On 2011-02-20 15:44, IB Peter Feucht wrote: > Question: Does anybody have information about the reliability of eeprom > content? > How is it possible that eeprom content changes (electric field, magnetic > fields or or or) > Are any other locations in the EEPROM being written on a regular=20 basis? If so, it can degrade the retention time of the non-rewritten=20 locations. A solution is to re-write the entire EEPROM contents=20 occasionally. Joe --=20 http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .