Implement a timer without using an interrupt

[coyotegd]

I am not sure why you mention "PR2 is initialized to 255 on reset". I have no idea what you are trying to tell me.

However, your explanation and advice to change my Counter trigger to 76 did the trick with the addition of resetting the Counter to 0 when I turn the timer on.

Works like a charm.

Ken

[Bruce]

When Timer2 counts up to the value in PR2, PIR1.1 is set, and Timer2 is
reset to 0. It doesn't over flow when it rolls-over from 255 to 0 like other
8-bit timers.

The time is takes for PIR1.1 to be set =;

(prescaler)*(PR2)*(postscaler)*(instruction cycle time).

Since PR2 is initialized to 255, and you're using both prescaler & postscaler
set to 16, then (assuming a 4MHz osc) 16*255*16*1uS* your Counter value
of 76 = 4.9 seconds.

Look in the Timer2 section of your data sheet for the whole story..;o}

Try placing PR2 = 127 in the startup section of your code to see the effect.