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RSB-4410 User Manual
Chapter 2
H
/W Installation
2.5
Test Tools
All test tools must be verified on RSB-4410 , please prepare required test fixtures
before verifying each specified I/O. If you have any problem to get the test fixture,
please contact your Advantech contact window for help.
2.5.1
eMMC Test
1.
Erase and check.
#dd if=/dev/zero of=/dev/mmcblk0 bs=1024 count=1
seek=25118
1+0 records in
1+0 records out
#hexdump -C /dev/mmcblk0 -s 25720832 -n 16
01887800 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |................|
2.
Write and check.
#echo -n "0123456789ABCDEF" | dd of=/dev/mmcblk0 bs=1024 count=1
seek=25118
0+1 records in
0+1 records out
#hexdump -C /dev/mmcblk0 -s 25720832 -n 16
01887800 30 31 32 33 34 35 36 37 38 39 41 42 43 44 45 46 |0123456789ABCDEF|
2.5.2
USB Test
1.
Insert USB flash disk then assure it is in RSB-4410 device list.
2.
Erase and check
#dd if=/dev/zero of=/dev/mmcblk0 bs=1024 count=1
seek=25118
1+0 records in
1+0 records out
#hexdump -C /dev/mmcblk0 -s 25720832 -n 16
01887800 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |................|
3.
Write and check
#echo -n "0123456789ABCDEF" | dd of=/dev/mmcblk0 bs=1024 count=1
seek=25118
0+1 records in
0+1 records out
#hexdump -C /dev/mmcblk0 -s 25720832 -n 16
01887800 30 31 32 33 34 35 36 37 38 39 41 42 43 44 45 46 |0123456789ABCDEF|
2.5.3
SD Test
1.
When booting from eMMC, you would see only below directories:
#ls /dev/mmcblk*
/dev/mmcblk0 /dev/mmcblk0boot0 /dev/mmcblk0boot1 /dev/mmcblk0p1
2.
Insert SD card to SD card slot (SD1) and check your device again. You should
be able to see more directories. /dev/mmcblk1 is the SD card storage.
#ls /dev/mmcblk*
/dev/mmcblk0 /dev/mmcblk0boot1 /dev/mmcblk1 /dev/mmcblk1p2
/dev/mmcblk0boot0 /dev/mmcblk0p1 /dev/mmcblk1p1
Note!
Please make sure parameter “seek” is equal to 25118 as indicated in
red in above codes. If you create the file to a wrong sector, that may
damage the system.
Note!
This operation may damage the data stored in USB flash disk. Please
make sure there is no critical data in the USB flash disk being used for
this test.
