PC/CP220 Digital Electronics Lab (Thursday and Friday sections)

• Safety - Emergency Numbers
    [ April 29, 2015 4.2K ]
  
  
• Laboratory Safety
  
  
• Lab Introduction: What is the purpose of the PC/CP220 labs?
  [PDF]   [ April 29, 2015 187K ]
  
  
• New Device: Breadboards
  [PDF]   [ May 1, 2012 14M ]
  Breadboards
  [HTML version]   [ May 12, 2017 7.1K ]
  
  
• New Information: Debugger boards
  [PDF]   [ June 17, 2016 4.6M ]
  Debugger Boards [HTML]   [ May 12, 2017 8.7K ]
  
  
• New Information: Pinouts
  [PDF]   [ April 12, 2011 194K ]
  
  
• More Information: Finding pin 1
  [PDF]   [ May 23, 2014 2.1M ]
  
  
• New Device: Chip Pullers
  [PDF]   [ February 11, 2014 7.4M ]
  
  
• Lab: Introduction to Digital Logic
    [ September 18, 2017 9.4K ]
  
  
• Exercise: Introduction to Logic Analysis using a Computer Algebra System
    [ May 12, 2017 5.5K ]
  Note: You can complete this exercise anytime over the next three weeks.
  
  Online Maxima Calculator
  This one you can use anywhere, with no download of anything.
  
  A related system is Wolfram Alpha truth tables which also doesn't require a download.
  
  
• Before next lab: Read documents (or watch videos) about LEDs and prototype switches and then do the quiz on MyLearningSpace.
  
  The quiz will be available from Friday at 7 a.m. until Sunday at 11:30 p.m. It will not be available the day of your lab, so you must do it ahead of time.
  
  

This week you'll learn how some common input and output devices are used. (The debugger board used previously hides some of the details.)

• New Device: Light Emitting Diodes (LEDs) [PDF]   [ April 17, 2012 ]
  Light Emmitting Diodes (LEDs) [HTML version]   [ May 12, 2017 ]
  
  
• New Device: Switches [PDF]   [ April 6, 2011 ]
  
  
• New Device: Prototype Switches [PDF]   [ January 15, 2015 ]
  Prototype Switches [HTML version]   [ May 12, 2017 ]
  
  
• Lab: Inputs and Outputs   [ September 13, 2018 ]
  
  
• If you didn't do the computer algebra system exercise, you could do it this week.
  
  
• Discuss project
  
  
• Before next lab: Read the lab (or watch videos) about Quartus II and QSim and then do the quiz on MyLearningSpace.
  
  The quiz will be available from Friday at 7 a.m. until Sunday at 11:30 p.m. It will not be available the day of your lab, so you must do it ahead of time.
  
  

Drawing a circuit diagram and simulating its operation can be done with software. This week you'll learn how.

• New Information: Keypad access to computer labs N2085 and N2095
  
  
• Lab: Quartus II Introduction   [ October 31, 2019 ]
  
  
• If you didn't do the computer algebra system exercise, you have only one more week to do it.
  
  
• Pick project
  Project List
  
  Prepare project Phase I for next week
  Phase I checklist   [ April 29, 2015 ]
  
  Sample Phase I (single output)
  prime number identifier   [ April 29, 2015 ]
  
  Here's the original project description:
  
  Prime or not?

  -4 inputs, giving binary number

  -1 output, indicating whether the number is prime or not
  
  

  Another Phase I (multiple outputs)
  flag identifier   [ April 29, 2015 ]
  
  NEW Phase I with numbers as inputs and outputs (multiple outputs)
  number of segments   [ November 14, 2018 ]
  
  
• Before next lab: Read the document (or watch videos) about enable, gate, and strobe inputs and then do the quiz on MyLearningSpace.
  
  The quiz will be available from Friday at 7 a.m. until Sunday at 11:30 p.m. It will not be available the day of your lab, so you must do it ahead of time.
  
  

• New Information: Enable, Gate, and Strobe Inputs [PDF]   [ January 31, 2014 ]
  
  
• New Device: Multiplexers [PDF]   [ October 12, 2016 ]
  
  
• Lab: Quartus II Task   [ October 31, 2019 ]
  Switch who uses the computer and who supervises from what you did last week.
  
  
• If you haven't done the computer algebra system exercise, do it this week.
  
  
• Project Phase I due (attach checklist )
  
  
• Before next lab: Read documents (or watch videos) about keypads and then do the quiz on MyLearningSpace.
  
  The quiz will be available from Friday at 7 a.m. until Sunday at 11:30 p.m. It will not be available the day of your lab, so you must do it ahead of time.
  
  

This week you'll learn to use a keypad for digital input.

