3.2 CMD/ADDR to REF_CLK Training Fail

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Possible Reason: Signal integrity issues on CA. When CMD/ADDR to REF_CLK training fails, a dialog box appears as shown in the following figure.
Figure 3-5. CMD/ADDR to REF_CLK Training Fail

Workaround

Configure any one of the following parameters to a different value using the MSS Configurator when CMD/ADDR to REF_CLK (CA/CK) training fails:

Memory CA ODT
FPGA ADD/CMD Drive

The following figure shows the configuration of CA ODT in the DDR Memory Initialization tab.

Graphical user interface, application Description automatically generated — Figure 3-6. Configuring CA ODT—DDR Memory Initialization Tab

The following figure shows the configuration of ADD/CMD drive in the DDR Controller tab.

Graphical user interface, application Description automatically generated — Figure 3-7. Configuring ADD/CMD Drive—DDR Controller Tab

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