On Sat, Jul 11, 2009 at 12:17 PM, Heinz Czychun <hczychun@lks.net> wrote:

>        Yes, sorry poor wording. Timer 0 is running, but when I
> reprogram the PIC
> with Timer 1 enabled (both running and interrupting), Timer 0 also
> starts interrupting
> even with the INTCON,T0IE bit cleared.
>

Hi Heinz,

You do not have the T0IE enabled, but you still check the T0IF in your ISR
routine. T0IF is independent from interrupt, it only tells if the Timer0 was
overflowed or not. What happens is that you get an interrupt from Timer1,
but then the ISR routine realizes that the Timer0 had an overflow as well
therefore you treat the interrupt as it was generated by the Timer0.

Tamas
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