> Can you give an example of a flash PIC where M'chip recommends this? > I looked through the programming specs once, and only found this > distinction for PROM based chips. Admittedly, my search wasn't > exhaustive. IIRC it is in (almost?) all programming specifications. In which one did you not find it? Wouter van Ooijen -- ------------------------------------------- Van Ooijen Technische Informatica: www.voti.nl consultancy, development, PICmicro products docent Hogeschool van Utrecht: www.voti.nl/hvu -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist