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Re: Download a RedBoot on AT91
Hi the eb40 and eb55 don't use the same SRAM area. The first uses 0x02000000
and the second board uses 0x02020000 for the angel debug monitor. And
0x02020000 is the download address for eb40 boards. At eb55 this will
override the angel code. Therefor the transfer stops.
Roman
Am Freitag, 11. Oktober 2002 21:01 schrieb GREGHOL@sbcglobal.net:
> I have a relatively current CVS tree for building eCos
> code now for the EB40 target. I'm also in the same
> boat as far as the EB55. Just received mine yesterday
> in the mail and want to get redboot/tests going on it.
>
> Can I expect the patches to work with the current CVS
> or do I need a certain CVS date to apply the patches
> to first?
>
> If I understand correctly:
>
> 1) Apply AT49xxxx flash patch
> 2) Apply EB40A target patch
> This splits apart the EB40, EB40A and AT91 code ???
> 3) Make a EB55 target simular to EB40 and EB40A
> targets by modifying the appropriate directories and
> files for the EB55, ie ecos.db the *mlt *ldi files etc.
>
> Is this the gist of it?
>
> I guess the next thing to do is read the porting guide
> and just dive into it.
>
> Greg
>
> >Christophe Part wrote:
> >> Hi All,
> >>
> >> I am new on redboot and ecos.
> >> I have an AT91EB55 board.
> >> I try to download the redboot ram elf file on my
>
> board but it always stop.
>
> >Are you certain the RAM is located in the same
>
> place? What about
>
> >the clock speed param? Reset vector? Look at the
>
> hal_platform_setup.h
>
> >file and you'll probably find a few params that need
>
> to be changed.
>
> >Someone else on the list has recently asked about the
>
> eb55. Your best
>
> >bet is to download Thomas's patches that convert the
>
> hal/arm/at91
>
> >tree into a more sane structure, then my patch for
>
> the eb40a. Then
>
> >simply looking at what files reside in the specific
>
> eb40 and eb40a
>
> >subdirectories, you'll figure out which files the
>
> eb55 will probably
>
> >need to edited. Then look at the ecos.db file
>
> itself - there will
>
> >be a few entries in there for the eb40 and eb40a.
>
> Just copy those,
>
> >rename them to eb55, and edit to match the eb55 setup.
> >
> >-tim
>
> Greg
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