juan manuel garofalo wrote:
>
> Greetings,
>
> i apologize in advance for my hardware illiteracy...
>
> i'm using a 16f627.
>
> Suppose i setup timer1 to be incremented by an external pulse (asynchronous
> counter mode), so:
>
> will the pic be able to count frequencies greater than its own clock ?
>
> If i run the pic at 4mhz, and a 7.5 mhz frequency is fed to the counter,
> will i find the number 750 in the counter's registers after 100 uS ? Or i
> can't resolve a freq. > 4mhz using a 4mhz device ?
>
> Thank you.

If the external clock signal is used, it's frequency should be at least
1/4 of the frequency that drives the PIC.

--
Best regards

Tony

mICros
http://www.bubblesoftonline.com
mailto:sales@bubblesoftonline.com

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