[U-Boot-Users] Re: A question of tftpboot
Wolfgang Denk
wd at denx.de
Wed Jul 7 23:33:05 CEST 2004
In message <BAY2-F1Ifd4nI8aOwxu000027d2 at hotmail.com> you wrote:
>
> I am using tftpboot to download the uImage. But I found if I use
> tftpboot 10000 uImage
> The image can be downloaded with no problem. But if I use
> tftpboot 1000 uImage
> Then it shows me execeptions as below:
This is only to be expected. U-Boot follows UNIX design rules:
"UNIX was not designed to stop you from doing stupid things, because
that would also stop you from doing clever things." - Doug Gwyn
> I checked the document but nothing mentioned about the load address of
> tftpboot. My question is, why I can download the image to 10000 while
> downloading to 1000 doesn't work?
Read the documentation again. See for example section "Memory Manage-
ment" in the README which explains pretty clear why overwriting the
memory between 0x0000...0x2000 is NOT a good idea while U-Boot is
running.
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
Earth -- mother of the most beautiful women in the universe.
-- Apollo, "Who Mourns for Adonais?" stardate 3468.1
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