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Re: Re: DSR question
- From: Iztok Zupet <iztok dot zupet at vsr dot si>
- To: t dot michals at attbi dot com
- Cc: eCos-discuss <ecos-discuss at sources dot redhat dot com>
- Date: 30 Sep 2002 21:36:58 +0200
- Subject: Re: [ECOS] Re: DSR question
- References: <20020930193532.LEJ7275.rwcrmhc53.attbi.com@rwcrwbc55>
On Mon, 2002-09-30 at 21:27, t.michals@attbi.com wrote:
> yes this is what is happening, the DSR unmasks the
> interrupt causing the the ISR to retrigger before the
> DSR is completed. So this can cause a deadlock issue?
I guess the DSR's can get stacked up (don't know exactly how). But
anyhow I suggest You modify Your HW, so that the interrupt level can be
cleared in SW before unmasking the interrupt itself.
iz
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