[ECOS] Installing Redboot/eCos on the Atmel EB40(A)

[Ricardo Andrino]

Hello,
that is correct, you should download the last snapshot for the EB40A. I had the same problem. Once you have this in your computer you must change the ecos Repository( Build-Repository) and chosse the EB40A template.

If you need more help simply send me an mail.


"Ian McKee" <mrianmckee@hotmail.com> schrieb am 10.12.03 06:26:13:
> 
> Hi All,
> 
> I'm new to both the eCos/Redboot community and the Arm community, so please 
> bear with me and my noob questions.  :)
> 
> I am trying to learn how to use the GNU toolchain to develop embedded 
> software for the ARM target, because 1) I prefer open-source tools and 2) 
> although buying an IDE (GNU or non-GNU) would be easier, it sure would be 
> expensive!  I have GNU tools experience with non-embedded *nix software and 
> with the embedded Atmel AVR target.
> 
> Towards this end I am trying to install Redboot/Ecos on my Atmel EB40A 
> board, and as I understand it the first thing I need to do is get Redboot 
> into Flash according to these instructions:
> 
> http://ecos.sourceware.org/ecos/docs-latest/ref/at91.html
> 
> I can successfully build the Redboot RAM, ROM, and RAMROM images using the 
> eCos graphical configtool, but when I follow the instructions at the above 
> URL, this is what my session looks like:
> 
> [oberheim@localhost bin]$ pwd
> /home/oberheim/ecos/ecos-work/redboot_RAM/redboot_RAM_install/bin
> [oberheim@localhost bin]$ ls
> redboot.bin  redboot.elf  redboot.img  redboot.srec
> [oberheim@localhost bin]$ arm-elf-gdb redboot.elf
> GNU gdb 5.3 (eCosCentric)
> Copyright 2002 Free Software Foundation, Inc.
> GDB is free software, covered by the GNU General Public License, and you are
> welcome to change it and/or distribute copies of it under certain 
> conditions.
> Type "show copying" to see the conditions.
> There is absolutely no warranty for GDB.  Type "show warranty" for details.
> This GDB was configured as "--host=i686-pc-linux-gnu --target=arm-elf"...
> (gdb) tar rdi s=/dev/ttyS0
> Angel Debug Monitor (serial) 1.04 (Advanced RISC Machines SDT 2.5) for 
> AT91EB40A (1.00)
> Angel Debug Monitor rebuilt on Feb 03 2002 at 16:09:59
> Serial Rate:   9600
> Connected to ARM RDI target.
> (gdb) set $cpsr=0xd3
> (gdb) load
> Loading section .rom_vectors, size 0x40 lma 0x2020000
> RDI_write: data abort, no memory at specified address?
> RDI_write: data abort, no memory at specified address?
> Memory access error while loading section .rom_vectors.
> (gdb) doh
> Undefined command: "doh".  Try "help".
> (gdb)
> 
> After a bit of googling I suspect that these RDI_write errors occur because 
> the RAM image is being loaded into an address which does not physically 
> exist.  Is this correct?  What can I do to get past this error?
> 
> My development box is an up-to-date RedHat 8.0 box, with the latest eCos 
> distribution.  Please let me know if any more information would be useful to 
> help resolve my problem.   Also let me know if this is the proper venue for 
> this question, or if I should post somewhere else.
> 
> I'd really like to get started developing on this ARM platform and I'll 
> appreciate any input you all can give me!
> 
> -Ian McKee
> 
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> 
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