Agilent Technologies B1500A Guia do Utilizador descarregar pdf (Página 81)

Agilent B1500 VXIplug&play Driver User’s Guide, Edition 3 2-65

Driver Functions

agb1500_startMeasure

This function starts the specified measurement by the specified channels. You can

read the measured data by using the agb1500_readData function. The measurement

data is entered to the B1500 output buffer in the measurement order. If you want to

abort the measurement, use the agb1500_abortMeasure function.

Syntax ViStatus _VI_FUNC agb1500_startMeasure(ViSession vi, ViInt32 meas_type,

ViInt32 channel[ ], ViInt32 mode[ ], ViReal64 range[ ], ViInt32 source,

ViInt32 timestamp, ViInt32 monitor);

Parameters vi Instrument handle returned from agb1500_init( ).

meas_type Measurement type.

1: multi spot

2: staircase sweep

3: pulse spot

4: pulse sweep

5: sweep with pulsed bias

9: quasi pulsed spot

10: sampling (IV)

14: linear search

15: binary search

16: multi channel sweep

17: spot C

18: CV sweep

channel[ ] Slot number of the slot that installs the SMU/MFCMU to be

used. See Table 2-2.

channel=-1 detects the CMU slot automatically.

Enter 0 to the last element of channel[ ]. For example, if you use

two channels, set the array size to 3, specify the channels to the

first and second elements, and enter 0 to the third element.

For meas_type=1, 2, 10, or 16, up to ten measurement channels

can be set.

For meas_type=3, 4, 5, 9, 17, or 18, only one measurement

channel can be set.

For meas_type=14 or 15, set 0 (NULL pointer) instead of

channel [ ].

mode[ ] Measurement mode.

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Agilent Technologies B1500A Guia do Utilizador Página 81