5 To Trigger the Oscilloscope RIGOL
DS6000 User’s Guide 5-17
Pattern Trigger
Identify the trigger condition through searching for the specified pattern. Pattern is
the logic "AND" combination of each channel and the value of each channel can be H
(High), L (Low) or X (Don’t Care). One channel in the pattern can be specified with
rising edge or falling edge and if the pattern settings of all the other channels are
"True" (namely, the actual pattern of the channel is the same with the preset pattern;
H or L), the oscilloscope will trigger on the specified edge. If no edge is specified, the
oscilloscope will trigger on the last edge that makes the pattern as "True". If patterns
of all the channels are set to "Don’t Care", the oscilloscope would not trigger.
Trigger Type:
Press Type to select "Pattern". At this point, the trigger setting information as shown
in the figure below is displayed at the upper-right corner of the screen.
Channel Selection:
Press Source to select CH1-CH4 or EXT as the Trigger Source for H, L, X or edge
condition. The current trigger source is displayed at the upper-right corner of the
screen.
Pattern Setting:
Press Code to set the pattern code of the current channel. At this point, the pattern
setting area will be displayed at the bottom of the screen, see below.
: set the pattern of the channel selected to "H", namely the voltage level is
higher than the threshold level of the channel.
: set the pattern of the channel selected to "L", namely the voltage level is
lower than the threshold level of the channel.
: set the pattern of the selected channel to "Don’t Care", namely this channel
is not a part of the pattern. When all the channels in the pattern are set to "Don’t
Care", the oscilloscope will not trigger.
or : set the pattern to the rising or falling edge of the channel selected.
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