Could not reversing this bit cause the chip to fry? ----- Original Message ----- From: "Tony Nixon" To: Sent: Tuesday, September 09, 2003 11:46 PM Subject: Re: [PIC:]more beginner troubles > Russell McMahon wrote: > > > > > I found the problem. The project called for a 16c84 and the 16f84a is not > > > the same pinout. > > > > The 16C84 and 16F84a have identical pinouts. However, as I recall the > > security bit has opposite polarity during programming. Try and use 1 > > 16F84/84a if at all possible and adapt programming accordingly - the 16C84 > > is obsolete, more expensive and less available. > > > > RM > > > > -- > > http://www.piclist.com hint: PICList Posts must start with ONE topic: > > [PIC]:,[SX]:,[AVR]: ->uP ONLY! [EE]:,[OT]: ->Other [BUY]:,[AD]: ->Ads > > The code protect on C84 occupies bit 4, on F84(A) code protect occupies > bit 13 down to bit 4. > > The only other difference if the PWRTE - (C) (PWTREN - (F)) bit, which > is reversed. > > regards > > Tony > > -- > http://www.piclist.com hint: PICList Posts must start with ONE topic: > [PIC]:,[SX]:,[AVR]: ->uP ONLY! [EE]:,[OT]: ->Other [BUY]:,[AD]: ->Ads > -- 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