QY-IMX6S Linux Function And Test Manual
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2.11.SD Card Test
Supports 3 formats: fat32,exFAT,NTFS
QY-IMX6S provide 1-ch SD Card interface (J14) for users to use.
Test Principle
：
On board SD card interface support hot plug, after inserting SD card,
system will recognize SD card and print the relative information of SD
Card.
Generate device node and partition node in [/dev] directory. Then
system will automatically mount all partition to [/media/] directory.
Through read and write the corresponding directory files, you can judge
whether interface is normal or not.
Test Process & Result
：
The following test process is taken on the SD card which is with only
one partition. If with several partitions, please use the same test method.
Insert SD card and generate device node [/dev/mmcblk0]. Partition [n]
corresponds to partition device node [/dev/mmcblk0pn]
1.Here, insert a Kingston 8G SD card, print information as follows:
