> > Do we really need to isolate the Vdd supply from the rest 
> of the circuit
> > so it can be pulled up to 5V for ICSP?
> 
> Yes.

I would say: only if the rest of circuit won't tolerate 5V, or the
progger can't suply the required current. 

Wouter van Ooijen

-- -------------------------------------------
Van Ooijen Technische Informatica: www.voti.nl
consultancy, development, PICmicro products
docent Hogeschool van Utrecht: www.voti.nl/hvu
 

-- 
http://www.piclist.com PIC/SX FAQ & list archive
View/change your membership options at
http://mailman.mit.edu/mailman/listinfo/piclist