Implementing a class-compliant USB MIDI device

[Beul]

Hi everyone,

I'm trying to developp a MIDI USB class compliant device with the nrf52840 DK.

I'm beginner about USB developpement and I have only basics about MIDI class definition.

I'm trying to modify the usbd_audio example of the SDK 15.1 to describe my MIDI class. Unfortunately, I'm not sure that I understand how the Audio class module works, especially the macro APP_USBD_AUDIO_MIDI_STREAMING_DSC and APP_USBD_AUDIO_GLOBAL_DEF and how to manage them to fully describe my MIDI class.

Do you have an example ? If not, what is the best way to implement this feature ? For the moment, I just need that my computer detect my device as MIDI device and send a MIDI control change to my PC from my developpement board.

Thank you in advance,

Mathieu

[Edvin]

Hello Tim,

I am sorry, I haven't looked much into the USB MIDI since I last answered on this thread. Did you try to change the implementation to MIDI? Maybe Beul made some progress?

[tim11]

Hi Edvin,

Yes, tried to change it to midi streaming, but cant at at the moment work out how to fix the corresponding descriptions.

[Edvin]

Hello,

Please create a new ticket where you describe your progress and issues with the MIDI implementation.

BR,

Edvin

[Andrew Mowry]

I would love to see an example of USB MIDI if anyone has it working. Using a single chip for both Bluetooth MIDI and USB MIDI would be very useful.