Specifies the size of the hysteresis window on either side of the trigger level.

Syntax

NIRFSA_ATTR_IQ_ANALOG_EDGE_REF_TRIGGER_HYSTERESIS

Numeric Value

Data Type

Access

Applies To

1150195

ViReal64

Read/Write

N/A

Remarks


The device triggers when the signal passes through the threshold you specify with the NIRFSA_ATTR_IQ_ANALOG_EDGE_REF_TRIGGER_LEVEL attribute, has the slope you specify with the NIRFSA_ATTR_IQ_ANALOG_EDGE_REF_TRIGGER_SLOPE attribute, and passes through the hysteresis window that you specify with this attribute. This attribute affects the device operation only when the NIRFSA_ATTR_REF_TRIGGER_TYPE attribute is set to NIRFSA_VAL_IQ_ANALOG_EDGE.

Valid Values: 0 to (Voltage Range/2 + Trigger Level) for Rising Slope. 0 to (Voltage Range/2 -Trigger Level) for Falling Slope. These values limit the hysteresis to the entire voltage range that is below the trigger level for Rising Slope or that is above the trigger level for Falling Slope.

Default Value: The default is calculated by the driver as (Range x 0.025).

Supported Devices: PXIe-5644/5645R