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Real-Time Embedded Systems - 
      Ivan Cibrario Bertolotti
    
      Gabriele Manduchi

Real-Time Embedded Systems

Open-Source Operating Systems Perspective

; Gabriele Manduchi

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. Les mer
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Paperback
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Paperback
Legg i
Vår pris: 1164,-

(Paperback) Fri frakt!
Leveringstid: Sendes innen 21 dager

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.
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Utgitt:
Forlag: CRC Press
Innbinding: Paperback
Språk: Engelsk
Sider: 534
ISBN: 9781138075160
Format: 23 x 16 cm
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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