Info: Instantiated megafunction "Ddr2RamController... with the following parameter: Info: Parameter "intended_device_family" = "Cyclone III" ... Info: Instantiated megafunction "Ddr2RamController... with the following parameter: Info: Parameter "intended_device_family" = "Cyclone IV E"
The compiler appears to instantiate some of the Megafunctions for the Cylcone III (which is different from the target device) and some for the Cyclone IV.
I subsequently highlighted this in a service request to Altera.
The official response from Altera is that this is the correct behaviour - despite being incredibly misleading. It turns out that the intended_device_family parameter is only used for simulation purposes, so the fact that it doesn't match the target device is irrelevant. Furthermore the altera docs (PDF page 55) does not allow for this parameter to be set to "Cylcone IV" - presumably, the IP block should behave identically in the Cyclone IV as it does in the earlier Cyclone III.
The result for me is that I'm still no closer to solving my DDRAM issues.
Hopefully this information will prove helpful to others struggling with misleading Quartus info/warning messages.
I originally posted a query about this in the Altera Forums to no avail:
http://www.alteraforum.com/forum/showthread.php?p=129172#post129172
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