MulitStage
Touching this MultiStage trigger type shows the additional MultiStage
types on the dialog. Select from Cascaded, QualFirst, and Qualified as
follows:
CASCADED
The Cascaded trigger allows you to define successive trigger Stages
(referred to as Stage A, B, C, and D) as arm, trigger/arm, trigger/arm,
trigger criteria, respectively.
QUALFIRST
In single trigger mode, QualFirst arms the oscilloscope on the A event,
and then triggers on all subsequent B events.
Note: This button is enabled when using the sequence sampling mode.
It is commonly used in sequence mode for disk drive applications with
the index pulse defined as the A qualifier signal and the servo gate
signal as the B triggering events.
QUALIFIED A-B
In single trigger mode, Qualify A-B arms the oscilloscope on the A event,
and then triggers on the B event. If the oscilloscope is in Normal trigger
mode, it automatically resets after the B event. Arm trigger events can
be set for Edge, Pattern, State, and PatState. State is briefly explained as
follows:
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