From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 24255 invoked by alias); 7 Jun 2006 09:00:39 -0000 Received: (qmail 23912 invoked by uid 22791); 7 Jun 2006 09:00:37 -0000 X-Spam-Check-By: sourceware.org Received: from londo.lunn.ch (HELO londo.lunn.ch) (80.238.139.98) by sourceware.org (qpsmtpd/0.31) with ESMTP; Wed, 07 Jun 2006 08:59:55 +0000 Received: from lunn by londo.lunn.ch with local (Exim 3.36 #1 (Debian)) id 1FnttI-0001P8-00; Wed, 07 Jun 2006 10:59:52 +0200 Date: Wed, 07 Jun 2006 09:00:00 -0000 To: J?rgen Lambrecht Cc: ecos-discuss@ecos.sourceware.org Message-ID: <20060607085952.GQ15066@lunn.ch> Mail-Followup-To: J?rgen Lambrecht , ecos-discuss@ecos.sourceware.org References: <445B3D16.1010001@gdsys.de> <20060505122459.GA27092@lunn.ch> <4486946D.4070706@tiscali.be> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <4486946D.4070706@tiscali.be> User-Agent: Mutt/1.5.11+cvs20060403 From: Andrew Lunn X-IsSubscribed: yes Mailing-List: contact ecos-discuss-help@ecos.sourceware.org; run by ezmlm Precedence: bulk List-Subscribe: List-Archive: List-Post: List-Help: , Sender: ecos-discuss-owner@ecos.sourceware.org Subject: Re: [ECOS] redboot with console baudrate 115200 X-SW-Source: 2006-06/txt/msg00065.txt.bz2 On Wed, Jun 07, 2006 at 10:55:09AM +0200, J?rgen Lambrecht wrote: > Hello, > > on my custom board based on eb55 (also AT91M55800), I have the same > problem: Redboot works fine with all baudrates, but ymodem or xmodem not. > The highest speed I can use is 19200 baud. > Also Vince Z. has the same problem. Like him, I now also use TFTP instead. > > The strange thing is that on the eb55 demoboard, 38400 downloads are no > problem. How accurate is your boad rate generator? I think the older AT91 cores had a limited baud rate generator which could not always generate the exact baud rate needed. It could be the error is too big for higher boad rates. Andrew -- Before posting, please read the FAQ: http://ecos.sourceware.org/fom/ecos and search the list archive: http://ecos.sourceware.org/ml/ecos-discuss