On Mon, 10 Mar 1997, TONY NIXON 54964 wrote:

> I need to make a clock that is accurate. It will be powered by the
> mains, and I thought of using this as a time base as it is a fairly
> stable waveform.
>
> Does anyone else know of a way which will be more accurate?
>
> Regards
>
> Tony.
>
hello,
        i don't think using the mains for refrence frequency will give
you a stable clock. if you are using PIC for the clock the best idea is
to put it in some delay loop and keep on counting the number of passes.
PIC being driven by a crystal oscillator will give much more stable clock.

vishram.

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                |            Vishram A. Sarurkar           |
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                |     another hobbyist turned researcher   |
                |   slogging @ Indian Institute of Science |
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