NIHSDIO_ATTR_DIGITAL_EDGE_START_TRIGGER_POSITION

NI Digital Waveform Generator/Analyzer

NIHSDIO_ATTR_DIGITAL_EDGE_START_TRIGGER_POSITION

Specific Attribute

Data
type
Access Applies to Coercion High-Level Functions
ViInt32 R/W N/A None None

Specifies the position where the Start trigger is asserted, relative to the Sample clock. Trigger voltages and positions are only relevant if the trigger source is a front panel connector.

Defined Values:

NIHSDIO_VAL_SAMPLE_CLOCK_RISING_EDGE (18) The trigger is received synchronously with the rising edge of the Sample clock.
NIHSDIO_VAL_SAMPLE_CLOCK_FALLING_EDGE (19) The trigger is received synchronously with the Sample clock falling edge.
NIHSDIO_VAL_DELAY_FROM_SAMPLE_CLOCK_RISING_EDGE (20) The trigger is received synchronously with the delay the Sample clock rising edge. You can use this value when the Sample clock rate is 25 MS/s or more. Specify the delay using NIHSDIO_ATTR_DATA_POSITION_DELAY. This choice has more jitter than the rising or falling edge values. Certain devices have Sample clock frequency limitations on when a custom delay can be used. Refer to the device sections for details.