From 2a28862dcc6a8e5fcf7c8015f67b3eee4716fef6 Mon Sep 17 00:00:00 2001 From: Dean Camera Date: Thu, 26 Nov 2009 11:16:20 +0000 Subject: Make MIDI device demos also turn off the on board LEDs if MIDI Note On messages are sent with a velocity of zero, which some devices use instead of Note Off messages (thanks to Robin Green). --- Demos/Device/LowLevel/MIDI/MIDI.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) (limited to 'Demos/Device/LowLevel') diff --git a/Demos/Device/LowLevel/MIDI/MIDI.c b/Demos/Device/LowLevel/MIDI/MIDI.c index 2cdf71152..cfd81486a 100644 --- a/Demos/Device/LowLevel/MIDI/MIDI.c +++ b/Demos/Device/LowLevel/MIDI/MIDI.c @@ -198,14 +198,15 @@ void MIDI_Task(void) /* Read the MIDI event packet from the endpoint */ Endpoint_Read_Stream_LE(&MIDIEvent, sizeof(MIDIEvent)); - if (MIDIEvent.Command == (MIDI_COMMAND_NOTE_ON >> 4)) + /* Check to see if the sent command is a note on message with a non-zero velocity */ + if ((MIDIEvent.Command == (MIDI_COMMAND_NOTE_ON >> 4)) && (MIDIEvent.Data3 > 0)) { /* Change LEDs depending on the pitch of the sent note */ LEDs_SetAllLEDs(MIDIEvent.Data2 > 64 ? LEDS_LED1 : LEDS_LED2); } else { - /* Turn off all LEDs in response to non-Note On messages */ + /* Turn off all LEDs in response to non Note On messages */ LEDs_SetAllLEDs(LEDS_NO_LEDS); } -- cgit v1.2.3