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same simple testbench to load cphy IBIS model ,but find they have different res

    • cool leaf
      Subscriber

      We face a issue when use Ansys do simulation.

       

       

      we set the same simple testbench to load  cphy IBIS model ,but find they have different results in Primesim pro(Finesim ) and Ansys with same testbench.

      • We can see the voltage change of the ABC single-ended in finesim is correct ,but in Ansys, The voltage has become very strange
      • I hope you can provide technical support to help us solve this problem

      Finesim without verilog
      A

      Ansys  without verilogA


    • Aymen
      Ansys Employee

      For technical support you can open a case in Ansys Customer Support Space (ACSS) under customer.ansys.com

    • Dan Dv
      Ansys Employee

      Yes, if you are full Ansys customer, please open a support case so we can take a closer look. If not, we can try and give some more general advice here. First off, I don't see any finesim results, just Ansys Circuit waveforms. But I am also curious what IBIS models you are using here. I really have not seen much in the way of traditional IBIS models being used for MIPI c-phy as IBIS was never really intended to produce the 3 level output signaling that s-phy requires. 

    • cool leaf
      Subscriber

      Hi @Dan Dv

      I'm having registration issues with customer.ansys.com.

      finesim

    • cool leaf
      Subscriber

       

       

      I'm having registration issues with ANSYS customer.com,does anyone know how to fix it 

    • Dan Dv
      Ansys Employee

      For registration issue, please send email to ansys-communityhelp@ansys.com. They will be able to assist in portal registration. You can also reach out to your Ansys account manager and they may also be able to assist. 

    • cool leaf
      Subscriber

      Hi @Dan Dv

      I have this IBIS case that I need help from ansys  engineer or AE.

      There may be some NDA between synopsys and ansys, so we need set a meeting to fix it.

       

      BR,

      Zhishuang

    • Dan Dv
      Ansys Employee

      Hello Zhishuang,

      That is not something that we can handle through this forum. Once you have opened a ticket in our system, one of our technical support engineers will be able to follow up with you on this regard. 

      Best regards,

      -Dan

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