Forum Discussion

ushermark's avatar
ushermark
Icon for New Contributor rankNew Contributor
3 years ago
Solved

Intel Arria 10 with dual-rank UDIMM EMIF

Hello. I am a newbie in developing software for Intel Arria 10 FPGA. I have a PCB with installed FPGA and trying to use EMIF. Unfortunately, I got an error on calibration stage. After some timing...
  • AdzimZM_Altera's avatar
    AdzimZM_Altera
    3 years ago

    Hello Mark,

    I have attached the example design in .qar file below. Please let me know if this design can fit into your board.
    Please share the Report DDR as snapshot below after the compilation process.

AdzimZM_Altera's avatar
AdzimZM_Altera
Icon for Regular Contributor rankRegular Contributor
3 years ago

Hi Mark,


There is timing violation in your design. This will cause the failure during the calibration process.

May I know the device OPN that you used? And can you provide the pin placement as well?

I will try to generate an example design and share with you for debugging purpose.


Thanks,

Adzim



ushermark's avatar
ushermark
Icon for New Contributor rankNew Contributor
3 years ago

Hello Adzim,

I am using an unique board with installed FPGA that was developed by my company, so I cannot give much details about it.

Attaching pin planner .csv file.

Best regards,

Mark

  • AdzimZM_Altera's avatar
    AdzimZM_Altera
    Icon for Regular Contributor rankRegular Contributor
    3 years ago

    Hello Mark,

    I have attached the example design in .qar file below. Please let me know if this design can fit into your board.
    Please share the Report DDR as snapshot below after the compilation process.

    • ushermark's avatar
      ushermark
      Icon for New Contributor rankNew Contributor
      3 years ago

      Hello Adzim,

      I have tested example design from your project. EMIF IP settings are working on my board. All 6 same type RAMs from different vedors have passed calibration.

      Also, I tried to increase working frequency up to 1200MHz and it was still working. It took me around 1 month to find a proper settings and your solution finally give me a required result.

      Do you have any hints that might help me to find a similar solution for different RAM types in the future?

      Thank you very much for help!

      Best regards,

      Mark