Intermodule Measurement Problems
Some problems occur only when you are trying to make a measurement involving multiple modules.
An event wasn’t captured by one of the modules
If you are trying to capture an event that occurs very shortly after the event that arms one of the measurement modules, it may be missed, due to internal analyzer delays. For example, suppose you set the oscilloscope to trigger upon receiving a trigger signal from the logic analyzer, because you are trying to capture a pulse that occurs right after the analyzer’s trigger state. If the pulse occurs too soon after the analyzer’s trigger state, the oscilloscope will miss the pulse.
Adjust the skew in the Intermodule menu.
You may be able to specify a skew value that enables the event to be captured.
Change the trigger specification for modules upstream of the one with the problem.
If you’re using a logic analyzer to trigger the scope, try specifying a trigger state one state before the one you are using. This may be more difficult than working with the skew, because the prior state may occur more often and not always be related to the event you’re trying to capture with the oscilloscope.
