get_drc_ruledecks - 2020.2 English

Vivado Design Suite Tcl Command Reference Guide (UG835)

Document ID
UG835
Release Date
2020-11-18
Version
2020.2 English

Get a list of DRC rule deck objects

Syntax

get_drc_ruledecks [‑of_objects <args>] [‑regexp] [‑nocase] [‑filter <arg>]
    [‑quiet] [‑verbose] [<patterns>]

Returns

drc_ruledeck

Usage

Name Description
[-of_objects] Get 'drc_ruledeck' objects of these types: 'rule_check'.
[-regexp] Patterns are full regular expressions
[-nocase] Perform case-insensitive matching. (valid only when -regexp specified)
[-filter] Filter list with expression
[-quiet] Ignore command errors
[-verbose] Suspend message limits during command execution
[<patterns>] Match the 'drc_ruledeck' objects against patterns. Default: *

Categories

DRC, Object

Description

Gets a list of currently defined rule decks for use with the report_drc command.

A rule deck is a collection of design rule checks grouped for convenience, to be run 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, and add checks to the rule deck using the add_drc_checks command.

Note: To improve memory and performance, the get_* commands return a container list of a single type of objects (e.g. cells, nets, pins, or ports). You can add new objects to the list (using lappend for instance), but you can only add the same type of object that is currently in the list. Adding a different type of object, or string, to the list is not permitted and will result in a Tcl error.

Arguments

-of_objects <args> - (Optional) Get the DRC ruledeck object of the associated rule check objects.

-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.
Note: The Tcl built-in command 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 get_drc_ruledecks based on property values on the rule decks. You can find the properties on an object with the report_property or list_property commands.

The filter search pattern should be quoted to avoid having to escape special characters that may be found in net, pin, or cell names, or other properties. String matching is case-sensitive and is always anchored to the start and to the end of the search string. The wildcard “*” character can be used at the beginning or at the end of a search string to widen the search to include a substring of the property value.
Note: The filter returns an object if a specified property exists on the object, and the specified pattern matches the property value on the object. In the case of the "*" wildcard character, this will match a property with a defined value of "".
For string comparison, the specific operators that can be used in filter expressions are "equal" (==), "not-equal" (!=), "match" (=~), and "not-match" (!~). Numeric comparison operators <, >, <=, and >= can also be used. Multiple filter expressions can be joined by AND and OR (&& and ||). The following gets input pins that do NOT contain the “RESET” substring within their name:
get_pins * -filter {DIRECTION == IN && NAME !~ "*RESET*"}
Boolean (bool) type properties can be directly evaluated in filter expressions as true or not true:
-filter {IS_PRIMITIVE && !IS_LOC_FIXED}
-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.
Note: Any errors encountered on the command-line, while launching the command, will be returned. Only errors occurring inside the command will be trapped.
-verbose - (Optional) Temporarily override any message limits and return all messages from this command.
Note: Message limits can be defined with the set_msg_config command.
<patterns> - (Optional) Match rule decks against the specified patterns. The default pattern is the wildcard '*' which gets all rule decks. More than one pattern can be specified to find multiple rule decks based on different search criteria.
Note: You must enclose multiple search patterns in braces, {}, or quotes, "", to present the list as a single element.

Examples

The following example gets a list of rule decks defined in the current project:
get_drc_ruledecks
The following example lists each of the checks associated with the placer_checks rule deck on a separate line:
foreach rule [get_drc_checks -of_objects \  
   [get_drc_ruledecks placer_checks]] {puts $rule}