From mboxrd@z Thu Jan 1 00:00:00 1970 From: Oliver Hartkopp Subject: Re: Problem using Linux CAN Date: Wed, 22 Jul 2015 20:39:18 +0200 Message-ID: <55AFE356.9070906@hartkopp.net> References: <55AFD5DA.7010601@hartkopp.net> Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: 7bit Return-path: Received: from mo4-p00-ob.smtp.rzone.de ([81.169.146.217]:37259 "EHLO mo4-p00-ob.smtp.rzone.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751236AbbGVSjW (ORCPT ); Wed, 22 Jul 2015 14:39:22 -0400 In-Reply-To: Sender: linux-can-owner@vger.kernel.org List-ID: To: Tim Hotfilter Cc: "linux-can@vger.kernel.org" On 22.07.2015 19:52, Tim Hotfilter wrote: > I am using a kernel image from Xilinx git hub This is 4.0 then, right? > and cangen to generate static load. I get this error as result in cangen after a while. Can you send the output from ip -details link show can0 (or whatever canX got stuck) ip -stat link show can0 (or whatever canX got stuck) just to see why the CAN interface gets offline. Do you have a proper CAN setup (with CAN transceivers, real wires, 2x 120 ohms termination, etc) ? Sending CAN frames only works when there's a second/different node with the same bitrate acknowledging the sent frame. Sending without cabling/termination always leads to CAN controllers that feel sad :-) Regards, Oliver