I use the quartus 12.1 to generate a ddr2 ip core;The fpga device is Cyclone IV;
I randomly selected a device preset and used its default parameters;then "generate simulation model " and "generate netlist" are selected!
But I found that there's a warning in the generation report;the picture is following;
The file "ddr2_ip_phy.v" is not generated,so i can't do the synthesis steps or the simulation steps;
I have tried to generate this ipcore in Quartus 11.0,12.1,13.0,but the same result is generated!
Maybe it's a problem specific to the Cyclone IV. I've done the same thing using 11.x on a Cyclone III and don't recall having that problem. Unfortunately I don't have the Quartus II installed so I can't check anything.