From: Andreas Schweigstill <andreas@schweigstill.de>
To: u-boot@lists.denx.de
Subject: [U-Boot-Users] problems starting u-boot on AT91RM9200
Date: Mon, 01 Aug 2005 11:54:01 +0200 [thread overview]
Message-ID: <42EDF139.3020008@schweigstill.de> (raw)
In-Reply-To: <44046j$88qcbb@mxip23a.cluster1.charter.net>
Dear David!
David Peters schrieb:
> I've been trying to get u-boot 1.1.3 to start on an AT91RM9200
system, but I
> can't get it to start properly. Once u-boot is copied to memory and
loader
> tries to start it, I get garbage on the screen and that is it. The
problem
> seems to be in lowlevel_initS. When it tries to transfer a setup
value to a
> register, that's when it fails. I've tried just changing one value
and it
> still fails. What am I missing?
Have you checked that the clock rate and divisor settings are okay? You
should use an oscilloscope or logic analyzer in order to find out if the
"garbage" is related to an uncommon baudrate setting of the serial port.
Do you use 32.768kHz and 18.432MHz oscillators?
With best regards
Andreas Schweigstill
--
Dipl.-Phys. Andreas Schweigstill
Schweigstill IT | Embedded Systems
Schauenburgerstra?e 116, D-24118 Kiel, Germany
Phone: (+49) 431 5606-435, Fax: (+49) 431 5606-436
Mobile: (+49) 171 6921973, Web: http://www.schweigstill.de/
prev parent reply other threads:[~2005-08-01 9:54 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-07-29 20:52 [U-Boot-Users] problems starting u-boot on AT91RM9200 David Peters
2005-08-01 9:54 ` Andreas Schweigstill [this message]
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