Events Summary

The following table describes the event types supported by NI digital waveform generator/analyzers. The Used In column indicates which types of operations can use an event type.

Event Name	Used In	Description
Data Active Event	Generation	The Data Active event indicates when the Pattern Generation Engine is generating data. If the Pattern Generation Engine is waiting for a trigger or is paused, the Data Active event is deasserted. When the Pattern Generation Engine is generating data, the Data Active event is asserted, synchronous with the data.
Marker Event	Generation	The Marker event is a general-purpose event that is configured within a generation script. The Marker event can be asserted synchronous to any even numbered sample within a waveform within a script. For example, the Marker event can be asserted when sample 432 of waveform A is generated. You can create multiple Marker events for use in your application. Note  When using DDR mode, marker positions will have a quantization twice that of SDR mode. Refer to your device specifications for more information about marker quantization.
Ready for Start Event	Acquisition, Generation	For both acquisition and generation, the Ready For Start event indicates that the NI digital waveform/generator analyzer is configured and ready to receive a Start trigger.
Ready for Advance Event	Acquisition	An event that indicates when the device enters its Wait for Advance Trigger state, which indicates that the acquisition of the previous record is complete.
End of Record Event	Acquisition	An event that indicates when the device enters its Record Complete state, which indicates that the current record has been acquired.
Sample Error Event	Hardware Comparison	An event that indicates when the device detects a sample where the actual response and the expected response do not match.