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the value. For details, refer to descriptions in
Trigger Level
. The current trigger
level is displayed in the trigger information label at the top of the screen.
8.7.15 SPI Trigger
In SPI trigger, after the CS or timeout condition is satisfied, the oscilloscope triggers
when the specified data is found. When using SPI trigger, you need to specify the CLK
clock sources and MISO data sources.
The figure below shows the sequential chart of SPI bus.
SDA
SCL
CS
D7
D6 D5
D4 D3
D2 D1 D0
Figure 8.30 Sequential Chart of SPI Bus
Trigger Type
Click or tap the drop-down button of Type to select "SPI".
Figure 8.31 SPI Trigger Setting Menu
After a trigger type is selected, the current trigger setting information (including
trigger type, trigger source, and trigger level) is displayed in the trigger information
label at the top of the screen, as shown in the figure below. The information will
change based on the trigger settings.
Triggering the Oscilloscope
DHO4000 User Guide
110
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