Studymafia.org Embedded Systems

8/9/2019 Studymafia.org Embedded Systems

1/21

www.studymafia.org

Submitted To: Submitted By:

www.studymafia.org www.studymafia.org


2/21

What are embedded system Components

Comparison of Various Software

Architecture Application

Challenges

Embedded Software Development Tools

Application

Future Trends

Conclusion


3/21

An embedded system is a specialpurpose computer that is used insideof a device

A Combination of hardware andsoftware that forms the componentsof a larger systems


4/21

! Embedded hardware "#$t mainly consistsof a microcontroller with various

peripheral $C%s

& Embedded 'T(%S "#All intelligent devicesthat perform comple) functions have anembedded operating system inside

* Device drivers "#The software that acts asa glue between the operating system andthe peripheral device is called the devicedriver

+contd,


5/21


6/21

PRIORITIESAVAILABLE

WORST RESPONSE TIME

FOR TASK CODE

STABILITY OF

RESPONSE WHEN THE

CODE CHANGES

SIMPLICITY

ROUND ROBIN None Execution time for all the taskcode.

Poor. Very simple

ROUND ROBINWITH

INTERRUPTS

Interrupts routinesin priorityorder,then the taskcode in priorityorder.

Total of execution time for allthe task code (plus the executiontime for the interrupt routines).

Good for interrupt routines,poor for task code. Very simple.

FUNCTION QUEUE

SCHEDULING

Interrupts routinesin priorityorder,then all the

task at samepriority.

Execution time for the lonestfunction( plus execution time forthe interrupt routines).

!elati"ely ood. #ust deal $ith datashared %et$eeninterrupts routines

and task code.

REAL TIME

OPERATING

SYSTEMS

Interrupts routinesin priority order.

&ero (plus execution time forroutines).

Very ood. #ore complex.


7/21

' ' *I+E -E#+/ *I+E(T-!GET -E#+/

+-NG0-GE)

'!1

'1#PI+E!

'!1

-E#+E

!

12E'T *I+E

(#-/E -N/

*1!#-T)

12E'T *I+E

(#-/E -N/

*1!#-T)

+IN3E!4 +1'-T1!

E5E'0T-+E *I+E

(1* -N/ T-N6-!6

*1!#-T)

T-!GET

/TE#

TOOL CHAIN FOR EBE!!E! SOFT"ARE

7ost


8/21

Precise engineering and design. Low in cost. High performance. Careful selection of chips. Eciency.

In short, the challenge is to provideafordable, highly integrateddevices meeting stringentrequirements or saety, security,reliability, availability and at the

same time keeping the cost low.


9/21


10/21

EBE!!E! A##LICATIONS


11/21

Automatic teller machines. Cellular telephone and telephone

switches.

Handheld calculators. Household appliances including

washing machine, television sets,microwave ovens, etc.

Inertial guidance systems in aircraftand missiles,

(contd.)


12/21

ultifunction wristwatches.

edical e!uipment.

Programma"le digital assistants#P$A%s&.

easurement e!uipments li'e

oscilloscopes, logic analy(ers andspectrum analy(ers.

Programma"le logic controllers #PLC%s&.


13/21

EBE!!E!$LOBE


14/21


15/21

eMillennium is the public

communication for the 21st Century. Itoers superior multi-pay voice access incombination with powerful, yet user-friendly web applications.

Users can chec e-mail, !et stoc"uotes, mae on-line purchases, evencruise the Internet, all while talin! onthe phone.

# built-in $thernet data port providesthe additional option of hi!h-speed webaccess throu!h a laptop computer.

$%tensive testin! to meet &CC and C'#telecommunication re"uirements was

re"uired for this device.


16/21

(avi% has developed an ine%pensivetwo-way satellite communicationsystem speci)cally to support remotedata collection and e-mail services.

It is desi!ned as an economical, hi!h-throu!hput alternative to )ll theniche between low-cost, low-

throu!hput systems lie #r!os,*+$', and +rbcomm, and hi!h-cost,very hi!h-throu!hput systems lieInmarsat and Intelsat.

(avi% operates its 'atellite 'ystemin cooperation with olunteers in

echnical #ssistance and 'atIifenon-pro)t or!ani/ations providin!health and technolo!y support topeople in developin! countries.


17/21

Adaptive cruise control

)elemedicine

*ecurity)ele+matics

luetooth applications


18/21


19/21

)he world of em"edded systems is adreamer%s paradise with unlimitedpossi"ilities.

It ma'e controlling all the systems around-ust "y a simple gesture and the thingsrespond to you as if it was some magic.

As microprocessors are "ecoming smallerand cheaper, more and more products are"ecoming smart% with microprocessorsem"edded in them.


20/21


21/21

Documents

Studymafia.org Embedded Systems