From mboxrd@z Thu Jan 1 00:00:00 1970 Received: with ECARTIS (v1.0.0; list linux-mips); Thu, 13 Feb 2003 13:19:25 +0000 (GMT) Received: from mail.stellartec.com ([IPv6:::ffff:65.107.16.99]:9738 "EHLO nt_server.stellartec.com") by linux-mips.org with ESMTP id ; Thu, 13 Feb 2003 13:19:24 +0000 Received: from wssseeger ([192.168.1.53]) by nt_server.stellartec.com (Post.Office MTA v3.1.2 release (PO205-101c) ID# 568-43562U100L2S100) with SMTP id AAA493; Thu, 13 Feb 2003 05:19:18 -0800 Reply-To: From: sseeger@stellartec.com (Steven Seeger) To: "'Jun Sun'" Cc: Subject: RE: NEC VR4181A Date: Thu, 13 Feb 2003 05:22:36 -0800 Message-ID: <02c101c2d362$f9e2eed0$3501a8c0@wssseeger> MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit X-Priority: 3 (Normal) X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook CWS, Build 9.0.2416 (9.0.2911.0) In-Reply-To: <20030212224837.D16015@mvista.com> X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2600.0000 Importance: Normal Return-Path: X-Envelope-To: <"|/home/ecartis/ecartis -s linux-mips"> (uid 0) X-Orcpt: rfc822;linux-mips@linux-mips.org Original-Recipient: rfc822;linux-mips@linux-mips.org X-archive-position: 1405 X-ecartis-version: Ecartis v1.0.0 Sender: linux-mips-bounce@linux-mips.org Errors-to: linux-mips-bounce@linux-mips.org X-original-sender: sseeger@stellartec.com Precedence: bulk X-list: linux-mips >Osprey uses Vr4181, which is a different chip from vr4181a. Yeah I didn't notice the A on there. We are looking into the possibility of using the A in our board. Part of the problem is that the A only comes in BGA and we don't like dealing with that. >Interesting. I was trying to get RT-Linux working at one time >but aborted that effort in the middle. Getting RTAI working wasn't easy. Took over a week and it was supposedly already "ported." One of these days I really must find the time to check in my changes to that project. It works very well and is quite stable. I think 46 us worst-case interrupt response off one of the VR4181's interrupts from an external source is very good. Steve From mboxrd@z Thu Jan 1 00:00:00 1970 Reply-To: From: sseeger@stellartec.com (Steven Seeger) Subject: RE: NEC VR4181A Date: Thu, 13 Feb 2003 05:22:36 -0800 Message-ID: <02c101c2d362$f9e2eed0$3501a8c0@wssseeger> MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit In-Reply-To: <20030212224837.D16015@mvista.com> Return-Path: Sender: linux-mips-bounce@linux-mips.org Errors-to: linux-mips-bounce@linux-mips.org To: 'Jun Sun' Cc: linux-mips@linux-mips.org Message-ID: <20030213132236.522Oy0-8oUdvHMwkTbCk7QB6tPE7vIC5zD7qb_RbCdc@z> >Osprey uses Vr4181, which is a different chip from vr4181a. Yeah I didn't notice the A on there. We are looking into the possibility of using the A in our board. Part of the problem is that the A only comes in BGA and we don't like dealing with that. >Interesting. I was trying to get RT-Linux working at one time >but aborted that effort in the middle. Getting RTAI working wasn't easy. Took over a week and it was supposedly already "ported." One of these days I really must find the time to check in my changes to that project. It works very well and is quite stable. I think 46 us worst-case interrupt response off one of the VR4181's interrupts from an external source is very good. Steve