Fix USBtoSerial device demos -- ensure the UDR1 register contents is read in under...

[pub/USBasp.git] / Demos / Device / ClassDriver / USBtoSerial / USBtoSerial.c

diff --git a/Demos/Device/ClassDriver/USBtoSerial/USBtoSerial.c b/Demos/Device/ClassDriver/USBtoSerial/USBtoSerial.c
index 0c83cd8..8ef07f1 100644 (file)
--- a/Demos/Device/ClassDriver/USBtoSerial/USBtoSerial.c
+++ b/Demos/Device/ClassDriver/USBtoSerial/USBtoSerial.c
@@ -147,8 +147,10 @@ void EVENT_USB_Device_UnhandledControlPacket(void)
  */\r
 ISR(USART1_RX_vect, ISR_BLOCK)\r
 {\r
+       uint8_t ReceivedByte = UDR1;\r
+\r
        if (USB_DeviceState == DEVICE_STATE_Configured)\r
-         Buffer_StoreElement(&Tx_Buffer, UDR1);\r
+         Buffer_StoreElement(&Tx_Buffer, ReceivedByte);\r
 }\r
 \r
 /** Event handler for the CDC Class driver Line Encoding Changed event.\r