This is the mail archive of the
ecos-discuss@sources.redhat.com
mailing list for the eCos project.
which priority will suit rtc clock?
- From: "Qiang Huang" <jameshq at liverpool dot ac dot uk>
- To: "Gary Thomas" <gthomas at ecoscentric dot com>
- Cc: "Ecos-Discuss" <ecos-discuss at sources dot redhat dot com>
- Date: Wed, 16 Oct 2002 15:39:45 +0100
- Subject: [ECOS] which priority will suit rtc clock?
Thank you.
If irq is being processed, should the rtc interrupt still work? If so does
that mean the rtc interrupt priority should be the lowest compare to other
irq.
Thanks a lot.
-----Original Message-----
From: Gary Thomas [mailto:gthomas@ecoscentric.com]
Sent: 15 October 2002 14:09
To: Qiang Huang
Cc: eCos Discussion
Subject: Re: [ECOS] If delay() function is called in an isr() with
interruptdisabled...
On Tue, 2002-10-15 at 05:25, Qiang Huang wrote:
> Hi all:
> I wonder which priority should the RTC be? If the delay() function
> depends on the system RTC so if it is called in an isr() (which with
> interrupt disabled) anything wrong?
You can't call any function which depends on interrupts (or even higher
level scheduling) from an ISR.
> Thanks a lot
> qiang
>
>
>
> --
> Before posting, please read the FAQ: http://sources.redhat.com/fom/ecos
> and search the list archive: http://sources.redhat.com/ml/ecos-discuss
--
------------------------------------------------------------
Gary Thomas |
eCosCentric, Ltd. |
+1 (970) 229-1963 | eCos & RedBoot experts
gthomas@ecoscentric.com |
http://www.ecoscentric.com/ |
------------------------------------------------------------
--
Before posting, please read the FAQ: http://sources.redhat.com/fom/ecos
and search the list archive: http://sources.redhat.com/ml/ecos-discuss