WAITCNT'ing in 2 Cogs & Conflict?

PJAllen

I have a couple of things going on, in two cogs,
both use a WAITCNT delay.

I guess they need to be synchronised, there's a conflict.
Changing the values can make for interesting results.

It chugs along successfully for several (5) iterations
and then... it konks out, freezes.

Attaching my dilemma.
How can I harmonise the two?

Rayman

Looks like ausgang calls itself... That will likely overflow the stack, I think...

Phil Pilgrim (PhiPi)

Both Augang and Rotate call themselves recursively without an end condition. You're getting stack overflow. Perhaps you meant this instead:

PUB Ausgang  
  repeat
    outa [7..0] := ausbus
    waitcnt(150_000 + cnt)

PUB rotate
  repeat
    stgcntr := 0
    repeat 8
      ausbus := stage[stgcntr]
      stgcntr := stgcntr + 1
      waitcnt(clkfreq / 8 + cnt)

-Phil

PJAllen

Ja!
That's it.
I have to remember about "repeat" instead of the Method's name (a-la "GOTO", etc.)

Thanks!