Check_Err Vi, Ret - Agilent Technologies B1500A User Manual

Table 4-6
Table 4-6 uses the agb1500_setSweepSync function to perform MOSFET Id-Vg
measurement.
Staircase Sweep Measurement Example 2
void perform_meas (ViSession vi, ViStatus ret)
{
ViInt32 drain =
ViInt32 gate =
ViInt32 source =
ViInt32 bulk =
ViReal64 vd =
ViReal64 vg =
ViReal64 idcomp =
ViReal64 igcomp =
ViReal64 hold =
ViReal64 delay =
ViReal64 s_delay =
ViReal64 pdcomp =
ViReal64 pgcomp =
ViInt32 nop =
ViInt32 rep;
ViReal64 sc[11];
ViReal64 md[11];
ViInt32 st[11];
ViReal64 tm[11];
ViInt32 i;
ViChar f_name[] = "C:\\Agilent\\ex\\data2.txt";
ViChar head1[] = "Vg (V),
ViChar msg1[] = "Saving data...";
ViChar msg2[] = "Data save completed.";
ViChar c = '\n';
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);
Line
1 Beginning of the perform_meas subprogram.
4 to 31 Declares variables, and defines the value.
33 to 36 Enables measurement channels.
37 Calls the check_err subprogram (shown in Table 4-1) to check if
an error status is returned for the previous line.
Agilent B1500 VXIplug&play Driver User's Guide, Edition 3
Programming Examples for C++ Users
Staircase Sweep Measurement
1; /* SMU1 */
2; /* SMU2 */
4; /* SMU4 */
6; /* SMU6 */
3;
3;
0.05;
0.01;
0;
0;
0;
0;
0;
11;
Id (mA), Time (sec), Status";
Description
/* 1 */
/* 4 */
/* 31 */
/* 33 */
/* 37 */
4-17