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Subsections


3 Supplementary Material


3.1 Logic Analyzer

Start the logic analyzer by double-clicking on the LA Viewer icon on the Windows desktop. Do the following:
  1. From the Clock menu in the upper right corner of the LA Viewer window set the internal clock for a 5MHz sampling rate.
  2. Right-click in the leftmost column of the viewing area and select delete all labels.
  3. Right-click in the leftmost column of the viewing area and select add label. Add representative names and select the appropriate channels.
  4. Click on the button with a single running man. The logic analyzer will sample the logic levels on lines 0 and 1.
  5. Observe the Waveform window. You can use the Magnifying Glass icons on the menu bar to zoom in and out. Does the waveform make sense to you? Print a sample of the waveform, and put it in your lab notebook. To print a copy of this waveform, make sure the logic analyzer software is in the foreground (it is the current program). Then, press Âlt+PrintScrn to take a snapshot of that window. You can now paste this image into Word which will make it easy to print out.
  6. Another way of displaying logic data is as numbers. Right-click on the leftmost column, select combine labels, give this label any name, move all labels from source box to destination box where output is at the top, and the is at the bottom and click OK. Right click on that name, select Configure Labels, and change Group Type to binary. How does this numeric data compare to a truth table format?


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Up: Lab 1: HCMOS Logic Previous: 2 Lab
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Last Modified 2008-09-10