On Wed, Sep 24, 2008 at 10:09 PM, Mark Scoville
<mscoville@unicontrolinc.com> wrote:
> Am I misunderstanding the purpose of the "Use unprotected checksum"
> checkbox? I thought it would calculate the "unprotected checksum" and then
> populate the id locations at 0x200 - 0x203. But if it never makes it into
> the .HEX file it doesn't really do much good. The manuals are a little thin
> on this subject. I did find in the programming spec (DS41227E pg 16) *how*
> the checksum is calculated. But the MPLAB docs don't really say what the
> "Use unprotected checksum" checkbox is supposed to do with it once it is
> calculated.
>

Try export the hex from MPLAB and see if that helps.

Xiaofan
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