Agilent Technologies B1500A

Agilent B1500 VXIplug&play Driver User’s Guide, Edition 3 2-33
Driver Functions
agb1500_measureP
Example ViSession vi;
ViStatus ret;
ViReal64 v1 = 3; /* output voltage */
ViInt32 vmode = 2; /* voltage output mode */
ViInt32 mch[3]; /* source and measurement channels */
mch[0] = 1; /* SMU1 for the 1st measurement channel*/
mch[1] = 2; /* SMU2 for the 2nd measurement channel*/
mch[2] = 0;
ret = agb1500_setSwitch(vi, mch[0], 1);
ret = agb1500_setSwitch(vi, mch[1], 1);
ret = agb1500_force(vi, mch[0], vmode, 0, 0, 0.1, 0);
ret = agb1500_force(vi, mch[1], vmode, 0, v1, 0.1, 0);
ViInt32 mode[2]; /* measurement mode */
mode[0] = 1; /* current measurement for 1st channel */
mode[1] = 1; /* current measurement for 2nd channel */
ViReal64 range[2]; /* measurement range */
range[0] = 0; /* auto ranging for 1st channel */
range[1] = 0; /* auto ranging for 2nd channel */
ViReal64 md[2]; /* md[0],md[1]: data of 1st,2nd channel */
ViInt32 st[2]; /* st[0],st[1]: status of 1st,2nd channel */
ret = agb1500_measureM(vi, mch, mode, range, &md[0], &st[0], 0);
agb1500_measureP
This function executes a pulsed spot measurement by the specified channel, and
returns the measurement result data, measurement status, and time stamp data.
Syntax ViStatus _VI_FUNC agb1500_measureP(ViSession vi, ViInt32 channel,
ViInt32 mode, ViReal64 range, ViPReal64 value, ViPInt32 status, ViPReal64 time);
Parameters vi Instrument handle returned from agb1500_init( ).
channel Slot number of the slot that installs the SMU to be used. See
Table 2-2.
mode Measurement mode. 1 (current) or 2 (voltage).
range Measurement ranging mode. 0 (auto), positive value (limited
auto), or negative value (fixed range). For the available values,
see Table 2-3.
value Measurement data. Returned data.
status Measurement status. Returned data. See “Status Code” on page
2-14. To disable the status data output, set 0 (NULL pointer)
instead.
time Time stamp data (measurement start time). Returned data. To
disable the time stamp data output, set 0 (NULL pointer)
instead.