R

Example Tcl Scripts

#rerun with only out-of-date partitions re-implemented process run "Implement Design"

#close project

project close

Sample Tcl Script for Advanced Scripting

#create a new project and set device properties project new watchvhd.ise

project set family virtex2p project set device xc2VP2 project set package fG25 project get package project set speed -7

#add the watch vhd files

xfile add dve_ccir_top.v

xfile add stopwatch.vhd statmatch.vhd cnt60.vhd dcm1.vhd decode.vhd xfile add tenths.vhd hex2led.vhd watchvhd.ucf

#check that no partitions are present yet set dus [search * -type partition]

#search for all design instances

set dus [search * -type instance]

#display all design instances collection foreach du $dus {

puts "Name [object name $du], Type [object type $du]"

}

#confine search to the top-level instances only

set dus [search {/[^/]+/[^/]+} -type instance -regexp -exactmatch]

#define partitions for all the toplevel instances in the design (note that the last partition created is returned)

partition new [search {/[^/]+/[^/]+} -type instance -regexp - exactmatch]

#check that we created something search * -type partition

Development System Reference Guide

www.xilinx.com

99

Page 99
Image 99
Xilinx 8.2i manual Sample Tcl Script for Advanced Scripting

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.