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URN's avatar
URN
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6 years ago

How to write/read to external DDR from custom Qsys component (custom IP).

I could write some data on to external DDR from HPS Linux C . I want my custom component to read that data from DDR , perform some operation and put the result back to DDR at different memory locati...
KennyT_altera's avatar
KennyT_altera
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6 years ago

Hi,

You cannot do that, HPS to DDR only have one dedicated path. You have to control your memory location in the HPS C code itself.

Thanks

  • URN's avatar
    URN
    Icon for New Contributor rankNew Contributor
    6 years ago
    Hi, then how do I access the data in DDR from my custom component? I want to read the data on the DDR from custom component. I am newbie in Platform Designer usage. Please guide me .. Thank you
    • URN's avatar
      URN
      Icon for New Contributor rankNew Contributor
      6 years ago

      Hi, here I am talking about the DDR connected to FPGA part of Arria 10 SOC FPGA. How can I write and read FPGA DDR. Later I want to access this DDR content from custom component. Give me suggestions on this. Please check the image attached.

      Many Thanks

  • URN's avatar
    URN
    Icon for New Contributor rankNew Contributor
    6 years ago
    Hi, then how do I access the data in DDR from my custom component? I want to read the data on the DDR from custom component. I am newbie in Platform Designer usage. Please guide me .. Thank you