Embedded Systems Mohammad A. Gowayyed (c) 2012 Mohammad A. Gowayyed1.

(c) 2012 Mohammad A. Gowayyed 1

Embedded Systems

Mohammad A. Gowayyed

(c) 2012 Mohammad A. Gowayyed 2

Acknowledgment

• Some slides are taken from– Dr Moustafa Amin’s slides

(c) 2012 Mohammad A. Gowayyed 3

Embedded System

• What is an embedded system?

(c) 2012 Mohammad A. Gowayyed 4

Who builds Smart Cars?

• Mechanical and production engineers• Electrical engineers• Software engineers

(c) 2012 Mohammad A. Gowayyed 5

(c) 2012 Mohammad A. Gowayyed 6

(c) 2012 Mohammad A. Gowayyed 7

Toyota brakes problem

• A total of 133,000 Prius vehicles in the U.S. and 52,000 in Europe are to receive software update.

(c) 2012 Mohammad A. Gowayyed 8

Properties of Embedded Software

• Real time applications– Delay should be bounded

• Limited resources– Power– Memory– CPU

(c) 2012 Mohammad A. Gowayyed 9

Smart Phone

• What is a smart phone?– Phone– Computer - smart

• Allows for user programs– Calendar– Games

(c) 2012 Mohammad A. Gowayyed 10

Components of Mobile Ecosystem

• Network– GSM /CDMA – Slow– GPRS – Faster– UMTS (3G) -

• Handset– Hardware– OS

• Services– SMS– Bluetooth– Java

(c) 2012 Mohammad A. Gowayyed 11

Generations of Mobile Communication

• 0G• 1G• 2G• 2.5G• 3G• 4G

(c) 2012 Mohammad A. Gowayyed 12

Mobile Phone Evolution• 1986:

– Suitcase size– Battery 800g!

• 1990:– Halved in size– Again in 1994

• Future talking about embedding phones in body• 2000: Mobile phones outsold PCs for the first time (450 Millions vs 120

millions!)

• 2005: 200 millions per quarter!

• 2011: 427 millions only at 4Q11, total of 1,546 millions at 2011 and 5.9 billions mobile subscribers (87 % of the world population)

(c) 2012 Mohammad A. Gowayyed 13

Manufacturers

• Nokia• Samsung• Apple• Motorola

(c) 2012 Mohammad A. Gowayyed 14

Manufacturers market share

(c) 2012 Mohammad A. Gowayyed 15

Feature of Good OS

• Resource limited– Battery– Memory– CPU

• Robustness• User interface (for small screen)• Libraries• Development tools

(c) 2012 Mohammad A. Gowayyed 16

Available OS’s

• Symbian• Linux• Windows CE• Palm OS• Android• iPhone OS• Platforms– J2ME

(c) 2012 Mohammad A. Gowayyed 17

(c) 2012 Mohammad A. Gowayyed 18

(c) 2012 Mohammad A. Gowayyed 19

Your turn!

• Questions?• Suggestions?