[U-Boot-Users] Watchdog timer reset

Wolfgang Denk
2005-05-11T22:23:43Z

In message <9b7ca657050509040572e02726@mail.gmail.com> you wrote:
>
> Just wondering, does u-boot support periodical reset of watchdog timer

Yes, of course it does.

> ? If not, I suppose I have to disable the watchdog when I enter uboot
> in interactive mode, and probably enable it when I exit u-boot.

If your watchdog i worth it's money it comes up enabled after reset,
and you can just disable it once and forever. A watchdog that can be
switched of is not worth to be called by that name.

> How does people normally do this ?

Have a look at the code.

> Just out of curiosity, (assuming u-boot does not do something like
> above), can we do something similar to below code?
>
> -=-=-=-=-=-=-=-=-=-=-=-=-=-=
> signal(SIGALRM, runme);

No, we cannot. U-boot is strictly single-tasking and has no notion of
signals and the like. Also, your code makes no sense to me.

Best regards,

Wolfgang Denk

--
Software Engineering: Embedded and Realtime Systems, Embedded Linux
Phone: (+49)-8142-66989-10 Fax: (+49)-8142-66989-80 Email: wd at denx.de
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