sdram core in EDK

Hello all:

I am sorry for troubling you for something this trivial, but I am new to EDK. I have instanced a generic sdram controller for a MicroBlaze on a Spartan 3. The problem is that the refresh is not functioning. The memory buss is totally quiescent except when reads or writes are occurring. I am sure there is some initialization command or signal I am overlooking.

Thanks,

Fayette

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