• Review: Debugger boards [HTML]   [ May 12, 2017 ]
  
  
• Review: Switches [PDF]   [ April 6, 2011 ]
  
  New Device: Keypads [PDF]   [ October 13, 2011 ]
  Keypads [HTML version]   [ May 12, 2017 ]
  
  
• New Device: Resistor Arrays [PDF]   [ April 7, 2011 ]
  Resistor Arrays [HTML version]   [ May 12, 2017 ]
  
  
• New Device: Encoders [PDF]   [ January 26, 2012 ]
  
  
• Lab: Encoders   [ September 18, 2017 ]
  Be sure to put the resistor arrays back in the correct bin after the lab. To identify the value, look at the number printed on the array, as in the following examples:
  • 1kΩ Note the 3 digits after the second dash.
    The number 102 indicates the resistor value of 10x 10²Ω, or 1000 Ω
  • 1kΩ Note the 3 digits after the second dash.
  • 1kΩ Note the 1K on the right.
  • 470 Ω Note the 3 digits after the second dash.
    The number 471 indicates the resistor value of 47x 10¹Ω, or 470 Ω
  • 220 Ω Note the 3 digits after the dash.
  • 10kΩ Note the 3 digits after the second dash.
  
  
  
• Before next lab: Read documents (or watch videos) about 7 segment displays and then do the quiz on MyLearningSpace.
  
  The quiz will be available from Friday at 7 a.m. until Sunday at 11:30 p.m. It will not be available the day of your lab, so you must do it ahead of time.
  
  

This week you'll learn to use momentary switches for digital input, and 7 segment displays for output.

• Review: Light Emitting Diodes (LEDs) [PDF]   [ April 17, 2012 ]
  Light Emmitting Diodes (LEDs) [HTML version]   [ May 12, 2017 ]
  
  New Device: 7 Segment Displays [PDF]   [ April 6, 2011 ]
  7 Segment Displays [HTML version]   [ May 12, 2017 ]
  
  
• Review: Switches [PDF]   [ April 6, 2011 ]
  
  New Device: Pushbutton Switches [PDF]   [ October 21, 2011 ]
  Pushbutton Switches [HTML version]   [ October 11, 2019 ]
  Alternative Device: Momentary Switches [PDF]   [ October 22, 2015 ]
  
  
  
• Review: Enable, Gate, and Strobe Inputs [PDF]   [ January 31, 2014 ]
  
  
• New Device: Decoders [PDF]   [ January 27, 2012 ]
  
  
• Lab: Decoders   [ October 11, 2019 ]
  
  
• Prepare project Phase II for next lab period
  Phase II checklist   [ April 29, 2015 ]
  
  Sample Phase II (using Karnaugh maps and Maxima)
  prime number identifier   [ April 29, 2015 ]
  
  Another Sample Phase II (using Boolean algebra and Maple)
  flag identifier   [ April 29, 2015 ]
  Sample Revised Phase I
  Phase I (revised)example   [ April 29, 2015 ]
  
  NEW Another Sample Phase II (using Karnaugh maps and Maxima)
  number of segments   [ December 18, 2018 ]
  
  
• Before next lab: Read documents (or watch videos) about bargraph LEDs and then do the quiz on MyLearningSpace.
  
  The quiz will be available from Friday (before Reading Week) at 7 a.m. until Sunday (at the end of Reading Week) at 11:30 p.m. It will not be available the day of your lab, so you must do it ahead of time.
  
  

This week you'll learn to use programmable logic devices and bargraph LEDs for output.

• New Device: Bargraph LED Displays [PDF]   [ October 27, 2014 ]
  Bargraph LED Displays [HTML version]   [ May 12, 2017 ]
  
  Review: Resistor Arrays [PDF]   [ April 7, 2011 ]
  Resistor Arrays [HTML version]   [ May 12, 2017 ]
  
  
• Review: Keypad access to computer labs N2085 and N2095
  
  
• Lab: CPLD Introduction   [ October 31, 2019 ]
  
  
• Project Phase II due (attach checklist )
  
  
• There is no quiz this week, but you could use the time to work ahead on next week's lab, since it will take a while. Remember that Quartus II is installed in N2085 and N2095.

• New Information: Drawing tips for digital circuits [PDF]   [ November 14, 2018 ]
  Drawing tips for digital circuits [HTML version]   [ November 14, 2018 ]
  
  
• Lab: CPLD Lab Task   [ October 31, 2019 ]
  
  
• Before next lab: Reread documents (or watch videos) about LEDs and prototype switches and then do the quiz on MyLearningSpace.
  
  The quiz will be available from Friday at 7 a.m. until Sunday at 11:30 p.m. It will not be available the day of your lab, so you must do it ahead of time.
  
  

• Review: Keypad access to computer labs N2085 and N2095
  
  
• Review: Drawing tips for digital circuits [HTML version]   [ November 14, 2018 ]
  Drawing tips for digital circuits [PDF]   [ November 14, 2018 ]
  
  
• Prepare project Phase III for next week
  Note: It may be possible to use a keypad for input or a 7-segment display for output. See next week's lab for details.
  
