By Christopher Hallinan
Up-to-the-Minute, whole advice for constructing Embedded strategies with Linux
Linux has emerged as today’s no 1 working procedure for embedded items. Christopher Hallinan’s Embedded Linux Primer has confirmed itself because the definitive real-world advisor to development effective, high-value, embedded platforms with Linux. Now, Hallinan has completely up to date this hugely praised booklet for the latest Linux kernels, services, instruments, and help, together with complicated multicore processors.
Drawing on greater than a decade of embedded Linux adventure, Hallinan is helping you swiftly climb the educational curve, no matter if you’re relocating from legacy environments or you’re new to embedded programming. Hallinan addresses today’s most vital improvement demanding situations and demonstrates how one can clear up the issues you’re probably to come across.
You’ll construct a latest, effective embedded Linux improvement setting, after which put it to use as productively as attainable. Hallinan deals up to date tips on every little thing from kernel configuration and initialization to bootloaders, machine drivers to dossier platforms, and BusyBox utilities to real-time configuration and process research. This variation provides solely new chapters on UDEV, USB, and open resource construct platforms.
* journey the common embedded approach and improvement atmosphere and comprehend its ideas and components.
* comprehend the Linux kernel and userspace initialization processes.
* Preview bootloaders, with particular emphasis on U-Boot.
* Configure the reminiscence know-how units (MTD) subsystem to interface with flash (and different) reminiscence devices.
* utilize BusyBox and most recent open resource improvement tools.
* examine from extended and up-to-date assurance of kernel debugging.
* construct and research real-time platforms with Linux.
* discover ways to configure gadget records and motive force loading with UDEV.
* stroll via specific insurance of the USB subsystem.
* Introduces the most recent open resource embedded Linux construct systems.
* Reference appendices contain U-Boot and BusyBox commands.
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Extra info for Embedded Linux Primer: A Practical Real-World Approach (2nd Edition)
The Linux Foundation sponsors the work of Linus Torvalds, the creator of Linux. The Linux Foundation sponsors several working groups to deﬁne standards and participate in the development of features targeting many important Linux platform attributes. The next two sections introduce some of these initiatives. 3 Carrier-Grade Linux A signiﬁcant number of the world’s largest networking and telecommunications equipment manufacturers are either developing or shipping carrier-class equipment running Linux as the operating system.
Embedded systems often have limited memory, small or no hard drives, and sometimes no external network connectivity. Frequently, the only user interface is a serial port and some LEDs. These and other issues can present challenges to the embedded system developer. 1 BIOS Versus Bootloader When power is ﬁrst applied to the desktop computer, a software program called the BIOS immediately takes control of the processor. ) The BIOS might actually be stored in Flash memory (described shortly) to facilitate ﬁeld upgrade of the BIOS program itself.
RAM: 0x00000000-0x04000000, 0x0001f560-0x03fd1000 FLASH: 0x500000000 - 0x51000000, 128 RedBoot> Serial Terminal FIGURE 2-2 Embedded Linux development setup For this example, our primary connection to the embedded Linux target is via the RS-232 connection. A serial terminal program is used to communicate with the target board. 2 The author has switched to using screen as his terminal of choice, replacing the functionality of minicom. It offers much more ﬂexibility, especially for capturing traces, and it’s more forgiving of serial line garbage often encountered during system bringup or troubleshooting.
Embedded Linux Primer: A Practical Real-World Approach (2nd Edition) by Christopher Hallinan