From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 21450 invoked by alias); 20 Jan 2014 20:04:40 -0000 Mailing-List: contact ecos-discuss-help@ecos.sourceware.org; run by ezmlm Precedence: bulk List-Id: List-Subscribe: List-Archive: List-Post: List-Help: , Sender: ecos-discuss-owner@ecos.sourceware.org Received: (qmail 21434 invoked by uid 89); 20 Jan 2014 20:04:39 -0000 Authentication-Results: sourceware.org; auth=none X-Virus-Found: No X-Spam-SWARE-Status: No, score=-1.5 required=5.0 tests=AWL,BAYES_00,RCVD_IN_DNSWL_NONE,SPF_NEUTRAL autolearn=no version=3.3.2 X-HELO: gateway06.websitewelcome.com Received: from gateway06.websitewelcome.com (HELO gateway06.websitewelcome.com) (69.93.154.20) by sourceware.org (qpsmtpd/0.93/v0.84-503-g423c35a) with ESMTP; Mon, 20 Jan 2014 20:04:38 +0000 Received: by gateway06.websitewelcome.com (Postfix, from userid 5007) id 32A4F70663D61; Mon, 20 Jan 2014 14:04:37 -0600 (CST) Received: from ham05.websitewelcome.com (unknown [184.173.222.181]) by gateway06.websitewelcome.com (Postfix) with ESMTP id 8B5D370663A0D for ; Mon, 20 Jan 2014 14:04:36 -0600 (CST) Received: by ham05.websitewelcome.com (Postfix, from userid 500) id 7A0AF4104AB1C; Mon, 20 Jan 2014 14:04:36 -0600 (CST) Received: from montecarlo.websitewelcome.com (montecarlo.websitewelcome.com [192.185.12.42]) by ham05.websitewelcome.com (Postfix) with ESMTP id 6B9D741049EBE for ; Mon, 20 Jan 2014 14:04:33 -0600 (CST) Received: from [85.225.29.229] (port=51354 helo=[192.168.0.112]) by montecarlo.websitewelcome.com with esmtpsa (TLSv1:DHE-RSA-CAMELLIA256-SHA:256) (Exim 4.80) (envelope-from ) id 1W5L5E-0002HI-RL; Mon, 20 Jan 2014 14:04:33 -0600 Message-ID: <52DD814D.8080607@siva.com.mk> Date: Mon, 20 Jan 2014 20:04:00 -0000 From: =?UTF-8?B?IklsaWphIEtvY2hvIFvQmNC70LjRmNCwINCa0L7Rh9C+XSI=?= User-Agent: Mozilla/5.0 (X11; Linux i686; rv:24.0) Gecko/20100101 Thunderbird/24.2.0 MIME-Version: 1.0 To: Valentin BOUSSON , ecos-discuss@ecos.sourceware.org References: <52DD4B0B.8080105@belphegor.eu> In-Reply-To: <52DD4B0B.8080105@belphegor.eu> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit X-BWhitelist: no X-Source-Sender: ([192.168.0.112]) [85.225.29.229]:51354 X-Source-Auth: ilijak+siva.mk X-Email-Count: 1 X-Source-Cap: c2l2YW1rO2JpYmltYW47bW9udGVjYXJsby53ZWJzaXRld2VsY29tZS5jb20= X-IsSubscribed: yes Subject: Re: [ECOS] Specific needs on stm32 X-SW-Source: 2014-01/txt/msg00016.txt.bz2 Hi Valentin On 20.01.2014 17:12, Valentin BOUSSON wrote: > Hi all, I'm fresh and new on this mailing list, > and in the world of real embedded systems, actually. > > I bought a STM32F4 - DISCOVERY board to play with, and I succeeded to > compile and run a lot of simple, led / LCD / audio project I found > online. I was using the Sourcery arm compile chain for that. > > But my next ambition is little harder, I would like to adapt one of my > existing program, based on a plugin-mechanism, on my stm32. So, I was > looking for an RTOS being able to manage a simple system, in the Flash > memory, or in an external SD card. > > > > > I tried to set up the compilation environnement described in the big > pdf describing eCos, and on the Download & Installation section on the > website, I tried all the day, without any result. > Do you have some good links / tuto / advices to share ? > You need to get eCos from CVS (that I prefer to call "the rolling release"). Here you'll find info how to access CVS http://ecos.sourceware.org/anoncvs.html Also you can try eCos arm-eabi GNU tools - test release 4.6.3 http://ecos.sourceware.org/ml/ecos-discuss/2012-06/msg00047.html that comes with support for hardware floating point. > > My questions are : > Is it possible to use the compilation chain generated by > summon-arm-toolchain, to compile eCos itself ? I haven't tried it. > > What about the programs I would like to run on top of eCos ? > What would you like to run? With this little information, I can just say that porting POSIX applications is relatively straight forward. > If I store my programs in the Flash, how can I reprogram the flash to > change only the program, and not the kernel ? > Kernel is in general being linked with application. However it is possible to create dynamically loadable libraries. Also, you can install RedBoot and then use it for loading applications. > IYO, is eCOS the best OS to choose for my project ? // Are its dynamic > loading mechanism easy to use ? > No one can tell you what's best for your project. But IMHO, eCos is worth for consideration. I encourage you to try it. Have fun Ilija -- Before posting, please read the FAQ: http://ecos.sourceware.org/fom/ecos and search the list archive: http://ecos.sourceware.org/ml/ecos-discuss