[ECOS] Problems with ISR/DSR stacks

[Øyvind Harboe]

On 06 Jun 2007 10:31:37 +0100, Nick Garnett <nickg@ecoscentric.com> wrote:
> "Øyvind Harboe" <oyvind.harboe@zylin.com> writes:
>
> > Enabling INFRA_DEBUG crashes my "rocket"...
> >
> > As far as I can tell the DSR runs run on the thread stack and not the
> > interrupt stack(from inside interrupt_end).
>
> No. DSRs run on the interrupt stack. This is what
> hal_interrupt_stack_call_pending_DSRs() does.

Ah. OK. I'll have to dig into that, but that does give interrupt
stacks a lot more oomph.

> If you disable the interrupt stack then you have to deal with the
> consequences. It is not recommended unless you know what you are
> doing.

I haven't added interrupt stacks to my HAL yet, but is sure is on my
list now(together with GDB support and a number of other things). :-)

Thanks for the clarification!

-- 
Øyvind Harboe
http://www.zylin.com - eCos ARM & FPGA  developer kit

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