From mboxrd@z Thu Jan 1 00:00:00 1970 Subject: Re: why so slowly when use serial to download S-record file? From: Kenneth Johansson To: caixupeng Cc: Linuxppc embedded In-Reply-To: <001701c292aa$b061a4c0$33690b0a@DBKQW41X> References: <001701c292aa$b061a4c0$33690b0a@DBKQW41X> Content-Type: text/plain Date: 25 Nov 2002 09:56:05 +0100 Message-Id: <1038214565.542.27.camel@spawn> Mime-Version: 1.0 Sender: owner-linuxppc-embedded@lists.linuxppc.org List-Id: The reason is that ppcboot/u-boot only support a very simple version of kermit where the sender waits for an ack before sending another block. kermit should have a mode that is as efficient as some of the [x|y|z]-modem maybe you could add that code to u-boot. On Sat, 2002-11-23 at 05:42, caixupeng wrote: > > Dear all, > > my ppcboot is 1.2.1 > and I set baud rate to 38400, but it need almost 4 hours to download a 2 Mega bytes file. > what's wrong ? > > my board is ebony. > > Who know the reason? > > please tell me. > > thanks! > > edmoon > > -- Kenneth Johansson Ericsson AB Tel: +46 8 404 71 83 Borgafjordsgatan 9 Fax: +46 8 404 72 72 164 80 Stockholm kenneth.johansson@etx.ericsson.se ** Sent via the linuxppc-embedded mail list. See http://lists.linuxppc.org/