On Wed, Apr 26, 2006 at 01:47:39PM -0700, Picdude wrote: > Having been bitten by EEPROM failure on the PICs in the the past, I ended up using a serial EE and doing most of this, after discussion on and advice from this list. I also flipped bits in the copies of each byte so in case the EE all fails to a certain state, it won't be identified as valid data. Flipped bits? Clever, and smart, I wouldn't have thought of that one. Do you think the stand-alone serial EEPROMs are less prone to failure? I mean, the few ones I've seen datasheets for, say the same reliability figures as PICs, but all the same... Be really nice if some MFG made an EEPROM with wear-leveling tech built into it for a cheap price... Of course, that's what flash memory is really. -- pete@petertodd.ca http://www.petertodd.ca -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist