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NI PXI-5422 Calibration Procedure 38 ni.com
2. Call niFgen_SetAttributeViReal64 to set the post-amplifier
attenuation (niFgen property node: Calibration»Post-Amplifier
Attenuation) using the following parameters:
• vi: The session handle returned from
niFgen_InitExtCal
• channelName: "0"
• attributeID: NIFGEN_ATTR_POST_AMPLIFIER_ATTENUATION
• value: 0
3. 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
4. Repeat steps 5 through 8 for each of the 10 iterations listed in Table 7,
changing the Analog Filter Enable, Pre-Amplifier Attenuation, and
Current Configuration values for each iteration.
Table 7. Attributes and Values for Main Path Pre-Amplifier Offset
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