From mboxrd@z Thu Jan 1 00:00:00 1970 From: Wolfgang Grandegger Subject: Re: Bad reading from mcp2515 with j1939 Date: Fri, 15 Apr 2016 18:34:21 +0200 Message-ID: <5711180D.8090407@grandegger.com> References: <136B5347-DD98-4021-98C5-2FD18FC925A4@anemomind.com> <20160415101957.GA22129@airbook.vandijck-laurijssen.be> <4C069C3C-A7B8-4D3D-BA66-0D2140E93996@anemomind.com> <57110047.3040305@grandegger.com> <86B92DF4-DB93-457E-8BFB-7FA1BBBE2B4D@anemomind.com> Mime-Version: 1.0 Content-Type: text/plain; charset=windows-1252; format=flowed Content-Transfer-Encoding: 7bit Return-path: Received: from mailproxy02.manitu.net ([217.11.48.150]:36357 "EHLO mailproxy02.manitu.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751474AbcDOQeZ (ORCPT ); Fri, 15 Apr 2016 12:34:25 -0400 In-Reply-To: <86B92DF4-DB93-457E-8BFB-7FA1BBBE2B4D@anemomind.com> Sender: linux-can-owner@vger.kernel.org List-ID: To: Julien Pilet Cc: Kurt Van Dijck , "linux-can@vger.kernel.org" Hello, Am 15.04.2016 um 18:25 schrieb Julien Pilet: > Hi, > > Thanks a lot for your help, I found the error. There was a resistor that was not supposed to be there (120ohms between CANH and CANL). Removing it solved the problem. Well, the mcp2515 should read wrong data even with improper bus termination. Anyway, have a nice weekend as well. Wolfgang.