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Re: which priority will suit rtc clock?
- From: Gary Thomas <gthomas at ecoscentric dot com>
- To: Qiang Huang <jameshq at liverpool dot ac dot uk>
- Cc: eCos Discussion <ecos-discuss at sources dot redhat dot com>
- Date: 16 Oct 2002 08:42:44 -0600
- Subject: Re: [ECOS] which priority will suit rtc clock?
- References: <BDEPKKELILOKGOAOMONOOEFGCAAA.jameshq@liv.ac.uk>
On Wed, 2002-10-16 at 08:39, Qiang Huang wrote:
> 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.
I have no idea what you are trying to ask here.
> 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
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--
------------------------------------------------------------
Gary Thomas |
eCosCentric, Ltd. |
+1 (970) 229-1963 | eCos & RedBoot experts
gthomas@ecoscentric.com |
http://www.ecoscentric.com/ |
------------------------------------------------------------
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