Book Image

Architecting High-Performance Embedded Systems

By : Jim Ledin
4 (1)
Book Image

Architecting High-Performance Embedded Systems

4 (1)
By: Jim Ledin

Overview of this book

Modern digital devices used in homes, cars, and wearables contain highly sophisticated computing capabilities composed of embedded systems that generate, receive, and process digital data streams at rates up to multiple gigabits per second. This book will show you how to use Field Programmable Gate Arrays (FPGAs) and high-speed digital circuit design to create your own cutting-edge digital systems. Architecting High-Performance Embedded Systems takes you through the fundamental concepts of embedded systems, including real-time operation and the Internet of Things (IoT), and the architecture and capabilities of the latest generation of FPGAs. Using powerful free tools for FPGA design and electronic circuit design, you’ll learn how to design, build, test, and debug high-performance FPGA-based IoT devices. The book will also help you get up to speed with embedded system design, circuit design, hardware construction, firmware development, and debugging to produce a high-performance embedded device – a network-based digital oscilloscope. You’ll explore techniques such as designing four-layer printed circuit boards with high-speed differential signal pairs and assembling the board using surface-mount components. By the end of the book, you’ll have a solid understanding of the concepts underlying embedded systems and FPGAs and will be able to design and construct your own sophisticated digital devices.
Table of Contents (15 chapters)
1
Section 1: Fundamentals of High-Performance Embedded Systems
5
Section 2: Designing and Constructing High-Performance Embedded Systems
10
Section 3: Implementing and Testing Real-Time Firmware

Developing the project schematic diagram

The entire circuit diagram for the oscilloscope project is organized into six hierarchical KiCad sheets as shown in the following figure:

Figure 6.15 – Project schematic sheets

The contents of each sheet are as follows:

  • Analog Inputs: This portion of the circuitry receives an analog input from a standard oscilloscope probe in the range ±10 V and transforms it into a differential signal in the range ±1.0 V for input to the ADC.
  • ADC: This portion of the circuit connects the ±1.0 V analog signal to the ADC input pins. This diagram also connects a 100 MHz digital clock signal from the Arty board to the ADC. The ADC provides high-speed LVDS differential outputs for two lanes (OUT1A and OUT1B) as well as a data clock (DCO) that connect to Arty board inputs. The ADC used in the project is the Linear Technology LTC2267-14, a dual-channel 14-bit ADC capable of 105 million samples per second...