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Chapter 3: Reference
Importing Netlist and ASCII Files
Sampling Positions Dialog
The Sampling Positions dialog lets you position the logic analyzer's
setup/hold window (or sampling position) so that data on high-speed
buses is captured accurately, in other words, so that data is sampled
when it is valid.
When the device under test's data valid window is less than 2.5 ns
(roughly, for clock speeds >= 200 MHz), it's easiest to use eye finder
to locate the stable and transitioning regions of signals and to
automatically adjust sampling positions.
When the device under test's data valid window is greater than 2.5 ns
(roughly, for clock speeds < 200 MHz), it's easiest to adjust the
sampling position manually, without using the logic analyzer to locate
the stable and transitioning regions of signals.
• “Eye Finder Option, Setup Tab” on page 132
• “Eye Finder Advanced Settings Dialog” on page 133
• “Eye Finder Option, Results Tab” on page 134
• “Eye Finder Run Messages” on page 136
• “Eye Finder Info Messages” on page 139
• “Eye Finder Load/Save Messages” on page 141
• “Eye Finder Option, File Info Tab” on page 142
• “Manual Setup/Hold Option” on page 144
See Also “Understanding State Mode Sampling Positions” on page 208
“Selecting the State Mode (Synchronous Sampling)” on page 43