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NI PXI-5422 Calibration Procedure 42 ni.com
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
Iteration
Analog Filter
Enable
Pre-Amplifier
Attenuation
Current Configuration
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