C-20 Description of Self Test Items
C.1.42 Z1401 DSP FPGA and 4D&TEE Board
Interconnection Test
◼ Top test item
PC module and DSP FPGA interconnection test
◼ Test content
The program checks 4D probe is not plugged in, and then read the signal in the place to decide
whether 4D&TEE board is in the place, then read 4D&TEE board’s ID. The interconnection
between DSP FPGA and 4D&TEE board works well if it appears non-0 and non-F.
◼ Analysis to test failure
The drive goes wrong if the test result appears Error.
Mini 4D&TEE board is not in the place if the information “4D&TEE board is not in the place”
appears or the circuit is not in the place.
The interconnection between DSP FPGA and 4D&TEE board goes wrong if the test fails.
◼ Suggestion to failure test
Restart the device to perform the self test if the test result appears Error. It is necessary to restore
the device (OS+doppler) if Error re-appears.
It is recommended to replace 4D&TEE board if the test result is FAIL.
C.1.43 Z1402 4D&TEE Board Driver Circuit Test
◼ Top test item
Communication test between DSP FPGA and 4D&TEE board
◼ Test content
Set DA output sine signals of Sin+ drive circuit and Sin- drive circuit. After being magnified, AD
collects the signal to decide the frequency and the amplitude. Set output cosine signals of Cos+
drive circuit and Cos- drive circuit. After being magnified, AD collects the signal to decide the
amplitude.
◼ Analysis to test failure
The drive goes wrong if the test result appears Error.
The drive circuit goes wrong if the information “The test of XXX drive circuit fails” appears.
◼ Suggestion to failure test
Restart the device to perform the self test if the test result appears Error. It is necessary to restore
the device (OS+doppler) if Error re-appears.
It is recommended to replace 4D&TEE board if the test result is FAIL.
C.1.44 Z1403 4D&TEE Board Programmable Voltage Test
◼ Top test item
Communication test between DSP FPGA and 4D&TEE board
◼ Test content
Set programmable voltage PVPP, NVPP to output the related voltage (set 5 voltage points). After
being magnified, AD collects the voltage value to decide the amplitude.
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