Book Image

Embedded Programming with Modern C++ Cookbook

By : Igor Viarheichyk
Book Image

Embedded Programming with Modern C++ Cookbook

By: Igor Viarheichyk

Overview of this book

Developing applications for embedded systems may seem like a daunting task as developers face challenges related to limited memory, high power consumption, and maintaining real-time responses. This book is a collection of practical examples to explain how to develop applications for embedded boards and overcome the challenges that you may encounter while developing. The book will start with an introduction to embedded systems and how to set up the development environment. By teaching you to build your first embedded application, the book will help you progress from the basics to more complex concepts, such as debugging, logging, and profiling. Moving ahead, you will learn how to use specialized memory and custom allocators. From here, you will delve into recipes that will teach you how to work with the C++ memory model, atomic variables, and synchronization. The book will then take you through recipes on inter-process communication, data serialization, and timers. Finally, you will cover topics such as error handling and guidelines for real-time systems and safety-critical systems. By the end of this book, you will have become proficient in building robust and secure embedded applications with C++.
Table of Contents (17 chapters)

Working with delays

Periodic data processing is a common pattern in many embedded applications. The code does not need to work all the time. If we know in advance when processing is needed, an application or a worker thread can be inactive most of the time, waking up and processing data only when needed. It saves power consumption or lets other applications running on the device use the CPU resources when the application is idle.

There are several techniques to organize periodic processing. A worker thread that runs a loop with a delay in it is one of the simplest and most common of them.

C++ provides standard functions to add a delay to the current execution thread. In this recipe, we will learn two ways of adding a delay into an application and discuss their pros and cons.