Yuxian,
do you have enough time to check the RCON register (assuming this chip
has one)? That might give you some idea of what's going on. Also, have
you looked at VDD and MCLR with a 'scope? Maybe there are spikes or
something?
Regards,
- Marcel

On Jan 10, 2008 10:25 PM, Yuxian Yao <yaoyuxian@gmail.com> wrote:
> I'm developmeng [PIC]18F8527 with ht-PICC C compiler.  The PIC is
> programmed ok but always restart himself after several lines of code.
> I disabled WDT, BrownOut, Vdd = 5V.  but the problem still exist.  I
> can't figure out why this happens.  Can any one help me?
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