Z3 Technology, LLC
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100 N 8
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ST, STE 250
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Lincoln, NE 68508-1369 U.S.A.
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+1.402.323.0702
6
3 Testing modules and application boards
Since the DM8168-MOD-35 module has no I/O ports, it is necessary to use a carrier board of some sort to be
able to connect power and signal to the various inputs and outputs. The Z3-DM8168-APP-41 application
board was selected to be the carrier. The DM8168-MOD-35 requires a DM8168-APP-41 in order to be tested.
The DM8168-APP-41 board has all the I/O connections necessary to interface to the Z3-DM8168-MOD-35.
All the interfaces on the DM8168-APP-41 board match those of the DM8168-MOD-35 module, and therefore
the DM8168-MOD-35 module is required in order to test the DM8168-APP-41.
The DM8168-MOD-35 and the DM8168-APP-41 have to be paired in order for both to be tested.
The preferred method to test newly assembled DM8168-APP-41 boards and newly assembled
DM8168-MOD-35 is to test new boards as a pair:
1)
Plug a DM8168-MOD-35 to a DM8168-APP-41.
2)
Connect the cables and run the flash programming step followed by the functional test as described in
sections 5, 6 and 7 below.
3)
If the flash programming and functional test succeeds, then screw the boards together using 4 pcs of
M2.5 x 4mm screw and ship.
If any of the steps fail it becomes necessary to test each one individually to determine which board
requires rework.
Testing individual Z3-DM8168-MOD-35 modules consists of connecting a module to be tested onto a known
good DM8168-APP-41 application board and running the same programming and functional test processes.
In a similar manner, testing individual DM8168-APP-41 boards can be accomplishing by using a known good
DM8168-MOD-35 module. In this case, the module will already have had its flash programmed by the flash
programming step described in section 6, and therefore that procedure does not need to be executed again.
When testing DM8168-APP-41 boards with a known good module already containing the right firmware in
the flash it is only required to perform the functional tests step.
Please refer to section 9 for the procedure of how to erase and reload the flash.
