1 lecture 1 - introduction ice 1222-2342 microprocessor + lab. 2008 fall daeyoung kim school of...
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Lecture 1 - Introduction
ICE 1222-2342 Microprocessor + Lab.
2008 Fall
Daeyoung Kim
School of EngineeringInformation & Communications University
[email protected]://resl.icu.ac.kr
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Course Introduction - I ICE 1222 / 2342 – Microprocessor + Lab.
Undergraduate course for CSE & ECE students ARM Microprocessors – Regular Class
ARM Architecture, Assembly Language Programming
Instruction Set, ARM Processor/CPU Cores Memory Hierarchy Architectural Support for
High-level languages, System Development, Operating Systems
Embedded Systems Development
ARM based Embedded Systems and Software - Laboratory
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Course Introduction - II
Instructor Daeyoung Kim
Phone) 866-6157 E-mail) [email protected]
Office : T329
TA
Seonghoon Kim Office: T326 E-mail: [email protected]
Jong-uk Lee Office: T326 E-mail: [email protected]
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Course Introduction - III
Course Materials Required Textbook :
ARM System-on-Chip Architecture (2nd Edition). by Stephen B. Furber
Reference Materials :
ARM Architecture Reference Manual (2nd Edition) by Dave Jagger, David Seal (Editor)
EMPOS II Manual/Teaching Material – Hanback Electronics
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Course Introduction - IV Course Homepage
http://resl.icu.ac.kr/~kimd/class/ice1222-2342-2008f/ICE1222-2342.htm
Time and Place Class
Mon 14:30-15:45 at L301 Fri 09:00-10:15 at L301
Laboratory Wed 7:00PM-9:00PM (Lab.) – L508
Academic Integrity Cheating homework, project -> zero score for both parties
Late policy No late submission except for emergency situation
Basic grading policy A : 50%, B : 30%, C : 20%
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PDA Reference Platform – EMPOS-II
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Lab Scheule
Week Topic
1 Course Introduction
2 Development Environment setup
3 Bootloader
4 Linux Kernel
5 File system
6 Write Embedded Linux Application
7 (2008/10/13) Midterm exam period
8 Web server porting
9 Device Driver
10 QT/E Environment
11 QTOPIA
12 Project
13 (2008/12/8) Final exam period
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Embedded Systems & Microprocessors
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Embedded Systems
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Definition of Embedded Systems
An embedded system is a device that includes a programmable computer but is not itself a general-purpose computer.
An embedded system is usually only designed for one single purposecan be highly optimizedAll unneeded features are a disadvantage (cost, power)
Source: Wolf 2000,© 2000 Morgan Kaufman
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Typical Embedded System
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Embedded Systems – Play Station 3
• 7 Cell processors 3.2 GHz each [originally spec = 9]
• Graphics: Nvidia RSX 550 Mhz GPU 1.8 TFlops – 100 billion shader ops/sec – 300 million transitors – 51 billion dot products/sec – Full HD – 1080p
• Total 2.18 Tflops
• 512MB RAM – split between CPU and graphics – 25.6GB/s
• 512KB L2 cache
• 7 AltiVec vector processing units
• Blu-ray DVD [25GB]
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Embedded Systems – Nintendo Wii
- CPUPowerPC based "Broadway" processor (729Mhz)- GPUATI "Hollywood" processor (243Mhz)- Memory88mb main memory, 64mb ext. RAM- Ports1..4 Wiimotes (BT), SD card slot, 2x USB 2.0,4x GCN, 2x GCN MC, WiFi 802.11b/g- Storage512mb built-in flash memory, supports 2gbSD, GCN MC, slot-loading disc- VideoUp to 480p (PAL/NTSC) or 576i (PAL/SECAM),Component, Scart, S-Video, Composite, 16:9- AudioStereo – Dolby Pro Logic II-capable, built-inspeaker in Wiimote
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IBM Power Architecture
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IBM Power Processor usages
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IBM Power Architecture
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Embedded Systems -- Examples
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NASA Pathfinder
(mission to MAR 1997)
Embedded Systems -- Examples
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How to design embedded systems?
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Abstraction Levels
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Abstraction Levels
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Abstraction Levels
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Abstraction Levels
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Embedded System & Embedded Linux
Embedded System - information processing is embedded in a larger system in which information processing is not visible to the user through PC-like interfaces
Features:
reliable, safe, and secure, efficientmostly fixed set of applications systems frequently reading, processing and controlling physical quantities
Embedded Linux Linux kernel runs on a particular CPU and board which will be
put into an embedded device
Real-Time System - must guarantee real-time constraints
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Real-Time Systems - 1 Often used in a dedicated application such as aircraft
avionics systems, automobile control, weapon systems, medical systems, industrial control systems, and etc.
