From mboxrd@z Thu Jan 1 00:00:00 1970 From: Stephan Hoffmann Date: Fri, 02 Dec 2011 19:33:47 +0100 Subject: [Buildroot] Real time Linux implementation In-Reply-To: <20111201221840.00174379@skate> References: <20111201221840.00174379@skate> Message-ID: <4ED91A0B.10403@relinux.de> List-Id: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: buildroot@busybox.net Am 01.12.2011 22:18, schrieb Thomas Petazzoni: > Le Thu, 1 Dec 2011 11:27:37 -0800, > Morten Jensen a ?crit : > >> Hello, >> We are using Buildroot on an ARM based development platform from IC-BOARD: >> http://www.ic-board.de/product_info.php?info=p163_STK-ADB3000---ICnova-SAM9G45-XC3S700AN-OEM.html >> >> Does anybody have any experience with implementing Real Time OS >> functionality in the Linux Buildroot system or can you guide us to someone >> that may be able to help or consult in this effort ? > Yes. First thing to find out is what you need in terms of real-time : > > *) A vanilla Linux kernel with preemption enabled and proper process > priorities ; > > *) A Linux kernel patched with PREEMPT_RT I have good experiences with this patch, but did not try it with a ARM. It's not that much effort and integrates well with buildroot. Look here: https://rt.wiki.kernel.org/ and here: https://www.osadl.org/Latest-Stable-Realtime.latest-stable-realtime-linux.0.html for further information. @Peter and Thomas, what do you think about adding the PREEMPT_RT patch as a config option to buildroot? Kind regards Stephan -- reLinux - Stephan Hoffmann Am Schmidtgrund 124 50765 K?ln Tel. +49.221.95595-19 Fax: -64 www.reLinux.de sho at reLinux.de