Embedded systems introduction
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The document is an introduction to embedded systems, defining them as combinations of hardware and software dedicated to specific applications. It discusses real-time systems, types of embedded systems, and the importance of operating systems tailored for embedded applications. Additionally, it highlights various examples, classifications, and programming languages used in embedded systems development.
![List of OS for Embedded Systems
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Symbian OS
iOS (a subset of Mac OS X)
Embedded Linux
â Maemo based on Debian deployed on Nokia's Nokia 770, N800 and N810 Internet Tablets.
â MeeGo merger of M
â oblin and Maemo
â webOS from Palm, Inc., later Hewlett-Packard via acquisition, and most recently at LG Electronics through
acquisition from Hewlett-Packard[4]
â OpenZaurus
â Ă
ngstrĂśm distribution
â Familiar Linux
â Android
Inferno (distributed OS originally from Bell Labs)
PenPoint OS
PEN/GEOS on HP OmniGo 100 and 120
PVOS
Palm OS from Palm, Inc; now spun off as PalmSource
Windows CE, from Microsoft
â Pocket PC from Microsoft, a variant of Windows CE.
â Windows Mobile from Microsoft, a variant of Windows CE.
â Windows Phone from Microsoft,
DIP DOS on Atari Portfolio
MS-DOS on Poqet PC, HP 95LX, HP 100LX, HP 200LX, HP 1000CX, HP OmniGo 700LX
Newton OS on Apple Newton Messagepad
Magic Cap
NetBSD
Plan 9 from Bell Labs
Discovery Embedded
26
By:Sagar Patel](https://image.slidesharecdn.com/embeddedsystemsintroduction-140107041349-phpapp01/85/Embedded-systems-introduction-26-320.jpg)
Embedded systems introduction
- 1. EMBEDDED SYSTEMS INTRODUCTION Discovery Embedded 1 By:Sagar Patel
- 2. OUT LINE ⢠Embedded Systems. ⢠Real time Systems. ⢠Operating Systems. Discovery Embedded 2 By:Sagar Patel
- 3. Embedded System ⢠An embedded system is combination of computer hardware and software which is dedicated to particular application or product. Embedded system is embedded as a subsystem in a larger system which may or may not be a computer system. ⢠âEmbedded Systems are the electronics systems that contain a microprocessor or a Mu,but we do not think as computers-the computer is hidden or embedded in the systems.â Discovery Embedded 3 By:Sagar Patel
- 4. Some Interesting Examples of Embedded systems: Discovery Embedded 4 By:Sagar Patel
- 5. Product: Sonicare Elite toothbrush. Microprocessor:8-bit Has a Programmable Speed Control ,Timer &charge gauge. Discovery Embedded By:Sagar Patel 5
- 6. Product: vendo vue 40vending machine Microprocessor: Two 16-bir Hitachi H8/300H Processors A robot hand dispenses items Discovery Embedded By:Sagar Patel 6
- 7. Product: NASA's Twin Mars Rovers. Microprocessor: Radiation Hardened 20Mhz Power Pc. Commercial Real-Time OS Software and OS was developed during Flight To mars and Downloaded using a Radio link. Discovery Embedded 7 By:Sagar Patel
- 8. Product:Rsdiant systems Point-ofsale(POS)Terminal Microprocessor: Intel X86 Celeron Os:windows XP Embedded Discovery Embedded 8 By:Sagar Patel
- 9. Product: Dresser Wayne Ovation iX Gas Pump. Microprocessor: Marvel Xscale (ARM) Os: Windows CE Display video ads & is networked to gas station's back office computer systemes.also has remote maintenance features. Discovery Embedded 9 By:Sagar Patel
- 10. Product: Bernina Artista 200 Sewing Machine Microprocessor: Marvel Strong (ARM) Os:windows CE Can Download New images from the internet and sew them. Discovery Embedded 10 By:Sagar Patel
- 11. Itâs Different ⢠Single âfunctioned -Executes a Signal Program ,Repeatedly ⢠Tightly-Constrained -Low Cost,Memory,etc.. -small Size(bytes) ⢠Low Power -Battery Power Devices -Increases systems cost in wall powered devices Discovery Embedded 11 By:Sagar Patel
- 12. Itâs Different ⢠Dedicated Systems -Predefined functionality -Programmability rarely used ⢠Reactive -Continually reacts to change in the systemâs Environment. Discovery Embedded 12 By:Sagar Patel
- 14. What is a Real-Time Systems? ⢠A System is called real-time: -whenever we need to quantitatively express in order to describe its behavior. - After temperature exceeds 500 degrees coolant shower must start within 100m sec. ⢠characteristics: -Every real-time task is associated with some time constraints, Deadline. -Logical correctness of results and time at which they are produced. Discovery Embedded 14 By:Sagar Patel
- 15. Types Of Real-Time Systems ⢠A tasks have deadlines associated with them. ⢠A classification based on consequence of a failure: -Hard real-time systems. -Soft real-time systems. -Firm real-time systems. Discovery Embedded 15 By:Sagar Patel
- 16. Hard Real-Time systems ⢠If a deadline is not met: -The systems is said to have failed. ⢠Many hard real-time system are safety-critical -Failure can cause severe damage(loss of life) -No fail-safe state. - Safety though increased reliability ⢠Examples: -Atomic Reactor Control -Aircraft control -Medical Equipments Discovery Embedded 16 By:Sagar Patel
- 17. Firm real-time systems ⢠It define is missed occasionally -systems dose not fail -result produced by task after deadline are rejected. - âLate answer are wrong answer.â Examples: -video played on computer. Discovery Embedded 17 By:Sagar Patel
