hsi::get_intf_nets - 2021.2 English

Vitis Unified Software Platform Documentation: Embedded Software Development (UG1400)

Document ID
UG1400
ft:locale
English (United States)
Release Date
2021-12-15
Version
2021.2 English

Description

Get a list of interface nets.

Syntax

get_intf_nets [-regexp] [-filter <arg>] [-boundary_type <arg>] [-hierarchical] [-of_objects <args>] [-quiet] [-verbose] [<patterns>...] 

Returns

Interface Net objects. Returns nothing if the command fails.

Usage

Name Description
[-regexp] Patterns are full regular expressions
[-filter] Filter list with expression
[-boundary_type] Used when source object is on a hierarchical block's pin. Valid values are 'upper', 'lower', or 'both'. If 'lower' boundary, searches from the lower level of hierarchy onwards. This option is only valid for connected_to relations. Default: upper
[-hierarchical] Get interface nets from all levels of hierarchical cells
[-of_objects] Get 'intf_net' objects of these types: 'hw_design cell bus_intf'.
[-quiet] Ignore command errors
[-verbose] Suspend message limits during command execution
[<patterns>] Match cell names against patterns Default: *

Categories

Hardware

Description

Gets a list of interface nets in the current hardware design that match a specified search pattern. The default command gets a list of all interface nets in the subsystem design.

Arguments

-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 this web page 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 this web page.

-filter <args> – (optional) Filter the results list with the specified expression. The -filter argument filters the list of objects returned based on property values on the objects. You can find the properties on an object with the report_property or list_property commands.

Quote the filter search pattern to avoid having to escape special characters that might 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 matches 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 ||).

For hardware design nets you can use the "NAME" property to filter results.

-hierarchical - (optional) Get interface nets from all levels of hierarchical cells.

-boundary_type - (optional) Used when source object is on a hierarchical block's pin. Valid values are 'upper', 'lower', or 'both'. If 'lower' boundary, searches from the lower level of hierarchy onwards. This option is only valid for connected_to relations.

-of_objects <args> - (optional) Get a list of the nets connected to the specified IP integrator subsystem cell, pin, or port objects.
Note: The -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.
-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 are returned. Only errors occurring inside the command are 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 hardware design interface nets against the specified patterns. The default pattern is the wildcard `*` which returns a list of all interface nets in the current IP integrator subsystem design. More than one pattern can be specified to find multiple nets based on different search criteria.

Note: You must enclose multiple search patterns in braces {} to present the list as a single element.

Examples

The following example gets the interface net attached to the specified pin of an hardware design, and returns the net:

hsi::get_intf_nets -of_objects [get_pins aclk]
Note: If there are no interface nets matching the pattern you will get a warning.