Android internals 01 - Basic concepts of mobile platforms (rev_1.1)
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This document contains notes from a lecture on Android internals. It discusses the Creative Commons license under which the content is shared, allows for distribution and modification with attribution. It then covers basic concepts of mobile platforms like power management, hardware, and touch interfaces. Specific topics discussed include system on chips, peripheral devices, and the device development cycle.
Android internals 01 - Basic concepts of mobile platforms (rev_1.1)
- 1. Android internals Egor Elizarov SPbSU 2012
- 2. Legal info Android internals by Egor Elizarov is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 3.0 Unported License You are free to – copy, distribute, display, and perform the work – make derivative works Under the following conditions – Attribution. You must give the original author credit – Share Alike. If you alter, transform, or build upon this work, you may distribute the resulting work only under a license identical to this one All pictures and trademarks are the property of their respective owners. Use of these trademarks and pictures is subject to owners permissions. Corrections, suggestions, contributions and translations are welcome! 2 Egor Elizarov SPbSU 2012
- 3. Lecture 1 Basic concepts of mobile platforms yegor.yelizarov(at)gmail.com Rev: 1.1 http://vk.com/android_internals Last update: 05/30/2012 3 Egor Elizarov SPbSU 2012
- 4. Why do we need OS To control resources To manage hardware To simulate simultaneous processes execution on a single core To provide inter-process communications To provide user interface 4 Egor Elizarov SPbSU 2012
- 5. Mobile OS features Power management Specific HW Special permission model Touch friendly UI 5 Egor Elizarov SPbSU 2012
- 6. Mobile OS history 6 Egor Elizarov SPbSU 2012
- 7. Peripherial devices Connectivity (WiFi, Bluetooth, 3G) Input devices (touchscreen, IR remote control, mouse, keyboard) Sensors (gyroscope, accelerometer, magnetometer, light, compass, GPS) Video system (LCD, DVI, HW acc.) 7 Egor Elizarov SPbSU 2012
- 8. System on Chip System On Chip - is an integrated circuit that integrates all components of a computer or other electronic system into a single chip. Popular CPU architectures: x86, PowerPC, ARM, MIPS ARM SoC Vendors: Texas Instruments, NVidia, Freescale, Samsung, Qualcomm, etc. 8 Egor Elizarov SPbSU 2012
- 9. Some terms Single board computer (Freescale i.MX53 quick start board, TI BeagleBoard) Evaluation board (TI OMAP3EVM, NVidia Tegra) Board Specific Package 9 Egor Elizarov SPbSU 2012
- 10. Device development cycle Evaluation board With BSP Hardware design Custom board Platform bring up Custom board With OS 10 Egor Elizarov SPbSU 2012
- 11. Next Time Android history High level architecture Android version control system Directory code layout Source: http://developer.android.com 11 Egor Elizarov SPbSU 2012
- 12. Useful links http://vk.com/android_internals http://developer.anroid.com http://android.com http://arowboat.org K. Yaghmour. Embedded Android. Early Release, O'Reilly, October 2011 12 Egor Elizarov SPbSU 2012
- 13. Thanks to Sergey Matyukevich for review and advices (www.linkedin.com/pub/sergey- matyukevich/31/889/769) Nikolay F. Fominykh for review and advices 13 Egor Elizarov SPbSU 2012