>The question I have is this: once the PIC is powered up, can it be affected
>by light.  I would certainly think not, but my earlier problem hints that it
>can.  I just don't know the answer.

Yes.

I have seen all my windowed chips behave slightly differently, from
changing frequency (with the 8-pin devices on internal RC) to losing memory
in RAM.  All kinds of things.

Here's what to do with all those 5" disk write-protect tabs.  Use them as
EPROM window shades!

Andy

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Andy Kunz - Montana Design - 409 S 6th St - Phillipsburg, NJ 08865
          Hardware & Software for Industry & R/C Hobbies
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