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)

Using Timer 1 as an event counter to count a 1 Hz pulse

8051 timers have dual functionality. When they are activated by the clock oscillator, they act as timers. However, they can also be activated by the signal pulse on the external pins, that is, P3.4 (Timer 0) and P3.5 (Timer 1), acting as counters.

In this recipe, we will learn how to program Timer 1 so that it counts the activations of the P3.5 pin of the 8051 processor.

How to do it...

Follow these steps to complete this recipe:

  1. Open mcu8051ide.
  2. Create a new project called Counters.
  3. Create a new file called generator.c and put the following code snippet into it. This increments a counter variable each time a timer interrupt is triggered: