[bradstewart]

Are you actually using the PRUs? They sound fantastic on paper, but I can't shake the feeling they'd be extremely difficult to actually use.

[mkj]

In my experience the PRU code is fairly straightforward and fun to write, but wrangling Linux drivers/remoteproc/TI SDKs/devicetree etc is a bit of a hassle.

https://github.com/mkj/pru-mic/blob/master/pru/asmpr0.asm is the guts of some code to read from MEMS microphones, for example.