From: Wolfgang Denk <wd@denx.de>
To: u-boot@lists.denx.de
Subject: [U-Boot-Users] question about interrupt
Date: Tue, 20 May 2008 14:31:24 +0200 [thread overview]
Message-ID: <20080520123124.62C4124312@gemini.denx.de> (raw)
In-Reply-To: Your message of "Tue, 20 May 2008 15:10:13 +0530." <7f245da80805200240o7dde7b3bl83875b910d69ad08@mail.gmail.com>
In message <7f245da80805200240o7dde7b3bl83875b910d69ad08@mail.gmail.com> you wrote:
>
> So if someone enable a interrupt and handled it properly then at the
> time of interrupt handler will be called, but how then control reaches
> back to u-boot original task that was running prior to interrupt
That's just a normal return from interrupt, like you return from a
normal function call.
> delivery? I mean who is taking care of context switch at the time of
> interrupts?
There is no such thing as a context switch.
Best regards,
Wolfgang Denk
--
DENX Software Engineering GmbH, MD: Wolfgang Denk & Detlev Zundel
HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany
Phone: (+49)-8142-66989-10 Fax: (+49)-8142-66989-80 Email: wd at denx.de
"Anyone attempting to generate random numbers by deterministic means
is, of course, living in a state of sin." - John Von Neumann
next prev parent reply other threads:[~2008-05-20 12:31 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-05-20 2:11 [U-Boot-Users] question about interrupt loody
2008-05-20 5:18 ` Chetan Nanda
2008-05-20 5:53 ` loody
2008-05-20 8:36 ` Chetan Nanda
2008-05-20 9:23 ` Wolfgang Denk
2008-05-20 9:40 ` Chetan Nanda
2008-05-20 12:31 ` Wolfgang Denk [this message]
2008-05-20 8:36 ` Andreas Schweigstill
2008-05-20 9:25 ` Wolfgang Denk
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