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vsath's avatar
vsath
Icon for New Contributor rankNew Contributor
6 years ago

usage of SGDMA IP for data transfer to and from DDR3

Hi, I want to develop a system with NIOS II Processor on Arria V of one of our custom boards for DDR3 memory transfers. where as there will be a sensor which will be giving around 128 bit data per...
NurAida_A_Intel's avatar
NurAida_A_Intel
Icon for Frequent Contributor rankFrequent Contributor
6 years ago

Hi Vsath1,

I can give you idea on how to debug the issue. I will suggest you signaltap (stp) the avalon-MM interface (interface between DDR3 and MSGDMA) and check which signal is not behave unexpected. You can compare the stp waveform with the working design like NIOS II to DDR3.

Thanks

Regards,

NAli1

  • VenkateshSathar's avatar
    VenkateshSathar
    Icon for Occasional Contributor rankOccasional Contributor
    6 years ago

    yes.. I will look in that way also and tell you if anything I find.. meanwhile please review the project I have sent and if possible if you have the kit i mentioned you also run once and see the result please. Actually I already enable signal tap also in the project i gave. You can see that also once.

    • NurAida_A_Intel's avatar
      NurAida_A_Intel
      Icon for Frequent Contributor rankFrequent Contributor
      6 years ago

      Hi VSath1,

      Just to let you know that we are still working on the design to isolate the root cause. I'll let you know the results once we have done.

      Thanks.

      Regards,

      NAli1

    • VenkateshSathar's avatar
      VenkateshSathar
      Icon for Occasional Contributor rankOccasional Contributor
      6 years ago

      Hi NAli1,

      Very nice to hear that from that.

      Have to tell one good news. After enabling Signal tap found that there is no transfer happening from NIOS to DDR where as transfer from MSGDMA to DMA is happening and that is because accidentally the DATA_BUS of NIOS is not connected to DDR3_CONTROLLER's AVALON_BUS. Corrected that and generated a new .sof file and then that point onwards it started working. Thanks for the help of giving the idea to solve the problem using signal tap. It helped us.

      Regards,

      Venkatesh Sathar.

    • NurAida_A_Intel's avatar
      NurAida_A_Intel
      Icon for Frequent Contributor rankFrequent Contributor
      6 years ago

      ​Hi Venkatesh,

      Thanks you for sharing the good news and I'm glad to hear that everything is working now at your side now. 😊

      You are more than welcome. Feel free to post any update in Intel Forum if you encounter any issue in future. We will try our best to support you.

      Thanks and have a nice day !

      Regards,

      NAli1