PIC18F got some weird problem?

[mister_e]

F... weird. Did you also erase the PIC before programming it?

Once programmed, read it back, and look the config fuses haven't change to something else.

There's some days like that...

Did you also tried to program your PIC in circuit?

I always set LVP off as this is not the "J" type PIC.

Sorry but it has nothing to do with the J type... or, HEHE i misunderstood something awhile back

[Darrel Taylor]

Do you leave the Epic plugged into the board.

With mine, if I turn on a fluorescent light nearby, it'll reset the PIC.
If it's unplugged, it doesn't happen. But normally I just leave it plugged in and ignore the resets.

Also had a screen saver that does something to the parallel port when it activates. It resets the pic too. Stopped using that screen saver.
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[mister_e]

I already heard some strange stuff... but a screen saver that poll the parallel port

So their XP printer polling PATCH didn't solved the problem?

[NatureTech]

Hey yo steve and darrel,

It's working.I add some config on the inc file (STACK OVERFLOW & LVP OFF)(and that's weird too why that thing come in my way?) and it's working.So do goes for the SPI.It never jump to main loop this time.Thanks a lot guys.I safely blinked the LED'S this time.Talk about screen saver polling LPT's,geee..that's freaky.Lucky for me,i disable screen savers as i hate one =>.But the flourescent,is that for real?.Cuz i do work or test anything i do with my only one table lamp thats couple of inches away from my project desk.I don't face that kind of problem and especially 'resets' on pic?.Hmm..for sake i gotta bear in my mind.But i face a 50hz distortion ( using fluke dmm) but i knew that's a AC current nearby but i do re-calculate.Beside,the nature of flourecent driver (balast ,starter e.t.c) is more toward crude stuff.