From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 4498 invoked by alias); 7 Oct 2003 04:33:23 -0000 Mailing-List: contact ecos-discuss-help@sources.redhat.com; run by ezmlm Precedence: bulk List-Subscribe: List-Archive: List-Post: List-Help: , Sender: ecos-discuss-owner@sources.redhat.com Received: (qmail 4491 invoked from network); 7 Oct 2003 04:33:23 -0000 Received: from unknown (HELO hotmail.com) (64.4.23.45) by sources.redhat.com with SMTP; 7 Oct 2003 04:33:23 -0000 Received: from mail pickup service by hotmail.com with Microsoft SMTPSVC; Mon, 6 Oct 2003 21:33:22 -0700 Received: from 172.193.25.196 by lw15fd.law15.hotmail.msn.com with HTTP; Tue, 07 Oct 2003 04:33:22 GMT X-Originating-IP: [172.193.25.196] X-Originating-Email: [embeddedeng@hotmail.com] From: "Michael Anburaj" To: RandyLin@mxic.com.tw, ecos-discuss@sources.redhat.com Bcc: Date: Tue, 07 Oct 2003 04:33:00 -0000 Mime-Version: 1.0 Content-Type: text/plain; format=flowed Message-ID: X-OriginalArrivalTime: 07 Oct 2003 04:33:22.0554 (UTC) FILETIME=[241A9DA0:01C38C8C] Subject: Re: [ECOS] CS8900a interrupt problem on EB40 X-SW-Source: 2003-10/txt/msg00082.txt.bz2 Normal, You need to Acknowledge first the interrupt & then unmask it. Before unmasking if there were pending interrupts, then even after unmasking -- the pending interrupt would interrupt (IRQ) until it’s cleared. I am not familiar with the Atmel’s Interrupt controller. So, I may be right or wrong. Cheers, -Mike. >From: RandyLin@mxic.com.tw >To: ecos-discuss@sources.redhat.com >Subject: [ECOS] CS8900a interrupt problem on EB40 >Date: Mon, 6 Oct 2003 17:50:08 +0800 > >CS8900a is connected with IRQ1,ethernet cable is not connected. >after cyg_drv_interrupt_unmask(), >EB40 generate interrupt all the time, the AIC_IPR is 0x00070005(IRQ1 is >pending) >the IRQ bit is set, is it mean interrupt? >but read cs8900a register CS8900A_ISQ, always 0, that should be no >interrupt. >I don't know why there is always interrupt? >thanks for any help! > > > >-- >Before posting, please read the FAQ: http://sources.redhat.com/fom/ecos >and search the list archive: http://sources.redhat.com/ml/ecos-discuss > _________________________________________________________________ Add MSN 8 Internet Software to your existing Internet access and enjoy patented spam protection and more. Sign up now! http://join.msn.com/?page=dept/byoa -- Before posting, please read the FAQ: http://sources.redhat.com/fom/ecos and search the list archive: http://sources.redhat.com/ml/ecos-discuss