From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 18857 invoked by alias); 28 Oct 2005 07:44:40 -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 18845 invoked by uid 22791); 28 Oct 2005 07:44:38 -0000 Received: from londo.lunn.ch (HELO londo.lunn.ch) (80.238.139.98) by sourceware.org (qpsmtpd/0.30-dev) with ESMTP; Fri, 28 Oct 2005 07:44:38 +0000 Received: from lunn by londo.lunn.ch with local (Exim 3.36 #1 (Debian)) id 1EVOud-0003ZK-00; Fri, 28 Oct 2005 09:44:31 +0200 Date: Fri, 28 Oct 2005 07:44:00 -0000 To: Ashish Ranjan Cc: ecos-discuss@ecos.sourceware.org Message-ID: <20051028074431.GC8887@lunn.ch> Mail-Followup-To: Ashish Ranjan , ecos-discuss@ecos.sourceware.org References: <20051028072716.38116.qmail@web35012.mail.mud.yahoo.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20051028072716.38116.qmail@web35012.mail.mud.yahoo.com> User-Agent: Mutt/1.5.11 From: Andrew Lunn Subject: Re: [ECOS] Unable to Boot (RedBoot ) standalone X-SW-Source: 2005-10/txt/msg00253.txt.bz2 On Fri, Oct 28, 2005 at 12:27:16AM -0700, Ashish Ranjan wrote: > Hello All, > Please help me I have two problems rigth now and i am > new to ECOS. > > I am trying to port redboot on the Card having MPC860 > and startup type is ROM.The card has the SDRAM > (0x00000000 - 0x00FFFFFF) and ROM (0x30000000 - > 0x303FFFFF).When I program the flash and run the > RedBoot.elf through lauterbach(ICD), I get the RedBoot > prompt on Hyperterminal. But when I power-on the Card > without the Emulator, i am unable to get the RedBoot > prompt(nothing happens). > > There is one more problem,it happens sometimes.In this > case,I am unable to the RedBoot prompt. The > IP(Instruction Pointer) move to an address 0x8001002C > and get halted as I have seen with the help of > debugger. Problem is : When a address is pushed into > the stack and when it is poped up the value is not the > same.Why it happens?what would be the reason? This sort of thing generally indicates the SDRAM controller initialization is broken. It could be your debugger is initializing the SDRAM controller and getting it correct. But when eCos does the initialization, it gets is wrong. Andrew -- Before posting, please read the FAQ: http://ecos.sourceware.org/fom/ecos and search the list archive: http://ecos.sourceware.org/ml/ecos-discuss