X-Git-Url: http://git.linex4red.de/pub/USBasp.git/blobdiff_plain/071e02c6b6b4837fa9cf0b6d4c749994e02638d7..d66a925786e4e57713a2c902cdffe7269db43226:/Demos/Device/ClassDriver/AudioOutput/AudioOutput.c

diff --git a/Demos/Device/ClassDriver/AudioOutput/AudioOutput.c b/Demos/Device/ClassDriver/AudioOutput/AudioOutput.c
index 622e423c6..cf2eb2d30 100644
--- a/Demos/Device/ClassDriver/AudioOutput/AudioOutput.c
+++ b/Demos/Device/ClassDriver/AudioOutput/AudioOutput.c
@@ -93,7 +93,7 @@ void ProcessNextSample(void)
 	/* Check if the sample reload timer period has elapsed, and that the USB bus is ready for a new sample */
 	if ((TIFR0 & (1 << OCF0A)) && Audio_Device_IsSampleReceived(&Speaker_Audio_Interface))
 	{
-		/* Clear the sample reload timer */
+		/* Clear the sample reload timer compare flag, ready for the next interval */
 		TIFR0 |= (1 << OCF0A);
 
 		/* Retrieve the signed 16-bit left and right audio samples, convert to 8-bit */
@@ -156,7 +156,7 @@ void EVENT_USB_Device_Connect(void)
 	/* PWM speaker timer initialization */
 	TCCR3A  = ((1 << WGM30) | (1 << COM3A1) | (1 << COM3A0)
 	        | (1 << COM3B1) | (1 << COM3B0)); // Set on match, clear on TOP
-	TCCR3B  = ((1 << WGM32) | (1 << CS30));  // Fast 8-Bit PWM, Fcpu speed
+	TCCR3B  = ((1 << WGM32) | (1 << CS30));  // Fast 8-Bit PWM, F_CPU speed
 #endif
 }
 
@@ -188,10 +188,11 @@ void EVENT_USB_Device_Disconnect(void)
 /** Event handler for the library USB Configuration Changed event. */
 void EVENT_USB_Device_ConfigurationChanged(void)
 {
-	LEDs_SetAllLEDs(LEDMASK_USB_READY);
-	
-	if (!(Audio_Device_ConfigureEndpoints(&Speaker_Audio_Interface)))
-	  LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
+	bool ConfigSuccess = true;
+
+	ConfigSuccess &= Audio_Device_ConfigureEndpoints(&Speaker_Audio_Interface);
+
+	LEDs_SetAllLEDs(ConfigSuccess ? LEDMASK_USB_READY : LEDMASK_USB_ERROR);
 }
 
 /** Event handler for the library USB Unhandled Control Request event. */