Interrupt?? problem

[Bruce]

Hi Scorp,

Place disable before your interrupt sub-routine label, and place resume before
enable at the end. Resume inserts retfie. Enable tells PBP to start inserting
code to continue testing for the interrupt condition again. If you reverse the
two, you're jumping out of the interrupt service routine to test for the
interrupt condition you're already servicing.

If you're using ADCIN, you don't need to mess with ADCON0. PBP handles this
one for you automatically. TRIS, ADCON1, (ANSEL where applicable) must
already be setup before using ADCIN, so make sure you set whatever A/D
input pin you're using up as an input first.

[scorpion]

I will try it first thing tomorow, but one question: If I move the disable and enable how will it ever get run? wouldnt it just skip right past those??? maybe im not sure exactly what you mean:

disable 'disable interrupts
ticker:
intcon.2 = 0 'clear flag
TMR0 = 129 'Set Preload
tick = tick + 1 'keeps track of times it was interrupted
if tick = onsteps then low pwmout 'if its where it needs to be to be switched, switch it
if tick = 100 then 'if its at the end
if current > offmax then high pwmout'and its above hysterisys then turn reset the PWM
tick = 0 'and restart the ticker
endif
resume 'Restart the main program from where it left off
enable 'enable interrupts

I really cant see how this would work. i am assuming that i misunderstood.....

[Bruce]

Disable tells PBP to STOP auto-insertion of interrupt checking code. Placing
disable "before" the interrupt service label doesn't actually disable interrupts.
It just tells PBP to stop automatically placing interrupt checking code between
each BASIC command. Your interrupt will work either way.

ON INTERRUPT GOTO ? tells PBP where the interrupt service routine is located.

Resume inserts RETFIE right at the end of your interrupt handler "code", and
that's where you want RETFIE to be.

Enable tells PBP to start auto-inserting interrupt testing code after each
BASIC instruction, and you want this at the very end or after RESUME. Just
like the ON INTERRUPT example shown in the manual.

[scorpion]

gotcha.
thanks for the help!
-scorp