this post was submitted on 26 Jul 2023
5 points (100.0% liked)

raspberrypi

3247 readers
4 users here now

Community about the single-board computers, micro-controllers and related projects.

https://www.raspberrypi.com/

Other RaspberryPi communities on Lemmy

founded 4 years ago
MODERATORS
[email protected]
5
Pico pio expression eval clock cycles not listed in spec sheet (lemmy.world)
submitted 1 year ago by [email protected] to c/[email protected]
0 comments fedilink hide all child comments
 

I have a project where I need to make square waves that change frequency based on input on other gpio pins. My issue is that the spec sheet doesn't list the time it takes to evaluate a pio expression (it should be in table 364) which I ofc would need to know to generate an accurate square wave.

Concretely what I'm asking is how many cycles mov y, (x / 2) would take

Support has essentially told me to post on the forum and hope an (off the clock) engineer will dedicate their free time to helping me.

no comments (yet)
sorted by: hot top controversial new old
there doesn't seem to be anything here