Hello, everbody, thanks for your comments and input to my problem, it was very helpful. At the end I decided to simply not use the EEPROM, means there are two softwar= e codes. I think, this is the easiest way, especially for nearly nobody needs mode 2. But I'll think very intensively before using EEPROM the next time. Thanks and best regards Peter --=20 http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .