February 2015
Intermediate to advanced
686 pages
18h 52m
English
Content preview from Real-Time Embedded Systems
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Chapter 5
Embedded System Boot Process
Abstract
As an embedded system is powered on, the execution control is first obtained by a special program called the system bootloader. The bootloader, located in nonvolatile memory, is responsible for setting up the processor state and preparing for loading the embedded application—an Executable and Linking Format (ELF) object. A bootloader can load an ELF object from the host platform via a serial or network connection, or directly from nonvolatile memory on the target board. An ELF object is not directly executable until it is mapped to its run address to form a memory image, or a process image in operating system terms. As case studies, we examine the boot process of the AT91SAM9G45 evaluation board ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.