[etherlab-users] ethercat + xenomai on arm926 cpu system

[Thomas Bitsky, Jr.]

Have you tried using rt-preempt? Someone on this forum recommended it to
me, and the results were fantastic. This could be wrong, but my impression
on the xenomai site was that they were trying to integrate rt-preempt
because their performance was slower.

On Wed, Aug 29, 2012 at 12:20 PM, paluan.luca at tiscali.it <
paluan.luca at tiscali.it> wrote:

> Hello everyone,
> I'm trying to develop a real time server on the arm
> (arm926) cpu and on a real time linux with xenomai.
> Unfortunatly even
> the basic examples seem not to work on such a system: the real time
> task is set to work with a 2ms period like the 2 servos connected to
> the ethercat net (even though 1ms would definetly be the best).
> With a
> bare example I immediatly receive warning from ethercat master of
> skipped frames and if the real task has to do something more the server
> crashes...
> I tried various compile time optimizations and  I tried to
> give up with real time task using hrtimer without results.
> My system is
> using the generic ethernet driver too, but could anyone give me some
> advice about whether the cpu power is enough to manage the ethercat
> driver in a real time environment?
> Thanks in advance, Best Regards Luca
>
>
>
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-- 
Thomas C. Bitsky Jr.
Lead Developer and Application Engineer
ADC | automateddesign.com
P: 630-783-1150 F: 630-783-1159 M: 630-632-6679
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