Re: problems with U-Boot bootloader, scrambled output



On Sat, 19 Aug 2006 11:03:27 -0700, ron.gerrits wrote:

I'm working on a device called The Neuros OSD (www.theneuros.com). It
is a allround content player based on the DM320 chip. It runs linux
2.6.15 and has a version of the u-Boot bootloader installed.

The device has no display whatsoever, so I've connected my device by a
null modem to my serial port. I tried to use kermit, cu and minicom for
this, but all give the same errors. First I start the serial client.
Then when I boot up the device all scrambled information is displayed
(all kind of weird characters). Then the srambling suddenly stops..
probably the boot process thinks someone pressed a key. Then when I
type 'boot' the srambling starts for half a second and then normal
characters appear (the bootup process of linux)... It looks to me that
the bootloader uses different serial settings. At this moment they are
configured at: 115200 8N1...

I'm really stuck here because I need to configure U-Boot. Anyone any
ideas about what might be the problem? Just shoot, all help is
appreciated!

I don't mean to be a little bit simple - but if uboot is setting a
different baud from the kernel then if u walk down the bauds from 115200
setting each one in turn and rebooting the box you should at some point be
able to see the uboot output ? Are you sure the interface doesn't use
RTS/CTS and uboot simply has faster paced characters ?

Jon


.



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