5-18 Agilent 4155C/4156C VXIplug&play Driver User’s Guide, Edition 4
Programming Examples for C++ Users
Multi-Channel Sweep Measurements
Multi-Channel Sweep Measurements
This section explains an example subprogram that performs multi channel sweep
measurement. The following subprogram performs I-V measurement and saves the
measurement results (bipolar transistor Ic-Vb and Ib-Vb characteristics) into a file.
Table 5-6 Multi-Channel 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 vb1 = 0.3;
ViReal64 vb2 = 0.8;
ViReal64 vc = 3;
ViReal64 ve = 0;
ViReal64 ibcomp = 0.01;
ViReal64 iccomp = 0.1;
ViReal64 iecomp = 0.1;
ViReal64 pcomp = 0;
ViInt32 nop = 11;
ViReal64 hold = 0;
ViReal64 delay = 0;
ViReal64 s_delay = 0;
ViReal64 p_comp = 0;
ViReal64 width = 0.001;
ViReal64 period = 0.01;
ViReal64 p_hold = 0.1;
ViInt32 mch[3];
ViInt32 mode[2];
ViReal64 range[2];
ViInt32 rep;
ViReal64 sc[11];
ViReal64 md[22];
ViInt32 st[22];
mch[0] = collector;
mch[1] = base;
mch[2] = 0;
mode[0] = 1;
mode[1] = 1;
range[0] = 0;
range[1] = 0; /* 37 */
Line Description
1 Beginning of the perform_meas subprogram.
3 to 37 Declares variables, and defines the value.
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