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

ID 683819
Date 10/13/2021
Public

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2.4.6.6. 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.

The 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 each segment of a buffer.

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