John, I use ICSP. thanks Andre -----Original Message----- From: piclist-bounces@mit.edu [mailto:piclist-bounces@mit.edu]On Behalf Of John Temples Sent: Friday, November 16, 2007 10:48 AM To: Microcontroller discussion list - Public. Subject: Re: [PIC] PIC looses it's program memory On Fri, 16 Nov 2007, Andre Abelian wrote: > I use pic18f4550 and I noticed that the pic looses it's program memory > I am not sure how many % but it is enough to see things are not working > and this is my 3rd time I started doing hardware trouble shooting and I ended up > reprogramming pic fixed the problem. The only possibility is the part got over heated while > soldering. any idea? Are you using a bootloader or other code that writes to flash? -- John W. Temples, III -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist