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Trigger Level

Click or tap the Level input field to set the trigger level with the pop-up numeric

keypad. You can also use the front-panel trigger level knob or the corresponding

multipurpose knob to set the trigger level. 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.

8.7.14 I2C Trigger

I2C is a 2-wire serial bus used to connect the microcontroller and its peripheral

device. It is a bus standard widely used in the microelectronic communication control

field.

The I2C serial bus consists of SCL and SDA. Its transmission rate is determined by SCL,

and its transmission data is determined by SDA, as shown in the figure below. The

instrument triggers on the start condition, restart, stop, missing acknowledgment,

specific device address, or data value. Besides, it can also trigger on the specific

device address and data values at the same time.

Figure 8.26 Sequence Diagram of I2C Protocol

Trigger Type

Click or tap the drop-down button of Type to select "I2C".

Triggering the Oscilloscope

DHO900 User Guide

Rigol DHO914 User Manual

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