Agilent Technologies InfiniiVision DSO6014L, Руководство пользователя

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176 6000 Series Oscilloscope User’s Guide
4 Triggering the Oscilloscope
• Pattern 2 Entered
— A pattern is entered on the last edge that
makes the pattern true (logical AND).
•
Pattern 2 Exited
— A pattern is exited on the first edge that
makes the pattern false (logical NAND).
• Edge 2
• Pattern 2 and Edge 2
•
Nth Edge 2
• Nth Edge 2 (no re-find)
2
Press the
Trigger:
softkey and select a stage to trigger on.
3
To define the term(s) used in the Trigger on: stage, press the
Term
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
H (high), L (low), or X (don't care).
a
Press the
Channel
softkey (or rotate the Entry knob on
mixed-signal oscilloscopes) to select the channel.
b
Press the
L H 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 on
mixed-signal oscilloscopes) 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.