Digital electronics

The repository contains VHDL lab exercises for bachelor course Digital Electronics at Brno University of Technology, Czechia. Nexys A7 Artix-7 FPGA board is used the course.

Exercises

1. Introduction to Git and VHDL
2. Combinational logic
3. Introduction to Vivado
4. Seven-segment display decoder
5. Latches and Flip-flops
6. Binary counter
7. Driver for multiple seven-segment displays
8. Traffic light controller
9. Project

List of VHDL examples

• Basic gates in VHDL
• Binary comparator
• Half/Full adder
• Seven-segment display
• Clock enable circuit
• N-bit Up/Down binary counter
• Driver for 7-segment display
• One-minute stopwatch
• Traffic light controller

Components

The following hardware and software components are mainly used in the lab.

• Boards:

  • Nexys A7 Artix-7 FPGA Trainer Board: reference manual, schematic, XC7A50T-1CSG324C FPGA, Nexys-A7-50T-Master.xdc

• Analyzers:

  • 24MHz 8-channel logic analyzer: software
  • Oscilloscope Keysight Technologies DSOX3034T (350 MHz, 4 analog channels), including 16 logic timing channels DSOXT3MSO and serial protocol triggering and decode options D3000BDLA

• Development tools:

  • EDA Playground is a cloud-based service that runs in your browser 👍
  • Vivado Design Suite 2020.2: installation

• Other tools:

  • git

References

1. Digital electronics wiki
2. How to install TerosHDL on Windows and Linux
3. How to install Vivado on Windows and Linux
4. ES 4 VHDL reference sheet
5. ASHENDEN, Peter J. The designer's guide to VHDL. 3rd ed. Boston: Morgan Kaufmann Publishers, c2008. ISBN 978-0-12-088785-9.
6. CHU, Pong P. FPGA prototyping by VHDL examples. Hoboken, N.J.: Wiley-Interscience, c2008. ISBN 978-0-470-18531-5.
7. MANO, M. Morris. Digital Design: With an Introduction to the Verilog, HDL, VHDL, and System Verilog. Pearson, 6th edition, 2018. ISBN-13: 978-1292231167.
8. KALLSTROM, P. A Fairly Small VHDL Guide. Version 2.1.
9. GitHub GIT CHEAT SHEET