[ECOS] Compile Redboot for Coyote board (GRG board) failed

[ECOS] Compile Redboot for Coyote board (GRG board) failed

[Aric Wang]

Hello,

I have a Coyote (1.05) board. I downloaded redboot binary image from Intel
website. It runs ok.

I'm going to compile my own redboot from source code. I installed eCos 2.0
under cygwin. There's no support of either GRG or IXDP425 board. So I
downloaded the latest eCos version via CVS. 

I use "configtool" to configure and build eCos.  I selected "Generic
Resident Gateway" template and chose "redboot" package, then build libary.
Error occured. It seems that the gcc libs came with eCos 2.0 is
little-endian, but the configtool compiles in big-endian by default. Where
can I get gnu tools for big-endian?

I changed the compile flags to compile little-endian image. It succeeded.
But when I load the image to RAM, it died.

Can anyone give some clue?

Thanks in advance.

-Aric


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Re: [ECOS] Compile Redboot for Coyote board (GRG board) failed

[Nick Garnett]

"Aric Wang" <Aric_Wang@Jabil.com> writes:

> Hello,
> 
> I have a Coyote (1.05) board. I downloaded redboot binary image from Intel
> website. It runs ok.
> 
> I'm going to compile my own redboot from source code. I installed eCos 2.0
> under cygwin. There's no support of either GRG or IXDP425 board. So I
> downloaded the latest eCos version via CVS. 
> 
> I use "configtool" to configure and build eCos.  I selected "Generic
> Resident Gateway" template and chose "redboot" package, then build libary.
> Error occured. It seems that the gcc libs came with eCos 2.0 is
> little-endian, but the configtool compiles in big-endian by default. Where
> can I get gnu tools for big-endian?

The distributed tools are little-endian only by default. If you need
big-endian tools than you will have to build them yourself. There are
instructions for doing that here:

http://ecos.sourceware.org/build-toolchain.html

> 
> I changed the compile flags to compile little-endian image. It succeeded.
> But when I load the image to RAM, it died.

You may need to change some switches or jumpers to make the system run
little-endian. Alternatively, it may be fixed in big-endian mode
permanently.

-- 
Nick Garnett                    eCos Kernel Architect
http://www.ecoscentric.com/     The eCos and RedBoot experts


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