create_hw_sio_link - 2024.1 English

Vivado Design Suite Tcl Command Reference Guide (UG835)

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2024.1 English

Create a new link between hardware RX and TX endpoints. There must be at least one hardware TX or RX endpoint specified. If one is missing, the endpoint will be treated as Unknown. The unknown endpoint can be renamed in a link property.


create_hw_sio_link [‑description <arg>] [‑quiet] [‑verbose] [<hw_sio_rx>]


The new hardware SIO link.


Name Description
[-description] Description of link. Default: Link object name
[-quiet] Ignore command errors
[-verbose] Suspend message limits during command execution
[<hw_sio_rx>] RX endpoint. Default: None
[<hw_sio_tx>] TX endpoint. Default: None




Define a communication links between transmitter (TX) and receiver (RX) objects on the GTs of the IBERT debug core implemented on the current hardware device.

Vivado™ Serial I/O analyzer is a link-based analyzer, which lets you link between any transmitter and receiver within the IBERT design. The links define the communication paths and protocols between transmitters and receivers of the GigaBit transceivers on the device. You can configure the links by using the set_property command to specify property values on the link object. Refer to the Vivado Design Suite User Guide: Programming and Debugging (UG908) for more information on configuring links.

This command returns the created hw_sio_link object, or returns an error if it fails.


-description <arg> - (Optional) Provide a brief description that acts as a label for the link. This description is stored on the DESCRIPTION property of the hw_sio_link object.

Tip: The NAME property of the hw_sio_link objects is a full path designation of the link from the transmitter (TX) to receiver (RX) GTs on the IBERT debug core, including the hw_server, hw_target, hw_device, and hw_sio_ibert objects. Any description you provide here can be used as a shortcut to help locate the link.
-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.

<hw_sio_rx> - (Optional) Specify the receiver element of the GT to include in the communication link. The receiver must be specified as an object as returned by the get_hw_rxs command.

<hw_sio_tx> - (Optional) Specify the transmitter element of the GT to include in the communication link. The transmitter must be specified as an object as returned by the get_hw_txs command.

Important: Although the receiver and transmitter are marked as optional, at least one must be provided to create a link. A link with only a transmitter or receiver is considered an open-ended link.


The following example creates a communication link between the specifed RX and TX

create_hw_sio_link -description Link_12  [get_hw_sio_txs *MGT_X0Y12*] \
[get_hw_sio_rxs *MGT_X0Y12*]
Tip: In the example above the TX precedes the RX. The order of these objects is not significant.