reseting the PIC when the program counter is corrupted

JIm · Guest

hi,
Does anyone know if there is any FUSE that can be used to reset the PIC18F720 when the program counter is corrupted?
if not, there is any approache one can take to help the system recovery in the event of the PC corrupted?

Also, when code is already flashed in the PIC and PIC works normally, but is there any possibility that the code can be corrupted and the PIC won't work again? if this can be true, then can we use the FUSE WRT to protect this?

Jim

PCM programmer · Joined: 06 Sep 2003 Posts: 21708

Guest · Posted: Tue May 29, 2007 8:14 pm

PCM programmer,
thank you so much for your suggestion. Can anyone explain me what the FUSE WRT can do? I kind of get the idea, but for my knowlegde, I just to want confirm it with the expert.

Thank

ELCouz · Joined: 18 Jul 2007 Posts: 427 Location: Montreal,Quebec

being on the topic ,,,

how to manually reset the pic

#fill_rom 0x00FF

doesn't work because it must be declared at the program startup

lets say that i want to reset the pic via RS232 ... is there a code that will reset the pic or instruction so i can catch it from rs232?

if (blabla == '0')
{
printf(usb_cdc_putc,"\r\nPIC-USB Reset...");
#fill_rom 0x00FF dont work anyway (#
}

thank you !

SET · Joined: 15 Nov 2005 Posts: 161 Location: Glasgow, UK

treitmey · Joined: 23 Jan 2004 Posts: 1094 Location: Appleton,WI USA

ELCouz · Joined: 18 Jul 2007 Posts: 427 Location: Montreal,Quebec

wow that was a quick one Smile

thanks