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Agilent 4155C/4156C VXIplug&play Driver User’s Guide, Edition 4 5-29

Programming Examples for C++ Users

Multi-Channel Pulsed Sweep Measurements

This section explains an example subprogram that performs multi channel pulsed

sweep measurement. The following subprogram performs I-V measurement and

saves the measurement results (bipolar transistor Ic-Ve and Ib-Ve characteristics)

into a file.

Table 5-10 Multi-Channel Pulsed Sweep Measurement Example

void perform_meas (ViSession vi, ViStatus ret) /* 1 */

{

ViInt32 emitter = 1; /* SMU1 */ /* 3 */

ViInt32 base = 2; /* SMU2 */

ViInt32 collector = 4; /* SMU4 */

ViReal64 vb = 0;

ViReal64 vc = 0;

ViReal64 ibcomp = 0.1;

ViReal64 iccomp = 0.1;

ViInt32 nop = 11;

ViInt32 mch[3];

ViInt32 mode[2];

ViReal64 range[2];

ViInt32 rep;

ViReal64 sc[11];

ViReal64 md1[11];

ViReal64 md2[11];

ViInt32 eod;

ViInt32 type;

ViReal64 mdata;

ViInt32 stat;

ViInt32 ch;

mch[0] = collector;

mch[1] = base;

mch[2] = 0;

mode[0] = 1;

mode[1] = 1;

range[0] = 0;

range[1] = 0; /* 33 */

Line Description

1 Beginning of the perform_meas subprogram.

3 to 33 Declares variables, and defines the value.

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