#include "MIDI.h"\r
\r
/** Main program entry point. This routine configures the hardware required by the application, then\r
- * starts the scheduler to run the application tasks.\r
+ * enters a loop to run the application tasks in sequence.\r
*/\r
int main(void)\r
{\r
/* Select the MIDI OUT stream */\r
Endpoint_SelectEndpoint(MIDI_STREAM_OUT_EPNUM);\r
\r
- /* Check if endpoint is ready to be read from, if so discard its (unused) data */\r
+ /* Check if a MIDI command has been received */\r
if (Endpoint_IsOUTReceived())\r
- Endpoint_ClearOUT();\r
+ {\r
+ USB_MIDI_EventPacket_t MIDIEvent;\r
+ \r
+ /* Read the MIDI event packet from the endpoint */\r
+ Endpoint_Read_Stream_LE(&MIDIEvent, sizeof(MIDIEvent));\r
+ \r
+ /* Check to see if the sent command is a note on message with a non-zero velocity */\r
+ if ((MIDIEvent.Command == (MIDI_COMMAND_NOTE_ON >> 4)) && (MIDIEvent.Data3 > 0))\r
+ {\r
+ /* Change LEDs depending on the pitch of the sent note */\r
+ LEDs_SetAllLEDs(MIDIEvent.Data2 > 64 ? LEDS_LED1 : LEDS_LED2);\r
+ }\r
+ else\r
+ {\r
+ /* Turn off all LEDs in response to non Note On messages */\r
+ LEDs_SetAllLEDs(LEDS_NO_LEDS);\r
+ }\r
+ \r
+ /* Clear the endpoint ready for new packet */\r
+ Endpoint_ClearOUT();\r
+ }\r
}\r