Scott Horton wrote:
>
> I'm a beginner but have mastered RS232, LED displays, and switch
> de-bouncing on PIC's (84's) so I'm getting the hang of it.
>
> Could someone give me a simple (if possible) explanation of the what is
> the "pre-scaler" and maybe an practical example (not code unless that
> helps) with and without it's use?
>
> Thanks very much in advance.
>
> Scott Horton
If you use a one byte prescaler on portpin a,4 you can accept up to 255
pulses before the processor is interupted. You can then preload the
timer/prescaler with a constant and let it increment from there till
rollover thus generating an interupt only after n externally generated
events. Or so I gather. Tony M.