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DChak3's avatar
DChak3
Icon for New Contributor rankNew Contributor
6 years ago

After simulating stratix10 emif Ip, I found if I try to do simulation for more no. packets then an error message appears. After further debugging I found the issue is with one of library created by quartus.

I am using ncsim tool for simulation. If i try for less packets lets say 50 it goes well. but for more transaction is shows error. I found the error is caused by one of library names fouteenm_ver. A...
Deshi_Intel's avatar
Deshi_Intel
Icon for Regular Contributor rankRegular Contributor
6 years ago

HI,

Looks like there is some compatibility issue with the simulator.

  1. May I know are you using NCSIM v15.2 ?
  2. Which EMIF protocol that you are using ?
  3. Is the sim error coming from your own EMIF design or EMIF example design ? Else can you try out EMIF example design to see if you can duplicate the issue ?

Thanks.

Regards,

dlim

  • DChak3's avatar
    DChak3
    Icon for New Contributor rankNew Contributor
    6 years ago

    HI dlim

    Thanks for the response.

    1. I am using NCSIM version- Cadence /Incisiv-15.20.018
    2. EMIF protocol- DDR4, stratix10, DQ bits 64, hard phy only
    3. Yes its from custom emif design. But the error message is residing in the library file generated by the quartus tool.

    The error seems to be linked with library names fourteen_ver , as if I grep the error message it resides in the library file. It is encrypted but the message is there.And it appears after 442747ns.

    I am not sure it is because of the custom IP or its a bug in emif DDR4 IP.

    Also there was a patch released to disable the iossm_buf_cpu.tr file, for 18.1.21 link is below

    https://www.intel.com/content/www/us/en/programmable/support/support-resources/knowledge-base/emif/2018/how-can-the-generation-of-the-iossmbfcpucpu-tr-file-be-disabled-.html

    But it seems not working still the trace files are generated. I tried with quartus 19 version too, there the libraries are not compiling.

    Is there any way to contact intel support directly regarding the issue. We can provide the environment if needed.