DRCs are just like other objects in Tcl and their properties can be changed. Use the following command to list the properties of a DRC Object.
Vivado% report_property [get_drc_checks RAMW-1]
Property Type Read-only Visible Value
ARCHITECTURES string* true true
CLASS string true true drc_check
DESCRIPTION string true true Block RAM Data Width Check
GROUP string true true RAMW
HIERNAME string true true RAMB Checks
IS_ENABLED bool false true 1
IS_USER_DEFINED bool true true 1
MESSAGE string true true
MSG_ID int true true 1
NAME string true true RAMW-1
SEVERITY enum false true AdvisoryNote: There are two properties of the RAMW-1 DRC check that you can modify. Those are the IS_ENABLED property and the SEVERITY property. Change the values of these properties on the DRC Check object by using the
set_property command, just like any other object.To disable the RAMW-1 DRC check, issue the Tcl command:
Vivado% set_property IS_ENABLED false [get_drc_checks RAMW-1]To increase the severity of the RAMW-1 DRC Check, issue the Tcl command:
Vivado% set_property SEVERITY {Critical Warning} [get_drc_checks RAMW-1]These properties can also be changed on built-in DRC rules. In order to reset the built-in DRC rules to factor defaults, use the following Tcl command:
Vivado% reset_drc_check [get_drc_checks]CAUTION:
Although Vivado allows you to disable and downgrade the severity of the built-in
DRC Objects, this practice is highly discouraged as it can cause unpredictable results
and could potentially cause permanent damage to the device.
For more information on Running DRCs, see the Vivado Design Suite User Guide: System-Level Design Entry (UG895).