This book is self-published and is printed on demand. The original ISBN was generated in 2012, but if you purchase the book new from CreateSpace or Amazon you will get the new version, which was uploaded January 3, 2017. This book, now in its fourth edition (January 2017), is the third in a series of three books that teach the fundamentals of embedded systems as applied to ARM Cortex-M microcontrollers. This book specifically covers the TM4C and MSP432 microcontrollers; however, it could be used with any Cortex-M microcontroller. This third volume is primarily written for senior undergraduate or first-year graduate electrical and computer engineering students. It could also be used for professionals wishing to design or deploy a real-time operating system onto an ARM platform.