niHSDIO_ConfigureDataInterpretation
Specific Function
C Function Prototype
ViStatus niHSDIO_ConfigureDataInterpretation (ViSession vi, ViConstString channelList, ViInt32 dataInterpretation);
Purpose
Selects between high/low data or valid/invalid data interpretation during a static or dynamic acquisition operation.
Select NIHSDIO_VAL_HIGH_OR_LOW to get logic high or logic low values. Select NIHSDIO_VAL_VALID_OR_INVALID to determine if the signal is within the specified voltage range (above NIHSDIO_ATTR_DATA_VOLTAGE_LOW_LEVEL but below NIHSDIO_ATTR_DATA_VOLTAGE_HIGH_LEVEL) or outside the range (below NIHSDIO_ATTR_DATA_VOLTAGE_LOW_LEVEL or above NIHSDIO_ATTR_DATA_VOLTAGE_HIGH_LEVEL).
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Note NI 654x/656x devices only support the high/low mode of data interpretation. NI-HSDIO returns an error if you select valid/invalid mode for an acquisition with these devices. |
Parameters
| Name | Type | Description |
|---|---|---|
| vi | ViSession | This handle identifies your instrument session. vi was obtained from niHSDIO_InitAcquisitionSession. |
| channelList | ViConstString | Identifies channels to apply settings. Use "" or VI_NULL to specify all channels. |
| dataInterpretation | ViInt32 | Selects the data interpretation mode. Defined Values NIHSDIO_VAL_HIGH_OR_LOW (3)—Data read represents logical values (logic high or low level) NIHSDIO_VAL_VALID_OR_INVALID (4)—Data read represents whether channel data is within the specified voltage range. Default Value: NIHSDIO_VAL_HIGH_OR_LOW |