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Using Yocto Project with BeagleBone Black

3.2 (6)

Using Yocto Project with BeagleBone Black

3.2 (6)

Overview of this book

This book is ideal for system developers with knowledge and experience of embedded systems. Knowledge of BeagleBone Black is assumed, while no knowledge of Yocto Project build system is necessary.

Preface

Preface

What this book covers

What you need for this book

Who this book is for

Conventions

Reader feedback

Customer support

Downloading the example code

Free Chapter

1. Welcome to Yocto Project and BeagleBone Black

1. Welcome to Yocto Project and BeagleBone Black

Setting up a host environment

Obtaining Yocto Project

Let's build for BeagleBone

Creating partitions and formatting the SD card

Copying images to the card

Hardware setup

Serial setup

Booting BeagleBone

More about configuration files

Summary

2. What's BitBake All About?

2. What's BitBake All About?

A brief history of BitBake

Legacy tools and BitBake

BitBake execution

BitBake options

Summary

3. Creating the helloworld Recipe

3. Creating the helloworld Recipe

Creating helloworld

Contents of the helloworld recipe

Building a recipe

Build directories

Tasks

Deploying helloworld

Summary

4. Adding Multimedia to Your Board

4. Adding Multimedia to Your Board

Introducing gaku

The recipe for gaku

GStreamer recipes' short trip

Action time

Summary

5. Creating and Exploring Layers

5. Creating and Exploring Layers

Layer creation using script

Contents of layers

Conditional selection based on layers

Append files

Packagegroups

Summary

6. Your First Console Game

6. Your First Console Game

Hardware requirements

Pacman4Console

Let's develop our recipe

Adding a package to the root filesystem

Summary

7. Turning BeagleBone into a Home Surveillance System

7. Turning BeagleBone into a Home Surveillance System

Problem statement

Requirements

Existing solutions / literature survey

Selected solution

Let's start the fun

Client side

Get ready for running and surprises

Further enhancements

Summary

8. BeagleBone as a Wi-Fi Access Point

8. BeagleBone as a Wi-Fi Access Point

Problem statement / use case

Requirements

Literature survey

Our strategy

Enabling kernel support

Required packages

Changing upstart scripts

Recipe Hotspot-yb

Enabling hotspot-yb

Managing in packagegroups

Knowing the issues/enhancements

Summary

Index

Index

Customer Reviews

3.2 (6)

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4 star

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3 star

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2 star

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1 star

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Serial setup

BeagleBone Black uses a serial debug port to communicate with the host machine. We will use minicom as a serial terminal client to communicate over the serial port. To set up minicom, perform the following steps:

Run this setup command as a privileged user:
```
$  sudo minicom -s
```
Mmicom main configuration dialogue
A menu will appear on the terminal with nine different options, as shown in the preceding screenshot. We won't be changing many of these. The up and down arrow keys can be used to select these options. We will select the third option, Serial port setup. Choose this option by pressing the Enter key. You will enter into another menu in which each option is listed, along with a corresponding key on the keyboard on the left-hand side to choose the option. Press the A key on the keyboard to set your serial device to /dev/ttyUSB0, and then press Enter. If you are not sure which device is created in your case, you could find this out by using the following command combination on another terminal:
```
$  dmesg | grep "pl2303 converter"
[37532.385583] pl2303 3-3:1.0: pl2303 converter detected
[37532.386415] usb 3-3: pl2303 converter now attached to ttyUSB0
```
Press E to set the baud rate. Use the A and B keys to navigate the baud rate values. A corresponds to next and B to previous. Keep pressing B till you get 115200 8N1. Then, press Enter to choose this setting and go back to the previous menu.
Next, we need to press F and G to change enablement statuses of hardware flow control and software flow control. Both need to be set to No. Finally, the settings should look as shown in this screenshot:
Minicom Serial Port Setup dialogue
Choose Save setup as dfl to avoid reconfiguring every time and choose Exit to go to minicom. Don't exit from it if you want to observe whether there is any activity on the serial port.

Visually different images

CONTINUE READING

83

Tech Concepts

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Programming languages

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Using Yocto Project with BeagleBone Black

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