From: Wolfgang Denk <wd@denx.de>
To: u-boot@lists.denx.de
Subject: [U-Boot-Users] Statically assigned IP addresses
Date: Wed, 14 Jan 2004 09:06:30 +0100 [thread overview]
Message-ID: <20040114080635.E7496C10AF@atlas.denx.de> (raw)
In-Reply-To: Your message of "Tue, 13 Jan 2004 13:58:55 MST." <C7FFFEA58B43D311920D0004ACE5333F10E4F500@amer25.avnet.com>
Dear John,
in message <C7FFFEA58B43D311920D0004ACE5333F10E4F500@amer25.avnet.com> you wrote:
>
> understanding of U-boot: In our firmware, Ethernet is enabled
> at start-up, and we always answer pings. (And you do not need
> interrupts to do that -- our firmware runs polled and handles
> pings just fine.) I am in the habit of thinking that if a node
Thaty means you have to implement some kind of multitasking. or how
do you poll the network interface while another command is running?
> doesn't answer a ping, it is inoperable. Also, we run a TFTP
That is not true.
> server on the board, with a client on the PC. This way, the PC
That is pretty non-standard. The typical way to bootstrap systems
from a boot server is that the boting system will use TFTP / BOOTP /
DHCP as a _client_.
> * Pings are not answered.
Because U-Boot is single-tasking.
> * Ethernet is brought up only when one runs tftpboot
> et al.
Because there is no use in wasting time to bring up interfaces which
are not used. U-Boot is intended to allow for fast booting.
> * There appears to be no way to use TFTP to copy data
> from the board to the PC.
Please feel free to add a TFTP upload command.
> These are U-boot design decisions; my error was in expecting
> something else.
Indeed.
Best regards,
Wolfgang Denk
--
See us @ Embedded World, Nuremberg, Feb 17 - 19, Hall 12.0 Booth 440
Phone: (+49)-8142-4596-87 Fax: (+49)-8142-4596-88 Email: wd at denx.de
Of all the things I've lost, I miss my mind the most.
next prev parent reply other threads:[~2004-01-14 8:06 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-01-13 20:58 [U-Boot-Users] Statically assigned IP addresses Kerl, John
2004-01-14 8:06 ` Wolfgang Denk [this message]
-- strict thread matches above, loose matches on Subject: below --
2004-01-14 16:35 Kerl, John
2004-01-13 19:06 Demke, Torsten
2004-01-13 18:50 Richard Klingler
2004-01-13 20:05 ` Wolfgang Denk
2004-01-13 18:27 Kerl, John
2004-01-13 20:02 ` Wolfgang Denk
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