Get a list of pins
Syntax
get_bd_pins [‑regexp] [‑hierarchical] [‑filter <arg>] [‑of_objects <args>]
[‑quiet] [‑verbose] [<patterns>]
Returns
List of pin objects, "" if failed.
Usage
Name | Description |
---|---|
[-regexp]
|
Patterns are full regular expressions |
[-hierarchical]
|
Hierarchical cells included |
[-filter]
|
Filter list with expression |
[-of_objects]
|
One or a list of cells, nets or interface pins objects. List must be of one object type. |
[-quiet]
|
Ignore command errors |
[-verbose]
|
Suspend message limits during command execution |
[<patterns>]
|
Match engine names against patterns Default: * |
Categories
Description
Gets a list of pin objects on the current IP subsystem design that match a specified search pattern. The default command gets a list of all pins in the subsystem design.
The external connections in an IP integrator cell, or hierarchical module, are pins and interface pins. The external connections in an IP subsystem design are ports, or interface ports. Use the get_bd_ports
and get_bd_intf_ports
commands to select the port objects.
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
-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.
-hierarchical
- (Optional) Get pins from all levels of the IP integrator subsystem design hierarchy. Without this argument, the command will only get pins from the top of the subsystem design, or from the current subsystem instance. When using -hierarchical
, the search pattern should not contain a hierarchy separator because the search pattern is applied at each level of the hierarchy, not to the full hierarchical name. For instance, searching for /bridge_1/* searches each level of the hierarchy for pins with /bridge_1/ in the name. This may not return the intended results.
-regexpr
, the specified search string is matched against the full hierarchical name, and the U1/* search pattern will work as intended.
-filter
<args> - (Optional) Filter the results list with the specified expression. The -filter
argument filters the list of objects returned by get_bd_pins based on property values on the block design pins. You can find the properties on an object with the report_property
or list_property
commands. In the case of the block design pins object, "DIR" and "TYPE" are some of the properties that can be used to filter results.
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}
-of_objects <arg>
- (Optional) Get the pins connected to the specified IP subsystem interface pins, bd_intf_pin, bd_ cell, or bd_net.
-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.
-verbose
- (Optional) Temporarily override any message limits and return all messages from this command.
set_msg_config
command.<patterns> - (Optional) Match IP integrator subsystem pins against the specified patterns. You must specify the search pattern using the name convention of <bd_cell_name> /<bd_pin_name>. In this case, using the wildcard '*/*' would return all of the bd_pin objects on all of the bd_cells in the diagram.
Examples
The following example gets a list of pins attached to the specified cell:
get_bd_pins -of [get_bd_cells new_vidOut_1]
The following example gets a list of all pins, throughout the hierarchy of the IP integrator subsystem design, which match the specified name pattern:
get_bd_pins -hierarchical LMB*
The following example gets a list of pins attached to the specified subsystem net:
get_bd_pins -of [get_bd_nets vidout_1_vtg_ce]