It sounds to me as if you are setting the code protect bit(s). This
will make the chip's contents unreadable. Try performing a "bulk
erase" if you can find that option and if it will allow you to do so.

Sean


On Sat, Nov 14, 2009 at 1:41 PM, Eric Wolf <eric.n5ebw@gmail.com> wrote:
> Hi Everyone!
>
> Something very odd just started happening to my pickit2 programmer about =
an
> hour ago. =A0All of the sudden, it's destroying chips. =A0I'm using the
> PIC16F628A. and the software recognizes that I have inserted a blank micro
> with that model on it. =A0Program it once, and suddenly the device is
> unrecognizeable. =A0Interestingly enough though, if I power VDD to the un=
it,
> it will run the firmware on the chip with what seems to be without issue.=
 =A0I
> just can't ever access the chip again. =A0It's very frustrating and was
> wondering if anyone experienced something similar?
>
> Thanks,
>
> -Eric
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