On Mon, 10 Mar 1997, David W. Duley wrote:

> In a message dated 97-03-10 01:03:50 EST, you write:
>
> << 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
>
>  >Does anyone else know of a way which will be more accurate? (note
this !!!)

        the mains frequency might be stable in u.s. (i didn't think on this
fact). i think it's apparent from tony's mail that he wanted an accurate
clock. so i suggested using a high frequency crystal oscillator (about 20
Mhz the time base of the PIC and not 32.khz etc). since the
frequency is fairly large i don't think variations in temp. etc. will affect
the stability of the clock. as tony'd seeked i just suggested another way of
doing the same thing. obviously the alternative is much more expensive, which
is the price paid for a stable clock.
 regards,
vishram.
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Life is like an onion: you peel off layer after layer, then you find
there is nothing in it.
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                +------------------------------------------+
                |            Vishram A. Sarurkar           |
                |           ^^^^^^^^^^^^^^^^^^^^^          |
                |     another hobbyist turned researcher   |
                |   slogging @ Indian Institute of Science |
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                |    e-mail:vish@isu.iisc.ernet.in.        |
                |    Phone:+91 (080) 3092487.              |
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