RE: [ECOS] Simple Redboot Q's

[Gary Thomas <gary at mlbassoc dot com>]

On Tue, 2005-07-26 at 15:52 +0100, Matt Sartori wrote:
> Ok, that was also the command I initially thought I'd need. 
> However, using an elf (or even a binary) of code which I can flash
> directly to the board (using jtag and an ide) and run won't work if I
> load it into Redboot over the serial link and use go on it's initial
> location. I presume this may have something to do with the expected vs.
> actual location of the software? 

Unless your code is position independent (or very smart), this is
most certainly your problem.

> I'm not very experienced with this sort of thing (as you can probably
> tell) which is why I'd hoped that there were some (hello world type)
> examples that didn't involve linking against the ecos libs or loading up
> a linux image.

What's wrong with using eCos to help you build your program?

n.b. this is an eCos list, so we're oriented that way :-)

> 
> m@
> 
> -----Original Message-----
> From: Andrew Lunn [mailto:andrew@lunn.ch] 
> Sent: 26 July 2005 14:29
> To: Matt Sartori
> Cc: ecos-discuss@ecos.sourceware.org
> Subject: Re: [ECOS] Simple Redboot Q's
> 
> 
> On Tue, Jul 26, 2005 at 02:19:38PM +0100, Matt Sartori wrote:
> > Exec seems quite closely tied to linux (eg. When I enable the 
> > CYGBLD_BUILD_REDBOOT_WITH_EXEC it actually fails with some error in 
> > redboot_linux_exec.c). Can I run anything with Redboot using exec or 
> > is it looking for some kind of linux kernel image etc. ?
> 
> Exec is Linux specific
> 
> Use the go command for a more generic way of starting an arbitatry bit
> of code.
> 
> http://ecos.sourceware.org/docs-latest/redboot/executing-programs.html
> 
>         Andrew
> 
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-- 
------------------------------------------------------------
Gary Thomas                 |  Consulting for the
MLB Associates              |    Embedded world
------------------------------------------------------------


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