I2C Trigger - Rigol DS6000 Series User Manual

5 To Trigger the Oscilloscope

I2C Trigger

Trigger on the start condition, restart, stop and missing acknowledgement or on the
read/write frame with specific device address and data value. When using I2C trigger,
you need to specify the SCL and SDA data sources. The figure below shows the
complete data transmission of I2C bus.
Trigger Type:
Press Type to select "I2C". At this point, the trigger setting information as shown in
the figure below is displayed at the upper-right corner of the screen.
Source Selection:
Press SCL and SDA to specify the data sources of SCL and SDA respectively.
CH1-CH4 can be selected as the data source. The current trigger source is displayed
at the upper-right corner of the screen.
Trigger Condition:
Press When to select the desired trigger condition.
Start: trigger when SDA data transitions from high to low while SCL is high.

Restart: trigger when another start condition occurs before a stop condition.

Stop: trigger when SDA data transitions from low to high while SCL is high.

Missing ACK: trigger when the SDA data is high during any acknowledgement of

SCL clock bit.
DS6000 User's Guide
RIGOL
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