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

ID 683552
Date 9/24/2018
Document Table of Contents

5.4.6. Specify Trigger Position

You can specify the amount of data the Logic Analyzer acquires before and after a trigger event. Positions for Runtime and Power-Up triggers are separate.

Signal Tap Logic Analyzer offers three pre-defined ratios of pre-trigger data to post-trigger data:

  • Pre—Saves signal activity that occurred after the trigger (12% pre-trigger, 88% post-trigger).
  • Center—Saves 50% pre-trigger and 50% post-trigger data.
  • Post—Saves signal activity that occurred before the trigger (88% pre-trigger, 12% post-trigger).

These pre-defined ratios apply to both non-segmented buffers and segmented buffers.