Timinganalysis generate timing analysis reports

Chapter 3: Tcl

speed_grade specifies the speed for the target device of the current ISE project.

Example:	% project set speed -7

Description:	In this example, the device speed for the current project is set to -7.

Tcl Return:	The previous value. In this example, the previous speed grade
	setting is returned.

set top (set the top-level module/entity)

The project set top command specifies the top-level module or entity in the design hierarchy. To use this command, you must first add the module or entity to your project with the xfile add command.

% project set top <module_name>

project is the name of the Xilinx Tcl command.

set top is the name of the project subcommand.

module_name specifies the name for the top-level module for Verilog and EDIF-based designs.

For VHDL designs, you must specify the architecture name and the entity name using the following syntax:

% project set top <architecture_name> [entity_name]

Example:	% project set top pong_top

Description:	In this Verilog example, the project set top command is used to set
	pong_top as the top-level module in the design hierarchy.

Tcl Return:

The name of the previous top-level module.

timing_analysis (generate timing analysis reports)

The timing_analysis command generates static timing analysis reports for an implemented design.

%timing_analysis <subcommand> <analysis_name>

delete (delete timing analysis)

The timing_analysis delete command removes a previously created analysis from the current ISE project.

% timing_analysis delete <analysis_name>

timing_analysis is the name of the Xilinx Tcl command.

delete is the name of the timing_analysis subcommand.

www.xilinx.com

Development System Reference Guide

8.2i specifications

Xilinx 8.2i is a significant version of the Xilinx ISE (Integrated Software Environment) that emerged in the early 2000s, marking an important milestone in the world of FPGA (Field-Programmable Gate Array) development. This version introduced a slew of advanced features, technologies, and characteristics that made it an indispensable tool for engineers and developers in designing, simulating, and implementing digital circuits.

One of the standout features of Xilinx 8.2i is its enhanced design entry capabilities. This version supports multiple design entry methods, including schematic entry, VHDL, and Verilog HDL, giving engineers the flexibility to choose their preferred approach. The integrated environment provides user-friendly graphical interfaces, making it accessible for both novice and experienced users.

Xilinx 8.2i's synthesis tools have been improved to enable more efficient design compilation and optimization. The new algorithms used in this version facilitate faster synthesis times while reducing power consumption and improving performance. Furthermore, it features support for advanced FPGA architectures, which allows for the implementation of more complex designs with greater efficiency.

The implementation tools in Xilinx 8.2i include advanced place and route capabilities, utilizing state-of-the-art algorithms for optimized resource usage. These tools enable designers to make better use of FPGA resources, ensuring that designs fit within the constraints of the target device while maximizing performance.

Another key characteristic of Xilinx 8.2i is its extensive support for various Xilinx devices such as the Spartan, Virtex, and CoolRunner series. This compatibility ensures that developers can leverage the powerful features of these FPGA families, including high-speed transceivers and DSP slices.

Xilinx 8.2i also places a strong emphasis on simulation and verification. The version integrates with various simulation tools, allowing for thorough testing of the designs before implementation. This reduces the risk of errors and ensures that the final product meets specifications.

In addition, this version includes support for design constraints, enabling engineers to specify timing, area, and other critical design parameters. By accommodating constraints, Xilinx 8.2i helps in achieving reliable and efficient designs tailored to project needs.

In summary, Xilinx 8.2i is a robust software development tool that enhances the design process for FPGAs. Its comprehensive features, including multiple design entry options, advanced synthesis and implementation tools, extensive device support, and strong simulation capabilities, make it a valuable resource for engineers and developers striving for innovation in digital design.

Xilinx 8.2i manual Timinganalysis generate timing analysis reports, Delete delete timing analysis

Models: 8.2i