On Wed, 18 Jul 2001, Roman Black wrote:

> Michael A. Powers wrote:
> >
> > Hello,
> >
> > I have been experimenting with TMR0 and the prescaler to provide timing delays in my
> > application.  It seems pretty easy to do if you want short delays.  However, when
> > you are using a 4MHz clock, it seems to get difficult to get long delays, say like > 1s.
>
> > At 4MHz, that's orders of magnitude away from a 1s delay, and I would like to have
> > delays of 24 hrs or more!
>
>
> Hi Michael, I have some sample code on my web page:
> http://centauri.ezy.net.au/~fastvid/one_sec.htm

I can vouch for this approach.  I used a C implementation in a job I am
just finishing up, and it's perfect.  Bob Ammerman and Roman Black, I owe
you each a beer or three.  My clock now has NO drift other than whatever
the crystal introduces -- I think we can live with 50PPM! 8-)

Dale
--
A train stops at a train station.  A bus stops at a bus station.
On my desk I have a workstation...

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