Re: Nesting interrupts with ARM core

From: Jeo (jeo_at_ky___BIG-FISH-LITTLE-FISH___bert.com)
Date: 02/25/05 

Date: Fri, 25 Feb 2005 09:27:30 -0000

The code i posted receives the interrupt, but also receives interrupts from
the keyboard. I read the interrupt controoller to work out if it was suposed
to be an interrupt for my app, and call InterruptDone(SYSINT_CHAIN) if it
was not for my app.

But then i just receive the same interrupt again, it never gets serviced my
the keyboard any more.

Im really pulling my hair out over this... 4 weeks to write an interupt
driver is a bit much, and the boss is starting to ask questions !

Joe

"Steve Maillet (eMVP)" <nospam1@EntelechyConsulting.com> wrote in message
news:u3Ih3fqGFHA.1208@TK2MSFTNGP10.phx.gbl...
> The ARM core has only a single interrupt vector. However virtually ALL
> CPUs that have the ARM core have some sort of interrupt controller that
> you can quickly read to determine the first level interrupt sources. (You
> can call those IRQs) Normally the OEMInterruptHandler in the OAL will read
> the interrupt controller to determine the highest priority pending
> Interrupt request and return the SYSINTR_ ID for that device.
>
> --
> Steve Maillet
> EmbeddedFusion
> www.EmbeddedFusion.com
> smaillet at EmbeddedFusion dot com
>
>

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