Step 8: Using the create_waiver Command - 2021.1 English

Vivado Design Suite Tutorial: Design Analysis and Closure Techniques (UG938)
Document ID
UG938
Release Date
2021-07-14
Version
2021.1 English
Waivers added from the Report CDC dialog box are created using the create_waiver command. You can view these commands as follows.
Note: You can use the create_waiver command line command for CDC, DRC, and methodology waivers. The options differ slightly depending on whether you are creating a CDC, DRC, or methodology waiver. For more information, including information on the different options, see the create_waiver command in the Vivado Design Suite Tcl Command Reference Guide (UG835).
  1. Open the Vivado journal file (vivado.jou) to see the three distinct create_waiver commands issued by the Vivado IDE.
  2. Scroll through the history of the Tcl Console to see the same three create_waiver commands.
    Tip: The -from and -to options are used to specify the startpoints and endpoints. When a waiver is set from the Report CDC dialog box, both -from and -to are specified to match the exact violation. However, you can specify a CDC waiver using only the -from option or only the -to option, but more paths might be waived than expected.