Plotting_results

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Plotting Simulation Results
When your simulation is complete you will want to plot your results
1) From the top tool bar in the Analog Design Environment Window go to: Results->Direct Plot
In the example below we ran a DC simulation so only that shows
The waveform window shown below will appear
2) To plot waveforms launch the calculator tool using the icon shown.
Markers
Calculator
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2/16/2016
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The calculator is shown below. You can use this tool to plot waveforms and perform functions on
waveforms. Note it uses stack data entry. The calculator is used differently depending on the type of
simulation that was performed.
Table of some important keys
Type of Simulation
Transient
AC
DC
Voltage
vt
vf
vs
Current
it
if
is
Our example is with a DC simulation
3) A dc voltage is plotted as follows.
o On the calculator hit the vs key ( you will see nothing on the calculator screen)
o Go to the Vituoso-schematic window and select the net (not pin) that you wish to plot
o You should now see an entry similar to what is above
o Hit the plot button
o The waveform should appear on the waveform window as shown below
o Eventually, if you know the net names, you can directly type the information into the calculator
D:\106747399.doc
bolson@csupomona.edu
2/16/2016
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markers
Strip
chart
Creating
multiple
plots





You can display actual voltage values by using the maker icons
You can display multiple traces as strip charts with the icon shown
Most of the bindkeys that you know from the schematic environment work here:
Zooming, panning , screen fit
You can delete traces by selecting the trace and hitting the delete key
You can create multiple plots and drag and drop traces into these new graphs
D:\106747399.doc
bolson@csupomona.edu
2/16/2016
Page 3 of 4
Variations:
 If your schematic has hierarchy (symbols). You can descend into the hierarchy to plot
nets in symbols
 You can perform complicated functions by selecting Special Functions on the calculator
 You can perform simple functions, for example, you can subtract two voltages with the
following steps:
1) On the calculator hit the vs key ( you will see nothing on the calculator screen)
2) Go to the (Vituoso) schematic window and select the net for the first voltage (not
pin)
3) Hit enter
Now onto the second voltage
4) On the calculator hit the vs key again
5) Go to the (Vituoso) schematic window and select the net for the second voltage
6) Hit the – (minus) button
7) Hit the enter button (you will see something similar to what is shown below)
8) Hit the plot button
D:\106747399.doc
bolson@csupomona.edu
2/16/2016
Page 4 of 4
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