> 1. Does Wloader work with an 877A Yes, but there are separate .hex files for 877 and 877A > 2. If yes, should xwisp.py talk to it? Yes > I'm getting "IOError: device "WLdH" is not supported" WLoader should identify itself als WLdr, maybe you have a communication problem? Wouter van Ooijen -- ------------------------------------------- Van Ooijen Technische Informatica: www.voti.nl consultancy, development, PICmicro products -- http://www.piclist.com hint: The list server can filter out subtopics (like ads or off topics) for you. See http://www.piclist.com/#topics