Embedded System

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Embedded System

• ???2006.10.14

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Contents

• Embedded System
• ARM Architecture
• Embedded Hardware
• Embedded Software

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Embedded System

• ????? ?????? ???? ??? ??? ???? ???
• ??? ??? ????? ???? ????? ??? ??? ????, ?? ???? ??
  ????? ???? ?? ??? ?????? ???? ?? ????, ????, ????
  ?? ???

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Embedded System? ??

• ???? ??
• ??, ??, ???
• ??? ??
• ???? ???? ??.
• Real-time ??? ??? ?? ???? ??.
• ( Real-Time ??? ??? ?? ??? ???? ???? ???)

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Embedded System ??

• Embedded System ??

H/W
S/W
????
OS??
?????
??? ?????
?????
?? ?????
Embedded System
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Processor

• Processor ?? CPU? ??? ???? ??????
• ????? ??????? ?? ????, ????, ??? ??, ??, ??, ????
  ?? ?? ??? ???, ?? ??? ??? ????.
• ????, ????, ????? ?????? ????.
• ???? SoC? ??????.

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Processor ? ??

• i386
• intel?? ?? embedded?
• PC? ?? ??? ??.
• ARM
• ??? ??? ????, ????? ????
• ?? ??? ??? ????? PDA?? ?? ???? ?? ??

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Processor? ??

• M68K
• ???? ?? ? ?? ????? ?? ??
• MIPS
• ??? ?? ??
• ?? ???? ???? ?? ??

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? ? ??? ??(1)

• Register, Cache
• ???????? (Arithmetic Logic Unit)
• ???? (Control Unit)
• BUS (internal bus, external bus)
• Pipeline
• ???(machine language)? ?????(Assembly language)
• ?????(Mnemonic code)

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? ? ??? ??(2)

• Assembler, Assemble
• Instruction
• ??? SET
• CISC (Complex Instruction Set Computer)
• SISC (Reduced Instruction Set Computer)
• EISC (Extensible Instruction Set Computer)
• ? ???(Von-Neumann) ????
• Havard ????
• MMU(Memory Management Units)

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ARM Architecture? ??
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ARM? 32?? RISC ????

• ARM?? ?????? ???? ?????? ??? ??? ????? ??? ???
  Hard Macrocell ?? Synthesizable core? ??
• ??? ???? ?? SoC ?????? ARM core? ????? ????
  SoC(System on Chip)? ??? ????? ????? ?? ???? ??

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ARM Architecture

• ARM Architecture
• - ARM core? ????? ??? ??, ?? ?? ???? ???,
  ???? ??, ???? ?? ?? ???? ?? ? ?? ??
• ARM Architecture? ??
• - v4, v4T, v5TE, v5TEJ, v6 ?

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ARM Architecture? ??(1)

• 32bit RISC Architecture
• ???? Internal register? 32bit? ??
• CISC? ?? ??? ??? ???? ??? ?? ?? ?? ??? ???? ???
  ??
• ????? ??? ??? ??
• 32bit ARM ??? 16bit Thumb??? ??
• Jazelle core? ??? ?? 8bit Java byte ??? ????

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ARM Architecture? ??(2)

• Big/Little Endia ??
• Endian ??
• Endian? ???? ?? ???? ??? ??? ? ?? ??? ? ?? ????
  ??? ???? ??
• Little-Endian ?????? ??????? ??
• Big-Endian ?????? ??????? ??
• ARM? Big-Endian? Little-Endian? ?? ????

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ARM Architecture? ??(3)

• Fast interrupt ??
• ?? ???? ??? ?? ??? fast ???? ?? ??
• ARM? fast ????? ?? ??? ????? ??? ?? ???
  ??(Interrupt Service Routine)? ??? ? ????? ????
  ???? ??? ?? ? ??.

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ARM core

• ARM core ?? ARM processor core
• - ARM Architecture? ?? ??? ???? ??? ????? ????
• ARM processor core? ??
• - ARM7TDMI , ARM9TDMI
• - ARM9E, ARM10E
• - ARM11

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MSM RoadMap
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Embeded Hardware
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Embedded Software
.axf
Transfer (fromelf, objcopy)
???? (ELF/DWARF2)
Binary File (ROM Format)
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Embedded Software
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?? ? QA