Not returning from an interrupt

[Peter]

I have some code for controlling a WS2811 strip.
I have a tactile switch connected to RA0 for control and I have set up an interrupt handler:

    Set WPUA0 On
    Set IOCAN0 on
    On Interrupt PortBChange Call IntSW2

The interrupt occurs and the code jumps to the handler, however it doesn't seem to do anything afterwards.

sub IntSW2
  StopTimer 0   'Timer0 interrupt is used for data flow control
  IntOff
  set IOCIF Off  'Clear IF for IOC

  repeat PixelCount
            WS2812SendData ( 0 )    'Turn off all the LEDs
  end repeat

  wait 3 s

  Inton

end Sub

Have I done something wrong in my code? Once interrupt handler has completed should it just go back to the main code where it left off?
I tried adding a sub (doBounce) at the end of IntSW2 and doBounce does not run when the interrup occurs, however if I put IntSW2 at the top of my code it runs fine.

Full code attached.

[kent_twt4]

I am not familiar with the ws2812 code or library. I think the repeat is the problem, perhaps an overflow of the stack there? Set a flag in the interrupt, like ClearLeds = True. Then use a conditional IF ClearLeds = True Then .....Clear the flag and deal with the repeat and wait in Main.

[Anobium]

This looks like you are using the same repeat variable - PixcelCount

[Peter]

Yes, the idea was to turn the LEDs off for 3 seconds just as a simple visual indication that the interrupt was working.

See below though vv

[Peter]

It's not the Repeat, or the Wait - I have made the interrupt sub essentially empty and it doesn't return to the main code:

sub IntSW2
    set IOCIF Off
end Sub

[Anobium]

You need clear the correct flag. Datasheet is needed.

[Peter]

SOLVED

You need to clear the IOC flag from RA.0, which is IOCAF0, not the IOCIF flag.

sub IntSW2

set IOCAF0 Off
Wait 3 s

end Sub