Intel® Quartus® Prime Pro Edition User Guide: Scripting

ID 683432
Date 10/04/2021
Public

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3.1.27.22. set_clock_uncertainty (::quartus::sdc)

The following table displays information for the set_clock_uncertainty Tcl command:

Tcl Package and Version

Belongs to ::quartus::sdc

Syntax set_clock_uncertainty [-h | -help] [-long_help] [-add] [-enable_same_physical_edge] [-fall_from <fall_from_clock> ] [-fall_to <fall_to_clock> ] [-from <from_clock> ] [-hold] [-rise_from <rise_from_clock> ] [-rise_to <rise_to_clock> ] [-setup] [-to <to_clock> ] <uncertainty>
Arguments -h | -help Short help
-long_help Long help with examples and possible return values
-add Specifies that this assignment is an addition to the clock uncertainty derived by derive_clock_uncertainty call
-enable_same_physical_edge Enable setting uncertainty value for same physical clock edge
-fall_from <fall_from_clock> Valid destinations (string patterns are matched using Tcl string matching)
-fall_to <fall_to_clock> Valid destinations (string patterns are matched using Tcl string matching)
-from <from_clock> Valid destinations (string patterns are matched using Tcl string matching)
-hold Only apply the uncertainty value to hold and removal checks
-rise_from <rise_from_clock> Valid destinations (string patterns are matched using Tcl string matching)
-rise_to <rise_to_clock> Valid destinations (string patterns are matched using Tcl string matching)
-setup Only apply the uncertainty value to setup and recovery checks
-to <to_clock> Valid destina