Building Embedded Linux Systems

The course introduces the developer to different components of an embedded Linux system, provides information on using cross-compilers, building the kernel, building the root filesystem, building U-boot and building the tool chain.

• C Programming

• Using GNU/Linux

• Embedded Systems

• Duration: 36 hours

• Span for Weekdays: 3 weeks

• Span for Weekends: 5 weeks

Components of GNU/Linux System

• Boot Loader

• Console

• Storage Media

• Filesystems

• Root Filesystem + Shell + Utilities

• Compiler

• C Library

• Debuggers

Make

• Make Rules

• Macros

• Suffix Rules

Introduction to Drivers

• Unix/Linux Device Abstraction

• Device Files

• Types of Drivers

• Mouse Device Access

• Sound Mixer Device

• RTC Access through /proc

• Print Partition Table

Hello Embedded World!

• Accessing the target

  • Console on Serial Port

  • Minicom Usage

• Cross compiling hello world program

  • About cross compilers

  • GNU Tool Chain

  • Using cross compilers

• Downloading program to target

  • TFTP commands

Building Applications

• Building third party applications

  • configure

  • build, host, target

  • cross compilation

Building Filesystem Image

• Storage Types

• MTD devices

• Filesystems

• Creating filesystem image from filesystem contents

• Flashing root filesystem

Building Shell and Utilites

• Busybox Introduction

• Configuring Busybox

• Rebuilding the root file system

Building a Root Filesystem

• Contents of root filesystem

• Building root filesystem

• Space optimization

Building the Kernel

• Kernel configuration

• Building the kernel

• Booting from the new kernel

• Kernel Boot Args

Building the Boot Loader

• U-Boot Introduction

• Role of a Boot Loader

• Commands

• Building U-Boot