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Chapter 5 To Trigger the Oscilloscope RIGOL
DS1000Z User Guide 5-15
Pattern Trigger
Identify a trigger condition by looking for a specified pattern. This pattern is a logical
"AND" combination of channels. Each channel can have a value of high (H), low (L)
or don't care (X). A rising or falling edge (you can only specify a single edge) can be
specified for one channel included in the pattern. When an edge is specified, the
oscilloscope will trigger at the edge specified if the pattern set for the other channels
are true (namely the actual pattern of the channel is the same with the preset
pattern). If no edge is specified, the oscilloscope will trigger on the last edge that
makes the pattern true. If all the channels in the pattern are set to "Don’t Care", the
oscilloscope will not trigger.
…
L
H
(CH1-CH4 or D0-D15)
…
(CH1-CH4 or D0-D15)
Figure 5-6 Pattern Trigger
Trigger Type:
Press Type, rotate to select "Pattern" and press down . At this point, the
trigger setting information is displayed at the upper right corner of the screen.
For example, . The trigger type is pattern trigger; the current
trigger source is CH1; the trigger level is 0.00 V.
Source Selection:
Press Source to open the signal source list and select CH1-CH4 or D0-D15. For the
details, please refer to the introduction in "
Trigger Source". The current trigger
source is displayed at the upper right corner of the screen.
Pattern Setting:
Press Code to set the pattern of the current signal source. At this point, the
corresponding pattern is displayed at the bottom of the screen. The patterns of
channels CH1-CH4 and D0-D15 are presented from left to right as shown in the
figure below.
: set the pattern of the channel selected to "H", namely the voltage level is
higher than the trigger level of the channel.
: set the pattern of the channel selected to "L", namely the voltage level is
lower than the trigger level of the channel.
: set the pattern of the channel selected to "Don’t Care", namely this channel
is not used as a part of the pattern. When all channels in the pattern are set to
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