X-Git-Url: http://git.linex4red.de/pub/USBasp.git/blobdiff_plain/dcf303762ad6b1401d2dcfd763764b400dcee2f7..b9dd51cd632c1a8cff18f77b4f09c33bdf804768:/Demos/Device/LowLevel/MIDI/MIDI.c?ds=inline

diff --git a/Demos/Device/LowLevel/MIDI/MIDI.c b/Demos/Device/LowLevel/MIDI/MIDI.c
index 84d377854..8aed527db 100644
--- a/Demos/Device/LowLevel/MIDI/MIDI.c
+++ b/Demos/Device/LowLevel/MIDI/MIDI.c
@@ -116,16 +116,17 @@ void MIDI_Task(void)
 {
 	static uint8_t PrevJoystickStatus;
 
-	/* Select the MIDI IN stream */
+	/* Device must be connected and configured for the task to run */
+	if (USB_DeviceState != DEVICE_STATE_Configured)
+	  return;
+
 	Endpoint_SelectEndpoint(MIDI_STREAM_IN_EPNUM);
 
-	/* Check if endpoint is ready to be written to */
 	if (Endpoint_IsINReady())
 	{
 		uint8_t MIDICommand = 0;
 		uint8_t MIDIPitch;
 	
-		/* Get current joystick mask, XOR with previous to detect joystick changes */
 		uint8_t JoystickStatus  = Joystick_GetStatus();
 		uint8_t JoystickChanges = (JoystickStatus ^ PrevJoystickStatus);