EE345M Microcomputer Interfacing Lab Spring 2001
Class: ENS115 Monday, Wednesday 9 to 9:50am
Office Hours: Office Hours Mon. 10-11am, Wed. 12-1pm, Fri. 9 am to 11am
Instructor: Jonathan W. Valvano, ENS617A, 471-5141, Lab ENS619/621 (1-1216)
email valvano@uts.cc.utexas.edu
fax 471-0616
Web page http://www.ece.utexas.edu/~valvano
Unique Numbers: 14610 Tue 9-12, 14615 Tue 7-10, 14620 Thur 7-10
EE345L and EE345M TAs:
        Hyunjin Shin <hjshin@ece.utexas.edu> Tue 9am-12noon, Tue 7-10 pm
        Anand Rajan <arajan@ece.utexas.edu> Wed 12-3pm, Thur 7-10pm
        Preetha Parthasarathy <preetha@mail.utexas.edu> Wed 3-5:30pm, Thu 3-6pm
        Chia-ling Wei <clwei@mail.utexas.edu> Tue 9am-12noon, Wed 7-10pm
Handout: Motorola CPU12 Reference Manual,
   The 6812 Technical Summary is available as a pdf file on the lab network and on the CD
Text: Embedded Microcomputer Systems, Brooks-Cole 2000, by J.W. Valvano
IEEE Parts: any TTL Data Book includes either LSTTL or HC parts
   1 prototype board per student (2 per group)
   Lab supplies: resistors, 3.5 inch floppy disks, lock for 2^nd floor locker
HKN: Spring 2001 EE345M Laboratory Manual by J.W. Valvano
Other references: For programming in C and op amps, see the EE360C and EE338K texts
   Also see Kelly/Pohl, A Book on C, Benjamin Cumming Publishing
Prerequisites: EE345L or EE345S, EE338K, and EE155. There will be no re-tests, make-ups, or incompletes.
Specific Objectives of EE345M
Review of 6812 architecture, and C programming
Synchronization methods
    Gadfly, interrupt, DMA, periodic polling, priority interrupts
Real time operating systems
    Foreground and background thread scheduling
    Synchronization using spinlock and blocking semaphores
    Interthread communication, networks
Digital Device Interfaces
    Diodes, transistors, DC motors, servos, stepper motors, relays, solenoids,
    Optical sensors and optical isolation
Time Domain Interfaces
    Input capture/output compare, frequency, period and pulse width measurements,
    Pulse-width modulation
Data Acquisition Systems
    Op amp amplifiers, analog filters, DAC, ADC
    Thread scheduling, digital filters
Control systems
    Open loop and closed loop, Linear and Nonlinear,
    Bang-bang, incremental, PID, Fuzzy Logic Control
Review of Microcomputer Bus Interfaces
    Timing equations, timing diagrams,
    Address translation and extended mode
Attendance: Students are expected to attend lectures. The book covers more information than the class and we will use lectures to map our way through the book. If you miss class you may find it difficult to catch up.
Grading: 40% Laboratory
        15% In class Quiz1, Wednesday, February 28, 9:00 am to 9:50 am, in regular class room
        15% In class Quiz2, Wednesday, April 4, 9:00 am to 9:50 am, in regular class room
        30% Final, Saturday, May 12, 2-5pm, regularly scheduled
Your grade will be assigned on the usual 60, 70, 80, 90 basis. An average above 70 is required to receive a credit (CR/NR).
Lab Partners: All labs should be performed with a partner. The lab partnership must be registered with the TA (a simple hand written note signed by both students will suffice) at least a week before the assignment is due. Once registered, the partnership will continue. A partnership can be dissolved only after discussion with the TA. Both partners must be present during the demonstration. It is expected that both partners will contribute to all aspects of each lab, and both partners are expected to be present during the check out. The point values are the same for all labs. The TA will sign your software listing when you demonstrate your system. All parts of the assignment must be demonstrated to a TA by the end of your lab period the week shown in the column labeled "Demo/Report". The report (hardware/software/data plots) are due one day after the demonstration is due. Please consult with your TA for specific due dates for your lab section.
EE345M Laboratories
13. Real time debugging (1 week)
14. Optical isolation, pulse width modulated squarewave generation, motor interface (1 week)
15. Period measurement of a DC motor tachometer (1 week)
16b. IR Remote Control (TExaS simulator) (1 week)
17b. Real time operating system (2 weeks) (handout, not in lab manual)
11b. BSC Network (1 week) (handout, not in lab manual)
21. Digital to analog conversion, sine wave generation (1 week)
22. Temperature data acquisition, analog amp, analog filter, and digital filter (2 weeks)
23 or 24 or 25. Embedded System (2 weeks)
    23. PID or fuzzy logic motor control, pulse width modulation, period measurement
    24. Line tracking robot
    25. Solid state secondary storage (handout, not in lab manual)
EE345M Laboratory Schedule (see your TA for the latest)

    You have the option of proposing an alternative last lab involving any topic introduced in EE345L or EE345M, forming groups of ranging from 2 to 4 students. These groups may include students from other lab sections. Please get your TA approval by 11/1, if you choose to define your own last lab. Otherwise, we expect you to do Lab 23, 24 or 25 as a group of 2 as specified in the lab manual.
During the week of January 22, please go to your regularly scheduled lab in ENS252C to hear a TA explain the lab grading policy. If you miss your section, go to one of the other sessions. ImageCraft Adapt812 boards will be passed out and lab partners will be selected in your lab the week of January 22-26. The Lab 13 preparation is due at the beginning of your lab the week of January 29-February 2. Preparation includes hardware wiring diagrams and syntax-free assembly printouts. In other words, please type your software into the PC before lab. The lab preparations (hardware diagrams and syntax-free software source code printouts) are due at the beginning of your lab period. Attendance in lab is required. All software for lab, and tests must include comments. All hardware must include R&C values specifying tolerance and type (e.g., 5% carbon), and TTL chip numbers (be very specific e.g., 74LS00). Pin numbers are required only for lab.
Students are encouraged to go to the last 2 hours of the other lab periods (including when EE345L labs are scheduled), but the first priority will be to the regular students. Because of the lab quiz, the first hour of lab is restricted to the regular students. CLEAR OUT BY 15 minutes before the start of lab. At the end of the semester please verify with the checkout counter that your record is clear. All reports must be given to the TA by Friday May 4, 12 noon..

