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'code protection for 16C6X/7X'
1995\12\21@130623 by Dr Ben Heller

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I'm trying to program a windowed PIC 16C73 using a home-made programmer.
The  code protection bits seem to be set (configuration word reads 3FCF)
and I can't find a way to turn them off.  I've tried zapping the chip in
a UV eraser for over an hour without any success.  I'm aware that the
configuration has to be pretty robust for security reasons, but this
seems excessive.  Is there something else I should be doing?

I'm sure this question has a trivial answer, but I can't find it in the
data books.

Thanks for any assistance.

Ben Heller

1995\12\21@140554 by Brian Read

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You may have to zap them for another hour. I
guess the idea is that you don't set code protect
unless you really mean it. Others on the list and
the MCHIPBBS have reported loooooooong erase times
for the code protect bit in the '7X parts, up to 2
hours.

Brian

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