Appendix
IBR210 User’s Manual
39
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 IBR210
Page 1: ...IBR210 3 5 ARM based SBC With NXP Cortex A53 Quad i MX8M User s Manual Version 0 3 May 2020...
Page 8: ...viii IBR210 User s Manual This page is intentionally left blank...
Page 15: ...General Information IBR210 User s Manual 7 1 1 6 Dimensions Unit mm...
Page 16: ...8 IBR210 User s Manual IBR210 Reference Heat Sink...
Page 20: ...12 IBR210 User s Manual 2 3 Jumper Connector Locations on IBR210...
Page 36: ...28 IBR210 User s Manual This page was intentionally left blank...
Page 45: ...37 Appendix This section provides reference code information...