Comparators

In this lab, students will learn how to implement the <, > and = operations in a combinational logic circuit. They will use Multisim to build and simulate comparator circuits, and then deploy them onto the FPGA of the DSDB board.
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This is lab 8 of 17 in the course, Digital Electronics.

LEARNING OBJECTIVES


After completing this lab, students will be able to:
  1. Gain exposure to the porpose of a sub circuit within a larger circuit in the Multisim PLD schematic
  2. Recognize that comprarators can be constructed with logic gates or chips that can be combined if/when the number of bits increases
  3. Reflect on the similarities and differences between adders and comparators
 

REQUIRED SKILLS

 
  • Introductory Physics or equivalent
  • Circuits 1 or equivalent

NI ELVIS III

Engineering laboratory solution for project-based learning that combines instrumentation and embedded design with a web-driven experience, delivering a greater understanding of engineering fundamentals and system design.

Digital Systems Development Board for NI ELVIS III

An application board for NI ELVIS III that provides students with a comprehensive education in digital electronics with hands-on experiments to interactively demonstrate concepts in the digital domain.

Multisim

Multisim is a circuit simulation tool built for educators to teach analog, digital, and power electronics by connecting simulation to experimentation. 

Required Software

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  • Multisim 14.0.1 Education or Later - Download
  • NI LabVIEW FPGA Vivado 2014.4 - Download
  • Digilent Hardware Driver (note, the installer above automatically downloads the installer below onto your computer)
    • Navigate to C:\NIFPGA\programs\Vivado2014_4\data\xicom\cable_drivers\nt64\digilent
    • Install install_digilent.exe

Required Hardware

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INSTRUCTOR RESOURCES

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