I want to ICSP a PIC that runs on two batteries (3V nominal). ICSP=20 requires 5V, which can be supplied by the progger. Any clever=20 suggestions on how to combine the battery and the power from the=20 progger? Using a diode is simple, but limits the useful battery life. --=20 Wouter van Ooijen -- ------------------------------------------- Van Ooijen Technische Informatica: www.voti.nl consultancy, development, PICmicro products docent Hogeschool van Utrecht: www.voti.nl/hvu C++ on uC blog: http://www.voti.nl/erblog --=20 http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .