3152B User Manual
Publication No. 980935 Rev. A
3-10
Operation
EADS North America Test and Services
creating a continuous sequence of delayed burst cycles. Use the
following commands to place the instrument in Burst mode and to
program the burst counter:
init:cont off
Selects the interrupted run mode. If you
have not selected a specific interrupted
run mode since power-up, the generator
will automatically be placed in triggered
run mode.
trig:burs 1
Turns the Burst mode on.
trig:burs:coun <value>
Sets the burst counter. After a legal trigger
event, the instrument will generate the
counted number of waveforms, and then
resume idling at a DC level.
<burst event>
This starts the burst generator. You may
select the source of the burst event from a
number of inputs including software
trigger, front-panel input, or VXIbus
backplane trigger line.
The counted burst sequence will continue as long as legal trigger
events are present at the trigger input. Use the following commands
to restore Continuous mode:
trig:burs 0
This turns off Burst mode. The generator
reverts to Triggered run mode.
init:cont on
This removes the 3152B from an
interrupted run mode and reverts to
Continuous run mode.
Selecting the
Trigger Source
Interrupted run modes require trigger signals, of which there are
three types:
•
External trigger. For synchronizing with external events,
connect the external trigger signal to one of the trigger inputs.
•
Internal trigger generator. For applications not requiring
synchronization to external signals, the 3152B has an internal
trigger generator with a free-running clock. This clock is
asynchronous to the sample clock generator.
•
Software trigger. Your software may generate an interrupt
condition by executing a trigger command.
You may select (arm) only one trigger source at a time. The 3152B
responds only to the selected trigger source, and ignores other
sources. Use one of the following commands to select a trigger
source:
trig:sour ext
This selects the front-panel TRIG IN
connector as the active source for trigger
events.
trig:sour int
This selects the internal trigger generator
Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com