  Phase III checklist   [ April 29, 2015 ]
  
  Sample Phase III (single output)
  prime number identifier   [ April 29, 2015 ]
  
  NEW Sample Phase III (multiple outputs)
  number of segments   [ November 14, 2018 ]
  
  

• New Information: CPLD layout tips for digital circuits [HTML version]   [ November 20, 2018 ]
  CPLD layout tips for digital circuits [PDF]   [ November 29, 2018 ]
  
  
• New Information: Prototype options [HTML version]   [ November 20, 2018 ]
  
  Note: If you include input or output devices as discussed below in your CPLD, make sure that all of your original specified signals are still connected to I/O pins. This is important so that the operation of your original circuit can be seen by these alone.
  Add circuits as needed to your drawing without changing any of the original connections, and make the new connections externally. This will avoid messing up your existing circuit, while making it possible to fall back to a debugger board if there are problems.
  • Included 7448 7-segment display driver
    If you are going to display a digit from 0 to 9 for your output, then it is possible to use a 7-segment display by adding a 7448 decoder inside your CPLD. (If you do so, remember that you will have to tie the other input pins appropriately, and not leave them floating.)
  • Keypad encoding
    If you want to use a keypad for input, and need all 16 inputs, you can cascade encoders. The parts are in the Quartus II "Maxplus II" libraries, so you can make it part of your circuit.
    
    HEX keypad encoder in CPLD
    
    
    
  • Bigger CPLD
    You may have the option of using an LC MAXII EPM240 CPLD board, which uses the EPM240T100C5N device from the MAXII family. These have many more inputs and outputs, which is particularly useful if you want to incorporate a hex keypad encoder or 7 segment display driver into your design, since they can be included in the CPLD itself, rather than as external devices.
    Note: The bigger CPLDs are 3.3V devices, so there are some special considerations that have to be observed if you want to use them. Be sure you understand these before you begin.
    CPLD layout tips for digital circuits [HTML version]   [ November 20, 2018 ]
    CPLD layout tips for digital circuits [PDF]   [ November 29, 2018 ]
    
    
• Project Phase III due (attach checklist )
  
  
• Prepare project Phase IV for two weeks from now
  Phase IV marking
  
  Note: 1/5 of the project Phase IV mark will be for demonstrating the working prototype with final inputs and outputs in either week 10 or week 11. This is to ensure that all wiring is complete before the final demonstration.
  
  
  • marking sheet   [ January 24, 2018 ]
  • marking rubric   [ November 28, 2019 ]
  
  
  Sample Phase IV Poster (single output)
  prime number identifier   [ April 29, 2015 ]
  Note: My poster doesn't contain any testing information. This is an oversight.
  
  Sample Phase IV prototype
  
  
  New: Sample Phase IV Poster (multiple outputs)
  number of segments   [ November 15, 2019 ]
  Note: My poster doesn't contain any testing information. This is an oversight.
  
  
• Project Phase IV Preparation:
  Project Phase IV Process
  [PDF]   [ November 30, 2016 144K ]
  
  Lab Task: Week 1
  
  

• Remember: 1/5 of the project Phase IV mark will be for demonstrating the working prototype with final inputs and outputs before week 12. If you didn't do this last week, do it this week.
  
  
• Prepare project poster and prototype for next week
  
  If you are having a poster printed professionally, note that there is often an additional charge for rush jobs, and there may be a normal turnaround time of a day or more. Dont leave it until the day before your presentation to print.
  
  
  
  Sample Phase IV Poster (single output)
  prime number identifier   [ April 29, 2015 ]
  Note: My poster doesn't contain any testing information. This is an oversight.
  
  Sample Phase IV prototype
  
  
  
  New: Sample Phase IV Poster (multiple outputs)
  number of segments   [ November 15, 2019 ]
  Note: My poster doesn't contain any testing information. This is an oversight.
  
  
  • marking sheet   [ January 24, 2018 ]
  • marking rubric   [ November 28, 2019 ]
  
  
  
• Project Phase IV Preparation: Week 2

• Project Phase IV: Final Presentation
  You will set up your poster and prototype, and mark other students' projects.
  
  There will be a deduction from the final project mark of 10% for every 5 minutes of lateness for the final presentation. In other words, 10 minutes late will mean 20% will be deducted from the final project mark. Groups that are on time should not have to wait for others who are late.
  
  (About 5 minutes at the beginning of the lab will be for setup. Marking will begin after that.)
  
  New:Early set-up times:
  On each day there will be times available ahead of the lab for checking your prototype, attaching keypads or prototype switches, etc.
  The times are:
  • Thursday section- Thursday, Nov. 28 after 8:30 a.m.
    Friday sections- Friday, Nov. 29 after 8:30 a.m.
  
  
  
• Lab evaluation