From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from michelle.lostinspace.de (michelle.lostinspace.de [62.146.248.226]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (Client CN "michelle.lostinspace.de", Issuer "michelle.lostinspace.de" (not verified)) by ozlabs.org (Postfix) with ESMTP id 65DA5DDE32 for ; Wed, 21 Mar 2007 19:34:28 +1100 (EST) Received: from server.idefix.lan (ppp-82-135-67-90.dynamic.mnet-online.de [82.135.67.90]) (authenticated bits=0) by michelle.lostinspace.de (8.13.8/8.13.8) with ESMTP id l2L8YBBa062703 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NO) for ; Wed, 21 Mar 2007 09:34:16 +0100 (CET) (envelope-from idefix@fechner.net) Received: from idefix by server.idefix.lan with local (Exim 4.66 (FreeBSD)) (envelope-from ) id 1HTwGp-000HhU-Fs for linuxppc-embedded@ozlabs.org; Wed, 21 Mar 2007 09:34:11 +0100 Date: Wed, 21 Mar 2007 09:34:11 +0100 From: Matthias Fechner To: linuxppc-embedded@ozlabs.org Subject: Re: Howto read I2C on MPC5200 Lite Message-ID: <20070321083410.GA67297@server.idefix.lan> References: <20070307122430.GA73298@server.idefix.lan> <4b73d43f0703071317o7ae5e531s5eb4b390d41a1b88@mail.gmail.com> <20070309113506.GB6726@server.idefix.lan> <4b73d43f0703090911y3c2898cdmfdb84f8c7f5da8f@mail.gmail.com> <20070309234251.GA68997@server.idefix.lan> <20070311005535.GA39488@server.idefix.lan> <20070315095758.GE14658@moe.telargo.com> <20070317085749.GA75794@server.idefix.lan> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii In-Reply-To: <20070317085749.GA75794@server.idefix.lan> Sender: Matthias Fechner Reply-To: linuxppc-embedded@ozlabs.org List-Id: Linux on Embedded PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Hi, * Matthias Fechner [17-03-07 09:57]: > ok, I can confirm that this patch fixes the problem for me too. > I was now able to read my I2C sensor 97388 successfully and only 2814 > readfailures happened. > That means an errorrate of 2.8% that is ok for me. I found now when it happens or better when it not happens. I boot my icecube board via NFS. If the board is up and I unplug the network I get no read errors. If the network is connected (NFS server responding) I got read errors on I2C with a rate of approximatly 3-4%. Seems to be a problem with the network driver. Best regards, Matthias -- "Programming today is a race between software engineers striving to build bigger and better idiot-proof programs, and the universe trying to produce bigger and better idiots. So far, the universe is winning." -- Rich Cook