From mboxrd@z Thu Jan  1 00:00:00 1970
From: Gary Thomas <gthomas@cambridge.redhat.com>
To: Christoph Csebits <Christoph.Csebits@frequentis.com>
Cc: ecos-discuss@sources.redhat.com, Linus Nielsen Feltzing <linus@haxx.se>
Subject: Re: [ECOS] Enabling Interrupts
Date: Wed, 02 May 2001 08:28:00 -0000
Message-id: <XFMail.20010502092843.gthomas@cambridge.redhat.com>
References: <20010502163844.A25901@frequentis.com>
X-SW-Source: 2001-05/msg00024.html

On 02-May-2001 Christoph Csebits wrote:
> On Thu, Apr 26, 2001 at 12:26:34PM +0200, Linus Nielsen Feltzing wrote:
>> It looks like a problem with your interrupts.
>> How are your vectors set up? Where are they located (interrupt prefix)?
> 
> Due to using not the ecos gdb stub to upload my applications the
> exception vector table is not initialized/set up.
> 
> How can i configure eCos to set up the vector tables, and how
> can i verify that they are put into the right memory location?
> 

Set  CYGSEM_HAL_POWERPC_COPY_VECTORS

> And is there anything to manage after the vector table is set up?
> (registering some isr routines, or is it done automatically)
> 
>> It is probably the Decrementer interrupt that has triggered.
> you are right, it was the Decrementer interrupt.
> 
> prehistory:
>> > Hi,
>> > 
>> > i am working on an eCos port for a PowerPC MPC860T
>> > based board. On the board is a simple "load and go"
>> > bootstrapper doing simple board initialization.
>> > 
>> > Serial ports under eCos are not yet working, but
>> > i have blinking leds (based on simple hello.c).
>> > 
>> > Then i started to try this with two threads.
>> > My problem is, that enabling the interrupts
>> > (in Cyg_Interrupt::enable_interrupts(); -> MSR[EE]=1)
>> > never returns. 
>> > 
>> > Any idea, where to start?
>> > 
>> > best regards
>> > Christoph
>> > 
> best regards, Christoph