On Aug 24, 2008, at 11:11 PM, Forrest Christian wrote:

> Yes, I knew I forgot to mention something like that...   I'm  
> counting a
> signal on the order of 10Mhz....  and the comparator output has to be
> really fast - much faster than you could implement even in a very  
> tight
> loop of assembly.

Can you live with a variance of up to 3 counts from when the  
comparator is supposed to trigger?  If so, use the input to *clock* a  
PIC (would have to be at least 8 pins, I don't think the 10F's  
support external clocks).  The program would be two long, macro- 
generated delays in a loop, with one each BSF and BCF instructions at  
the appropriate places.
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