Real-Time Embedded Systems: Open-Source Operating Systems Perspective, 1st Edition (Paperback) book cover

Real-Time Embedded Systems

Open-Source Operating Systems Perspective, 1st Edition

By Ivan Cibrario Bertolotti, Gabriele Manduchi

CRC Press

534 pages | 134 B/W Illus.

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Description

From the Foreword:

"…the presentation of real-time scheduling is probably the best in terms of clarity I have ever read in the professional literature. Easy to understand, which is important for busy professionals keen to acquire (or refresh) new knowledge without being bogged down in a convoluted narrative and an excessive detail overload. The authors managed to largely avoid theoretical-only presentation of the subject, which frequently affects books on operating systems.

… an indispensable [resource] to gain a thorough understanding of the real-time systems from the operating systems perspective, and to stay up to date with the recent trends and actual developments of the open-source real-time operating systems."

—Richard Zurawski, ISA Group, San Francisco, California, USA

Real-time embedded systems are integral to the global technological and social space, but references still rarely offer professionals the sufficient mix of theory and practical examples required to meet intensive economic, safety, and other demands on system development. Similarly, instructors have lacked a resource to help students fully understand the field. The information was out there, though often at the abstract level, fragmented and scattered throughout literature from different engineering disciplines and computing sciences.

Accounting for readers’ varying practical needs and experience levels, Real Time Embedded Systems: Open-Source Operating Systems Perspective offers a holistic overview from the operating-systems perspective. It provides a long-awaited reference on real-time operating systems and their almost boundless application potential in the embedded system domain.

Balancing the already abundant coverage of operating systems with the largely ignored real-time aspects, or "physicality," the authors analyze several realistic case studies to introduce vital theoretical material. They also discuss popular open-source operating systems—Linux and FreRTOS, in particular—to help embedded-system designers identify the benefits and weaknesses in deciding whether or not to adopt more traditional, less powerful, techniques for a project.

Table of Contents

Introduction

I: Concurrent Programming Concepts

A Case Study: Vision Control

Input Output on Computers

Input/Output Operations and the Operating System

Acquiring Images froma Camera Device

Edge Detection

Finding the Center Coordinates of a Circular Shape

Real-Time Concurrent Programming Principles

The Role of Parallelism

Definition of Process

Process State

Process Life Cycle and Process State Diagram

Multithreading

Deadlock

A Simple Example

Formal Definition of Deadlock

Reasoning about Deadlock: The Resource Allocation Graph

Living with Deadlock

Deadlock Prevention

Deadlock Avoidance

Deadlock Detection and Recovery

Interprocess Communication Based on Shared Variables

Race Conditions and Critical Regions

Hardware-Assisted Lock Variables

Software-Based Mutual Exclusion

From Active to Passive Wait

Semaphores

Monitors

Interprocess Communication Based on Message Passing

Basics ofMessage Passing

Naming Scheme

Synchronization Model

Message Buffers

Message Structure and Contents

Producer–Consumer Problem with Message Passing

Interprocess Communication Primitives in POSIX/Linux

Threads and Processes

Interprocess Communication among Threads

Interprocess Communication among Processes

Clocks and Timers

Threads or Processes?

Interprocess Communication Primitives in FreeRTOS

FreeRTOS Threads and Processes

Message Queues

Counting, Binary, and Mutual Exclusion Semaphores

Clocks and Timers

Network Communication

The Ethernet Protocol

TCP/IP and UDP

Sockets

UDP Sockets

Lock and Wait-Free Communication

Basic Principles and Definitions

Multidigit Registers

Application to the Readers/Writer Problem

Universal Constructions

 

II: Real-Time Scheduling Analysis

Real-Time Scheduling Based on the Cyclic Executive

Scheduling and Process Models

The Cyclic Executive

Choice of Major and Minor Cycle Length

Tasks with Large Period or Execution Time

Real-Time, Task-Based Scheduling

Fixed and Variable Task Priority

Rate Monotonic

The EarliestDeadline First Scheduler

Schedulability Analysis Based on Utilization

Processor Utilization

Sufficient Schedulability Test for Rate Monotonic

Schedulability Test for EDF

Schedulability Analysis Based on Response Time Analysis

Response Time Analysis

Computing the Worst-Case Execution Time

Aperiodic and Sporadic Tasks

Task Interactions and Blocking

The Priority Inversion Problem

The Priority Inheritance Protocol

The Priority Ceiling Protocol

Schedulability Analysis and Examples

Self-Suspension and Schedulability Analysis

Self-Suspension and the Critical Instant Theorem

Self-Suspension and Task Interaction

Extension of the Response Time Analysis Method

 

 

III: Advanced Topics

Internal Structure of FreeRTOS

Task Scheduler/Context Switch

Synchronization Primitives

Porting FreeRTOS to a New Architecture

Internal Structures and Operating Principles of Linux Real-Time Extensions

The Linux Scheduler

Kernel Preemption

The PREEMPT RT Linux Patch

The Dual-Kernel Approach

OS Abstraction Layer

An Object Oriented Interface to Threads and Other IPC Mechanisms

A Sample Multiplatform Application

Control Theory and Digital Signal Processing Primer

Case Study 1: Controlling the Liquid Level in a Tank

Case Study 2: Implementing a Digital Low-Pass Filter

About the Series

Embedded Systems

Learn more…

Subject Categories

BISAC Subject Codes/Headings:
COM059000
COMPUTERS / Computer Engineering
TEC007000
TECHNOLOGY & ENGINEERING / Electrical
TEC008000
TECHNOLOGY & ENGINEERING / Electronics / General