Learning Forum

[cool leaf]

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 Mzoughi]

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

[Dan Dvorscak]

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]

Hi @Dan Dv

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

finesim

[cool leaf]

 

 

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

[Dan Dvorscak]

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]

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 Dvorscak]

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