Eric Wolf wrote:
> Hi Everyone!
>
> Something very odd just started happening to my pickit2 programmer about an
> hour ago.  All of the sudden, it's destroying chips.  I'm using the
> PIC16F628A. and the software recognizes that I have inserted a blank micro
> with that model on it.  Program it once, and suddenly the device is
> unrecognizeable.  Interestingly enough though, if I power VDD to the unit,
> it will run the firmware on the chip with what seems to be without issue.  I
> just can't ever access the chip again.  It's very frustrating and was
> wondering if anyone experienced something similar?
>   
Have you disabled mclr in the configuration bits? Doing so can cause 
issues with getting the chip back into program mode (the ICD2 can't do 
it, I think the pickit 2 may be able to if and only if you tell the 
pickit 2 to power the target circuit).
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