Jinx wrote: > > > > written-to locations revert to FF. This is not a good thing > > > > > Weird is the word. > > It almost seems as if there's some sort of bulk erase being > done, but that's simply not possible in a routine that doesn't > have any kind of loop or repetitive call on the EEPROM. I've > tried two PICs with the same result. Obviously I'm reluctant > to point the finger at my code, but it must be the culprit. That > said, I'm still not 100% confident about the programming > regime on the F628. Never had problems with the F84 > > -- > http://www.piclist.com hint: To leave the PICList > mailto:piclist-unsubscribe-request@mitvma.mit.edu Hi Jinx, Have you got the exact code. I have quite a few 16F62x chips that I can try it out on. -- Best regards Tony mICros http://www.bubblesoftonline.com mailto:sales@bubblesoftonline.com -- http://www.piclist.com hint: To leave the PICList mailto:piclist-unsubscribe-request@mitvma.mit.edu