Directives - 2023.2 English

UltraFast Design Methodology Guide for FPGAs and SoCs (UG949)

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2023.2 English

Directives provide different modes of behavior for the following implementation commands:

  • opt_design
  • place_design
  • phys_opt_design
  • route_design

Use the default directive initially. Use other directives when the design nears completion to explore the solution space for a design. You can specify only one directive at a time. For more information on directives, see the Vivado Design Suite User Guide: Implementation (UG904).