As editors of this Second Edition focusing on embedded systems, it is remarkable how many features of embedded systems have changed since the First Edition. What is also remarkable is how may features have stayed the same. The principles in the First Edition, written 4 years ago, are still applicable but the direction the industry is presently headed in could not have been predicted. Many sections in that First Edition focused on bringing a larger ecosystem to the embedded space, with an assumption that progression in power-saving devices and systems would bring in more Linux-based products. Though true, the advent of the entire Internet of Things (IoT) caused a refocus on becoming extremely efficient in terms of hardware resources for battery life and minimizing costs.

The authors of this Second Edition were selected based on their expertise in a specific subject area. In the same spirit as the authors of the First Edition, the authors of this edition were given guidelines and parameters for their chapters, with editing undertaken in the latter stages of production, bringing chapters together into a cohesive book. Their hard work and dedication are hopefully reflected in this Second Edition.

Rob would like to thank Susan his wife and Sam and Noah for their support as well as those in the embedded industry who work with him on a regular basis. The ideas, concepts, and approaches in this book largely come from the working relationships within the embedded area of the industry.

In addition to the authors, Mark would like to thank this family, especially his wife Shannon. Additional thanks go to Wes, RJ, Garret, Shelly, Mike, Todd, Dan, Glen, Dave, Mike, Brad, Spencer, Theoni, and the embedded engineering staff who work with Mark on a regular basis. Change is good.

We hope you find the book useful and that you learn about various aspects of embedded systems and apply them immediately to your designs and developments.

The authors have been supported in this work by NXP Semiconductors. Select images in this text were reprinted with the permission of NXP Semiconductors.

Thanks, Rob Oshana and Mark Kraeling.