>  Should I expect that building a simple
> programmer which just turns on/off Vdd and Vpp (at high voltage)
> would be sufficient?

It will work for most parts. It will fail on most parts that can
configure /MCLR as input pin *if the code in the chip actually does so*.
It might even fail on some chips without doing this, but IIRC I have not
seen this yet.

Wouter van Ooijen

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Van Ooijen Technische Informatica: www.voti.nl
consultancy, development, PICmicro products

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