C is the language of choice for embedded programming. It provides a way to precisely control the system on a chip (SOC) controllers that seem to be in everything from phones to cars to smart light bulbs. But learning the language is only half the battle. You also need to know what the language is doing to your system. This book uses a Nucleo ARM development board with a small, low-cost chip to explore how the compiler works and what goes on behind the scenes. You'll discover how to work with a system that has limited memory and I/O, but that still has enough power to perform complex operations. In Bare Metal C, you'll learn: The basics of the C language, What a number is (it's not a simple concept if you look closely), The steps the compiler takes to turn code into a program, How to write code that directly accesses the I/O system, How to write-and not write-an interrupt routine, How to program for big iron, including how to use the heap, the buffered I/O system, floating-point numbers, and other features of large machines, If you're interested in learning the C language, or if you already know C and want to program embedded systems, Bare Metal C will show you the way. Requirements: A Nucleo ARM development board Book jacket.