Nth Edge Trigger - Rigol MSO4000 Series User Manual

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Nth Edge Trigger

In Nth edge trigger, the oscilloscope triggers on the nth edge that appears after the
specified idle time.
For example, in the waveform as shown in the figure above, the idle time should
fulfill the following formula if the oscilloscope needs to trigger on the second rising
edge appears after the specified idle time.
Wherein,
P , P ,
1 2
the specified idle time.
Press MENU (in the trigger control area (TRIGGER) at the front panel)  Type, turn
the multi-function knob
press Type continuously to switch to "Nth Edge" trigger.
At this point, the trigger setting information (include the trigger type, trigger source
and trigger level/threshold level, as shown in the figure below) is displayed at the
upper-right side of the screen and changes with the trigger setting.
Set the Nth edge trigger:
1. Specify the trigger source and adjust the trigger level/threshold level
Press Source to select CH1 to CH4 or D0 to D15 (please refer to "Trigger
1)
Source"). The trigger source currently selected is displayed at the
upper-right side of the screen.
Note: Channels that are turned off can also be selected as the trigger
source.
Turn TRIGGER
2)
5-20
800.544.2843
P1 P2
P 1 /
and M are the idle times participate in the counting; IdleTime is
P 3
to select "Nth Edge" and press the knob. You can also
LEVEL to adjust the trigger level (when the trigger
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15
10 20
5 25
0 30
M
P3
＜ ＜
P 2 / P 3 IdleTime M
Chapter 5 Trigger
Edge Type: RisingEdge
Number of Edges: 2
MSO4000/DS4000 User's Guide
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