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)

Receiving and transmitting data serially

8051 microcontrollers come with a built-in Universal Asynchronous Receiver Transmitter (UART) port for serial data exchange.

The serial port is controlled by a Special Function Register (SFR) called Serial Control (SCON). Its bits are defined as follows:

Bit Name Purpose
0 RI (short for Receive Interrupt) Set by UART when a byte is received completely
1 TI (short for Transmit Interrupt) Set by UART when a byte is transmitted completely
2 RB8 (short for Receive Bit 8) Stores the ninth bit of the received data in 9-bit mode.
3 TB8 (short for Transmit Bit 8) Stores the ninth bit of data to be transmitted in 9-bit mode (see below)
4 REN (short for Receiver Enabled) Enables (1) or disables (0) the receive operation
5 SM2 (Enable Multiprocessor) Enables (1) or disables (0) multiprocessor communication...