文件名称:
Embedded Linux System Design and Development
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文件大小: 6mb
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上传时间: 2018-10-18
详细说明： xxv Introduction The text is divided into ten chapters and two appendices. Chapter 1, “Introduction,” gives a brief history of embedded Linux and what the benefits of embedded Linux are over other RTOSs. It discusses in detail the features of various open source and commercial embedded Linux distributions available. The chapter concludes by presenting a transition roadmap from a traditional RTOS to embedded Linux. Chapter 2, “Getting Started,” explains the architecture of embedded Linux and compares it with traditional RTOS and microkernel architectures. In brief various Linux kernel subsystems such as the hardware abstraction layer, memory management, scheduler, file system, and so on are given. A small description of the user-space Linux programming model is also given. The second half of the chapter explains the Linux start-up sequence, from bootloaders to kernel start-up and user-space start-up scripts. The last section explains the steps involved in building a GNU cross-platform toolchain. Chapter 3, “Board Support Package,” explains bootloader architecture followed by a discussion on the system memory map, both hardware and software memory maps. The second half of the chapter explains interrupt management, the PCI subsystem, timers, UART, and power management in detail. Chapter 4, “Embedded Storage,” explains the MTD subsystem architecture for accessing flash devices. The second half of the chapter discusses various embedded file systems such as RAMFS, CRAMFS, JFFS2, NFS, and so on. The chapter also discusses various methods for optimizing storage space in an embedded system, both kernel and user-space optimizations. A discussion of various applications designed for embedded Linux such as Busybox is given. Finally some steps for tuning the kernel memory are given. Chapter 5, “Embedded Drivers,” discusses in detail various embedded drivers such as the Serial driver, Ethernet driver, I2C subsystem, and USB gadgets. ...展开详情收缩
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