Loop in the ClassDriver MIDI device/host demos until there are no more incomming events to process. Only clear the endpoint/pipe bank in the LowLevel MIDI device/host demos when the endpoint is empty after an event read.

Demos/Device/ClassDriver/MIDI/MIDI.c

@@ -71,7 +71,7 @@ int main(void)
 		CheckJoystickMovement();
 
 		MIDI_EventPacket_t ReceivedMIDIEvent;
-		if (MIDI_Device_ReceiveEventPacket(&Keyboard_MIDI_Interface, &ReceivedMIDIEvent))
+		while (MIDI_Device_ReceiveEventPacket(&Keyboard_MIDI_Interface, &ReceivedMIDIEvent))
 		{
 			if ((ReceivedMIDIEvent.Command == (MIDI_COMMAND_NOTE_ON >> 4)) && (ReceivedMIDIEvent.Data3 > 0))
 			  LEDs_SetAllLEDs(ReceivedMIDIEvent.Data2 > 64 ? LEDS_LED1 : LEDS_LED2);

Demos/Device/LowLevel/MIDI/MIDI.c

@@ -204,8 +204,12 @@ void MIDI_Task(void)
 			LEDs_SetAllLEDs(LEDS_NO_LEDS);
 		}
 
-		/* Clear the endpoint ready for new packet */
-		Endpoint_ClearOUT();
+		/* If the endpoint is now empty, clear the bank */
+		if (!(Endpoint_BytesInEndpoint()))
+		{
+			/* Clear the endpoint ready for new packet */
+			Endpoint_ClearOUT();
+		}
 	}
 }
 

Demos/Host/ClassDriver/MIDIHost/MIDIHost.c

@@ -109,7 +109,7 @@ int main(void)
 				CheckJoystickMovement();
 
 				MIDI_EventPacket_t MIDIEvent;
-				if (MIDI_Host_ReceiveEventPacket(&Keyboard_MIDI_Interface, &MIDIEvent))
+				while (MIDI_Host_ReceiveEventPacket(&Keyboard_MIDI_Interface, &MIDIEvent))
 				{
 					bool NoteOnEvent  = ((MIDIEvent.Command & 0x0F) == (MIDI_COMMAND_NOTE_ON  >> 4));
 					bool NoteOffEvent = ((MIDIEvent.Command & 0x0F) == (MIDI_COMMAND_NOTE_OFF >> 4));

Demos/Host/LowLevel/MIDIHost/MIDIHost.c

@@ -193,18 +193,18 @@ void MIDI_Host_Task(void)
 				                                                                           MIDIEvent.Data2, MIDIEvent.Data3);
 				}
 				
-				Pipe_ClearIN();
+				if (!(Pipe_BytesInPipe()))
+				  Pipe_ClearIN();
 			}
 
 			Pipe_SelectPipe(MIDI_DATA_OUT_PIPE);
 
-			static uint8_t PrevJoystickStatus;
-
 			if (Pipe_IsOUTReady())
 			{
 				uint8_t MIDICommand = 0;
 				uint8_t MIDIPitch;
 
+				static uint8_t PrevJoystickStatus;
 				uint8_t JoystickStatus  = Joystick_GetStatus();
 				uint8_t JoystickChanges = (JoystickStatus ^ PrevJoystickStatus);