- 18. Soft Real-time systems ⢠The usefulness of a result degrades after its deadline, thereby degrading the system's quality of service. ⢠Soft real-time systems are typically used where there is some issue of concurrent access and the need to keep a number of connected systems up to date with changing situations. Examples: - software that maintains and updates the flight plans for commercial airliners. Discovery Embedded 18 By:Sagar Patel
- 19. Introduction to Embedded System I/O Architectures Discovery Embedded 19 By:Sagar Patel
- 22. Other Classification of ES ⢠Small Scale Embedded Systems. â Use single 8 bit or 16 bit microcontroller â Little hardware and software complexity â Embedded software IDE is specific to processor â Software has to fit in given memory â Power consumption is limited 22
- 23. Medium scale embedded system â Single or few 16 bit, 32 bit microprocessor â DSP or ARM is used â Both hardware and software complexities â C,C++, Visual C++, Java is popular for prog. 23
- 24. Large scale embedded system â Enormous hardware and software complexities â Several processors/controllers are used â FPGA, DSP, DSC, IP core on VLSI chip, ASIC is used â Hardware software or operating systems codesign is required â Some critical functions are implemented in the hardware (instead of software) to achieve speed â Development tools available are costly â Needs team work for development Discovery Embedded 24 By:Sagar Patel
- 25. Operating Systems For Embedded ⢠Many of the components of the embedded systems are integrated on to a single chip. This concept is known as System on Chip (SOC) design. Examples : 8051 projects, PIC uc based projects. Discovery Embedded 25 By:Sagar Patel
- 26. List of OS for Embedded Systems ⢠⢠⢠⢠⢠⢠⢠⢠⢠⢠⢠⢠⢠⢠⢠Symbian OS iOS (a subset of Mac OS X) Embedded Linux â Maemo based on Debian deployed on Nokia's Nokia 770, N800 and N810 Internet Tablets. â MeeGo merger of M â oblin and Maemo â webOS from Palm, Inc., later Hewlett-Packard via acquisition, and most recently at LG Electronics through acquisition from Hewlett-Packard[4] â OpenZaurus â Ă ngstrĂśm distribution â Familiar Linux â Android Inferno (distributed OS originally from Bell Labs) PenPoint OS PEN/GEOS on HP OmniGo 100 and 120 PVOS Palm OS from Palm, Inc; now spun off as PalmSource Windows CE, from Microsoft â Pocket PC from Microsoft, a variant of Windows CE. â Windows Mobile from Microsoft, a variant of Windows CE. â Windows Phone from Microsoft, DIP DOS on Atari Portfolio MS-DOS on Poqet PC, HP 95LX, HP 100LX, HP 200LX, HP 1000CX, HP OmniGo 700LX Newton OS on Apple Newton Messagepad Magic Cap NetBSD Plan 9 from Bell Labs Discovery Embedded 26 By:Sagar Patel
- 27. Why an OS at all? ⢠Same reasons why we need one for a traditional computer. ⢠Not all services are needed for any device. Large variety of requirements and environments: â˘Critical applications with high functionality (medical application, space shuttle,..) â˘Critical applications with small functionality (ABS, pace markerâŚ) â˘Not very critical applications with varying functionality (PDA,Phone,Smart Card microwave often, âŚ) 27
- 28. Why is a desktop OS not suited? ⢠Monolithic kernel is too feature reach. ⢠Monolithic kernel is not modular, fault-tolerant, configurable, modifiable, ⌠. ⢠Takes too much space. ⢠Not power optimized. ⢠Not designed for mission-critical applications. Discovery Embedded 28 By:Sagar Patel
- 29. ⢠Windows XP Embedded. 29
- 30. Windows 7 Embedded Discovery Embedded 30 By:Sagar Patel
- 32. QNX 4 RIOS ⢠The QNX 4 RTOS is developed by QNX Software Systems Ltd. for the applications in consumer electronics, telecommunications, automotive systems, medical instrumentation which need high reliability, superior performance, sophisticated functionality, and massive scalability. ⢠PlatformsIntel 8088, x86, MIPS, PowerPC, SH4,ARM, StrongARM, Xscale ⢠A number of design innovations were developed for QNX 4 RTOS to deliver the full performance of the hardware. Discovery Embedded 32 By:Sagar Patel
- 33. QNX 4 RIOS Discovery Embedded 33 By:Sagar Patel
- 34. Embedded Linux ⢠Linux has become popular on embedded devicesâespecially consumer gadgets, telecom routers and switches, Internet appliances and automotive applications. ⢠It is easy to slim down the operating environment by removing utility programs, tools, and other system services that are not needed in an embedded environment. ⢠It is more encouraging that the Linux code is widely available portable to any processor. ⢠Linux doesn't require the user to pay license fees or royaltiesâ particularly important to developers of consumer electronics, who have narrow margins. Discovery Embedded 34 By:Sagar Patel
- 36. Windows CE ⢠Windows CE is first introduced in the Handheld PC (H/PC) set of products in November 1996. ⢠Microsoft Windows CE (now officially known as Windows Embedded Compact and previously also known as Windows Embedded CE ⢠Several advantages for Windows CE includes a subset of the Win32, low overhead device driver model and built-in power management. ⢠The application of Windows CE includes consumer electronics like handheld PC, Auto PC, video game player and digital camera, and industrial products like barcode reader and programmable logic controllers. Discovery Embedded 36 By:Sagar Patel
- 38. Programming language in embedded ⢠⢠⢠⢠⢠Assembly. Embedded C. Embedded Bascom Java Embedded Pascal Discovery Embedded 38 By:Sagar Patel