Beaglebone Black Wireless SDHC / SDXC support?

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1

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,

2

On Tue, 25 Dec 2018 03:50:25 -0800 (PST), don_wrt
<tugay.doner@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&gt; (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.

3

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

4

On Wed, 26 Dec 2018 10:24:23 -0800 (PST), Bill Fleming
<bill.fleming@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.

5

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,