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Boonton55xxx IVI Driver Reference

Btn55xxx_FetchPeriod Function
AutoMeasurements See Also

Returns the interval between two successive pulses. (Reciprocal of the Pulse RepetitionFrequency)

Function Tree Node: \Boonton55xxx\Instrument Specific\Measurements\AutoMeasurements\Fetch Period

Declaration: Btn55xxx.h

Implementation: Btn55xxx.dll

Visual C++

ViStatus Btn55xxx_FetchPeriod(
ViSession Vi,
ViConstString Channel,
ViInt32* IsValid,
ViReal32* Val
);

Parameters

Vi

The ViSession handle that you obtain from the IviDriver_init or IviDriver_InitWithOptions function. The handle identifies a particular instrument session.

Channel

The physical or virtual repeated capability identifier. Pass VI_NULL or empty string if operation does not apply to a repeated capability.For valid values, see the Channel repeated capability.

IsValid

Measurement condition code.

Val

The interval between two successive pulses. (Reciprocal of the Pulse RepetitionFrequency)

Return Value

Success or failure code.

Requirements

Supported Models

All supported

Defined Values For Parameter IsValid

Name	Description
BTN55XXX_VAL_COND_CODE_MEASUREMENT_STOPPED	-1 Measurement is STOPPED. Value returned is not updated.
BTN55XXX_VAL_COND_CODE_ERROR	Error return. Measurement is not valid.
BTN55XXX_VAL_COND_CODE_UNDERRANGE	An Under-range condition exists.
BTN55XXX_VAL_COND_CODE_OVERRANGE	An Over-range condition exists.
BTN55XXX_VAL_COND_CODE_NORMAL	1 Normal return. No error.

See Also

Reference

AutoMeasurements

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