[Macchiato] SD problems

[Ard Biesheuvel]

On 14 June 2017 at 20:09, Marcin Wojtas <mw at semihalf.com> wrote:
> Hi Steve,
>
> I tried two different SD cards, both worked, so maybe I was lucky. Anyway,
> are you sure, you have MBR partition table + the first (boot) partition
> starts at 4096?
>

I can confirm it is a board level issue: I had the pleasure of playing
with Steve's board as well as my own, and as he reported, one of my
working SDs also worked on his board. My experience is not as bad, but
out of my sizable collection, only two uSD cards are accepted by the
bootrom.


> 2017-06-14 18:49 GMT+02:00 Steve McIntyre <steve at einval.com>:
>>
>> Hey guys,
>>
>> I'm sstill stumped here with getting my Macchiato to boot off SD. I've
>> tried lots of different cards and can't find anything that will
>> work. The *only* card that I've seen work is the unlabelled/unknown
>> card that Ard brought with him to Cambridge last month. Nothing else
>> even comes close to booting on my board, which makes it really
>> difficult to get much further with doing anything on my machine.
>>
>> If it wasn't for this *one* SD card working fine first time, I'd be
>> tempted to say my machine had a hardware fault. I've tried multiple
>> Sandisk cards from 1GB up to 64GB, Samsung 32G, Toshiba 32G, Kingston
>> 8G and up, Intenso 4G. I'm waiting on another Kingston 4G card to land
>> tomorrow, to try that too. It's very frustrating. :-(
>>
>> I'm assuming failure logs are not interesting. I can supply them if
>> desired - just ask.
>
>
> Yes, please show the logs.
>
> Best regards,
> Marcin
>
>>
>>
>> In the meantime, I can see that there's a fallback option to boot via
>> UART. Is there any documentation about what's needed to use that
>> anywhere?
>>
>> --
>> Steve McIntyre, Cambridge, UK.
>> steve at einval.com
>>   Armed with "Valor": "Centurion" represents quality of Discipline,
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>>
>>
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>
>
>
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