From manningc2@actrix.gen.nz Mon Apr 12 00:41:17 2010 Received: from pop.scorch.co.nz ([203.167.210.162] helo=scorch.co.nz) by stoneboat.aleph1.co.uk with smtp (Exim 4.69) (envelope-from ) id 1O16mA-0005Sd-6Q for balloon@balloonboard.org; Mon, 12 Apr 2010 00:41:16 +0100 Received: (qmail 5883 invoked by uid 453); 11 Apr 2010 23:41:06 -0000 X-Virus-Checked: Checked by ClamAV on scorch.co.nz Received: from Unknown (HELO linux-dual-head.local) (10.14.210.25) by scorch.co.nz (qpsmtpd/0.40) with ESMTP; Mon, 12 Apr 2010 11:41:06 +1200 From: Charles Manning To: balloon@balloonboard.org Date: Mon, 12 Apr 2010 11:41:06 +1200 User-Agent: KMail/1.9.10 References: <20100409170638.GS7110@dream.aleph1.co.uk> In-Reply-To: <20100409170638.GS7110@dream.aleph1.co.uk> MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit Content-Disposition: inline Message-Id: <201004121141.06325.manningc2@actrix.gen.nz> X-SA-Exim-Connect-IP: 203.167.210.162 X-SA-Exim-Mail-From: manningc2@actrix.gen.nz X-Spam-Checker-Version: SpamAssassin 3.2.5 (2008-06-10) on stoneboat.aleph1.co.uk X-Spam-Level: X-Spam-Status: No, score=-1.9 required=4.5 tests=AWL,BAYES_00,SPF_NEUTRAL autolearn=no version=3.2.5 X-SA-Exim-Version: 4.2.1 (built Wed, 25 Jun 2008 17:14:11 +0000) X-SA-Exim-Scanned: Yes (on stoneboat.aleph1.co.uk) Cc: Wookey Subject: Re: [Balloon] Openocd status X-BeenThere: balloon@balloonboard.org X-Mailman-Version: 2.1.11 Precedence: list List-Id: Balloon List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sun, 11 Apr 2010 23:41:17 -0000 By some remarkable coincidence I opened this as I got of the phone too someone having very problems on a a different board which had worked fine a couple of weeks ago. On Saturday 10 April 2010 05:06:39 Wookey wrote: > And how come the CPLD boards work when chained but not stand-alone? Hooking them into a chain redrives or modifies the signals. This sounds very much like a signal integrity issue. If the scan chains are wrong then look at what the all the lines are doing. Don't forget to check the reset line too. -- Charles