Pulsed Spot Measurement - Agilent Technologies B1500A User Manual

Table 4-4

Pulsed Spot Measurement

Table 4-4 explains an example subprogram that performs the pulsed spot
measurement. The following subprogram will apply voltage to a MOSFET, measure
drain current, and display the measurement result data.
Pulsed Spot Measurement Example
void perform_meas (ViSession vi, ViStatus ret)
{
ViInt32 drain;
ViInt32 gate;
ViInt32 source;
ViInt32 bulk;
drain = 1; /* SMU1 */
gate = 2; /* SMU2 */
source = 4; /* SMU4 */
bulk = 6; /* SMU6 */
ret = agb1500_setSwitch(vi, drain, 1);
ret = agb1500_setSwitch(vi, gate, 1);
ret = agb1500_setSwitch(vi, source, 1);
ret = agb1500_setSwitch(vi, bulk, 1);
check_err (vi, ret);
ViReal64 vd;
ViReal64 vg;
ViReal64 idcomp;
ViReal64 igcomp;
ViReal64 base;
ViReal64 width;
ViReal64 period;
ViReal64 hold;
ViReal64 meas;
ViInt32 status;
Line
1 Beginning of the perform_meas subprogram.
3 to 11 Declares variables, and defines the value.
13 to 16 Enables measurement channels.
17 Calls the check_err subprogram (shown in Table 4-1) to check if
an error status is returned for the previous line.
19 to 28 Declares variables, and defines the value.
Agilent B1500 VXIplug&play Driver User's Guide, Edition 3
Programming Examples for C++ Users
Pulsed Spot Measurement
Description
/* 1 */
/* 3 */
/* 11 */
/* 13 */
/* 17 */
/* 19 */
/* 28 */
4-11