From: Gilles Chanteperdrix <gilles.chanteperdrix@xenomai.org>
To: Terry Fryar <terry.fryar@domain.hid>
Cc: xenomai@xenomai.org
Subject: Re: [Xenomai-help] Xenomai IRQ question
Date: Tue, 17 Jan 2012 01:23:55 +0100 [thread overview]
Message-ID: <4F14BF9B.6030706@domain.hid> (raw)
In-Reply-To: <9BF63BF19AC3441EB4E1567EB07B78A0@domain.hid>
On 01/17/2012 12:36 AM, Terry Fryar wrote:
> Using xenomai irq's in user mode on a beaglexm. It appears that irq latency
> is around 44 microseconds from the edge until the isr is executed. Is there
> any way to reduce the latency? Already using 99 as the priority for the isr
> task.
Handle the irq in kernel mode using an RTDM driver.
--
Gilles.
next prev parent reply other threads:[~2012-01-17 0:23 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-01-16 23:36 [Xenomai-help] Xenomai IRQ question Terry Fryar
2012-01-17 0:23 ` Gilles Chanteperdrix [this message]
2012-01-17 16:25 ` Terry Fryar
2012-01-17 19:27 ` Gilles Chanteperdrix
2012-01-17 21:01 ` Terry Fryar
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