Model 4200A-SCS Parameter Analyzer Reference Manual
Section 13: LPT library function reference
4200A-901-01 Rev. C / February 2017
13-153
Also see
(on page 13-138)
(on page 13-141)
(on page 13-143)
(on page 13-146)
(on page 13-155)
pulse_trig_output
This command sets the output trigger on or off.
Usage
int pulse_trig_output(int
instr_id
, long
state
);
instr_id
The instrument identification code of the pulse card, such as VPU1 or VPU2
state
Output trigger state:
•
Off:
0
(default for Segment Arb and full arb)
•
On:
1
(default for standard pulse)
Pulse modes
Standard, Full Arb, Segment Arb
Details
This command turns the TTL-level trigger output pulse on or off. The pulse is used to synchronize
pulse output with the operations of an external instrument. When connected to a scope, each output
pulse of triggers a scope waveform measurement.
When output trigger is enabled, an output pulse will initiate a TTL-level, 50% duty cycle output trigger
pulse. The trigger pulses are available at the TRIGGER OUT connector of the pulse generator card.
The figure below shows the behavior of output triggers (T
O
) for the three trigger modes. Notice that for
the Burst mode, output triggers continue even though pulse output has stopped. For the trigger burst
mode, output triggers stop when the pulse output stops.
Figure 511: Pulse generator card output trigger
