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Harry Hsieh |
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Department of Computer Science and Engineering |
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University of California at Riverside |
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Class Meeting |
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SURGE 349 |
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TuTh 12:40PM-2PM |
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Prerequisite: |
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CS/EE 120A |
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consent of instructor |
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Course number: |
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16546 |
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4 units, grades only |
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No S/NC, P/NP,… |
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Harry Hsieh |
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www.cs.ucr.edu/~harry |
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harry@cs.ucr.edu |
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Office (787-2030) |
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SURGE 329, TuTh 2PM-3PM |
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Check www for cancellation |
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Also available |
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by appointment |
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immediately after class |
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Class Web Page |
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www.cs.ucr.edu/~harry/classes_files/cs269_Win02.html |
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Presentations & participation 45% |
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Present 3-4 technical papers per quarter |
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1.5-2 hour-long lecture per quarter |
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Read 3 technical papers per week on the average |
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Attend every class meeting |
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Sign up for 1st round of presentation
by Thursday, 1/10 !!! |
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Individual project 45% |
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List of projects provided |
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1-2 person per project team |
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Sign up by Thursday, 1/17 !!! |
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Quiz 10% |
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In-class |
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Open-everything |
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No human help whatsoever… |
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No homework, no exams, no texbook, no laboratory
exercise, no |
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What are Embedded Systems? |
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Computing systems embedded within larger devices |
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Repeatedly carry out a particular function |
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May not be recognized by the device’s users |
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Any computing system other than a desktop
computer |
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And the list goes on and on |
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Single-functioned |
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Executes a single program, repeatedly |
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Reactive and real-time |
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Continually reacts to changes in the system’s
environment |
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Must compute certain results in real-time
without delay |
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Tightly-constrained |
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Low cost, low power, small, fast, etc. |
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Solar Power |
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Thick Film Battery |
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2-way Communication |
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Laser |
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Light Sensing |
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Acceleration Sensing |
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Biometric authentication |
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Handwriting Recognition |
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Speed, angle, pressure |
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Stores up to 10 Pages |
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Radio transmission |
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Address book, planner, calculator |
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Receive/send e-mail |
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Contains ink, too… |
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$? |
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Self powered |
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Intellifiber |
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Convert mechanical energy to electrical energy |
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1ms timing constraints |
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Microchip |
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Integrated in racquet handle |
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Send out signal to stiffen the racquet |
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Reduce 50% of vibration |
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Reduce twice as fast |
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…So you can hit harder!!! |
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$300 |
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NY city marathon official time keeper |
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No chip, no count… |
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RFID technology from TI |
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Contain a chip and a coil |
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Self powered |
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60ms resolution |
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7 digit alphanumeric code |
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Multiple split time for everyone |
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Don’t cross finish line walking on your hands!!! |
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$30 |
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One single reversible stepper motor |
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A main PC board |
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Contain a few SSI chips, caps, resistors… |
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Pet sensors, inversion switch |
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Two daughter boards |
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Each with a blob |
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Contain CPU and stuff… |
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Pet switch, inversion switch, tummy switch,
tongue switch, light sensor, IR send/receive, speaker, motor |
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$20 |
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Optimal throttle and injector control |
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4-wheel independent steering |
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4-wheel independent breaking |
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Sensory systems for |
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Active Cruise Control |
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Autonomous automobile |
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What are Embedded Systems? |
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How did we get here? |
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1959, invention of IC (Kilby/Noyce) |
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Take the average, let’s say doubling every 18
months |
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By the year 2016, each high-end IC will have |
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9 billion transistors, 7100 pins, 22 nm feature
size, on-chip local clock of 29GHz, Vdd range 0.4V to 0.9 V,
power dissipation at 288 W. |
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4 million BC, “Lucy” has cranial size of 380 cc |
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What to do? |
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Give up! |
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Smaller die, fill chip up with memory… |
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Increase Productivity! |
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Raise the level of abstraction |
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Improvement in design technology |
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What are Embedded Systems? |
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How did we get here? |
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How do we keep going? |
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Want to design at higher level of abstraction |
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Look at the bigger picture |
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Not having to worry about little details |
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Enable by: |
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Compilation/Synthesis |
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Automates exploration & insertion of
implementation details for lower level |
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E.g. logic synthesis, software compiler, system
synthesis |
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Library/Intellectual Property |
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Incorporates pre-designed implementation from
low to higher level. |
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E.g. M-Core, ARM, Memory & Peripheral
controller |
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Test/Verification |
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Ensures correct functionality at each level, |
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Reducing costly iterations between levels. |
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E.g. simulation (RTL, behavior, HWSW), model
checking |
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Standards, Languages, Frameworks… |
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In the past: |
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Hardware and software design technologies were
very different |
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Recent maturation of synthesis enables a unified
view of hardware and software |
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Hardware/software “codesign” |
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The entire system must be designed as a whole |
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Hardware |
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Software |
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Interface |
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Memory |
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Peripheral |
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Notes