External Memory Interfaces Intel® Agilex™ FPGA IP User Guide

ID 683216
Date 3/28/2022

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11.7.6. Viewing Reports Graphically in the Eye Viewer

Some of the tables displayed in the toolkit can be viewed in a graphical format.

The tabs and reports that can be displayed are as follows:

  • Calibration report: Report types are DQ, DQS, or DM/DBI, and are split between input and output delays.
  • Vref margining: Report types are Per-DQ, Merged for each DQS group, or Merged (an average across all the DQ margins), and split between input and output margins.
  • Driver margining: Reports either input or output margins on each DQ pin.

To view these reports, follow these steps:

  1. Click Tools > Eye Viewer > .
  2. Select the toolkit instance that you want:
  3. In the Parameters section, selected the desired tab from the dropdown menu.
  4. Click the Start button at the bottom-right to create the graphical report based on the selected parameters. (The diagrams below demonstrate different reports taken from various designs.)
    Figure 168. Graphic Representation of DQ Input Margins from Calibration
    Figure 169. Eye Diagram – Vref-in Margins on DQ0
    Figure 170. Eye Diagram – Vref-in Margins, Averaged Across All DQ Pins
    Figure 171. Eye Diagram – Vref-in Margins, Averaged Across the DQ Pins in Group 0