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Chapter 4: Using the Logic Analyzer in Eye Scan Mode
Setting Up and Running Eye Scan Measurements
Setting Up and Running Eye Scan
Measurements
The Eye Scan tab lets you set up and run Eye Scan measurements.
Eye Scan measurements sample small windows of time and voltage on
logic analyzer data channels. The time windows are relative to a clock
signal from the device under test. Captured measurement data is
displayed as eye diagrams in the Eye Scan display.
Eye Scan measurements let you validate and characterize the data
valid windows of signals latched by the clock. When an Eye Scan
measurement shows a signal with setup/hold problems or some other
anomaly, you can use a high-speed or high-bandwidth oscilloscope to
examine the signal in greater detail.
• “To select channels for the eye scan” on page 119
• “To set the eye scan range and resolution” on page 120
• “To run an eye scan measurement” on page 121
• “To set advanced eye scan options” on page 121
• “To set up qualified eye scan measurements” on page 122
• “To comment on the eye scan settings” on page 132
See Also “To make measurements on the eye scan data” on page 142
“Selecting the Eye Scan Mode” on page 55
“Displaying Captured Eye Scan Data” on page 133
“Saving and Loading Captured Eye Scan Data” on page 152
“Understanding Eye Scan Measurements” on page 259
To select channels for the eye scan
You may want to run the eye scan on channel subsets, for example,