Hi ! Someone knows any programmer that supports the PIC 18Fxxx devices ??? I finally got my samples of the 18F452 and saw that my JDM-ICPROG can't = do it. As far as I saw, the programming protocol is very different than = that one of the 16 devices. The 18F devices use a four bit command = followed by a 16 bit data (in/out). As I can see, the protocol works by = sending PIC instructions through the ICSP interface to the target = processor. Anyone knows more about it (more than it is on DS39576A) ???? I think the main problem is only on the software side (IC-PROG in my = case), because the hardware (JDM) will probably work ok with the new = devices. If anyone has some idea or know about a free software/programmer that = supports the 18F devices, please help. Maybe we could do some efforts in building our own programmer for that = (in fact I'm planning to begin with it anyway). If there is anyone = interested .. Thx, F=E1bio Pereira -- http://www.piclist.com hint: PICList Posts must start with ONE topic: [PIC]:,[SX]:,[AVR]: ->uP ONLY! [EE]:,[OT]: ->Other [BUY]:,[AD]: ->Ads