Hi, I've put together a Wisp628 which I can connect to, but it's unable to read the ID off the target chip. When I measure MCLR, it's at 8v instead of the expected 13V. I've switched out all the parts in the charge pump, and even gone so far as building a new board, but I get the same thing. The voltages on C6/7/8's positive terminals are 8, 9.5, and 9V respectively while the pump is active. While I see about 3V on pin 9 of the PIC, I don't see anything on 6 or 5. Since I don't have a scope, I don't know if those last numbers are meaningful, though. I'm not sure where to go from here... I don't have any extra 16F628-20's to try, unless a 16F648 can be used in its place. Thanks, Sean -- Sean A. Walberg http://www.ertw.com -- http://www.piclist.com hint: PICList Posts must start with ONE topic: [PIC]:,[SX]:,[AVR]: ->uP ONLY! [EE]:,[OT]: ->Other [BUY]:,[AD]: ->Ads