Agilent Technologies VXI E1439 - Manual (Page 137)

127
Agilent E1439 Programmer's Reference
Functions listed alphabetically
age1439_frequency_center_raw_compute
Computes the raw center frequency parameters
VXIplug&play Syntax
#include "age1439".h
ViStatus age1439_frequency_center_raw_compute(ViSession id, ViReal64 center, ViPInt32
phasePtr, ViPInt32 interpolatePtr);
Description
This function quickly computes the parameter values which you may use with age1439_
frequency_center_raw . This function also allows you to compute many values in advance to
facilitate quick frequency hopping.
Parameters
id is the VXI instrument session pointer returned by the age1439_init function.
center provides the center frequency normalized to clock fs.
phasePtr points to the computed value of phase.
interpolatePtr points to the computed value of interpolate.
Example
Here is a Visual Basic snippet showing how to use this function:
Call age1439_frequency_center_raw_compute(lngId, dblCenterFreq, lngPh, lngIn)
Call age1439_frequency_center_raw(lngId, lngPh, lngIn)
Return Value
AGE1439_SUCCESS indicates that a function was successful.
Values other than AGE1439_SUCCESS indicate an error condition or other important status
condition. To determine the error message, pass the return value to
“age1439_error_message” on
page 102 .
See Also
“age1439_init” on page 132 , “age1439_frequency_setup” on page 128 , “age1439_frequency_
center_raw” on page 125 , “age1439_combo_setup” on page 87