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DFTView® User Guide [Release 10.1.1, revision 173]
5 DFTVIEW COMPARE MODE
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5.1 Overview
DFTView® provides a consistent way to view the waveforms from different file formats.
With
DFTView® Compare Mode you can open two files representing the same vector set (e.g. an EVCD and
a VTRAN®-translated STIL file), view the associated waveforms, and compare the vectors.
This is not a byte-by-byte diff of two text files, but instead a comparison of state and/or transition
differences. The results are displayed as an ordered (by time) collection of miscompares (points where
the vectors differ) along with a customized waveform representation of them. Each miscompare will
be displayed as a peak on an otherwise linear waveform trace (where each signal is represented by a
trace).
Unlike a normal source editor/browser window, the results of a Compare are displayed in a custom tab
which displays compare parameters, total miscompare count, along with a table which describes the
details of each miscompare (e.g. at which time, and on which signal the miscompare occurs). A
modified set of controls allows you to navigate through each miscompare in much the same way as you
navigate through a source file; you can use the Next/Previous Miscompare buttons to skip from one
miscompare to the next, or by clicking on or near a specific miscompare on the waveform display and
synchronizing the Compare Results tab to the nearest miscompare.
Below the table are a series of filters where you can restrict the display to a certain beginning and/or
end time, string search on signal names, and select specific subsets of direction, type (hard or soft), and
reference and source state characters.
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