check_syntax - 2023.2 English

Vivado Design Suite Tcl Command Reference Guide (UG835)

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2023.2 English

Check HDL syntax in the supplied fileset or active fileset.


check_syntax [‑fileset <arg>] [‑return_string] [‑quiet] [‑verbose]


Name Description
[-fileset] Fileset to check for syntax
[-return_string] Return the syntax check messages as a string
[-quiet] Ignore command errors
[-verbose] Suspend message limits during command execution




Parses Verilog, SystemVerilog, and VHDL source files and generates syntax warnings and error messages for the design.

Tip: The syntax is also checked automatically as the file is edited in the AMD Vivado™ text editor, or when the file is saved.

This command returns warnings or errors related to the files it examines, or returns nothing if no problems are found.


-fileset <arg> - (Optional) Check the syntax of files in the specified fileset.

-return_string - (Optional) Directs the output to a Tcl string rather than to the standard output. The Tcl string can be captured by a variable definition and parsed or otherwise processed.

-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 example checks the syntax of files in the simulation fileset:

check_syntax -fileset sim_1

See Also