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Figure 8.27 I2C 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.
Source Selection
Click or tap the drop-down buttons of SCL and SDA to select CH1-CH4 to specify the
sources of SCL and SDA respectively. For details, refer to descriptions in
Source
The selected trigger source is indicated in the trigger information label at the
top of the screen.
Only when you select the channel that has signal inputs as the trigger source, can you
obtain a stable trigger.
Trigger Condition
Set the desired trigger condition in the When item.
•
Start: triggers when SDA data transitions from high level to low level while SCL
is high level.
•
Stop: triggers when SDA data transitions from low level to high level while SCL is
high level.
•
Restart: triggers when another start condition occurs before a stop condition.
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Triggering the Oscilloscope
Trigger
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DHO1000 User Guide
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