RE: [avr-chat] Debuging spurious resets in Atmega16 application.

[Robert Dunn]

A mistake ive seen (and made) is to accidently have an interrupt enabled
by setting its registers, but the interrupt not defined in the code with
SIGNAL() or INTERRUPT(), this can cause it to 'reset' everytime since
the interrupt vector has not been correctly setup when the micro jumps
to it. Almost all the problems I have had with similar symptoms are
either interrupt or watchdog related (as mentioned in a previous post),
so I would check there first.

Robert Dunn
 
-----Original Message-----
From: David Shoemaker [mailto:address@hidden 

Does anyone have a good debug method for figuring out why my ATMega16 is

resetting while my application is running (a robot).  I can get 20-30 
seconds of run when it is driving but then I get a reset (I have radio 
communications over serial so I can see the startup banner go by again).
I 
can then send another run command but it resets again shortly (repeat
this 
cycle at will).

avr-gcc (GCC) 3.4.3 WinAvr.

Thanks,
David