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Re: Load arbitrary code on iPaq using RedBoot?


On Wed, 2002-10-23 at 07:04, Jon Read wrote:
> Gary,
> 
> Thanks for the prompt reply.
> 
> > We do this all the time :-)
> 
> That sounds encouraging. :-)
> 
> > First of all, use "go", not "exec" since the "exec" command is
> > highly tailored to running Linux and does some "special" stuff.
> 
> 
> Ok, I'll try that - although I would prefer to have the MMU disabled etc.
> 
> > Secondly, if you don't use eCos as your base, you'll have to do
> > _everything_ [in general], which includes writing all of your
> > own device drivers, interrupt/exception handlers, etc.
> 
> Yep, that's fine.
> 
> > Why don't you want to use eCos to help out?
> 
> To cut a long story short, I'm developing an embedded application that 
> will take control of a machine during the boot process, before the OS 
> (nucleus, uITRON, eCos, whatever) has had a look in.  It will a) display 
> a progress indicator on screen, and b) write to flash.
> 

This sounds like just what RedBoot was written to address :-)

> As the iPaq isn't the intended final target, obviously the drivers will 
> have to be re-written at a later date.
> 
> We don't have the development boards yet, so I'd like to make a start 
> using what we do have, which, apart from a few assabet/lubbock type 
> boards that are already being used, is basically an iPaq. :-)
> 
> Cheers,
> Jon
> 
> 
> -- 
> Before posting, please read the FAQ: http://sources.redhat.com/fom/ecos
> and search the list archive: http://sources.redhat.com/ml/ecos-discuss
-- 
------------------------------------------------------------
Gary Thomas                  |
eCosCentric, Ltd.            |  
+1 (970) 229-1963            |  eCos & RedBoot experts
gthomas@ecoscentric.com      |
http://www.ecoscentric.com/  |
------------------------------------------------------------


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