Pre_Lab_02_Submission_2023W1__Copy_

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Simon Fraser University *

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113

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Electrical Engineering

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Dec 6, 2023

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CPSC 121, 2023W1 Pre Lab 2 Pre Lab 2 Instructions: 1. Do not change the questions and document that is given. Simply add solutions by editing this document, using the soln environment we provided as follows: \begin{soln} My solution is here. \end{soln} Your solution will then appear in blue, and be easier to differentiate from the rest of the document. 2. If you need more space, add a page between the existing pages using the \newpage com- mand. 3. Export the completed assignment as a PDF file for upload to gradescope. Academic Conduct: I certify that my assignment follows the academic conduct rules for of CPSC 121 as outlined on the course website. As part of those rules, when collaborating with anyone, all of the below statements are true: 1. I and my collaborators took no record but names away. 2. After a suitable break, I am submitting without help from anyone other than the course staff. 1

CPSC 121, 2023W1 Pre Lab 2 In this lab, we will work with Logisim. Before continuing on to the pre-lab ac- tivities, watch our intro to Logisim video on Canvas. Anytime we introduce a new Logisim component, we will point you back to this video. You can find it on Canvas under Pages > Labs. The link is at the top of the Labs page and also under the "Prelab" column for Lab 2. 2

CPSC 121, 2023W1 Pre Lab 2 There are four pre-lab questions to prepare you for the upcoming lab. In this lab, your TA will provide you with two "mystery" ICs. An integrated circuit (IC) is a manufactured electronic circuit and in the 121 labs, this will refer to the black chips that you have already seen in lab 1. The labels on both ICs will be covered, but the notch is visible (so you know the orientation to place them on your breadboard!). • One of these chips is a hex inverter, a chip with six inverters. • The other is one of: a quad 2-input NAND gate, a quad 2-input AND gate, a quad 2-input OR gate, or a quad 2-input XOR gate. Your job is to identify these two chips. (OPTIONAL) The probe: Using the probe is not necessary for this lab, but is an additional tool you can learn to use on the Magic Box (which can be helpful here!). Using the probe can simplify this task, and help you to debug your circuits in the future. The probe input pin is in line with, and to the left of the clock outputs, and is connected to the red LED directly above it. The probe is on when the top half of the leftmost switch is down. An unused probe will blink. It will also blink if connected to an input that is not connected to anything. The probe will otherwise output the value of any input or output that it connects to. (The probe is detailed in Appendix B and Section 2.1 in The Magic Box User’s Manual 1 ). So, the probe will allow you to identify an input that is not connected to anything. 1 https://canvas.ubc.ca/files/21696316/download?download_frd=1 3

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