Allo BOSS does not work as master

Help and Support Help
#1

Hello!

I can’t manage to get Allo BOSS work as master, it always works as slave. From DAC list I select Allo BOSS. In config.txt I see “dtoverlay=allo-boss-dac-pcm512x-audio”, but Allo BOSS works as slave. Are some additional changes needed?
Thanks.

Volumio Information

Volumio Version: 2.873
Hardware: RPI3
DAC: Allo BOSS

#2

How do you know it works in slave mode?

#3

Thank you for reply.

  1. pcm5122 does not generate BCLK and LR signals, but RPI does generate them. But it should be vice versa.
  2. By means of logic analyzer I see that RPI does not try configuring pcm5122 as master (does not configure PLL, BCLK and LR as outputs and so on), instead RPI sets pcm5122’s PLL source to BCLK.