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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...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
17 years ago

DDIO pins? Should I only be using certain pins? Do I need to instantiate DDIO between the DDR2 signals and the output pins...Sorry for the question...I'm really confused now. I know from memory(i'm at home and don't have access to my schematic) that I am using the pins on the bottom of the chip(AB-AJ), and I think mos of them are 1-20 as well. Thanks for help...I will look into this more tomorrow at work.