User`s guide

Agilent 4155C/4156C VXIplug&play Driver User’s Guide, Edition 1 2-7
Driver Functions
hp4156b_addSampleSyncPulse
hp4156b_addSampleSyncPulse
This function specifies the pulse source (PGU) used for the sampling measurements,
and sets the parameters. Pulse outputs start at the beginning of the sampling
measurement (beginning of the hold time), and stop at the end of the last sampling
measurement point or stop at the last pulse if it comes earlier than the last sampling
measurement point.
Sampling measurement channels are defined by the hp4156b_sample function, and
sampling measurement timing is defined by the hp4156b_setSample function.
If you want to let the pulse output synchronize with the sampling measurement
timing, you should define carefully both the hp4156b_addSampleSyncPulse timing
parameters (count, period, width, delay, rise and fall) and the hp4156b_setSample
timing parameters.
Syntax ViStatus _VI_FUNC hp4156b_addSampleSyncPulse(ViSession vi, ViInt32 channel,
ViReal64 base, ViReal64 peak, ViInt32 count, ViReal64 period, ViReal64 width,
ViReal64 delay, ViReal64 rise, ViReal64 fall);
Parameters vi Instrument handle returned from hp4156b_init( ).
channel Channel number of the pulse generator unit.
27 (PGU1) or 28 (PGU2)
base Pulse base value. -40.0 to 40.0 V.
peak Pulse peak value. -40.0 to 40.0 V.
count Pulse count (number of pulses). 1 to 65535, or 0 (free run
mode).
period Pulse period. 1E-6 to 10.0 seconds.
width Pulse width. 1E-6 to 9.99 seconds.
delay Pulse delay time. 0.0 to 10.0 seconds.
rise Pulse leading time. 0.1E-6 to 10E-3 seconds.
fall Pulse trailling time. 0.1E-6 to 10E-3 seconds.