Quartus® Prime Standard Edition User Guide: Design Compilation

ID 683283
Date 10/22/2021
Document Table of Contents

1.10.5. Signal Probe Pins and Engineering Change Orders

ECO and Signal Probe changes are performed only during ECO and Signal Probe compilations. Other compilation flows do not preserve these netlist changes.

When incremental compilation is turned on and your design contains one or more design partitions, partition boundaries are ignored while making ECO changes and Signal Probe signal settings. However, the presence of ECO and/or Signal Probe changes does not affect partition boundaries for incremental compilation. During subsequent compilations, ECO and Signal Probe changes are not preserved regardless of the Netlist Type or Fitter Preservation Level settings. To recover ECO changes and Signal Probe signals, you must use the Change Manager to re-apply the ECOs after compilation.

For  partitions developed independently in separate Quartus® Prime projects, the exported netlist includes all currently saved ECO changes and Signal Probe signals. If you make any ECO or Signal Probe changes that affect the interface to the lower-level partition, the software issues a warning message during the export process that this netlist does not work in the top-level design without modifying the top-level HDL code to reflect the lower-level change. After integrating the .qxp partition into the top-level design, the ECO changes will not appear in the Change Manager.