Prior to Vivado 2021.1 IDF+DFX DRCs are
disabled by default. To enable the IDF DRCs, run the following command from the Tcl
console:
set_param hd.enableIDFDRC 1
This parameter information is not stored in the database and must be
re-enabled for every Vivado session. The
parameter is most easily set in
Vivado_init.tcl
which automatically sets the parameter
for each of the Vivado sessions. From Vivado 2021.1 onwards, to enable the IDF DRCs there
is no need to set hd.enableIDFDRC
param. IDF DRCs
are enabled automatically by the tool when the tool detects that HD.ISOLATED
property is set to true.