Question on MPC83xx interrupts

Scott Wood scottwood at freescale.com
Wed Apr 23 04:52:44 EST 2008


On Tue, Apr 22, 2008 at 08:51:23PM +0200, Andre Schwarz wrote:
> Scott Wood schrieb:
> >On Tue, Apr 22, 2008 at 07:36:48PM +0200, Andre Schwarz wrote:
> >  
> >>thanks - any Idea how to figure out where the BAD comes from ?
> >>Is it simply an unhandled/unacked one ?
> >>    
> >
> >It generally happens when an interrupt is requested, and the core 
> >takes
> >the exception, but then the interrupt source deasserts itself.
> >
> >-Scott
> So this is not bad at all if you have a device with self-clearing 
> interrupts ...

Right, as long as you don't get too many of them I wouldn't worry.

-Scott



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