoint into the UART transmit buffer */
- int16_t ReceivedByte = CDC_Device_ReceiveByte(&VirtualSerial_CDC_Interface);
- if (!(ReceivedByte < 0) && !(RingBuffer_IsFull(&USBtoUART_Buffer)))
- RingBuffer_Insert(&USBtoUART_Buffer, ReceivedByte);
+ /* Only try to read in bytes from the CDC interface if the transmit buffer is not full */
+ if (!(RingBuffer_IsFull(&USBtoUART_Buffer)))
+ {
+ int16_t ReceivedByte = CDC_Device_ReceiveByte(&VirtualSerial_CDC_Interface);
+ /* Read bytes from the USB OUT endpoint into the UART transmit buffer */
+ if (!(ReceivedByte < 0))
+ RingBuffer_Insert(&USBtoUART_Buffer, ReceivedByte);
+ }
+
/* Check if the UART receive buffer flush timer has expired or buffer is nearly full */
RingBuff_Count_t BufferCount = RingBuffer_GetCount(&UARTtoUSB_Buffer);
if ((TIFR0 & (1 << TOV0)) || (BufferCount > 200))
{
+ /* Clear flush timer expiry flag */
TIFR0 |= (1 << TOV0);
/* Read bytes from the UART receive buffer into the USB IN endpoint */