R

TRACE Reports

Summary Report (Without a Physical Constraints File Specified)

The following sample summary report represents the output of this TRACE command.

trce o summary.twr ramb16_s1.ncd

The name of the report is summary.twr. No preference file is specified on the command line, and the directory containing the file ram16_s1.ncd did not contain a PCF called ramb16_s1.pcf.

------------------------------------------------------------------

Xilinx TRACE

Copyright (c) 1995-2005 Xilinx, Inc. All rights reserved.

Design

file:

ramb16_s1.ncd

Device,speed:

xc2v250,-6

Report

level:

summary report

------------------------------------------------------------------

WARNING:Timing - No timing constraints found, doing default enumeration.

Asterisk (*) preceding a constraint indicates it was not met.

------------------------------------------------------------------

Constraint

Requested

Actual Logic

Levels

------------------------------------------------------------------

Default period analysis 2.840ns 2

------------------------------------------------------------------

Default net enumeration 0.001ns

------------------------------------------------------------------

All constraints were met.

 

 

 

Data Sheet report:

 

 

 

 

-----------------

 

 

 

 

All values displayed in nanoseconds (ns)

 

Setup/Hold to clock clk

 

 

 

---------------

+------------

+

------------

+

 

Setup to

Hold to

Source Pad

clk (edge) clk (edge)

---------------

+------------

+

------------

+

ad0

0.263(R)

0.555(R)

ad1

0.263(R)

0.555(R)

ad10

0.263(R)

0.555(R)

ad11

0.263(R)

0.555(R)

ad12

0.263(R)

0.555(R)

ad13

0.263(R)

0.555(R)

.

 

 

 

 

 

.

 

 

 

 

 

.

 

 

 

 

 

---------------

+------------

+

------------

+

Clock clk to Pad

 

 

 

 

---------------

+------------

+

 

 

 

clk (edge)

 

 

Destination Pad

to PAD

 

 

---------------

+------------

+

 

 

d0

7.496(R)

 

 

---------------

+------------

+

 

 

Development System Reference Guide

www.xilinx.com

231

Page 231
Image 231
Xilinx 8.2i manual Summary Report Without a Physical Constraints File Specified, Trce -o summary.twr ramb16s1.ncd

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.