<p>This book integrates new ideas and topics from real time systems, embedded systems, and software engineering to give a complete picture of the whole process of developing software for real-time embedded applications. You will not only gain a thorough understanding of concepts related to microprocessors, interrupts, and system boot process, appreciating the importance of real-time modeling and scheduling, but you will also learn software engineering practices such as model documentation, model analysis, design patterns, and standard conformance.</p><p>This book is split into four parts to help you learn the key concept of embedded systems; Part one introduces the development process, and includes two chapters on microprocessors and interrupts---fundamental topics for software engineers; Part two is dedicated to modeling techniques for real-time systems; Part three looks at the design of software architectures and Part four covers software implementations, with a focus on POSIX-compliant operating systems.</p><p>With this book you will learn:</p><ul><li>The pros and cons of different architectures for embedded systems </li><li>POSIX real-time extensions, and how to develop POSIX-compliant real time applications</li><li>How to use real-time UML to document system designs with timing constraints</li><li>The challenges and concepts related to cross-development </li><li>Multitasking design and inter-task communication techniques (shared memory objects, message queues, pipes, signals)</li><li>How to use kernel objects (e.g. Semaphores, Mutex, Condition variables) to address resource sharing issues in RTOS applications</li><li>The philosophy underpinning the notion of &quot;resource manager&quot; and how to implement a virtual file system using a resource manager</li><li>The key principles of real-time scheduling and several key algorithms</li></ul><ul><li>Coverage of the latest UML standard (UML 2.4)</li><li>Over 20 design patterns which represent the best practices for reuse in a wide range of real-time embedded systems</li><li>Example codes which have been tested in QNX---a real-time operating system widely adopted in industry</li></ul>