Thank you both for looking into this.
I have added a nop [30] to my example to run with clkdiv 1.0, closer reflecting my real application. Same effect, so I think we can rule out clock issues.
Experimenting with pio_sm_set_dmactrl,seems to fix the issue for the simple example, and based on very cursory tests also my real code.
edit: typos
I have added a nop [30] to my example to run with clkdiv 1.0, closer reflecting my real application. Same effect, so I think we can rule out clock issues.
Experimenting with pio_sm_set_dmactrl,
Code:
pio_sm_set_dmactrl(iq_pio, iq_sm, false, 0xc0000108)edit: typos
Statistics: Posted by astuder — Wed Jan 07, 2026 7:35 pm