Microchip Technology HV2918, Руководство пользователя

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Installation and Operation

2020 Microchip Technology Inc. DS50003006A-page 21
2.6 TESTING THE HV2918 ANALOG SWITCH EVALUATION BOARD
The user can turn on/off each of the 32 switches through the USB connected PC GUI
software program by following the next steps:
1. Click the
Initialize HV MUX Controller button, located at the top left corner.
2. Clear STBY.
3. Select MODE.
4. Put 32-bit data in DIN to set switches on and off. Data 1 means the switch is on
and Data 0 means the switch is off.
5. Click the Set HV MUX button. The GUI and controller board now generate 32-bit
data and 32 clocks, followed by one LE negative pulse and the switches are on
and off according to DIN in the GUI.
6. Select CLR and click the Set HV MUX button to set all switches to off.
2.7 GENERATION OF PULSER OUTPUT AT SW7 OF HV2918
This section provides the simple step-by-step procedure to make the Ch1 pulser output
at the SW7 SMA connector with dummy loads by configuring the GUI.
1. Before powering up the HV2918 Analog Switch Evaluation Board, make sure
that the latest GUI software is installed on the PC.
2. Start the GUI program. If the board is not connected, a “Not Connected”
message is displayed in the Status bar located at the bottom left of the screen.
3. Power up the HV MUX Controller Board and HV2918 Analog Switch Evaluation
Board as described in the previous sections. The prompt, “Connected”, is
displayed in the Status bar.
4. Click the Initialize HV MUX Controller button and check the message window
to see “Initialization Complete”.
5. Clear STBY.
6. Select MODE.
7. Change the DIN to Bit 7 from ‘
0
’ to ‘
1
’ to set SW7 on
(DIN =
00000000 00000000 00000000 10000000
).
8. Click the Set HV MUX button to turn on the HV2918 SW7.
9. Change the Pulses to 10.
10. Select CH1.
11. Click the
Start button. CH1 pulser starts to generate pulse bursts with ten pulses
and 30 ms T
OFF
time.
Note: The typical voltage and waveforms are provided in Appendix C. “Demo
Board Waveforms” .