Beaglebone Black Wireless SDHC / SDXC support?

[don_wrt]

Dear All,

If I am not wrong, BBBWL 's SDIO interface supports SD and SDHC, and does not support SDXC, right?  

I am confusing about the this Kingston microSD (PN: SDCIT/16GB) card compatible with BBBWL, or not?

Best Regards,

[Dennis Lee Bieber]

On Tue, 25 Dec 2018 03:50:25 -0800 (PST), don_wrt
<tugay...@stu.ee.hacettepe.edu.tr> declaimed
the following:

>Dear All,
>
>If I am not wrong, BBBWL 's SDIO interface supports SD and SDHC, and does
>not support SDXC, right?
>I am confusing about the this Kingston microSD

><https://www.kingston.com/datasheets/SDCIT_us.pdf> (PN: SDCIT/16GB) card

>compatible with BBBWL, or not?
>

SD => LESS than 4GB, native FAT file system
SDHC => (high capacity) 4-32GB, native FAT file system
SDXC => (?eXtreme capacity) 64GB and larger, native exFAT file
system

(though since the BBB reformats into one of the Linux ext# file systems,
knowing the native format doesn't mean much... More of a problem on R-Pi,
since their NOOBS releases start as FAT, and format the rest of the card
into ext# during install).

I know of NO cards in the 16GB range that use SDXC protocol.


--
Wulfraed Dennis Lee Bieber AF6VN
wlf...@ix.netcom.com HTTP://wlfraed.home.netcom.com/

[Bill Fleming]

Any SD, SDHC, or SDXC should work on any BBB. As long as you don't try to use any "funny" cards such as the old non-standard 4 GB SD models, you shouldn't have any issues.

Note that for programming and booting a full system image (with desktop interface) you really want an 8 GB or larger SDHC card.

Otherwise you can use any cards that you want and put any filesystem on them that you want that Linux supports.

Bill

[Dennis Lee Bieber]

On Wed, 26 Dec 2018 10:24:23 -0800 (PST), Bill Fleming
<bill.f...@teamfdi.com> declaimed the
following:

>Any SD, SDHC, or SDXC should work on any BBB. As long as you don't try to
>use any "funny" cards such as the old non-standard 4 GB SD models, you
>shouldn't have any issues.

Based upon a search, the chipset is SDIO v2 compliant. SDXC is SDIO v3
spec.

[Robert Nelson]

On Wed, Dec 26, 2018 at 3:07 PM Dennis Lee Bieber <wlf...@ix.netcom.com> wrote:
>
> On Wed, 26 Dec 2018 10:24:23 -0800 (PST), Bill Fleming
> <bill.f...@teamfdi.com> declaimed the
> following:
>
> >Any SD, SDHC, or SDXC should work on any BBB. As long as you don't try to
> >use any "funny" cards such as the old non-standard 4 GB SD models, you
> >shouldn't have any issues.
>
> Based upon a search, the chipset is SDIO v2 compliant. SDXC is SDIO v3
> spec.

100% correct..

Some SDXC SDIO v3 cards support SDIO v2 transfer modes, if you search
this forum you'll find a bunch of test'ed microSDXC cards that work
fine..

What i advise everyone, "buy" "1" and test it before you put in a
order greater then 2...

Regards,

--
Robert Nelson
https://rcn-ee.com/