From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 5285 invoked by alias); 2 Sep 2004 10:47:46 -0000 Mailing-List: contact ecos-discuss-help@ecos.sourceware.org; run by ezmlm Precedence: bulk List-Subscribe: List-Archive: List-Post: List-Help: , Sender: ecos-discuss-owner@ecos.sourceware.org Received: (qmail 5251 invoked from network); 2 Sep 2004 10:47:43 -0000 Received: from unknown (HELO anchor-post-34.mail.demon.net) (194.217.242.92) by sourceware.org with SMTP; 2 Sep 2004 10:47:43 -0000 Received: from calivar.demon.co.uk ([83.104.54.243] helo=xl5.calivar.com) by anchor-post-34.mail.demon.net with esmtp (Exim 3.35 #1) id 1C2p81-000MRp-0Y; Thu, 02 Sep 2004 10:47:41 +0000 Received: from xl5.calivar.com (localhost [127.0.0.1]) by xl5.calivar.com (Postfix) with ESMTP id B5A6DDDEB; Thu, 2 Sep 2004 11:47:40 +0100 (BST) To: "Prabhat Shrivastav" Cc: References: From: Nick Garnett Original-Sender: nickg@ecoscentric.com Date: Thu, 02 Sep 2004 10:47:00 -0000 In-Reply-To: Message-ID: User-Agent: Gnus/5.09 (Gnus v5.9.0) Emacs/21.3 MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Subject: Re: [ECOS] How to load redboot_ROM in to flash X-SW-Source: 2004-09/txt/msg00015.txt.bz2 "Prabhat Shrivastav" writes: > And my redboot_RAM is reside at 0x8c020000 SIZE : 0x20000 ,so I had selected the RAM > address 0x8c080000 for redboot_ROM.bin .But as you said ,I had tested with mfill command > at 0x8c080000, its failed. > It gives message : ** command abort - illegal memory access? > I am unable to get this why this memory has blocked . May this is blocked or reserved for > some other purpose. The message indicates that the CPU is getting a memory access exception. Is there really memory at this address? RedBoot's idea of the address range may be wrong. Is the memory controller set up properly? Is there a memory management unit that may be interfering? You will have to investigate the specific hardware and system setup to work out what is actually happening. I don't know enough about this platform or the SH3 to suggest anything else. > > One more thing: Even though if try to load the redoot_ROM.bin file to 0x8c047278 or > %[FREEMEMELO] with "load -r -b 0x8c047278 -m xmodem" command I an unable to load > into RAM .But if I use mfill at 0x8c047278 I able to fill the memory. You can use mfill to work out the address at which it starts to fail. This may give you a clue as to how much memory you actually have. -- Nick Garnett eCos Kernel Architect http://www.ecoscentric.com/ The eCos and RedBoot experts -- Before posting, please read the FAQ: http://ecos.sourceware.org/fom/ecos and search the list archive: http://ecos.sourceware.org/ml/ecos-discuss