Interrupt based timer outputting wrong frequency

[Darrel Taylor]

In the first part of the ISR, it doesn't clear the interrupt flag if the value isn't 10.
So it exits and re-enters the ISR 10 times really fast.

Once it gets to 10, it toggles the pin and finally clears the flag, which all happens from a single interrupt.

[Dick Ivers]

Darrel,
Thanks, it's working now ... getting 5 hz toggle. Added this line at the beginning of the ISR routine:

BCF PIR1,1 ;clear tmr2 interrupt flag