Subject: Re: Debugging / SPL-levels / AT91RM9200 success
To: Toru Nishimura <>
From: Sami Kantoluoto <>
List: port-arm
Date: 03/07/2007 03:06:07
On Wed, Mar 07, 2007 at 09:52:29AM +0900, Toru Nishimura wrote:
> >> failing to catch or forgetting interrupt notification with your case.
> >
> > The GPIO pin was at high level so I think the interrupt has not
> > been totally missed because it's a active low signal in I/O mode.
> And, it might  be turned out HW limitation, or "feature" which is
> not your fault, in the end.  Not all SoC is designed perfect.
> In fact designers just comb to collect pieces from IP library they do not
> understand, and it's SW developer who notice design errors after real
> chips are made and delivered on his desk.  The most common solution

Yes, we've found quite many hardware bugs from many different MCUs. No matter
who the manufacturer is (Atmel, Philips, Motorola, ...).

But I think that's not the case this time because we've been using the CF
interface on our own embedded OS.