When debugging a system, you often want to capture the
state of some key signals when a certain event occurs. One
key event may be the transmission of specific data over
the I
2
C bus.
The MDO3000 Series Oscilloscope triggers on:
Start
Repeat Start
Stop
Missing Acknowledgements
Address
Data
Address & Data
To trigger on a specific address, follow these steps:
16. Press the front-panel Trigger Menu button.
17. Press the lower-bezel Type button and turn Multipurpose a to
select Bus.
18. Press the lower-bezel Trigger On button.
Notice the list of trigger choices. The key is that you can
trigger on all the important components of an I
2
C packet. Prior
to this, you had to hope that the acquisition you were making
contained the data of interest. Now you can guarantee it by
specifying the trigger condition.
www.tektronix.com/mdo3000 25
MDO3000 Series Oscilloscope
Demonstration Guide
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