Go to the report menu and select REPORT > GRADE. You should
see results similar to those displayed in Figure 24. The report displays
the number of total faults, untestable faults, and undetected faults. Untestable
faults are those that cannot be tested. In this example, the 2 undetected
faults are the simply due to the unconnected output of a flip flop. Undetected
faults are those that are detected by the current test. Detected faults
are those that are detected by the test and possible faults are those faults
that are detected some of the time.
Figure 24
From the pallette menu, select the Faults palette. Select SHOW
FAULTS. A pop up menu will appear as shown in Figure 25. Make sure
that all objects are selected. Also make sure that Both and Undetected
are selected. Click on OK.
Figure 25
In Figure 26, you will see all the Undetected faults displayed as little
red and greenflags. The green flags correspond to stuck at 1 faults, while
the red flags correspond to stuck at 0 faults. Once you are done viewing
the results, click on the Hide Faults icon in the palete When the
dialog box appears, click OK. All the faults should become invisible on
the schematic.
Figure 26
To get the report statistics Select:
Report > REPORT STATS
A Report Statistics dialog box will appear as shown in Fig 27. Make sure
Cycle based and Histogram is on. Then click on OK. The results are
shown in Fig. 28.
Figure 27
Figure 28
To save the Fault Summary, activate the fault Summary window, from
main menu bar select: File > Write
To save the Fault Dictionary, from the main menu bar select:
