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How to Succeed in Life – The micro way

Program lots of functions into it. Sell it for Megabucks. Lose it all in the Market. How to Succeed in Life – The micro way. Take a microprocessor/ microcontroller chip. Build an small but cool system. Add support chips. General Purpose Computers.

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How to Succeed in Life – The micro way

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  1. Program lots offunctions into it Sell it for Megabucks Lose it all in theMarket How to Succeed in Life – The micro way Take a microprocessor/microcontroller chip Build an small but cool system Add supportchips

  2. General Purpose Computers • Microcomputers are computers based on microprocessors • General purpose microcomputers • PC’s, Macs, Tablets etc. • Generally require a large amount ofsupport circuitry • Memory, communications, I/O, keyboard,display...

  3. Address Bus Data Bus Control Bus Serial Interface Disk Controller Video Memory Parallel Interface Real-time Clock Keyboard/MouseController ... Disk Interface Video Display Controller Inside a General Purpose Computer PCIBusBridge PCI ExpBusBridge Clock,Resetcircuitry ROM CPU RAM PCI Bus

  4. Does One Size Fit All? • Advantages of a general-purpose computer • Flexible - can run lots of programs and interface with lots of devices • Expandable - can be updated with new hardware • Cost-effective - the cost of adding a new program is small • Economy of scale - millions are being produced… • Disadvantages • Must be a “super” system, capable of running any program • High price • Relatively large, short battery life

  5. Microcontroller Systems • Microcontroller Systems are small, special-purpose computer systems • Toaster control systems • Handheld electronics • Toys • Test equipment • Only the necessary parts are included • Cheaper, smaller • Simpler --> more reliable?

  6. A Problem needing a Solution

  7. Needs of Typical Microcontroller Systems • Consider the following embedded systems: • Intelligent thermostat • Blood Glucose Meter • RC helicopter • Automobile System Controller • Single-purpose • Small • Inexpensive • Reduced computation needs • Special interfaces • Lightweight (often hand held)

  8. Building small using Microprocessors? • What does it take to build a blood glucose meter using a typical microprocessor? • 1 CPU • Dynamic RAM, controller (about 20 chips) • ROM (one or two chips) for program • Real-time clock • LCD panel • Serial interface ports, drivers • A/D Converter • Random support chips (five or six chips) • This is going to take around 40 chips, use 50 W, and cost $500.

  9. Building small using Microcontrollers • A Microcontroller is a small CPU with many support devices built into the chip • Small CPU (8- or 16-bit, 4-32 MHz) • ROM (8-64 KB) • RAM (About 256 bytes), EEPROM (About 512 Bytes) • Parallel ports • Serial ports • A/D Converter • Timer • Typically, a microcontroller uses little power and costs $0.50 to $5.00.

  10. A Generic Microcontroller FlashEEROM2KB – 256KB RAM256B – 16KB Timer16-32 Bit Small CPU Core8-16 Bits 2-32 MHz2-16 Registers ADC8-14 Bits RS232/USB GPIO I2C/SPI Memory Bus16-24 Bits

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