> The Question:
> Using a 16F628 (or 16F876 ) can I, load a piece of code into
> an area of
> memory and code protect it. Then at a later stage load some
> new code into
> the remaining memory, which can make calls to the protected
> code.

No. Protection = protect everything, so no new reads or writes unless
you erase (everything) first.

Check the 18f PICs where this is possible to some extent. I don't know
about the 16f8xA and 16f8xxA, might be possible with them too.

Wouter van Ooijen

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

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