Audio GPIO shields
Hello,
I'm using the GPIO enabling Kernel from UP:4.15.0-37-generic #40~upboard06-Ubuntu SMP Wed Nov 27 11:29:44 UTC 2019 x86_64 x86_64 x86_64 GNU/Linux
I'm already using an Olmatic UPS shield successfully with my UP2, however I need to further extend the use of the GPIO with an audio shield (stereo audio-IN).
For that purpuse I'm trying to use a Respeaker-2Mic pi-Hat, it is compatible with jetson, R-pi and others, however there are no drivers compatible with this kernel and i'm wasting so much time trying to adapt or even write my own drivers.
TL:DR
Are there any Audio shields compatible with the UP2 by GPIO bus?
Comments
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There are few Audio HAT compatible with UP/UP Squared.
The one better documented is the HiFiBerry DAC+: https://thesofproject.github.io/latest/getting_started/setup/setup_up_2_board.html
Unfortunately on our kernel there might be some I2S patches missing which you will need to include to our kernel 5.0.
You can get the instruction to rebuild kernel with SOF support here:
https://thesofproject.github.io/latest/getting_started/build-guide/build-from-scratch.html#build-linux-kernelunfortunately merging the Audio patches (which are still work in progress) and our GPIO patches has not been done yet, but it will be available later this year (end of Q3/Q4).
