From c53755e5dd58019b7c3fb3c24c848bf05378bca8 Mon Sep 17 00:00:00 2001 From: Markus Fuchs Date: Sun, 11 Aug 2019 23:56:07 +0200 Subject: [PATCH] doc/reference/storage/sdhc: Document SDSC support Add note about standard-capacity SD card support. Signed-off-by: Markus Fuchs --- doc/reference/storage/disk/sdhc.rst | 7 ++++--- 1 file changed, 4 insertions(+), 3 deletions(-) diff --git a/doc/reference/storage/disk/sdhc.rst b/doc/reference/storage/disk/sdhc.rst index 5ed87d9295c..cfeca3c7ba3 100644 --- a/doc/reference/storage/disk/sdhc.rst +++ b/doc/reference/storage/disk/sdhc.rst @@ -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