Prior to AMD Vivado™
version 2021.1, VIV 2.0 is
disabled by default. The steps below demonstrate on how to enable VIV2.0. But from Vivado version 2021.1 onwards, VIV gets enabled
automatically when the tool detects HD.ISOLATED property
is set to True in the Vivado design and no additional steps are needed to enable
VIV.
For Vivado versions 2020.2 and earlier users can
follow the below step to enable VIV explicitly for their IDF designs by setting the
parameter hd.enableIDFDRC to True.
- Go to the Vivado Tcl Console, and enter the following command at the lower portion
of the window (see the following figure):
set_param hd.enableIDFDRC true
The hd.enableIDFDRC parameter value is not
saved to the project or DCP. Hence, user needs to set the parameter whenever they launch
Vivado session to enable VIV DRCs, or alternately, add the set param command in the
Vivado_init.tcl file to enable IDF DRCs
permanently. This is helpful for customers always involved in IDF designs. The init file
is under the ~/.Xilinx/Vivado/2018.2 directory. If
you do not see the file under that directory, you need to create the file and add the
following command to the init file:
set_param hd.enableIDFDRC true