From: Andrew Lunn <andrew@lunn.ch>
To: Jacob Avraham <jacob@imaginecommunications.com>
Cc: "ecos-discuss@ecos.sourceware.org" <ecos-discuss@ecos.sourceware.org>
Subject: Re: [ECOS] timer alarm or any timer in Redboot
Date: Wed, 29 Aug 2007 12:53:00 -0000 [thread overview]
Message-ID: <20070829125314.GJ31057@lunn.ch> (raw)
In-Reply-To: <FF584854D6FFE547AB2F7515A798AC3A12070B51@venus.imagineil.tv>
> Does Redboot support an alarm timer, or any timer for that matter,
> that I can use to toggle a LED while Redboot is booting?
> I'm not asking about the delay timer, I need an asynchronous timer.
Interrupts are not running, you don't have a kernel. So no.
The nearest you have is that Redboot has a poll loop. When redboot has
nothing to do, it calls do_idle() which calls a list of idle
functions. You could hook this and blink your LED. But by the time
this is being called, booting is over. Redboot is running.
Andrew
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next prev parent reply other threads:[~2007-08-29 12:53 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-08-29 12:03 Jacob Avraham
2007-08-29 12:53 ` Andrew Lunn [this message]
2007-08-29 18:48 ` [ECOS] Notification of changes required for CPU support Scott Moore
2007-08-29 19:00 ` Gary Thomas
2007-08-29 19:08 ` Scott Moore
2007-08-29 19:29 ` Hans Rosenfeld
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