stef mientki wrote:
> So most likely the PIC was damaged.
> 
> On monday I wanted to demonstrate the failing DUTs to a collegae , ...
> ... and you'll never guess, but the second DUT behaved compeletely normal !!

> Or has anyone seen such behaviour before ?

Just had it happen this week - a short in a power supply (I think) blew 
a rectifier diode; I replaced that, but I'm guessing the 7805-style 
regulator connected to it was damaged at the time as well, because a 
couple days later its output voltage went nuts and it got very hot.  A 
PIC16F688 was connected to the regulator at the time, and it died too - 
no response from it when connected to the programmer.

Several days after that, I could program and verify the PIC just fine. 
But at least one GPIO pin was apparently dead for good - swapping in a 
new PIC worked fine.
-- 
Timothy J. Weber
http://timothyweber.org
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