At 02:43 AM 10/23/2006, Bob Axtell wrote:
>Dwayne Reid wrote:
> >
> > I'd also be interested in seeing just how long those particular PICs
> > are taking to do the write.  Would you have a few minutes to try
> > wiggling a port pin before and after going to sleep to get an
> > estimate of the write time?
> >
> > Just curious . . .
> >
> > dwayne
> >
>I measured 3 F629's; write time at 5V was 2.5ms to 3mS.
>at 3.3V was 4.5ms to 5.5mS. Falls inside of the max value
>Microchip provides in the datasheet.

Many thanks, Bob.  Well clear of the worst case (fastest) WDT 
time-out period, then.  FWIW, I always figure quickest WDT time-out 
to be about 9ms and ensure that it gets tickled quicker than that.

Yeah - I know the data sheet sez 18ms but I've seen it MUCH shorter 
than that under temperature extremes.

dwayne

-- 
Dwayne Reid   <dwayner@planet.eon.net>
Trinity Electronics Systems Ltd    Edmonton, AB, CANADA
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