doc/reference/storage/sdhc: Document SDSC support
Add note about standard-capacity SD card support. Signed-off-by: Markus Fuchs <markus.fuchs@de.sauter-bc.com>
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SDHC disks
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##########
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Zephyr includes support for connecting an SDHC card via the SPI bus.
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Zephyr includes support for connecting an SD card via the SPI bus.
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This can be used with Zephyr's built-in filesystem support to read and
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write FAT formatted cards.
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write FAT formatted cards. Both standard and high-capacity SD cards are
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supported.
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The system has been tested with cards from Samsung, SanDisk, and 4V
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with sizes from 2 GiB to 32 GiB in single partition mode. Higher
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capacity cards should also work but haven't been tested. Please let
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us know if they work!
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MMC and SDSC (<= 2 GiB) cards are not supported and will be ignored.
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MMC cards are not supported and will be ignored.
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.. note:: The system does not support inserting or removing cards while the
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system is running. The cards must be present at boot and must not be
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