dni::set_operating_conditions (::quartus::dni_sdc)

The following table displays information for the dni::set_operating_conditions Tcl command:

Tcl Package and Version

Belongs to ::quartus::dni_sdc 1.5

Syntax dni::set_operating_conditions [-h | -help] [-long_help] [-analysis_type <bc_wc|on_chip_variation|single> ] [-condition <condition> ] [-force_dat] [-grade <c|i|m|e|a> ] [-library <lib> ] [-max <max_condition> ] [-max_library <max_lib> ] [-max_phys <max_proc> ] [-min <min_condition> ] [-min_library <min_lib> ] [-min_phys <min_proc> ] [-model <fast|slow> ] [-object_list <object_list> ] [-speed <speed> ] [-temperature <value_in_C> ] [-voltage <value_in_mV> ] [ <list_of_operating_conditions> ]
Arguments -h | -help Short help
-long_help Long help with examples and possible return values
-analysis_type <bc_wc|on_chip_variation|single> Specifies how to use the operating conditions
-condition <condition> Specifies conditions that define environmental characteristics to use during maximum and minimum delay analysis
-force_dat Option to force delay annotation (only done when selecting an unanalyzed corner)
-grade <c|i|m|e|a> Option to specify temperature grade
-library <lib> Specifies the library containing definitions of the operating conditions for both maximum and minimum delay analysis
-max <max_condition> Specifies the operating condition to use for maximum delay analysis
-max_library <max_lib> Specifies the library containing definitions of the operating conditions for maximum delay analysis
-max_phys <max_proc> Specifies the name of the process resource to search for the resistance and capacitance values for maximum delay analysis
-min <min_condition> Specifies the operating condition to use for minimum delay analysis
-min_library <min_lib> Specifies the library containing definitions of the operating conditions for minimum delay analysis
-min_phys <min_proc> Specifies the name of the process resource to search for the resistance and capacitance values for minimum delay analysis
-model <fast|slow> Option to specify timing model
-object_list <object_list> Specifies the cells or ports on which to set operating conditions
-speed <speed> Speed grade
-temperature <value_in_C> Operating temperature
-voltage <value_in_mV> Operating voltage
<list_of_operating_conditions> list or collection of Operating conditions Tcl objects or names
Description 
This command is not supported by SDC on RTL yet.

Use this command to specify operating conditions different from the
initial conditions used to create the timing netlist. When a timing
model is not specified, the slow model is used.

Voltage and temperature options must be used together. These two
options are not available for all devices. The
get_available_operating_conditions command returns the list of
available operating conditions for your device.

Use the -speed option to analyze the design at a different speed grade
of the selected device.

Use the -grade option to analyze the design at a different temperature
grade. This option is provided to support what-if analysis and is not
recommended for final sign-off analysis.

By default, delay annotation is skipped if previously performed. Use
-force_dat to rerun delay annotation.

Note -analysis_type, -min, -max, -min_library, -max_library,
-min_phys, -max_phys, -library, -object_list and condition options are
not supported yet,
Example Usage 
#do report timing for different operating conditions one by one
foreach_in_collection op [get_available_operating_conditions] {
	set_operating_conditions $op
	update_timing_netlist
	report_timing
}

#set aggregated report timing for all operating conditions when corner aggregation is enabled
set_operating_conditions [get_available_operating_conditions]
report_timing

#manually set operating conditions
set_operating_conditions -model fast -temperature 85 -voltage 1200
update_timing_netlist

#change device speed grade and set operating conditions
set_operating_conditions -speed 3 -model slow -temperature 0 -voltage 1100
update_timing_netlist
Return Value Code Name Code String Return
TCL_OK 0 INFO: Operation successful