3.9.2. Signal Eye Margin Testing ( Stratix® V only)
The Eye Viewer graph can display a bathtub curve, eye diagram representing eye margin, or heat map display. The run list displays the statistics of each Eye Viewer test. When PMA settings are suitable, the bathtub curve is wide, with sharp slopes near the edges. The curve is up to 30 units wide. If the bathtub is narrow, then the signal quality is poor. The wider the bathtub curve, the wider the eye. The smaller the bathtub curve, the smaller the eye. The eye contour shows the estimated horizontal and vertical eye opening at the receiver.
You can right-click any of the test runs in the list, and then click Apply Settings to Device to quickly apply that PMA setting to your device. You can also click Export, Import, or Create Report.
Running PRBS Signal Eye Tests ( Stratix V only)
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