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ECE 353 Fall 2005 – GoLogic Tutorial

This tutorial, presented by Ben Lapointe and Ben Doherty, provides an in-depth understanding of logic analyzers, tools used to examine and visualize the operation of digital systems. Learn how logic analyzers create waveforms to uncover system errors and instabilities, offering a clearer analysis of digital signals compared to oscilloscopes. Gain insights into the basic operational steps, configuration tips, and best practices to ensure proper usage of this expensive equipment. Whether you're troubleshooting or analyzing, a logic analyzer is an indispensable tool for digital systems.

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ECE 353 Fall 2005 – GoLogic Tutorial

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  1. ECE 353 Fall 2005 – GoLogic Tutorial Presented by: Ben Lapointe Ben Doherty

  2. What is a Logic Analyzer? • Tool to examine how a digital system operates • Creates waveforms to visualize output • Can find system errors and instabilities • Better at analyzing digital systems than an oscilloscope • Oscilloscope will show continuous voltage • Logic analyzer shows discrete logic levels

  3. How Does a Logic Analyzer Work? • Input channels are sampled with a “sampling clock,” which can be between 1KHz and 500Mhz • Samples are assigned a logical value (high or low) if they fall above or below a certain “threshold voltage” • Digitized samples can be viewed as a waveform or a text output

  4. Basic Steps • Start GoLogic • Connect the channels • Configure the logic analyzer • The “View Setup” button • Press the ‘Go’ button • Analyze waveforms • Tutorial Video

  5. Logic Analyzer Tips • Use long leads • Make bundles of different color wires to keep leads sane • NEVER bend the logic analyzer connectors: • Wires should fit in snugly without bending • Bending could cause fatigue and result in a broken connector

  6. Remember • Logic analyzers are very expensive pieces of equipment ($3,000) Treat them nicely • When your system is not working as expected, the logic analyzer is your best friend • Logic analyzer for digital signals, oscilloscope (or multimeter) for analog signals

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