Probably best to post your full code in case there's something wrong or missing in that, pin configuration isn't correct.
There are some PIO emulators and debuggers available which may help with testing the PIO code but I have never used those.
I usually use the fact that PIO programs will be reading pins which can be set as outputs from within a test program; control the pins and see what happens. You can use 'push' to return progress reports.
Maybe start with something simpler so you can get more familiar with PIO. This for example pushes a value every second or so -
There are some PIO emulators and debuggers available which may help with testing the PIO code but I have never used those.
I usually use the fact that PIO programs will be reading pins which can be set as outputs from within a test program; control the pins and see what happens. You can use 'push' to return progress reports.
Maybe start with something simpler so you can get more familiar with PIO. This for example pushes a value every second or so -
Code:
from rp2 import PIO, StateMachine, asm_pioimport time@asm_pio()def Delay(): pull(block) # DELAY = pull(); mov(y, osr) # # wrap_target() # repeat { # mov(x, y) # x = DELAY; label("loop") # repeat { jmp(x_dec, "next") # x = x - 1; label("next") # jmp(not_x, "done") # } until (x == 0); jmp("loop") # label("done") # push(); push(block) # # wrap() # } forever;hz = 125_000_000sm = rp2.StateMachine(0, Delay, freq=hz)sm.active(1)sm.put((hz // 3) - 2)while True: sm.get() print("Tick {}".format(time.ticks_ms() // 1000))Statistics: Posted by hippy — Wed Aug 07, 2024 12:19 pm