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ecos-discuss@sources.redhat.com
mailing list for the eCos project.
RE: ethernet download
- To: "Trenton D. Adams" <tadams at theone dot dnsalias dot com>
- Subject: RE: [ECOS] ethernet download
- From: Gary Thomas <gthomas at redhat dot com>
- Date: Fri, 24 Aug 2001 09:14:11 -0600 (MDT)
- Cc: eCos Discussion <ecos-discuss at sourceware dot cygnus dot com>
- Organization: Red Hat, Inc.
On 24-Aug-2001 Trenton D. Adams wrote:
> That sounds cool. I never thought of that. I'll try it. How much RAM
> does Redboot take up? Can you have it take up a smaller amount of RAM
> after it's started the other system? We are only putting 1M RAM on our
> target board so I can't have it taking up much.
>
The normal case is for RedBoot to use 128K. However, if you're willing
to give up RedBoot's services (e.g. network console & debugging, etc)
after starting your code, that can be reduced to 0 (it's a non-factor
becaose your code will use everything available).
> -----Original Message-----
> From: gary@chez-thomas.org [mailto:gary@chez-thomas.org] On Behalf Of
> Gary Thomas
> Sent: Friday, August 24, 2001 8:59 AM
> To: Trenton D. Adams
> Cc: eCos Discussion; eCos Discussion; Trenton D. Adams
> Subject: RE: [ECOS] ethernet download
>
>
>
> On 24-Aug-2001 Trenton D. Adams wrote:
>> What about it? It only allows you to download a ROM image once, and
>> then it's wiped out of FLASH, no? If I have to download redboot every
>> time, it defeats the purpose a little bit because it might not save
> any
>> time.
>>
>
> That's true - for the primary ROM image. If you're looking for a faster
> way to load big ROM images, rather than keeping RedBoot in place, you're
> out of luck I'm sorry.
>
> What is it that you want to have in ROM? Will it fit alongside of
> RedBoot?
> If so, you can keep RedBoot in there to help you download and manipulate
> the FLASH (I hope it's FLASH!). You can still execute from FLASH if you
> wish, or use RedBoot commands to load & go from FLASH.
>
> We do this sort of thing all the time with embedded Linux systems.
> RedBoot
> is kept for the purpose of system startup, download and FLASH
> management.
> When the system starts, a RedBoot script is used to startup the Linux
> kernel, etc.
>
>> -----Original Message-----
>> From: ecos-discuss-owner@sources.redhat.com
>> [mailto:ecos-discuss-owner@sources.redhat.com] On Behalf Of Gary
> Thomas
>> Sent: Thursday, August 23, 2001 5:05 PM
>> To: Trenton D. Adams
>> Cc: eCos Discussion
>> Subject: RE: [ECOS] ethernet download
>>
>>
>>
>> On 23-Aug-2001 Trenton D. Adams wrote:
>>> Is there a utility for my edb7111-2 for downloading ROM eCos programs
>>> over ethernet?
>>>
>>> It would obviously have to start with serial in order to get the
>>> original ethernet driver over and then finish over ethernet.
>>>
>>
>> What about RedBoot? :-)