X-Git-Url: http://git.linex4red.de/pub/USBasp.git/blobdiff_plain/b71ff7c8cd68209a74c8690f4d190cc634ef8fb3..3a85962f94eccfa86a5db46899bddeaceb79fee6:/Demos/Device/ClassDriver/USBtoSerial/USBtoSerial.c

diff --git a/Demos/Device/ClassDriver/USBtoSerial/USBtoSerial.c b/Demos/Device/ClassDriver/USBtoSerial/USBtoSerial.c
index 0c83cd8dd..8ef07f1c3 100644
--- a/Demos/Device/ClassDriver/USBtoSerial/USBtoSerial.c
+++ b/Demos/Device/ClassDriver/USBtoSerial/USBtoSerial.c
@@ -147,8 +147,10 @@ void EVENT_USB_Device_UnhandledControlPacket(void)
  */
 ISR(USART1_RX_vect, ISR_BLOCK)
 {
+	uint8_t ReceivedByte = UDR1;
+
 	if (USB_DeviceState == DEVICE_STATE_Configured)
-	  Buffer_StoreElement(&Tx_Buffer, UDR1);
+	  Buffer_StoreElement(&Tx_Buffer, ReceivedByte);
 }
 
 /** Event handler for the CDC Class driver Line Encoding Changed event.