Embedded Programming with Modern C++ Cookbook

How it works...

For our sample applications, we are going to use an emulator for the 8051 microcontroller. Several of them are available; however, we will be using MCU8051IDE since it's readily available in the Ubuntu repository.

We install it as a regular Ubuntu package, as follows:

# apt install -y mcu8051ide

This is a GUI IDE and requires an X Window system to run. If you use Linux or Windows as your working environment, consider installing and running it directly from https://sourceforge.net/projects/mcu8051ide/files/.

The simple program we created defines a global variable called Counter, as shown here:

volatile int Counter = 0;

This is defined as volatile, indicating that it can be changed externally and that a compiler shouldn't try ...