Legal Stuff: Drop date is January 31. After this date, I will sign a drop only if the Dean approves it. Your current grade status must be a "C" or better for you to receive a "Q". Course evaluation is conducted on the last class day in accordance with the Measurement and Evaluation Center form. The final exam is at the time and place stated in the course schedule. The University of Texas at Austin provides upon request appropriate academic adjustments for qualified students with disabilities. For more information, contact the Office of the Dean of Students with Disabilities at 471-6259, 471-4241 TDD.
Cheating: Cheating is very uncivilized behavior and is to be avoided at all cost. You are allowed to talk to your classmates about the lab assignments, but you are NOT allowed to look at each other’s written work. Oral discussion about an assignment is encouraged and is not considered to be cheating. Copying of any part of a program is cheating without explicit reference to its source. If we find two programs that are copied, there will be a substantial penalty to both students, e.g., failure in the course. Students who cheat on tests or in lab will fail. Prosecution of cases is very traumatic to both the student and instructor. PLEASE DO YOUR OWN WORK. Policies concerning the use of other peoples’ software in this class:
    • I strongly encourage you to study existing software.
    • All applications and libraries must be legally obtained. E.g.,
        You may use libraries that came when you bought a compiler.
        You may use software obtained from a BBS or on the WWW.
        You may copy and paste from the existing source code.
    • You may use any existing source code that is clearly referenced and categorized:
        original: completely written by you,
        derived: fundamental approach is copied but it is your implementation,
        modified: source code significantly edited to serve your purpose,
        copied: source code includes minor modifications.
Places to buy prototyping boards and other parts
In Austin

AlTex Electronics	832-9131
Tinkertronics	719-3560
Howard Electronics	837-2525

Mail Order

BG Micro, Dallas	1-800-276-2206	www.bgmicro.com
All Electronics, Los Angeles	1-800-826-5432	www.allelectronics.com
Marlin P. Jones	1-800-652-6733	www.mpja.com
TechAmerica, Fort Worth	1-800-877-0072
Hosfelt, Steubenville, OH	1-888-264-6464, 1-800-524-6464
Jameco, Belmont CA	1-800-831-4242	www.jameco.com

STUDY GUIDE Quiz 1
Lab Important Topics
13. SCI interrupts, RS232 drivers, software device driver, real time debugging
14. Optical isolation, pulse width modulation, transistor interfaces, back EMF, MOSFETs
15. Period measurement, sine wave to square wave
16b. IR detector interface, input capture measurements of pulse width, output compare interrupts

Chapter Topic
1.5, 2, 4 6812 architecture and assembly language,
        interpreting output of the C compiler (parameters, locals globals)
4 fifo’s, statically allocated linked lists, dynamically allocated linked lists,
        interrupts, latency, real time interrupts, periodic polling, critical sections
3, 4 Choosing between real time, gadfly, interrupts, periodic polling, DMA
6 Input capture, period measurement, pulse width measurement
6 Output compare, pulse-width modulation, frequency measurement
8.4, 8.5 6N139 isolation, solenoids, DC motors, back EMF
Guarantees
        Interrupts: data structures, latency, debugging
        Input capture or output compare: period or pulse width measurement

STUDY GUIDE Quiz 2 (Quiz 1 stuff plus the following)
Lab Important Topics
17. Real time OS, semaphores, critical sections, synchronization, communication
11b. Networks, communication, synchronization
21. DAC interface, DAC signal generation
22. 6812 ADC, analog amplifiers, analog filters, digital filters,
        fixed point numbers, resistor bridge, op amps

Chapter Topic
9 Address decoding, timing syntax, synchronous, partially asynchronous,
        fully asynchronous, general approach to interfacing,
        interface of RAM and ROM to a 6812 in expanded narrow mode,
        interface of a RAM and ROM to a 6812 in expanded wide mode,
        data bus drivers (no 16 bit, paged memory, 6811, DRAM, parity check)
11, 12 Analog Circuits, amplifiers filters, ADC, DAC, data acquisition systems
11.9, 15 Digital filters implementations, multiple access circular queue
14 BSC network
        BSC protocol, checksums, error detection, error recovery, 
Guarantees
        Interrupt software
        Memory interface: timing analysis, diagrams, design, CS initialization
        Data acquisition systems
        Analog circuits

STUDY GUIDE Final (Quiz 1 and Quiz 2 stuff plus the following)
Lab Important Topics
23/24 Control system, either PID or Fuzzy, periodic interrupts, AC to TTL conversion, input capture measurement of period, discrete derivative

Chapter Topic
9 Address translation, paged memory
10 DMA concepts, single vs. dual cycle, block (burst) vs. cycle steal, software synchronization, bandwidth, latency, address increment, block size, autoinitialization (reloads parameters and loops continuously)
13 Control Systems, open loop, closed loop, PID implementations, Fuzzy Logic design and implementation

Guarantees
        Control system implementation
        Multiple source interrupts with synchronization
        Memory interface: timing analysis, diagrams, design, CS initialization
        Analog circuits
        Input capture or output compare: measurement or signal generation

Curious about my research? See
http://www.ece.utexas.edu/~valvano/research