IBR215 User Manual
43
C.
eMMC Test
Note:
This operation may damage the data stored in eMMC flash.
Before starting the test, make sure there is no critical data in the
eMMC flash being used.
•
Read, write, and check
MOUNT_POINT_STR="/var"
#create data file
dd if=/dev/urandom of=/tmp/data1 bs=1024k count=10
#write data to emmc
dd if=/tmp/data1 of=$MOUNT_POINT_STR/data2
bs=1024k count=10
#read data2, and compare with data1
cmp $MOUNT_POINT_STR/data2 /tmp/data1
•
eMMC speed test
MOUNT_POINT_STR="/var"
#get emmc write speed"
time dd if=/dev/urandom of=$MOUNT_POINT_STR/test
bs=1024k count=10
# clean caches
echo 3 > /proc/sys/vm/drop_caches
#get emmc read speed"
time dd if=$MOUNT_POINT_STR/test of=/dev/null
bs=1024k count=10
Summary of Contents for IBR215
Page 10: ...General Information IBR215 User Manual 5 1 1 5 Product View...
Page 11: ...General Information IBR215 User Manual 6 1 1 6 Dimensions IBR215 Unit mm IBR215 IO...
Page 15: ...General Information IBR215 User Manual 10 1 2 3 Connectors on the IBR215 Main Board...
Page 25: ...General Information IBR215 User Manual 20 1 2 5 Connector Locations on the IBR215 IO Board...
Page 46: ...41 Appendix This section provides the information of reference code...
Page 58: ...IBR215 User Manual 53...