I refered to AN829 to make the change of EMIF from DDR4 to DDR3. I have adapted the same. And finally, there are several errors, but I am not able to locate where to fix them.
"Error(19179): The EMIF interface has an input connection from the core (top_hw|mm_interconnect_0|agent_pipeline|gen_inst.core|data1) that does not connect to a pin. Please review the top-level design to make sure all memory interface signals are connected to the top-level"
You please let me know how to fix these errors. Or where to find the cause of these errors.
Thanks a lot!
check from the RTL, the signal top_hw|mm_interconnect_0|agent_pipeline|gen_inst.core|data1 connect to what signal. I guess it is now floating at higher level. This signal need to connect to certain signal or logic.
Thanks a lot for your answer. I reviewed RTL, but could not figure out the issue, as core.data1 is not floating. But I was able to fix it, by checking EMIF interface again, then found some pin was only for DDR4, not DDR3. After removing them, I passed these errors.