Hi, I've just been trying to get example1.c (from the MPLAB-C examples pack) to work on a PIC18F252. Problem is, although the '252 LED flasher hexfile from www.voti.nl will program into the chip (and, crucially, run) fine, the output hexfile from C18 won't do anything. MPLAB-SIM steps through the compiled C source OK. I've followed the instructions in the C18 "Getting Started" guide to the letter :-/ How do you set the config fuses on an 18F252 using C18? I'm using a WISP628 programmer and the BumbleBee programming software. Does anyone have a known-working LED flasher program for C18 lying around on their HDD that I could use as an example? Thanks. -- Phil. | Acorn Risc PC600 Mk3, SA202, 64MB, 6GB, philpem@dsl.pipex.com | ViewFinder, 10BaseT Ethernet, 2-slice, http://www.philpem.dsl.pipex.com/ | 48xCD, ARCINv6c IDE, SCSI ... Be *excellent* to each other -- http://www.piclist.com hint: PICList Posts must start with ONE topic: [PIC]:,[SX]:,[AVR]: ->uP ONLY! [EE]:,[OT]: ->Other [BUY]:,[AD]: ->Ads