set_propagated_clock - 2023.1 English

Vivado Design Suite Tcl Command Reference Guide (UG835)

Document ID
UG835
Release Date
2023-05-16
Version
2023.1 English

Specify propagated clock latency

Syntax

set_propagated_clock [‑quiet] [‑verbose] <objects>

Usage

Name Description
[-quiet] Ignore command errors
[-verbose] Suspend message limits during command execution
<objects> List of clocks, ports, or pins

Categories

SDC, XDC

Description

Propagates clock latency throughout a clock network, resulting in more accurate skew and timing results throughout the clock network.

Note: This command operates silently and does not return direct feedback of its operation.

Arguments

-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.

<objects> - (Required) A list of the clock objects to force propagation on.

Examples

This example specifies that the primary system clock from the top-level should be propagated:

set_propagated_clock [get_clocks top/clk]

This example specifies that all clocks from "sublevel1" should be propagated:

set_propagated_clock [get_clocks sublevel1/*]