Chapter 5: Reference

The Sampling Tab

How the Selected Position Behaves

1.When eye finder is enabled, the selected position (blue line) is set based on the manual setup/hold value.

2.Whenever the selected position is moved, the manual setup/hold value is also updated. They always track each other.

3.When the manual setup/hold is enabled again, the position changes made while eye finder was enabled can be kept or discarded.

NOTE:

If eye finder changes are discarded, this includes any setup/hold settings

 

loaded from a configuration file while eye finder was enabled.

 

4.

The selected position is "snapped" to the suggested position (green

 

 

 

triangle) each time the channel is measured.

 

How the Suggested Position Behaves

 

1.

There is only a suggested position (green triangle) on channels that have

 

 

been measured.

 

2.

The suggested position is always in the center of the stable region closest

 

 

to the selected position (blue line).

 

3.

If the selected position is moved to a different stable region, the suggested

 

 

position "hops" to the center of that region.

 

4.

If a stable region is open-ended, the suggested position is placed 1.25 ns

 

 

from the closed end (the visible boundary). If more than 1 clock edge is

 

 

active, the suggested position is placed 1.5 ns from the closed end.

Eye Finder Run Messages. These messages can appear in the status area after you run a eye finder measurement.

"XX% complete"

The indicated percentage of the channels selected for the current eye finder measurement are completed.

"Cannot run the Eye Finder at this time."

A logic analyzer measurement is currently running. Stop the logic analyzer or wait for it to complete before running eye finder.

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Agilent Technologies 16760A manual How the Selected Position Behaves, How the Suggested Position Behaves, XX% complete, 162