Martin wrote: > 28 lead PIC 18F2220 (SO). If you don't mind me asking, why are you using this part? I compared it to an 18F2221, and don't see any obvious differences, except that the x21 is twice as cheap. Vitaliy -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist