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Re: which address of FLASH should at91sam7s redboot burn to ?
The prebuilt redboot startup is ROM, because the filename is
redboot_rom.bin. Thank you for getting me know my misunderstanding
about the elf file, I always think the all the file data will be burn
into flash until you tell me the truth. Maybe i should learn the
startup process of the ecos, then to find out why my redboot can
2009/6/19 Robert Brusa <firstname.lastname@example.org>:
> On Fri, 19 Jun 2009 10:34:16 +0200, ?wrote:
>> On Fri, 19 Jun 2009 07:49:46 +0200, jasonlee <email@example.com>
>>> Typically ROM startup is used for building RedBoot.
>>> make sure you startup is ROM.
>>> wb ning wrote:
>>>> hello, everyone, i downloaded the ?Prebuilt RedBoot binaries for Atmel
>>>> AT91SAM7S. But After i burn the redboot_rom.bin into at91sam7s256's
>>>> flash at address 0x100000, it can't startup when power on. The
>>>> datasheet said 0x100000 is the beginning address of Flash. So i burn
>>>> it there. I use the readelf command to find the redboot_rom.elf say
>>>> its entry point is 0x100040, But when i burn redboot_rom.bin there, it
>>>> can't startup either. ?Can you tell me where should i burn the
>>>> redboot_rom.bin, since the redboot_rom.elf is too large to burn.
>>>> Before posting, please read the FAQ: http://ecos.sourceware.org/fom/ecos
>>>> and search the list archive: http://ecos.sourceware.org/ml/ecos-discuss
> 0x100000 is ok and it should work. The fact that it does not hints at an
> other problem. Currently I see two possible areas of problems:
> a) You write "prebuilt redboot" - please check, as adviced by Jason that
> indeed your redboot was built for "startup ROM"
> b) Then you write "...burn the redboot_rom.bin ...elf is too large to burn"
> What do mean with this statement? The code in the elf-file is the same as in
> a bin-file - except that the elf-file contains a lot of other (debug)
> information. But that does not go into the target.
> Regards Robert
> Before posting, please read the FAQ: http://ecos.sourceware.org/fom/ecos
> and search the list archive: http://ecos.sourceware.org/ml/ecos-discuss
Before posting, please read the FAQ: http://ecos.sourceware.org/fom/ecos
and search the list archive: http://ecos.sourceware.org/ml/ecos-discuss