National Instruments NI PXI-5422 Benutzerhandbuch
NI PXI-5422 Calibration Procedure
42
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3.
Call
niFgen_SetAttributeViInt32
to set the offset DAC value
(niFgen property node: Calibration»Offset DAC Value) using the
following parameters:
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.
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:
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.
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