ckchan wrote:
>
> 2) if the prescaler is set to 1:128 for WDT, will this mean the WDT will
> interrupt every 6.5536 ms (20Mhz crystal) ? if so, is it possible to
> have longer period ?

The WDT has it's own internal oscillator and therefore is independant of
the clock used for the chip itself, however, the WDT clock rate will
vary with changes in temp.

You can use the postcaler to get WDT timeouts of around 2 seconds when
set to 1:128. At 1:1 it is about 18mS.


--
Best regards

Tony

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