Embedded board with good support out of the box?

Chris Johns chrisj at rtems.org
Tue May 26 23:38:20 UTC 2015

On 27/05/2015 6:17 am, Steve B wrote:
> On Fri, May 22, 2015 at 11:28 AM, Mr. Andrei Chichak <groups at chichak.ca
> <mailto:groups at chichak.ca>> wrote:
>     I haven’t managed to wrap my head around the filesystem/SD card
>     system in RTEMS yet. The projects that I have been working on, until
>     recently, didn’t need logging. One project I did do that used SD
>     cards, I used a chunk of code called FatFS that “worked”. On the
>     STM32F4, people are getting a blazing 4MB/second write speed using a
>     class 10 card and the SD 4-bit interface (beware of the specs, class
>     10 can actually mean 10MB/sec read, but 0.5MB/sec write - thanks
>     Kingston). That was about half of what our project required.
> Thanks.. if that's the one from elm-chan.org <http://elm-chan.org> then
> I've heard of it and would have been considering it for sure if I was
> going to go totally bare metal. Wasn't sure how well it would mix with
> RTEMS or another RTOS but if it is known to work reasonably well, then
> "problem solved" as far as I'm concerned. Those write speeds you mention
> (even worst case) should be good enough for me.

It is used in the Xilinx FSBL to boot a Zynq from an SD card.

I am using it with LFN and it seems fine.


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