From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 15252 invoked by alias); 5 Jul 2005 07:28:47 -0000 Mailing-List: contact ecos-discuss-help@ecos.sourceware.org; run by ezmlm Precedence: bulk List-Subscribe: List-Archive: List-Post: List-Help: , Sender: ecos-discuss-owner@ecos.sourceware.org Received: (qmail 15220 invoked by uid 22791); 5 Jul 2005 07:28:42 -0000 Received: from londo.lunn.ch (HELO londo.lunn.ch) (80.238.139.98) by sourceware.org (qpsmtpd/0.30-dev) with ESMTP; Tue, 05 Jul 2005 07:28:42 +0000 Received: from lunn by londo.lunn.ch with local (Exim 3.36 #1 (Debian)) id 1DphqM-0002pb-00; Tue, 05 Jul 2005 09:27:46 +0200 Date: Tue, 05 Jul 2005 07:28:00 -0000 To: Fabian Scheler Cc: Oliver Munz , ecos-discuss@sources.redhat.com Message-ID: <20050705072746.GC30398@lunn.ch> Mail-Followup-To: Fabian Scheler , Oliver Munz , ecos-discuss@sources.redhat.com References: <006101c580e1$b3a48df0$5e188481@cadpad> <69dd805e05070500163304862@mail.gmail.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <69dd805e05070500163304862@mail.gmail.com> User-Agent: Mutt/1.5.9i From: Andrew Lunn Subject: Re: [ECOS] Timecritical interrupt-debuging ... printf in DSR's ... Cyg_Scheduler_Implementation::rem_thread() ... cyg_assert_fail() X-SW-Source: 2005-07/txt/msg00043.txt.bz2 On Tue, Jul 05, 2005 at 09:16:44AM +0200, Fabian Scheler wrote: > Hi, > > > I don't know if it's allowed to use the buffered IO from ISR and DSR's. If > > everybody know's if it should work or not in threory, let me know.... Im > > also intressted in other hints how to debug driveres... > > well, I don't know the exact implementation of buffered IO in eCos, > but buffered IO always is blocking (if you want to ensure that no data > gets lost), and blokcing operations are never allowed within an ISR or > a DSR. Correct. You can use the infrastructure trace functions and instramentation functions which are safe when writting to a buffer. Or you can implement your own buffering which is ISR/DSR safe. Andrew -- Before posting, please read the FAQ: http://ecos.sourceware.org/fom/ecos and search the list archive: http://ecos.sourceware.org/ml/ecos-discuss