From chris@martin-jones.com Wed Mar 19 18:37:14 2008 Received: from cheyenne.vervehosting.com ([75.126.59.90]) by stoneboat.aleph1.co.uk with esmtps (TLS-1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.63) (envelope-from ) id 1Jc39n-00067v-1p for balloon@balloonboard.org; Wed, 19 Mar 2008 18:37:14 +0000 Received: from cheyenne.vervehosting.com ([75.126.59.90]:43607 helo=[8.83.40.1]) by cheyenne.vervehosting.com with esmtpsa (TLSv1:AES256-SHA:256) (Exim 4.68) (envelope-from ) id 1Jc39e-0002rx-Rq; Wed, 19 Mar 2008 14:36:28 -0400 Message-ID: <47E15D6C.2040802@martin-jones.com> Date: Wed, 19 Mar 2008 18:37:32 +0000 From: Chris Jones User-Agent: Thunderbird 2.0.0.12 (Windows/20080213) MIME-Version: 1.0 To: balloon@balloonboard.org X-Enigmail-Version: 0.95.6 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit X-AntiAbuse: This header was added to track abuse, please include it with any abuse report X-AntiAbuse: Primary Hostname - cheyenne.vervehosting.com X-AntiAbuse: Original Domain - balloonboard.org X-AntiAbuse: Originator/Caller UID/GID - [47 12] / [47 12] X-AntiAbuse: Sender Address Domain - martin-jones.com X-SA-Exim-Connect-IP: 75.126.59.90 X-SA-Exim-Mail-From: chris@martin-jones.com X-Spam-Checker-Version: SpamAssassin 3.2.3 (2007-08-08) on stoneboat.aleph1.co.uk X-Spam-Level: X-Spam-Status: No, score=-2.6 required=5.0 tests=BAYES_00 autolearn=ham version=3.2.3 X-SA-Exim-Version: 4.2.1 (built Tue, 09 Jan 2007 17:23:22 +0000) X-SA-Exim-Scanned: Yes (on stoneboat.aleph1.co.uk) Cc: david@itechnic.co.uk Subject: [Balloon] Balloon 3 Samosa progress X-BeenThere: balloon@balloonboard.org X-Mailman-Version: 2.1.9 Precedence: list List-Id: Balloon List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 19 Mar 2008 18:37:14 -0000 Wookey and I have just spent the afternoon looking at Samosa support on Balloon 3. There were a few gotchas in the the FPGA's VHDL which were stopping it working, most notably that the Samosa pins were connected to the Wishbone master module for some reason. They're disconnected now, but I believe that nothing's currently using Wishbone so it's a problem we can solve later on if required. The minor version number of the FPGA is now 02. The bus seems to work OK talking to the Toby Churchill hardware we have here. I've modified bootldr so that the memory timing for nCS4 is a little slower: the original timing was too fast for the Minipug displays so we were getting unreliable results from them. It's still theoretically too fast but seems to work in a cursory test. The minipug kernel module isn't yet happy but Wookey's going to look into that. The modified bootldr and VHDL are checked into svn. Chris -- Chris Jones - chris@martin-jones.com Martin-Jones Technology Ltd, makers of Solidlights 148 Catharine Street, Cambridge, CB1 3AR, UK Phone +44 (0) 1223 655611 Fax +44 (0) 870 112 3908 http://www.solidlights.co.uk/