OWON MSO Series User Manual
Page 77
72
Function
Settings
Instructions
Signal choice
CH00～CH0F
CH00-CH0F can be set as trigger resource
Slope
Rising
Falling
Either
Trigger on the rising edge.
Trigger on the falling edge.
Trigger either on rising edge or falling edge.
For example: to measure a 3 lines SPI signal which includes enable, clock and data. The
data get into effective when enable is low voltage. We use CH00、
CH01、
CH02 to measure
the data, CH00 to measure enable signal, CH01 and CH02 to measure clock and data.
Trigger setting steps as below:
A. Press "Trigger menu" and menu appears.
B. Press "F1" till trigger mode display as "Edge".
C. Press "F2" till source display as "CH00"
D. Press "F3" till type display as "Falling".
Then trigger setting is finished (refer to
Fig.5-55
) and ready for data acquisition.
Fig.5-55
：Edge trigger setting
2. BUS trigger: set BUS as trigger source and make data on BUS as the trigger condition
to make trigger. BUS trigger menu refer to
Fig.5-56