Connecting and using Zynthian as a MIDI device

Hello Zynthian community and developers,

I’ve been using Zynthian for nearly 2 years, and recently I looked at the v5 mainboard schematic. I noticed that, besides providing power, the USB Type-C port is also used to connect to the USB Type-B port. I’d like to ask:

  • Can that port be used for Zynthian as a MIDI/audio interface, or only for MIDI?

  • If I use a Type-C breakout board, is it correct and sufficient to connect V+ and GND for power, share it with USB Type-B, use the CC pins for PD negotiation, and connect D+ and D− to the USB Type-B? Do I need any additional configuration?

  • In the schematic, I see VBUS connected to pin 7 through a diode. I’m not sure which pin that refers to—can it be ignored?

I don’t have much experience, so I want to make sure before proceeding. I’m using an RPi 5.

Thank you, and have a great day.

Hi @sangto2906, Zynthian V5/V5.1 is seen by an external computer connected to the USB-B (gadget) port as a Midi destination exclusively. No audio transfer on USB-B.

Regards