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Altera_Forum's avatar
Altera_Forum
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14 years ago

Create a DDR3 memory through ALTMEMPHY wizard

Good Day everyone!

I have a troubles in understanding how to create a megacore DDR3 which must be based on ARRIAIIGX family's IC! I plan to use a memory like MT41J64M16JT-15E (2*x16bits) & EP2AGX65DF25C5 FPGA.

I'm sure that is this forum have someone who can help & explain how to create without a mistakes "step-by-step":)

Best Regards,

Roman.

3 Replies

  • Altera_Forum's avatar
    Altera_Forum
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    14 years ago

    So there are no examples for Arria II GX board? These are the best references.

  • Altera_Forum's avatar
    Altera_Forum
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    14 years ago

    Thanks for the answer, Dear Socrates!

    Yes of course, Altera has the best on-line tranings & I like that! But most of examples based on UniPhy ... I must use the ALTMEMPHY! Besides the traning http://www.altera.com/education/training/courses/omem1110 based on UniPhy & therefore there are not so full-valued for me!

    Also I would be glad if you explain me how to place x32 DDR3 on the 3A,4A or 7A, 8A banks of EP2AGX65DF25C5?

    I tried to create the same project like this, but unfortunately I got a mistakes, I supose that I'm doing something wrong ...

    Best Regards,

    Roman.
  • Altera_Forum's avatar
    Altera_Forum
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    14 years ago

    DDR, DDR2 and DDR3 memory devices has to be interfaced to special (dedicated) FPGA pins. Run Pin Planner and enable showing of DQ/DQS groups - You'll see which pins can be used as data pins, which pins must be DQS, etc... Also some banks are capable of faster rates, some are not, but I am not sure about Arria II, since I use Cyclone III.