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  • Book Overview & Buying Beaglebone Essentials
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Beaglebone Essentials

Beaglebone Essentials

By : Rodolfo Giometti
5 (2)
Buy this Book
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Beaglebone Essentials

Beaglebone Essentials

5 (2)
By: Rodolfo Giometti
Buy this Book

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

What is a serial port?

A serial port is not a peripheral, but it is a serial communication interface through which information transfers in or out one bit at a time. These interfaces are one of the most important communication ports we can have in an embedded device. In fact, in the first chapter, we discovered that we can get full control of our BeagleBone Black only by getting access to its serial console (which normally runs over a serial port even if, in our case, it has been emulated via a USB device).

In the industry market, we can find tons of peripherals that use a serial port to communicate with the CPU, so that's why we must know a bit more about how this communication interface works, and how we can get access to its connected devices in order to exchange data with them.

A peripheral using a serial port to communicate with the CPU is normally called a serial peripheral or serial device.

The electrical lines

The serial port lines are mentioned in the following table:

Name

Description...

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Tech Concepts
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Programming languages
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Beaglebone Essentials
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