AutoFocus User’s Guide
40
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5. Check
Pressing the
SCAN
button will execute
Analyzer.TestFocus
to update the window. In best case it should
look like the following:
In this case no timing issues are expected. The sampling point should be placed in the middle of the white
areas. In comparison to the following scan results, where more investigations are required:
Color Legend:
•
White
color indicates stable areas.
•
Red
horizontal lines mark setup violations on clock edges:
-
Red upper line: rising clock edge
-
Red lower line: falling clock edge
•
Gray
areas mean instable data (setup violations) on rising and falling clock edges.