NIHSDIO_ATTR_REF_TRIGGER_PRETRIGGER_SAMPLES

NI Digital Waveform Generator/Analyzer

NIHSDIO_ATTR_REF_TRIGGER_PRETRIGGER_SAMPLES

Specific Attribute

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

Description

Specifies the number of pretrigger samples to be acquired per record (for example, the samples acquired before the Reference trigger is received). The number of pretrigger samples cannot be greater than NIHSDIO_ATTR_SAMPLES_PER_RECORD.

This attribute is valid only for acquisition sessions.