From mboxrd@z Thu Jan 1 00:00:00 1970 From: Frank Smith Date: Mon, 26 May 2003 12:58:56 -0300 Subject: [U-Boot-Users] Loads function and flow control. In-Reply-To: <20030526144611.0765EC6162@atlas.denx.de> Message-ID: <03May26.125207adt.7313@dragon.appliedmicro.ns.ca> List-Id: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: u-boot@lists.denx.de What about in the case where you are loads-ing directly to a flash region? I ran across this problem recently (albeit it with PPCBoot-2.0.0). > -----Original Message----- > From: u-boot-users-admin at lists.sourceforge.net > [mailto:u-boot-users-admin at lists.sourceforge.net]On Behalf Of Wolfgang > Denk > Sent: May 26, 2003 11:46 AM > To: Christophe.LINDHEIMER at fr.thalesgroup.com > Cc: u-boot-users at lists.sourceforge.net > Subject: Re: [U-Boot-Users] Loads function and flow control. > > > Dear Christophe, > > in message > sf.com> you wrote: > > > > Is there any mechanism for software flow control ( XON, XOFF ) ? > > No there is none, and there is no need for one. > > > It seems that loads works fine when I download small files but > get lost with > > big ones. So I fear a flow control problem. > > I don't think so. Even at high baud rates (like 115200 bps) there is > more than enough time to receive characters through the serial line - > remember that U-Boot is strictly single-tasking, so the CPU has > nothing better to do but to wait for characters. > > > What is the problem with minicom for loads ? I think that loads > just expect > > Minicom is broken. > > > to receive ascii data. Is it wrong to send srec file using ALT > S in minicom > > ( and choosing ascii data ) ? > > It's not exactly wrong, but it's calling for a lot of trouble. If you > really must use S-Records, use the "cu" command from the UUCP > package. Alternatively I recommend to use the "loadb" command and > C-Kermit for the download. This is much faster, and more reliable. > > Best regards, > > Wolfgang Denk > > -- > Software Engineering: Embedded and Realtime Systems, Embedded Linux > Phone: (+49)-8142-4596-87 Fax: (+49)-8142-4596-88 Email: wd at denx.de > panic: can't find / > > > ------------------------------------------------------- > This SF.net email is sponsored by: ObjectStore. > If flattening out C++ or Java code to make your application fit in a > relational database is painful, don't do it! Check out ObjectStore. > Now part of Progress Software. http://www.objectstore.net/sourceforge > _______________________________________________ > U-Boot-Users mailing list > U-Boot-Users at lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/u-boot-users >