Signal integrity issues on CA. When the CMD/ADDR to REF_CLK training fails, a dialog box appears as shown in the following figure.Figure 5-1. CMD/ADDR to REF_CLK Training Fail
Workaround
Configure the FPGA ADD/CMD Drive to a different value using the MSS Configurator when the CMD/ADDR to REF_CLK (CA/CK) training fails.
The following figure shows the configuration of the ADD/CMD drive in the DDR Controller tab.Figure 5-2. Configuring ADD/CMD Drive—DDR Controller Tab
