this post was submitted on 26 Jul 2023
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Pico pio expression eval clock cycles not listed in spec sheet (self.raspberrypi)
submitted 1 year ago by fungalfae to c/[email protected]
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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.

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