Step 2: Build the In-Memory Design - 2021.2 English

Vivado Design Suite User Guide: Implementation (UG904)

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2021.2 English

The Vivado tools build an in-memory view of the design using link_design. The link_design command combines the netlist based source files read into the tools with the Xilinx part information, to create a design database in memory.

There are two important link_design options:

  • The -part option specifies the target device.
  • The -top option specifies the top design for implementation. If the top-level netlist is EDIF and the -top option is not specified, the Vivado tools will use the top design embedded in the EDIF netlist. If the top-level netlist is not EDIF but structural Verilog, the -top option is required. The -top option can also be used to specify a submodule as the top, for example when running the Module Analysis flow to estimate performance and utilization.

All actions taken in Non-Project Mode are directed at the in-memory database within the Vivado tools.

The in-memory design resides in the Vivado IDE for interaction with the design data in a graphical form. tools, whether running in batch mode, Tcl shell mode for interactive Tcl commands, or in the