Hi all, Just some days ago have finished a board working with a PIC16F877, I am using the EpicWin and a homemade board to program the chip. I had some troubles using the RB3 pin as an IO port, in that way had to cut the connection with that pic and use the RB7. I tried for many times to set off the LVP option in the programmer to solve the problem but without luck. Is there another way to apply high voltage to that pic durin programation time ? May I do that in another way ? Regards, Augusto, OA4CVT -- http://www.piclist.com hint: PICList Posts must start with ONE topic: [PIC]:,[SX]:,[AVR]: ->uP ONLY! [EE]:,[OT]: ->Other [BUY]:,[AD]: ->Ads