Intel® Quartus® Prime Pro Edition User Guide: Debug Tools

ID 683819
Date 10/02/2023

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Document Table of Contents State-Based Storage Qualifier Feature

Selecting a state-based storage qualifier type enables the start_store and stop_store actions. When you use these actions in conjunction with the expressions of the State-based trigger flow, you get maximum flexibility to control data written into the acquisition buffer.

Note: You can only apply the start_store and stop_store commands to a non-segmented buffer.

The start_store and stop_store commands are similar to the start and stop conditions of the start/stop storage qualifier mode. If you enable storage qualification, the Signal Tap logic analyzer doesn't write data into the acquisition buffer until the start_store command occurs. However, in the state-based storage qualifier type you must include a trigger command as part of the trigger flow description. This trigger command is necessary to complete the acquisition and display the results on the waveform display.