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Altera_Forum
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17 years ago

DDR2 SDRAM: local_init_done not going high

I have built a DDR2 SDRAM v7.2 controlller, v7.2, using the Megawizard and a native interface. I have reviewed my schematic and pinout and it looks to be correct. The local_init_done is not going h...
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Altera_Forum
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17 years ago

Thanks FvM.

My SODIMM has 64 bits. What mode should I use, x8/x9, x16,x18, x32,x36, x4, or x4 Mode? I have a Stratix II 1020 -3 FPGA. I'm looking at the Pin Information for Stratix II EP2s60 devide and it is confusing because it has DG group for DQs mode and the DQ group for non-DQS mode. I'll assume that since my Micron SODIMM module uses the DQS pins (non-differential), that I need to use the DQ group for DQS mode pins.

Thanks for all of your continued support.