Xilinx 8.2i manual Set set analysis properties, Setconstraint set constraint for custom analysis

Models: 8.2i

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Tcl Commands for General Usage

analysis_name specifies the name of the analysis previously created with the timing_analysis new command.

new_file_name specifies the file name for the analysis report.

Example:

% timing_analysis saveas stopwatch_timing stopwatch_report

 

 

Description:

In this example, the timing_analysis saveas command is used to save

 

the stopwatch_timing analysis to a report file named

 

stopwatch_report.

Tcl Return:

Name of the report file.

set (set analysis properties)

The timing_analysis set command is used to set properties and values for an analysis.

%timing_analysis set <analysis_name> <property> <value>

timing_analysis is the name of the Xilinx Tcl command.

set is the name of the timing_analysis subcommand.

analysis_name specifies the name of the analysis previously created with the timing_analysis new command.

property specifies the analysis property that you wish to set the value for. See Table 3-5for a list of analysis properties.

value specifies the value for the specified property.

Example:

% timing_analysis set stopwatch_timing

 

analysis_speed -11

 

 

Description:

In this example, the timing_analysis set command is used to set the

 

value of the analysis_speed property to -11, for the stopwatch_timing

 

analysis.

Tcl Return:

Previous value of the specified property.

set_constraint (set constraint for custom analysis)

The timing_analysis set_constraint command is used to set constraints for a custom analysis.

%timing_analysis set_constraint <analysis_name> <constraint_type> <constraint_details>

timing_analysis is the name of the Xilinx Tcl command.

set_constraint is the name of the timing_analysis subcommand.

analysis_name specifies the name of the analysis previously created with the timing_analysis new command.

constraint_type specifies the type of constraint to set for the custom analysis. There are four constraint types:

maxdelay—pad-to-pad maximum delay

period—period constraint on clock pad

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Xilinx 8.2i manual Set set analysis properties, Setconstraint set constraint for custom analysis, Analysisspeed