AN 307: Intel® FPGA Design Flow for Xilinx* Users

ID 683562
Date 3/20/2018

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Document Table of Contents place_design/route_design

Depending on the use mode, the Vivado* software provides different commands to place and route device resources into the FPGA device. In Project Mode, the launch_runs impl 1 executable performs place and route, and the equivalent Intel® Quartus® Prime Pro Edition executable is quartus_fit. In Non-Project Mode, the Vivado* software provides the place_design and route_design executables. The Intel® Quartus® Prime Pro Edition software allows you perform place and route stages separately in the quartus_fit executable through arguments.
The Intel® Quartus® Prime Pro Edition Fitter includes the following stages:
  • Plan—places all periphery elements (such as I/Os and PLLs) and determines a legal clock plan, without core placement or routing.
  • Early Place—places all core elements in an approximate location to facilitate design planning. Finalizes clock planning for Intel® Stratix® 10 designs.
  • Place—places all core elements in a legal location.
  • Route—creates all routing between the elements in the design.
  • Retime 12 —performs register retiming and moves existing registers into Hyper-Registers to increase performance by removing retiming restrictions and eliminating critical paths.
  • Finalize—for Intel® Arria® 10 and Intel® Cyclone® 10 GX devices, converts unnecessary tiles to High-Speed or Low-Power. For Intel® Stratix® 10 devices, performs post-route.
  • Fast Forward12—generates detailed reports that estimate performance gains achievable by making specific RTL modifications.

You can run each Fitter stage standalone by providing the appropriate argument to the quartus_fit executable. For more information, run quartus_fit --help.

The following example performs place-and-route by fitting the logic of the Intel® Quartus® Prime Pro Edition filtref project:

quartus_fit filtref

For command line help, type quartus_fit --help at the command prompt.

12 Retime and Fast-Forward Compilation available only for Intel® Stratix® 10 devices.