Intel® Quartus® Prime Pro Edition User Guide: Design Optimization

ID 683641
Date 1/07/2022

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8.6. Interactive ECO Fitting

The quartus_fit executable supports ECO changes in an interactive shell through quartus_fit -s.

In an interactive context, the ECO Fitter legalizes the changes, when appropriate. For example, for make_connection changes immediately after node creation, the Fitter does not attempt to route the connections immediately; rather, the Fitter waits until after the placement of the node prior to routing.