Rigol DS1000C User Manual page 80

RIGOL
Pattern Trigger (Mixed Signal Oscilloscope)
Pattern trigger identifies trigger terms by checking appointed code. The code is
logical relationship of all channels, with high (H), low (L) and ignore(X).
Figure 2-59 Table 2-35
Menu
Select
Code
Sweep
Set Up
Key Points:
H (High): Logic high: voltage is higher than threshold setting.
L (Low): Logic low: voltage is lower than threshold setting.
X (Ignore): Don't care. If all the channels are ignored, the oscilloscope won't be
triggered.
Rising Edge ( ) or Falling Edge (
rising edge or falling edge. When the edge is appointed, if code settings of other
channels are all true, the oscilloscope will be triggered on the appointed edge. If no
edge is appointed, the oscilloscope will be triggered on the last edge whose code is
true.
Edge of appointed code
You can only appoint one code as edge. If you have appointed an edge, then
appointed another edge in a different channel, and the first appointed edge will
be set to X (Ignore).
2-50
Settings
D15-D0 Choose digital channel for Pattern trigger
H High
L Low
X Ignore
Rising Edge
Falling Edge
Acquire waveform even no trigger occurred
Auto
Acquire waveform when trigger occurred
Normal
When trigger occurs, acquire one waveform
Single
and then stop
To go to set up menu, see table 2-40
): Set the code as an edge of the channel,
© Copyright RIGOL Technologies, Inc. 2007.
User's Guide for DS1000 Series
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