Re: [Gumstix-users] I2C fast interrupts; real-time?

[Peter V. <pet...@gm...>]

Thanks Dave, Actually I am kind of new to this and have never heard of
FIQ... I'll look into it more.
Thanks

On Mon, May 19, 2008 at 1:58 AM, Dave Hylands <dhy...@gm...> wrote:

> Hi Peter,
>
> > I need to design a system connecting a gumstix and a microcontroller
> board
> > for my senior project. I want to know if the fast interrupt  latency is
> > deterministic and could be considered real-time for i2c transactions. Are
> > there typically many devices registered on that IRQ?
>
> Are you referring to FIQ versus IRQ? If so, there is very limited
> support for FIQ in the linux kernel. It requires the use of some very
> special code and you are very restricted as to what you can call
> during FIQ processing.
>
> There are some threads in the archives which deal with FIQs:
> <
> http://thread.gmane.org/gmane.linux.distributions.gumstix.general/6752/focus=6818
> >
>
> Search in gmane using the search term FIQ to find other threads.
>
> --
> Dave Hylands
> Vancouver, BC, Canada
> http://www.DaveHylands.com/
>
> -------------------------------------------------------------------------
> This SF.net email is sponsored by: Microsoft
> Defy all challenges. Microsoft(R) Visual Studio 2008.
> http://clk.atdmt.com/MRT/go/vse0120000070mrt/direct/01/
> _______________________________________________
> gumstix-users mailing list
> gum...@li...
> https://lists.sourceforge.net/lists/listinfo/gumstix-users
>