Embedded SystemIntroduction
What is an embedded system? Embedded systems (ES) = information processing systems embedded into a larger product
An embedded system is a computerdesigned for specific controlfunctions within alarger System.It is embedded as a part of a...
Embedded Systems Model What the Embedded Systems Model indicates  is that all embedded systems share one  simi-larity at ...
Embedded Systems Design When approaching embedded systems architecture design,    several models can be applied to descri...
Characteristics of Embedded Systems Must be dependable,    • Reliability R(t) = probability of system working      correc...
Must be efficient   –Energy efficient   –Code-size efficient   (especially for systems on a chip)   –Run-time efficient  ...
Thk
Embedded systems
Embedded systems
Upcoming SlideShare
Loading in...5
×

Embedded systems

752

Published on

Published in: Technology, Business
0 Comments
0 Likes
Statistics
Notes
  • Be the first to comment

  • Be the first to like this

No Downloads
Views
Total Views
752
On Slideshare
0
From Embeds
0
Number of Embeds
0
Actions
Shares
0
Downloads
38
Comments
0
Likes
0
Embeds 0
No embeds

No notes for slide

Embedded systems

  1. 1. Embedded SystemIntroduction
  2. 2. What is an embedded system? Embedded systems (ES) = information processing systems embedded into a larger product
  3. 3. An embedded system is a computerdesigned for specific controlfunctions within alarger System.It is embedded as a part of a completeoften including hardware andmechnical part.Embedded system contain processingcores that are typically either Micro-controllers or digital signal processors.
  4. 4. Embedded Systems Model What the Embedded Systems Model indicates is that all embedded systems share one simi-larity at the highest level; that is, they all have at least one layer (hardware) or all layers (hardware, system software and application software) into which all components fall. The hardware layer contains all the major physical components located on an embedded board, whereas the system and application software layers contain all of the software located on and being processed by the embedded system.
  5. 5. Embedded Systems Design When approaching embedded systems architecture design, several models can be applied to describe the cycle of embedded system design. The big-bang model: there is essentially no planning or processes in place before and during the development of a system. The code-and-fix model: product requirements are defined but no formal processes are in place before the start of development. The waterfall model: there is a process for developing a system in steps, where results of one step flow into the next step. The spiral model: there is a process for developing a system in steps, and throughout the various steps, feedback is obtained and incorporated back into the process.
  6. 6. Characteristics of Embedded Systems Must be dependable, • Reliability R(t) = probability of system working correctly provided that is was working at t=0 • Maintainability M(d) = probability of system working correctly d time units after error occurred. • Availability A(t): probability of system working at time t • Safety: no harm to be caused • Security: confidential and authentic communication Even perfectly designed systems can fail if the assumptions about the workload and possible errors turn out to be wrong. Making the system dependable must not be an after-thought, it must be considered from the very beginning
  7. 7. Must be efficient –Energy efficient –Code-size efficient (especially for systems on a chip) –Run-time efficient –Weight efficient –Cost efficientDedicated towards a certain applicationKnowledge about behavior at design time can be used tominimize resources and to maximize robustnessDedicated user interface(no mouse, keyboard and screen)Hybrid systems (analog + digital parts).
  8. 8. Thk
  1. A particular slide catching your eye?

    Clipping is a handy way to collect important slides you want to go back to later.

×