From: Gary Thomas <gary@mlbassoc.com>
To: dorin@gr-303.com
Cc: eCos Discussion <ecos-discuss@ecos.sourceware.org>
Subject: Re: [ECOS] ECOS/Redboot -- Several Questions
Date: Thu, 28 Apr 2005 23:09:00 -0000 [thread overview]
Message-ID: <1114715449.20757.301.camel@hermes> (raw)
In-Reply-To: <20050428190641.40773.qmail@web42006.mail.yahoo.com>
On Thu, 2005-04-28 at 12:06 -0700, Michael Dorin wrote:
> Hello,
>
> I have an 860T based board and am trying to convert
> the MBX templete. However a couple differences:
>
> * My board has CS0 tied to address 0. I believe the
> wants to boot from 0xfe000000. I don't have ram
> at 0. I have changed the ram.ldi and rom.ldi files
> in the pkgconf directory. I have changed the
> lib/target.ld files.
>
> I can't seem to get a good link though.
>
> Where might I be missing something?
>
> Second question...
> Is it bad that 0 is my flash address?
Yup - poor choice. You have total control over this during the
machine initialization, so it's much better to map the FLASH (CS0)
up high, e.g. 0xFE000000, and put the RAM (typically CS1) at 0x0.
Also, use the viper as a better template for 860T starting point.
--
------------------------------------------------------------
Gary Thomas | Consulting for the
MLB Associates | Embedded world
------------------------------------------------------------
--
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next prev parent reply other threads:[~2005-04-28 19:11 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-04-28 19:11 Michael Dorin
2005-04-28 23:09 ` Gary Thomas [this message]
2005-04-30 3:33 ` Frank Robbins
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