See my previous answer.

Gerald


On Fri, Sep 18, 2015 at 7:27 AM, Marcos Díaz <
[email protected]> wrote:

> Hi, we were developing a port for the BeagleBoneBlack in RTEMS, and we
> wanted to use the ethernet driver with LWIP stack.
>
> After some work, we could make it work. I use U-boot to boot rtems, using
> an sd card.
>
> The problem was that, if we use the ethernet driver with the cache
> enabled, after a little while the program freezes. We didn't have a
> debugger, so we used as a workaround disabling the cache.
>
> After some time, i could get some rev C boards, and to my surprise, the
> program worked perfectly OK with cache and ethernet.
>
> Currently I have only two types of boards:
> a Rev C that works fine.
> a Rev A5C that doesn't work.
>
> I checked the revisions reading the EEPROM, and the processor registers.
> I asked another RTEMS user to test this, and he told me that he has a Rev
> C.
> But if he prints the EEPROM it says rev A5, but the processor is the same
> as in the revision C (AM3358B).
>
> So, after all I have two questions:
> - What differences there are between the two revisions that make one
> version work OK and the other not?. I use the exact same binary in both
> boards, and one  works and the other doesn't.
>
> -Is there a revision A5 with an AM3358B processor?
>
> Thanks.
> --
>
> ______________________________
>
> <http://www.tallertechnologies.com>
>
>
> Marcos Díaz
>
> Software Engineer
>
>
> San Lorenzo 47, 3rd Floor, Office 5
>
> Córdoba, Argentina
>
>
> Phone: +54 351 4217888 / +54 351 4218211/ +54 351 7617452
>
> Skype: markdiaz22
>
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-- 
Gerald

[email protected]
http://beagleboard.org/

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