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RIGOL Chapter 5 To Trigger the Oscilloscope
5-28 DS1000Z User Guide
Setup/Hold Trigger
In setup/hold trigger, you need to set the data signal line and clock signal line. The
setup time starts when the data signal passes the trigger level and ends at the
coming of the specified clock edge; the hold time starts at the coming of the
specified clock edge and ends when the data signal passes the trigger level again (as
shown in the figure below). The oscilloscope triggers when the setup time or hold
time is lower than the preset time.
T1
T
2
Data Source
Clock Source
T
2
T
1
is the setup time
is the hold time
The edge type is
The data type is H
Figure 5-11 Setup/Hold Trigger
Trigger Type:
Press Type to open the trigger type list. Rotate to select "StpHold" 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 setup/hold trigger; the current
trigger source is CH1; the trigger level is 0.00 V.
Source Selection:
Press DataSource and ClkSource to set the signal sources of the data line and
clock line respectively. They can be set to CH1-CH4. 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.
Note: Select channel with signal input as trigger source to obtain stable trigger.
Edge Type:
Press Slope to select the desired clock edge type and it can be set to the rising edge
or falling edge.
Data Type:
Press DataType to set the effective pattern of the data signal to H (high level) or L
(low level).
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