Triggering 4
InfiniiVision 7000B Series Oscilloscopes User’s Guide 135
3 To define the term(s) used in the Trigger on: stage, press the Te r m
softkey and select the pattern or edge term displayed in the Trigger:
softkey.
4 If you select a pattern term, each channel in the pattern must be set to
a 1 (high), 0 (low), or X (don't care).
a Press the Channel softkey (or rotate the Entry knob) to select the
channel.
b Press the 0 1 X softkey to set a level for the channel.
c Repeat for all channels in the pattern.
5 If you select an edge term, one channel must be set to a rising edge or
a falling edge. All other channel edges will be set to don’t care (X).
a Press the Channel softkey (or rotate the Entry knob) to select the
channel.
The channel you select is shown in the upper-right corner of the
display next to “Seq”.
b Then press
the X softkey to select rising edge or falling
edge. All other channel edges will be defaulted to don’t care.
6 When you set a Trigger on: condition to trigger on Edge 2, you can also
select which occurrence of Edge 2 to trigger on.
a Make sure Nth Edge 2 or Nth Edge 2 (no re-find) is selected in the Trigger:
softkey.
When Nth Edge 2 is selected, if the Find event occurs again before the
Count (N) event is satisfied, Count (N) will be reset to zero.
When Nth Edge 2 (no re-find) is selected, if the Find event occurs again
before the Count (N) event is satisfied, the Count (N) is not reset to
zero.
b Press the Ter m softkey and select Count (N).
c Press the N softkey, then turn the Entry knob to set the number of
edges to wait before triggering.
N can be set from 1 to 10,000.
If the term(s) used in the “Trigger on:” Sequence Stage condition are set to “don’t care,”
the oscilloscope will not trigger. At least one term in the stage must be set to a value other
than X (don’t care).
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