Re: Which functions can I call from an ISR(Interrupt Service Routi

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From: Håkan Andersson (HkanAndersson_at_discussions.microsoft.com)
Date: 01/27/05 

Date: Thu, 27 Jan 2005 07:07:03 -0800

OK.
But since we need very fast respons in our control-system(below 20 µs) we
are planning to have some control code in the ISR because having them in an
IST would be too slow.
I have just measured the ISR and IST latencys and for our purpose IST is too
slow.

Best regards
Håkan Andersson

"Dean Ramsier" wrote:

> Basically nothing can be called from an ISR. An ISR should do nothing but
> figure out what caused the interrupt, and return the appropriate SYSINTR to
> the operating system.
>
> --
> Dean Ramsier - eMVP
>
>
> "Håkan Andersson" <HkanAndersson@discussions.microsoft.com> wrote in message
> news:A55D263A-495A-4D8E-90DF-8042F0FFBBFB@microsoft.com...
> > Hello !
> >
> > Does anybody know if there are some special library with
> > functions that can be called from an interrupt service routine, ISR.
> > Standard functions like printf and so on cannot be used because blocking
> can
> > occur.
> >
> > I have heard that there should be functions with the prefix SC_.... for
> this
> > purpose, but I haven't found any information on this.
> >
> > Regards
> >
>
>
>

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