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Call 

niFgen_InitExtCal

 (niFgen Init Ext Cal VI) to open an NI-FGEN 

external calibration session using the following parameters:

•

resourceName: The name of the device you want to calibrate. 
This name can be found under Devices and Interfaces in MAX.

•

password: The password required to open an external calibration 
session. If this password has not been changed since manufacturing, 
the password is 

NI

.

•

vi: A pointer to a ViSession. The variable passed by reference through 
this parameter receives the value that identifies the external calibration 
session created by this function. This value acts as the session handle 
and is passed as the first parameter to all subsequent NI-FGEN 
functions.

The analog output adjustment procedure has several sub-procedures that 
adjust the following:

•

Main path pre-amplifier offset

•

Main path pre-amplifier gain

•

Main path post-amplifier gain and offset

•

Direct path gain

In each of these sub-procedures, you put the device in several 
configurations and take several output measurements. You then pass 
these measurements to NI-FGEN, which determines the calibration 
constants for the device.

1.

Call 

niFgen_InitializeAnalogOutputCalibration

 (niFgen 

Initialize Analog Output Calibration VI) using the following 
parameter:

•

vi: The session handle returned from 

niFgen_InitExtCal

 

2.

Call 

niFgen_WriteBinary16AnalogStaticValue

 (niFgen Write 

Binary 16 Analog Static Value VI) to set the main DAC value using 
the following parameters:

•

vi: The session handle returned from 

niFgen_InitExtCal

 

•

channelName: 

"0"

•

value: 

0