open_io_design - 2024.1 English

Vivado Design Suite Tcl Command Reference Guide (UG835)

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2024.1 English

Open an IO design


open_io_design [‑name <arg>] [‑part <arg>] [‑constrset <arg>] [‑quiet]


Design object


Name Description
[-name] Design name
[-part] Target part
[-constrset] Constraint fileset to use
[-quiet] Ignore command errors
[-verbose] Suspend message limits during command execution




Opens a new or existing I/O Pin Planning design.

Note: The design_mode property for the current source fileset must be defined as PinPlanning in order to open an I/O design. If not, you will get the following error:
ERROR: The design mode of 'sources_1' must be PinPlanning


-name <arg> - (Optional) The name of a new or existing I/O Pin Planning design.

-part <arg> - (Optional) The device to use when creating a new design. If the part is not specified the default part will be used.

-constrset <arg> - (Optional) The name of the constraint fileset to use when opening an I/O design.

Note: The -constrset argument must refer to a constraint fileset that exists. It cannot be used to create a new fileset. Use create_fileset for that purpose.
-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.


The following creates a new I/O design called myIO:

open_io_design -name myIO
Note: The default source set, constraint set, and part will be used in this case.

The following example opens an existing I/O design called myIO, and specifies the constraint set to be used:

open_io_design -name myIO -constrset topCon

See Also