report_operating_conditions - 2020.2 English

Vivado Design Suite Tcl Command Reference Guide (UG835)
Document ID
UG835
Release Date
2020-11-18
Version
2020.2 English

Get operating conditions values for power estimation

Syntax

report_operating_conditions [‑voltage <args>] [‑voltage_range <args>]
    [‑grade] [‑process] [‑junction_temp] [‑ambient_temp] [‑thetaja]
    [‑thetasa] [‑airflow] [‑heatsink] [‑thetajb] [‑board] [‑board_temp]
    [‑board_layers] [‑design_power_budget] [‑all] [‑file <arg>]
    [‑return_string] [‑append] [‑supply_current_budget <args>] [‑quiet]
    [‑verbose]

Usage

Name Description
[-voltage] Gets voltage value. Supported voltage supplies vary by family.
[-voltage_range] Gets voltage range. Supported voltage supplies vary by family.
[-grade] Temperature grade. Supported values vary by family.
[-process] Gets process
[-junction_temp] Junction Temperature (C): auto|degC
[-ambient_temp] Ambient Temperature (C): default|degC
[-thetaja] ThetaJA (C/W): auto|degC/W
[-thetasa] Gets ThetaSA
[-airflow] Airflow (LFM): 0 to 750
[-heatsink] Gets dimensions of heatsink
[-thetajb] Gets ThetaJB
[-board] Board type: jedec, small, medium, large, custom
[-board_temp] Board Temperature degC
[-board_layers] Board layers: 4to7, 8to11, 12to15, 16+
[-design_power_budget] Design Power Budget (W)
[-all] Gets all operating conditions listed in this help message
[-file] Filename to output results to. (send output to console if -file is not used)
[-return_string] return operating conditions as string
[-append] append operating conditions to end of file
[-supply_current_budget] Reports a list of supply current budget 'name value' pairs. Supported voltage supplies vary by family.
[-quiet] Ignore command errors
[-verbose] Suspend message limits during command execution

Categories

Report

Description

Displays the real-world operating conditions that are used when performing analysis of the design. The reported values of operating conditions can be defined by the set_operating_conditions command.

The environmental operating conditions of the device are used for power analysis when running the report_power command, but are not used during timing analysis.

Note: By default the report is written to the Tcl console or STD output. However, the results can also be written to a file or returned as a string if desired.

Arguments

-voltage - (Optional) Report the list of voltage pairs. Supported voltage supplies vary by family.

-voltage_range - (Optional) Report the list of voltage ranges. Supported voltage supplies vary by family.

-grade - (Optional) Report the temperature grade of the target device

-process - (Optional) Report the manufacturing process characteristics to be assumed.

-junction_temp - (Optional) Report the device junction temperature used for modeling

-ambient_temp - (Optional) Reports the environment ambient temperature

-thetaja - (Optional) Report the Theta-JA thermal resistance used for modeling

-thetasa - (Optional) Report the Theta-SA thermal resistance used for modeling

-airflow - (Optional) Report the Linear Feet Per Minute (LFM) airflow to be used for modeling.

-heatsink - (Optional) Report the heatsink type to be used for modeling.

-thetajb - (Optional) Report the Theta-JB thermal resistance used for modeling

-board - (Optional) Report the board size to be used for modeling.

-board_temp - (Optional) Report the board temperature in degrees Centigrade to be used for modeling.

-board_layers - (Optional) Report the number of board layers to be used for modeling

-design_power_budget - (Optional) Report the design power budget in Watts. This value is used by the report_power command to report the difference between the calculated on-chip power and the design power budget.

-all - (Optional) Report the current values of all operating conditions. Use this to avoid having to report each condition separately.

-file <arg> - (Optional) Write the report into the specified file. This will overwrite an existing file of the same name, unless the -append option is also used.
Note: If the path is not specified as part of the file name, the file will be written into the current working directory, or the directory from which the tool was launched.
-append - (Optional) Append the output of the command to the specified file rather than overwriting it.
Note: The -append option can only be used with the -file option.
-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.
Note: This argument cannot be used with the -file option.

-supply_current_budget - (Optional) Report the list of supply name and current budget pairs. Supported voltage supplies vary by family.

-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.

Examples

Specify an industrial temperature grade device with an ambient temperature of 75 degrees C and then write those settings to a file on disk.

set_operating_conditions -grade industrial -junction_temp 75  
report_operating_conditions -grade -junction_temp -return_string -file \  
~/conditions.txt

Get voltage ranges of VCCINT and VCCAUX for the target device.

report_operating_conditions -voltage_range {VCCINT VCCAUX}

See Also