Intel® Quartus® Prime Pro Edition User Guide: Scripting

ID 683432
Date 10/04/2021

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Document Table of Contents set_disable_timing (::quartus::sdc)

The following table displays information for the set_disable_timing Tcl command:

Tcl Package and Version

Belongs to ::quartus::sdc

Syntax set_disable_timing [-h | -help] [-long_help] [-from <name> ] [-to <name> ] <cells>
Arguments -h | -help Short help
-long_help Long help with examples and possible return values
-from <name> Valid source pin suffix
-to <name> Valid destination pin suffix
<cells> List of cells

Disables a timing edge (arc) from inside a given cell or cells. Disabling a timing edge prevents timing analysis through that edge. If either -from or -to (or both) are unspecified, the missing value or values are replaced by a "*" character. The values of the -from and -to are valid pin suffixes. The values used must follow standard Tcl or Timing Analyzer-extension substitution rules. See the help for use_timing_analyzer_style_escaping for details.

Example Usage
set_disable_timing -from datain -to combout A|B
set_disable_timing -from carryin *
Return Value Code Name Code String Return
TCL_OK 0 INFO: Operation successful
TCL_ERROR 1 ERROR: Timing netlist does not exist. Use create_timing_netlist to create a timing netlist.