Raspberry Pi Computer Architecture Essentials PDF
Preview Raspberry Pi Computer Architecture Essentials
Raspberry Pi Computer Architecture Essentials Table of Contents Raspberry Pi Computer Architecture Essentials Credits About the Author About the Reviewer www.PacktPub.com eBooks, discount offers, and more Why subscribe? 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 Errata Piracy Questions 1. Introduction to the Raspberry Pi’s Architecture and Setup History and background of the Raspberry Pi Raspberry Pi hardware specifications Dimensions System on Chip CPU GPU SDRAM 4 USB 2.0 ports and 1 SoC on-board USB MicroSD card port Ethernet port Audio GPIO pins Video – analog TV out Video – HDMI port Basic hardware needed The microSD card – the main storage and boot device of the Raspberry Pi 2 Preinstalled microSD card versus creating your own The NOOBS operating system installation manager Downloading the latest version of Raspbian Setting up your microSD card and installing the Raspbian operating system Raspbian installation wrap-up Check SSH is running RSA key generation for SSH Linux and Mac RSA key generation Windows RSA key generation Assign a static IP to your Raspberry Pi 2 Installing Screen and Vim Vim – an optional handy text editor Running tests on the OS and configuration changes Diagnostic tests Over and underclocking the Raspberry Pi Going further – testing the GPIO pins Some handy Linux commands Troubleshooting Summary 2. Programming on Raspbian Which programming languages? Assembly language Assembling and linking The C and C++ languages C – a brief introduction A quick look at C++ Our first C program Geany – a handy text editor and development environment Creating a new C program C libraries – a trove of reusable code The C (and C++) compiler Compiling and running our application The Python language A simple Python program Running a Python program from a file Summary 3. Low-Level Development with Assembly Language Back to basics Multiline comments Directives Single line comments Registers Branching The assembler The linker Makefiles Memory and addresses The .data directive The .balign directive Words Labels The memory The addresses LDR and SUB Running our program Adding power to our program – control structures If else statements Iteration Testing our control structures Summary 4. Multithreaded Applications with C/C++ What are threads? Thread types User level threads Kernel level threads Hybrid threads POSIX threads Steps involved in implementing threads Creation and termination Synchronization Scheduling An example in C Trying out our program A C++ equivalent The g++ command Going further – mutexes and joins Compile and test Summary 5. Expanding on Storage Options Booting up Setting up the external HDD Getting the disk name Setting up the HDD Modifying cmdline.txt Network-attached storage (NAS) Installing Samba Testing the NAS Mac Linux Windows Summary 6. Low-Level Graphics Programming VideoCore IV GPU Sample programs Accessing the frame buffer Check the display settings Testing our C code Filling the screen with a color A C program to turn the screen red Compile and run the C program Drawing a line Plotting pixels and drawing lines Compile and run Next steps – polygons Summary 7. Exploring the Raspberry Pi’s GPIO Pins Introduction to GPIO pins Standard GPIO I2C Serial Rx and Tx SPI PWM and PPM GPIO power voltages Hardware choices Prototyping shields and boards Cooking Hacks Arduino bridge shield Connecting directly to the GPIO pins Switching an LED on and off Setting up the hardware C blinking LED program Python blinking LED program Reading data from the GPIO pins in Python Summary 8. Exploring Sound with the Raspberry Pi 2 Introduction to the Raspberry Pi’s sound Configuring the audio output Setting the audio output Interacting with audio through GPIO Installing the audio drivers Hardware setup Loading drivers Getting some drum tracks Python drum machine Audio shields for the Raspberry Pi C and ALSA ALSA examples Introducing Sonic Pi Setup Experimenting with Sonic Pi Summary 9. Building a Web Server Introduction to web servers HTTP requests HTML Popular web servers available on the Raspberry Pi Apache NGINX Building a Python web server Python web server code Adding an index page and a favicon Adding database support SQLite SQL – a quick overview Python program with SQLite support Flask – displaying database data via Python Next steps Summary 10. Integrating with Third-Party Microcontrollers Genuino/Arduino microcontroller Setting up the Arduino software Installing the IDE on your Raspberry Pi 2 A quick guide to the Arduino IDE Integration with Arduino Serial communication over USB Communication between the Arduino and Raspberry Pi via GPIO Communication over I2C Communication over the Web Summary 11. Final Project Choose your storage mechanism Building a Flask-based website Adding a database A basic website Web forms Add Edit Adding in an LED Building the circuit – a recap Integrating with our Python app Extending the project further
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