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Chapter 3

Quick Start Example Design

The quick start steps provide information to quickly generate a SPI-4.2 core, run the design through implementation with the Xilinx tools, and simulate the example design using the provided demonstration test bench. For more detailed information about this example design, see Chapter 4, “Detailed Example Design.”

Overview

The SPI-4.2 example design consists of the following:

SPI-4.2 Sink and Source core netlists

SPI-4.2 Sink and Source core simulation models

Example HDL wrapper (which instantiates the cores and example design)

Customizable demonstration test bench to simulate the example design

Generating the Core

To generate a SPI-4.2 core with default values using the Xilinx CORE Generator system, do the following:

1.Start the CORE Generator system.

For help starting and using the CORE Generator system, see the Xilinx CORE Generator Guide, available from the ISE documentation.

2.Choose File > New Project.

3.Type a directory name. For this example design, use the directory name design.

4.Set the following project options:

Part Options

-From Target Architecture, select either VirtexTM-4 or Virtex-5.

Note: If an unsupported silicon family is selected, the SPI-4.2 core will not appear in the taxonomy tree.

Note: The Device, Package and Speed Grade selected in the Part Options tab have no effect on the generated core. The core is delivered with an example UCF targeting either Virtex-4 4vlx25ff668 or Virtex-5 5v1x50-ff676.

Generation Options

-For Design Entry, select either VHDL or Verilog.

-For Vendor, select Synplicity or Other (for XST).

SPI-4.2 v8.5 Getting Started Guide

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UG154 March 24, 2008

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Xilinx UG154 manual Quick Start Example Design, Overview, Generating the Core

UG154 specifications

Xilinx UG154 is a comprehensive user guide that provides in-depth information about the architecture, features, and technologies of Xilinx's FPGA (Field Programmable Gate Array) devices. This guide is particularly vital for developers, engineers, and designers who work with Xilinx products, as it serves as a key resource throughout the development lifecycle.

One of the main features of Xilinx UG154 is its coverage of the device architecture, which details the programmable logic cells, configurable interconnects, and I/O capabilities. Xilinx FPGAs are known for their flexibility and scalability, allowing designers to implement complex digital circuits and systems that can be modified post-manufacturing, enabling rapid prototyping and iterative design processes.

Another key aspect highlighted in UG154 is the technological advancements in the latest Xilinx architectures, such as UltraScale and UltraScale+. These architectures incorporate advanced process technologies, providing improved performance and power efficiency. High-speed serial transceivers, embedded processing capabilities, and extensive memory options are also discussed, showcasing how these features enhance system integration and reduce design time.

The guide also delves into Xilinx's software ecosystem, featuring the Vivado Design Suite, which streamlines the design process through integrated design tools and a unified development environment. The Vivado suite supports various high-level synthesis, simulation, and analysis tools, facilitating a smoother transition from concept to implementation.

In addition to hardware and software integration, UG154 covers the importance of IP cores, which are pre-designed functional blocks that can be easily integrated into FPGA designs. Xilinx provides a vast library of IP cores, ranging from basic logic functions to sophisticated signal processing algorithms, enabling engineers to accelerate development without sacrificing performance.

Another focus of UG154 is the emphasis on design best practices and optimization techniques that can be employed to maximize the capabilities of Xilinx devices. Topics such as timing closure, resource optimization, and power management are among the critical areas addressed, which help designers achieve the desired performance within the constraints of their applications.

Overall, Xilinx UG154 serves as a vital resource that equips engineers with the knowledge and tools necessary to leverage the full potential of Xilinx FPGAs. By understanding the features, technologies, and architectural characteristics detailed within this guide, designers can create innovative solutions across a range of applications, including telecommunications, automotive, aerospace, and industrial automation.