From: Gilles Chanteperdrix <gilles.chanteperdrix@xenomai.org>
To: Richard Cochran <richardcochran@gmail.com>
Cc: "xenomai@xenomai.org" <xenomai@xenomai.org>
Subject: Re: [Xenomai] Xenomai on Cortex R (or Rreal Time) family
Date: Fri, 10 Oct 2014 17:10:37 +0200 [thread overview]
Message-ID: <5437F6ED.8030102@xenomai.org> (raw)
In-Reply-To: <20141010132552.GA13501@localhost.localdomain>
On 10/10/2014 03:25 PM, Richard Cochran wrote:
> On Thu, Oct 02, 2014 at 04:48:16PM +0200, Gilles Chanteperdrix wrote:
>> On 10/02/2014 04:28 PM, mobin Motallebizadeh wrote:
>>> Hi
>>> can I build xenomai for armv7-r architecture?
>>> I can't see this mentioned anywhere (surprisingly!)
>>> Is it same as other MMU-less archs(nios II ,e.g.)?
>>
>> The first question to ask is: do you have a Linux kernel for this
>> processor? because Xenomai needs Linux to run.
>
> There is some main line support for Cortex-M3, for the Energy Micro
> development kit. See Uwe Kleine-König's tree at
>
> http://git.pengutronix.de/?p=ukl/linux.git
Well, if it is someone's (other than Linus') tree, it is not mainline :-)
I have worked with Cortex-M3 (TI stellaris family), and as far as I
remember, it has very different behaviour from cortex-A for exceptions,
irqs (the irq controller is integrated in the processor irq path, there
is one irq address for each irq in the vector table, much like x86), and
the like. So, at minimum some changes in entry.S would be needed for
Xenomai to run.
--
Gilles.
next prev parent reply other threads:[~2014-10-10 15:10 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-10-02 14:28 [Xenomai] Xenomai on Cortex R (or Rreal Time) family mobin Motallebizadeh
2014-10-02 14:41 ` Lennart Sorensen
2014-10-02 14:52 ` Philippe Gerum
2014-10-02 14:48 ` Gilles Chanteperdrix
2014-10-03 3:50 ` mobin Motallebizadeh
2014-10-03 7:24 ` Gilles Chanteperdrix
2014-10-10 13:25 ` Richard Cochran
2014-10-10 15:10 ` Gilles Chanteperdrix [this message]
2014-10-11 18:54 ` Richard Cochran
2014-10-12 8:29 ` Gilles Chanteperdrix
-- strict thread matches above, loose matches on Subject: below --
2014-10-01 15:02 [Xenomai] I-pipe error when requesting irq that is on omap gpio Lennart Sorensen
2014-10-01 15:28 ` Gilles Chanteperdrix
2014-10-01 15:46 ` Lennart Sorensen
2014-10-01 15:52 ` Lennart Sorensen
2014-10-01 16:02 ` Lennart Sorensen
2014-10-01 17:31 ` Gilles Chanteperdrix
2014-10-01 17:40 ` Lennart Sorensen
2014-10-01 17:46 ` Gilles Chanteperdrix
2014-10-01 17:54 ` Lennart Sorensen
2014-10-01 21:39 ` Gilles Chanteperdrix
2014-10-01 21:43 ` Lennart Sorensen
2014-10-02 13:56 ` [Xenomai] Xenomai on Cortex R (or Rreal Time) family mobin Motallebizadeh
2014-10-02 14:00 ` Gilles Chanteperdrix
2014-10-02 14:22 ` mobin Motallebizadeh
2014-10-02 14:26 ` Lennart Sorensen
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