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Re: [lpc2000] Re: Disabling/enabling interrupt causing a data abort

2004-04-20 by microbit

Thanks,
just got on line, and in interim I had a post in Out box with a copy of
Bill's advice
and referred to the original thread I started, which correlates with your
advice.
That's certainly how I ended up leaving my RS232 low level abstraction.
I haven't seen any issues anymore (I think).
This is on my LPC2000 Basic interpeter.

-- Kris


----- Original Message -----
From: "embeddedjanitor" <manningc2@...>
To: <lpc2000@yahoogroups.com>
Sent: Tuesday, April 20, 2004 5:35 PM
Subject: [lpc2000] Re: Disabling/enabling interrupt causing a data abort


> In general, I'd say it is better to use global interrupt
> enable/disable than doing this in the VIC.
>
> See http://www.arm.com/support/faqip/3677.html
>
> IMHO, getting defualt IRQs is a way to clean up/detect spiruous
> activity rather than the normal way of doiing things.
>
>
> --- In lpc2000@yahoogroups.com, "Curt Powell" <curt.powell@s...>
> wrote:
> > Kris,
> >
> > I added an assembler harness to accept the default irq, loaded up
> > VICDefVectAddr with its address, and let it fly.  The default
> handler is
> > being called periodically (it just prints a diagnostic and returns)
> so
> > it appears to be working- I can't give a definitive answer until it
> runs
> > for a couple of hours, but so far so good.  Thanks so much for your
> > insight.
> >
> > Curt

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