Book Image

Learning Embedded Android N Programming

By : Morgillo
Book Image

Learning Embedded Android N Programming

By: Morgillo

Overview of this book

Take a deep dive into the Android build system and its customization with Learning Embedded Android Programming, written to help you master the steep learning curve of working with embedded Android. Start by exploring the basics of Android OS, discover Google’s “repo” system, and discover how to retrieve AOSP source code. You'll then find out to set up the build environment and the first AOSP system. Next, learn how to customize the boot sequence with a new animation, and use an Android “kitchen” to “cook” your custom ROM. By the end of the book, you'll be able to build customized Android open source projects by developing your own set of features.
Table of Contents (10 chapters)
9
Index

Altering the CPU frequency


Overclocking a CPU is one of the most loved topics among advanced users. The idea of getting the maximum amount of power from your device is exciting. Forums and blogs are filled with discussions about overclocking and in this section we are going to have an overview and clarify a few tricky aspects that you could deal with on your journey.

Every CPU is designed to work with a specific clock frequency or within a specific frequency range. Any modern CPU has the possibility to scale its clock frequency to maximize performance when needed and power consumption when performance is not needed, saving precious battery in case of our beloved mobile devices. Overclocking, then, denotes the possibility to alter this working clock frequency via software, increasing it to achieve performance higher than the one the CPU was designed for.

Contrary to what we often read on unscrupulous forum threads or blogs, overclocking a CPU can be a very dangerous operation: we are forcing...