Well-defined timing constraints. Timing correctness as well as functional correctness
Real-Time systems may be either hard or soft real-time.
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Real-Time Systems - 2
Hard real-time: Missing timing constraints -> catastrophic result Secondary storage limited or absent, data stored in short
term memory, or read-only memory (ROM) Conflicts with time-sharing systems, not supported by
general-purpose operating systems.
Soft real-time Missing timing constraints -> inconvenience, performance
degradation (best effort to meet timing constraint) Useful in applications (multimedia, virtual reality)
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Reasons for large processor variety - 1
• Processors inserted into the veins of the human body to compute averaged time series of sensor values: low performance requirements, must be power- and area-efficient.
• Processors in automobile electronics: must be able to sustain high voltages (100+ volts) and must be cheap.
• Processors in portable phones: must be very power efficient.
Large variety of applications
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Reasons for large processor variety - 2
Embedded processors exhibit features making them efficient for certain applications or application domains
Large variety of processors inembedded systems
• ... due to focus on efficiency• ... due to application domain• ... no need for code compatibility• ... in order to protect company IP• ... in order to reduce power consumption
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Architectural features of embedded processors
General rules (with exceptions):
1. Designed for efficiency (vs. ease of programming)2. Huge variety of processors (resulting from 1.)3. Harvard architecture4. Heterogeneous register sets5. Limited instruction-level parallelism or VLIW ISA6. Different operation modes (saturating arithmetic, fixed point)7. Specialised microcontroller & DSP instructions (bit-field addressing, multiply/accumulate, bit-reversal, modulo addressing)8. Multiple memory banks9. No “fat” (MMU, caches, memory protection, target buffers, complex pipeline logic, ...)
These features have to be known to the compiler!
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Harvard architecture
CPU
PCdata memory
program memory
address
data
address
data
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von Neumann vs. Harvard
Harvard can’t use self-modifying code.
Harvard allows two simultaneous memory fetches.
Most DSPs use Harvard architecture for streaming data: greater memory bandwidth; more predictable bandwidth.
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Popular Microprocessors
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Microcontrollers
Microcontroller including a CPU, memory,
a clock oscillator, and I/O
on a single IC.
Microprocessor Some elements such as
memory, or I/O are missing
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ATMEL ATMEGA 128(L) Microcontroller
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ATMEL ATMEGA 128(L)
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TI MSP430 Microcontrollers
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TI MSP430 Microcontrollers
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Freescale(Motorola) – 8-bit Microcontrollers roadmap - 1
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Freescale(Motorola) – 8-bit Microcontrollers roadmap - 2
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Freescale(Motorola) – 8-bit Microcontrollers roadmap - 3
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Freescale(Motorola) – 16-bit Microcontrollers roadmap
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ARM Architecture Roadmap - 1
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ARM Architecture Roadmap - 2
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Why ARM?
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ARM Core Selection Guide - 1
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ARM Core Selection Guide - 2
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Compaq iPAQ H3600
SA-1110
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SA-1110 Block DiagramARM+DEC -> Intel
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SA-1111 Block Diagram
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SA-1110/SA-1111 System Example
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Intel Xscale – PXA255
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Intel Xscale – PXA270 for Embedded Computing
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Modem Chip Evolution for Cellular Phone
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Mobile Station HW - Base band
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Mobile Station SW Architecture
Applications (GVM, Wavelet, M-Commerce, LBS..)
Applications (GVM, Wavelet, M-Commerce, LBS..)
Radio Telephony Device Control (CDMA/GSM/GPRS/WCDMA)
Radio Telephony Device Control (CDMA/GSM/GPRS/WCDMA)
APP ManagerAPP Manager ProtocolStack
ProtocolStack
Radio Comm. Interface
Radio Comm. Interface
I/O Device Driver(HW Abstraction Layer)
I/O Device Driver(HW Abstraction Layer)
Embedded OS (REX, VxWorks, Symbian)Embedded OS (REX, VxWorks, Symbian)
Mobile PlatformMobile Platform T-APIsT-APIsG-APIsG-APIs
WAPBrowser
WAPBrowser
Embedded HWEmbedded HW
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I/O Device Drivers
Keypad Touchpad Voice Recognition LCD Sound Speech Synthesis Light IrDA USB UART Bluetooth
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Embedded SystemsDevelopment Environment