Problems running example isr

Adam Lackorzynski adam at os.inf.tu-dresden.de
Mon Mar 21 00:09:25 CET 2016


Hi,

On Sat Mar 12, 2016 at 14:09:20 +0100, Nourhan Mohamed wrote:
> Thank you for your reply! I have already changed the IRQ no inside the code
> to 44. But could you give me more insight on what needs to be modified to
> capture the interrupt on an ARM device?

You need to have/write the driver for that. Likely the pl050 is not
initialized, thus does not trigger any interrupts. It's a driver...


Adam

> On Thu, Mar 10, 2016 at 12:22 AM, Adam Lackorzynski <
> adam at os.inf.tu-dresden.de> wrote:
> 
> >
> > On Wed Mar 02, 2016 at 16:47:03 +0100, Nourhan Mohamed wrote:
> > > Dear L4Hackers,
> > >
> > > I have a problem running the example "isr" in the pkg/examples/sys/isr
> > > folder in l4 source. It prints "isr     | Press keys now, Shift-Q to
> > exit"
> > > then It fails to detect any interrupts and just keeps waiting. My
> > > configuration is as follows, emulated using Qemu on vexpress-a15 machine:
> >
> > This example is somewhat special because it goes for IRQ 1 which is the
> > PS/2 keyboard interrupt on x86.
> > The pl050 is basically the same so you could just change the
> > number in the example to 44. But I guess there's some more work required
> > to init the controller as there's no magic x86 BIOS that already did
> > it.
> >
> >
> >
> > Adam
> > --
> > Adam                 adam at os.inf.tu-dresden.de
> >   Lackorzynski         http://os.inf.tu-dresden.de/~adam/
> >
> > _______________________________________________
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> >

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Adam
-- 
Adam                 adam at os.inf.tu-dresden.de
  Lackorzynski         http://os.inf.tu-dresden.de/~adam/



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