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Date: Thu, 09 Jan 2014 09:33:43 +0100
From: Gilles Chanteperdrix <gilles.chanteperdrix@xenomai.org>
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Subject: Re: [Xenomai] rtdm_task_init call freezes the system
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To: Nima Nourozi <n.nourozi@gmail.com>
Cc: xenomai@xenomai.org

On 01/09/2014 03:51 AM, Nima Nourozi wrote:
> On Mon, Jan 6, 2014 at 2:48 PM, Gilles Chanteperdrix <
> gilles.chanteperdrix@xenomai.org> wrote:
> 
>> On 01/06/2014 11:47 PM, Nima Nourozi wrote:
>>> I'm not seeing the latency command on my board. Is it part of xenomai?
>> I'm
>>> using buildroot for my filesystem.
>>
>> It may not be installed in /usr/bin
>>
>> Try "xeno latency"
>>
>>
>> --
>>                                                                 Gilles.
>>
> 
> Gilles, good news!
> 
> I was about to report back that the "simplified SPI code" was throwing the
> same exception before I messed around in the kernel a little bit more and
> turned off VFP feature and low and behold the task is working now!!
> Hurray!! I don't know why VFP was causing all this headache but I'm glad
> it's working.
> 
> Thanks everybody for all help!

That is totally unexpected. Turning on or off VFP on AT91 should not
change anything, since this processor does not have a VFP unit, as far
as I can tell, or does it have one?

Please post the simplified code so that I can test it on AT91SAM9263.


-- 
                                                                Gilles.