National Instruments NI PXI-5422 用户手册

3.

Call 

niFgen_SetAttributeViInt32

 to set the offset DAC value 

(niFgen property node: Calibration»Offset DAC Value) using the 
following parameters:

•

vi: The session handle returned from 

niFgen_InitExtCal

•

channelName: 

"0"

•

attributeID: 

NIFGEN_ATTR_OFFSET_DAC_VALUE

•

value: 

32000

4.

Repeat steps 5 through 8 for each of the 10 iterations listed in Table 8, 
changing the Analog Filter Enable, Pre-Amplifier Attenuation, and 
Current Configuration values for each iteration.

5.

Call 

niFgen_SetAttributeViBoolean

 to set the analog filter state 

(niFgen property node: Output Attributes»Analog Filter Enabled) 
using the following parameters:

•

vi: The session handle returned from 

niFgen_InitExtCal

•

channelName: 

"0"

•

attributeID: 

NIFGEN_ATTR_ANALOG_FILTER_ENABLED

•

value: The Analog Filter Enable value for the current iteration 
from Table 8.

Table 8.  Attributes and Values for Main Path Pre-Amplifier Gain 

1

VI_FALSE

0

NIFGEN_VAL_CAL_CONFIG_MAIN_PATH_FILTER_OFF_0DB

2

VI_FALSE

3

NIFGEN_VAL_CAL_CONFIG_MAIN_PATH_FILTER_OFF_3DB

3

VI_FALSE

6

NIFGEN_VAL_CAL_CONFIG_MAIN_PATH_FILTER_OFF_6DB

4

VI_FALSE

9

NIFGEN_VAL_CAL_CONFIG_MAIN_PATH_FILTER_OFF_9DB

5

VI_FALSE

12

NIFGEN_VAL_CAL_CONFIG_MAIN_PATH_FILTER_OFF_12DB

6

VI_TRUE

0

NIFGEN_VAL_CAL_CONFIG_MAIN_PATH_FILTER_ON_0DB

7

VI_TRUE

3

NIFGEN_VAL_CAL_CONFIG_MAIN_PATH_FILTER_ON_3DB

8

VI_TRUE

6

NIFGEN_VAL_CAL_CONFIG_MAIN_PATH_FILTER_ON_6DB

9

VI_TRUE

9

NIFGEN_VAL_CAL_CONFIG_MAIN_PATH_FILTER_ON_9DB

10

VI_TRUE

12

NIFGEN_VAL_CAL_CONFIG_MAIN_PATH_FILTER_ON_12DB