Given a board that has the ISP header (4 pins), is it possible to just simply build a box that reprograms the chip? Seems like it would....build the programmer part, and have a eeprom that holds the data....and serial it out, controlled by a PIC of course. I thought a year or two...or three...someone had a device that would do that? >From: Peter Moreton >Reply-To: pic microcontroller discussion list >To: PICLIST@MITVMA.MIT.EDU >Subject: Re: [PIC:] PIC 18F programmer circuit/software? >Date: Fri, 20 Feb 2004 15:15:32 -0000 > >Yes, I'm thinking of the possibility of the application trashing the >boot code. > >-----Original Message----- >From: pic microcontroller discussion list >[mailto:PICLIST@MITVMA.MIT.EDU] On Behalf Of Chris Emerson >Sent: 20 February 2004 15:00 >To: PICLIST@MITVMA.MIT.EDU >Subject: Re: [PIC:] PIC 18F programmer circuit/software? > >On Fri, Feb 20, 2004 at 02:37:39PM -0000, Peter Moreton wrote: > > Yes, bootloaders are neat and quite 'kewl', but I worry that someone > > might manage to overwrite the bootloader code, and end up with a > > non-working board. > >Surely the bootloader doesn't have to allow overwriting itself. Or do >you mean the application code might go mad and overwrite the bootloader? > >Chris > >-- >http://www.piclist.com hint: To leave the PICList >mailto:piclist-unsubscribe-request@mitvma.mit.edu > >-- >http://www.piclist.com hint: To leave the PICList >mailto:piclist-unsubscribe-request@mitvma.mit.edu _________________________________________________________________ Get fast, reliable access with MSN 9 Dial-up. Click here for Special Offer! http://click.atdmt.com/AVE/go/onm00200361ave/direct/01/ -- http://www.piclist.com hint: To leave the PICList mailto:piclist-unsubscribe-request@mitvma.mit.edu