19-2233 PC2
2019-02-01
12(50)
ADQ7DC Manual
16-1796 PC2 2019-02-01
12(50)
4
TRIGGER
4.1 Trigger block diagram
The digitizer can be triggered in various ways with a number of different internal and external trigger
sources. Selected events in the trigger module can also be output to trigger external equipment. The
selection of trigger source is illustrated in
.
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DESCRIPTION
USER COMMAND
REF
a
Connectors for external analog input signals. The number of
channel vary on the different models and configurations.
b
Each analog input is connected to a level trigger block.
SetupLevelTrigger
c
Select on which channel to trigger (when using level trigger).
SetupLevelTrigger
d
Internal trigger generator.
SetInternalTriggerPeriod
e
A software trigger is available for user control.
SWTrig
f
External trigger input from backplane in PXIe or MTCA.
g
External trigger input on front panel connector TRIG.
h
External trigger input on front panel connector SYNC.
i
Select which type of trigger to activate.
SetTriggerMode
j
Activate trigger output.
SetupTriggerOutput
k
Select which channels to record data from.
SetStreamConfig
l
Acquisition engine creates a record from streaming data
m Records are sent to data FIFO for transfer to the host PC
n
The trigger blocking function controls the flow of triggers to the
acquisition engine.
SetupTriggerBlocking
o
Note that the trigger output and the external trigger input are
physically the same connector on the front panel: TRIG.
p
Frame sync is a function that can group triggers.
SetupFrameSync
Figure 3: Trigger source selection and setup illustrated for a 2 channels mode.
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