Remove DRC rule check objects from a user rule deck
Syntax
remove_drc_checks [‑of_objects <args>] [‑regexp] [‑nocase] [‑filter <arg>]
‑ruledeck <arg> [‑quiet] [‑verbose] [<patterns>]Returns
drc_check
Usage
| Name | Description |
|---|---|
[-of_objects]
|
Get 'rule_check' objects of these types: 'drc_ruledeck'. |
[-regexp]
|
Patterns are full regular expressions |
[-nocase]
|
Perform case-insensitive matching. (valid only when -regexp specified) |
[-filter]
|
Filter list with expression |
-ruledeck
|
DRC rule deck to modify |
[-quiet]
|
Ignore command errors |
[-verbose]
|
Suspend message limits during command execution |
[<patterns>]
|
Match the 'rule_check' objects against patterns. Default: * |
Description
Remove the specified design rule checks from a drc_ruledeck object.
A rule deck is a collection of design rule checks grouped for convenience, to be run with the report_drc command at different stages of the FPGA design flow, such as during I/O planning or placement. The tool comes with a set of factory defined rule decks, but you can also create new user-defined rule decks with the create_drc_ruledeck command.
Checks are added to a rule deck using the add_drc_checks command.
IS_ENABLED property that can be set to true or false using the set_property command. When a new rule check is created, the IS_ENABLED property is set to true as a default. Set the IS_ENABLED property to false to disable the rule check from being used by report_drc without having to remove the rule from the rule deck.
reset_drc_check command to restore the DRC rule, and its properties, to the default settings.This command returns the list of design rule checks that were removed from the specified rule deck.
Arguments
-of_objects <arg> - (Optional) Remove the rule checks of the specified drc_ruledeck object from the specified rule deck. This has the effect of removing all the rules in one rule deck from the target rule deck.
-of_objects option requires objects to be specified using the get_* commands, such as get_cells or get_pins, rather than specifying objects by name. In addition, -of_objects cannot be used with a search <pattern>.
-regexp - (Optional) Specifies that the search <patterns> are written as regular expressions. Both search <patterns> and -filter expressions must be written as regular expressions when this argument is used. Xilinx regular expression Tcl commands are always anchored to the start of the search string. You can add ".*" to the beginning or end of a search string to widen the search to include a substring. See http://perldoc.perl.org/perlre.html for help with regular expression syntax.
regexp is not anchored, and works as a standard Tcl command. For more information refer to http://www.tcl.tk/man/tcl8.5/TclCmd/regexp.htm.
-nocase - (Optional) Perform case-insensitive matching when a pattern has been specified. This argument applies to the use of -regexp only.
-filter <args> - (Optional) Filter the results list with the specified expression. The -filter argument filters the list of objects returned by the search pattern, based on specified property values. You can find the properties on an object with the report_property or list_property commands.
get_pins * -filter {DIRECTION == IN && NAME !~ "*RESET*"}
bool) type properties can be directly evaluated in filter expressions as true or not true: -filter {IS_PRIMITIVE && !IS_LOC_FIXED}
-ruledeck <arg> - (Required) The name of the rule deck to remove the specified design rule checks from.
-quiet - (Optional) Execute the command quietly, returning no messages from the command. The command also returns TCL_OK regardless of any errors encountered during execution.
-verbose - (Optional) Temporarily override any message limits and return all messages from this command.
set_msg_config command.Examples
remove_drc_checks -filter {GROUP == AVAL} -ruledeck my_rulesset_property IS_ENABLED FALSE [get_drc_checks RAMW-1]remove_drc_checks -ruledeck my_rules