Book Image

Beaglebone Essentials

By : Rodolfo Giometti
Book Image

Beaglebone Essentials

By: Rodolfo Giometti

Overview of this book

If you are a developer with some hardware or electrical engineering experience who wants to learn how to use embedded machine-learning capabilities and get access to a GNU/Linux device driver to collect data from a peripheral or to control a device, this is the book for you.

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Beaglebone Essentials
Rodolfo Giometti
May, 2015 | 240 pages
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Table of Contents (13 chapters)
Preface
Preface
What this book covers
What you need for this book
Who this book is for
Conventions
Reader feedback
Customer support
Free Chapter
1
1. Installing the Developing System
1. Installing the Developing System
Embedded world terms
A system overview
Checking out the preloaded tools
Setting up a developing system
(Re)Installing Debian
Summary
2
2. Managing the System Console
2. Managing the System Console
Getting access to the serial console
Basic system management
A quick tour of the bootloader
Summary
3
3. Compiling versus Cross-compiling
3. Compiling versus Cross-compiling
Native compilation versus cross-compilation
Compiling a user-space software package
Compiling the kernel
Summary
4
4. Quick Programming with Scripts
4. Quick Programming with Scripts
The GPIO subsystem
Managing an LED in PHP
Managing an LED in Python
Managing an LED in Bash
Summary
5
5. Device Drivers
5. Device Drivers
What is a device driver?
The modutils
Writing our own device driver
Summary
6
6. Serial Ports and TTY Devices
6. Serial Ports and TTY Devices
What is a serial port?
Implementation of serial ports
The serial ports in Linux
The communication parameters
A simple serial echo
Managing a real device
Summary
7
7. Universal Serial Bus – USB
7. Universal Serial Bus – USB
What is the Universal Serial Bus?
The electrical lines
The USB bus in Linux
Accessing the raw bus
Summary
8
8. Inter-integrated Circuit – I2C
8. Inter-integrated Circuit – I2C
What is the I2C bus?
The electrical lines
The I2C bus in Linux
Getting access to I2C devices
Accessing the bus directly
Summary
9
9. Serial Peripheral Interface – SPI
9. Serial Peripheral Interface – SPI
What is the SPI bus?
The electrical lines
Getting access to the SPI devices
Accessing the raw bus
Summary
10
10. 1-Wire Bus – W1
10. 1-Wire Bus – W1
What is the 1-Wire bus?
The electrical lines
The 1-Wire bus in Linux
Getting access to 1-Wire devices
Summary
11
11. Useful System Daemons
11. Useful System Daemons
What is a daemon?
Useful and ready-to-use daemons
Writing a custom daemon
Summary
12
Index
Index

Summary

As you can see the SPI bus is quite powerful, as it implements an efficient data stream; on the other hand, it can be easily managed with a large variety of different slave devices.

In the next chapter, we'll see another available bus for our BeagleBone Black that allows us to communicate with some sensors using only one wire. It's time to go to the next chapter and discover the 1-Wire bus.

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