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doc/reference/storage/sdhc: Document SDSC support

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Add note about standard-capacity SD card support.

Signed-off-by: Markus Fuchs <markus.fuchs@de.sauter-bc.com>
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Markus Fuchs 2019-08-11 23:56:07 +02:00 • committed by Kumar Gala
commit c53755e5dd
1 changed files with 4 additions and 3 deletions
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7
doc/reference/storage/disk/sdhc.rst
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@ -3,16 +3,17 @@
SDHC disks
##########
Zephyr includes support for connecting an SDHC card via the SPI bus.
Zephyr includes support for connecting an SD card via the SPI bus.
This can be used with Zephyr's built-in filesystem support to read and
write FAT formatted cards.
write FAT formatted cards. Both standard and high-capacity SD cards are
supported.
The system has been tested with cards from Samsung, SanDisk, and 4V
with sizes from 2 GiB to 32 GiB in single partition mode. Higher
capacity cards should also work but haven't been tested. Please let
us know if they work!
MMC and SDSC (<= 2 GiB) cards are not supported and will be ignored.
MMC cards are not supported and will be ignored.
.. note:: The system does not support inserting or removing cards while the
system is running. The cards must be present at boot and must not be