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Agilent 4155C/4156C VXIplug&play Driver User’s Guide, Edition 4 2-37

Driver Function Reference

hp4156b_setSweepSync

If mode=2, this is the stress time (in seconds). 500 μs to 655.0 s.

period Pulse period (in seconds). 2 μs to 10.0 s. Only for pulse stress.

The period value must match the width and delay values of the

hp4156b_addStressSyncPulse function. See Table 2-9.

For mode=1, if you set the automatic abort function by using the

hp4156b_stopMode function, the pulse output must be more

than 10 seconds (duration × period > 10 s).

NOTE Pulse Count and Pulse Period

Pulse count (duration) and pulse period (period) settings are effective for both

PGU1 and PGU2. If you use a PGU as a stress source set by this function and

another PGU as a pulse source set by the hp4156b_forcePulse function, check the

setting of these parameters. The parameter values must be the same as shown below.

hp4156b_setStress’s duration (pulse count) = hp4156b_forcePulse’s count

hp4156b_setStress’s period = hp4156b_forcePulse’s period

hp4156b_setSweepSync

This function specifies synchronous sweep source and sets the parameters. The

synchronous sweep source will be the additional staircase sweep source for the

staircase sweep measurements, the pulsed sweep measurements, or the staircase

sweep with pulsed bias measurements. The hp4156b_setIv or hp4156b_setPiv

function must be executed before this function.

For the staircase sweep measurements, the output synchronizes with the staircase

sweep output by the hp4156b_setIv function.

For the pulsed sweep measurements, the output synchronizes with the pulsed sweep

output by the hp4156b_setPiv function.

For the staircase sweep with pulsed bias measurements, the output synchronizes the

staircase sweep output by the hp4156b_setIv function and the pulse output by the

hp4156b_setPbias function.

Syntax ViStatus _VI_FUNC hp4156b_setSweepSync(ViSession vi, ViInt32 channel,

ViInt32 mode, ViReal64 range, ViReal64 start, ViReal64 stop, ViReal64 comp,

ViReal64 p_comp);

Parameters vi Instrument handle returned from hp4156b_init( ).

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