android internals 01 - basic concepts of mobile platforms (rev_1.1)

Android internalsEgor ElizarovSPbSU 2012

Egor Elizarov SPbSU 20122

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Lecture 1

Basic concepts of mobile platforms

yegor.yelizarov(at)gmail.com

http://vk.com/android_internalsRev: 1.1Last update: 05/30/2012

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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

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Mobile OS features

Power management

Specific HW

Special permission model

Touch friendly UI

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Mobile OS history

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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.)

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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.

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Some terms

Single board computer (Freescale i.MX53 quick start board, TI BeagleBoard)

Evaluation board (TI OMAP3EVM, NVidia Tegra)

Board Specific Package

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Device development cycle

Evaluation boardWith BSP

Custom board

Hardware design

Platform bring up

Custom boardWith OS

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Next Time

Android history

High level architecture

Android version control system

Directory code layoutSource: http://developer.android.com

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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

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Thanks to

Sergey Matyukevich for review and advices (www.linkedin.com/pub/sergey-matyukevich/31/889/769)

Nikolay F. Fominykh for review and advices