piclist 2002\02\06\012226a >
Thread: 16F628 EEPROM write routine
www.piclist.com/techref/microchip/memory.htm?key=eeprom
picon face BY : wouter van ooijen & floortje hanneman email (remove spam text)



> 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

Are you sure your Vcc is rock-steady? Maybe add an elco + a 0.1u really near
to the power/ground pins?

Wouter

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Subject (change) 16F628 EEPROM write routine

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