Connecting Pisound to SoC (Zynqberry)

Pisound Projects
1

Greetings,
I’ve been building a synthesizer platform that is based on an FPGA. I recently moved it to the Trenz Electronics Zynqberry which is an SoC (two ARMs and FPGA fabric) in the form factor of a Raspberry Pi. I would really like to use a Pisound as my audio platform but it would require my having some pretty deep knowledge of its internals:

  • What DAC it uses and which GPIOs it communicates through (both control and data).
  • Which GPIOs the MIDI signals go through.

I’m aware that I could paw through the device tree overlays to figure this out but I thought to ask first and do it with some help.

Thank you in advance,
Michael

2

Hi, see https://blokas.io/pisound/docs/audio/ for information on chips used, keep https://pinout.xyz/ open for reference, check out this post for used pins descriptions, and finally, check out the device tree and kernel module. This should give the complete picture of how to port Pisound to any platform.

Raspberry Pi’s hardware documentation may be helpful in making sense of all of this.