RIGOL DS1000D - Manual (Page 76)

RIGOL
© 2008 RIGOL Technologies, Inc.
User’s Guide for DS1000E, DS1000D Series
2-46
Pattern Trigger (Only for DS1000D Series)
Pattern Trigger Mode: 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). Press Trigger MENU→Mode→Pattern to display the pattern trigger
menu as follows.
Figure 2- 60 Table 2- 36 The Pattern Trigger Menu
Menu Settings Comments
Select D15-D0 Choose digital channel for Pattern trigger
Code
H
L
X High
Low
Ignore
Rising Edge
Falling Edge
Sweep
Auto
Normal
Single
Acquire waveform even no trigger occurred
Acquire waveform when trigger occurred
When trigger occurs, acquire one waveform
and then stop
Set Up To go to set up menu, see table 2-40
Key Points:
1. H (High): Logic high: voltage is higher than threshold setting.
2. L (Low): Logic low: voltage is lower than threshold setting.
3. X (Ignore): Don’t care. If all the channels are ignored, the oscilloscope won’t
be triggered.
4. Rising Edge ( ) or Falling Edge ( ): Set the code as an edge of the
channel, 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).