Z3 Technology, LLC
♦
100 N 8
th
ST, STE 250
♦
Lincoln, NE 68508-1369 U.S.A.
♦
+1.402.323.0702
11
•
Certain GPIOs
•
Boot jumpers
•
I2C bus
•
Ethernet interface
•
NAND Flash
•
DDR3 SDRAM
•
Serial console port
6.3 Pass/Fail Criteria
When the procedure completes successfully, the console will display the message below:
*************************************
******** NAND update SUCCESS ********
*************************************
Z3-DM8168-MOD#
Any result different from this represents a failed test.
In this case, please troubleshoot the hardware or the test setup.
7 Functional Tests
Once the software is successfully written to the module’s flash as per section 6 above, further functional tests are
necessary to verify the correct assembly of the board.
The functional test mode is executed by powering up the system with pins while pins 11 and 13 of J20 are connected. It is
possible to insert a jumper block (in addition to the 3 jumper blocks already present) or to use a pair of tweezers to
connect the two pins during the power up sequence. It is necessary to keep the pins connected only for a brief moment.
The system indicates that it will execute the functional tests by printing the line “
Factory jumper detected.
” At the
beginning of the boot sequence. Once that line is printed, the tweezers can be removed. The pins 11 and 13 of J20 are
shown in
Figure 2
below.
