13 Replies Latest reply on Oct 9, 2013 9:16 AM by saddam.sarwar786

Model Mix of HSPICE and IBIS on Virtex-5 SI-Simulation Kit

thomas.te.ebert Aug 18, 2011 4:38 AM

I'm trying actually to mix on a SERDES simulation the HSPICE model of Virtex-5 GTP transceiver with an IBIS receiver from National Instruments.

The simulation is based on the eye diagram. The result will be that the voltage level will be rising up to +/-2000V.

When I simulte purely with the HSPICE (transceiver/receiver from Xilinx) models or IBIS (transceiver/receiver from NI) models I got the eye diagram as the result.

What I'm doing wrongly?

Thanks and Best Regards

Thomas

1. Re: Model Mix of HSPICE and IBIS on Virtex-5 SI-Simulation Kit

yu.yanfeng Aug 18, 2011 8:33 PM (in response to thomas.te.ebert)

Would you like to attach the data here?
Yanfeng
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2. Re: Model Mix of HSPICE and IBIS on Virtex-5 SI-Simulation Kit

thomas.te.ebert Aug 19, 2011 5:57 AM (in response to yu.yanfeng)
Hi Yu Yanfang,

many thanks for your help.

I've attached the models from NI and a picture from LineSim of HyperLynx. The basis of the simulation was the Rocket IO SIS-Kit from Xilinx/Mentor. I have reduced just the data transfer rate from 3.75GBits to 1.5GBits.

I have tried to simulate firstly with the a PBRS-7 stimulus on that speed range. But the result is as I have described.
After this result I tried to simulate with a 750MHz oscillator frequence with different time steps. The model from LineSim and the results of simulation are included inside the pdf-report.

Best Regards
Thomas

GTP2NI-Report.pdf 46.1 KB

ds15ea101.ibs.zip 9.6 KB

ds15ba101.ibs.zip 11.2 KB
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3. Re: Model Mix of HSPICE and IBIS on Virtex-5 SI-Simulation Kit

yu.yanfeng Aug 21, 2011 10:16 PM (in response to thomas.te.ebert)

Hi Thomas,
I guess you are using the eldo model. You may first check that the ForceFixedStep = 0 is set in the bsw.ini file of the HL tree (as Xilinix guide and set the step to a reasonable step value such as 3ps instead of 30ps.
Yanfeng
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4. Re: Model Mix of HSPICE and IBIS on Virtex-5 SI-Simulation Kit

weston_beal Aug 23, 2011 10:29 AM (in response to thomas.te.ebert)

This issue is a little more complicated. I suggest that you open a service request on SupportNet so that we can help you directly and in more detail.
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5. Re: Model Mix of HSPICE and IBIS on Virtex-5 SI-Simulation Kit

thomas.te.ebert Sep 14, 2011 2:27 AM (in response to yu.yanfeng)

Hi Yanfang,

I have set the the option wihtin the bsw.ini as you suggested. The simulation result is different as it was before. I have envolved as well the support group of Mentor Graphics. It seems something to do with simulator setups.

The models for itsself are ok. I will inform you about the reason, when we find the problem.

Many thanks for your help and Best Regards
Thmas
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6. Re: Model Mix of HSPICE and IBIS on Virtex-5 SI-Simulation Kit

huang.de Feb 22, 2012 1:56 PM (in response to thomas.te.ebert)

Could you tell me how do you generate V5GTP_Tx in Hyperlynx Linesim? I downloaded the v5_gtx_transceiver_models_ibis-ami file from xilinx. Do I really need sisoft software to generate an ibis file for Hyperlynx? I could not found the xilinx virtex 5 design kit that Mentor claim on their web seminar below:
Multi-GHz Channel Analysis Using HyperLynx and Xilinx' IBIS-AMI Models Web Seminar

Now I am stuck with butch of ami and dll files. :-(
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7. Re: Model Mix of HSPICE and IBIS on Virtex-5 SI-Simulation Kit

ayuekanbe_atagabe Feb 22, 2012 2:08 PM (in response to huang.de)

Hello Haung,

You need to contact Xilinx for the IBIS files that go with the ami files. These can't be generated in HyperLynx. IBIS-Ami Models consists of 3 portions all of which must be provided by the vendor.

1) Analog models for the transmitter and receiver (IBIS format)
2) Compiled Algorithmic models (the DLL library for Windows, or SO library for Linux/Unix)
3) A parameter file (.ami) for the algorithmic models

Please refer to the technote below to answer some of your question about IBIS-AMI. If you need further assistance, open a service request via supportnet and someone from Mentor Support will help you.
http://supportnet.mentor.com/reference/technotes/public/technote.cfm?tn=MG514764
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8. Re: Model Mix of HSPICE and IBIS on Virtex-5 SI-Simulation Kit

huang.de Feb 23, 2012 6:40 AM (in response to ayuekanbe_atagabe)

Thanks for the quick reply. I checked with xilinx and their ibis-ami files only support sisoft QCD SerDes Vendor Implementation Kits. Those files are .sp (HSPICE format). So I guess my question would be how do I integrate .sp model into HyperLynx Linesim. Is there any tutorials? Sorry I am a newbie.

Also, I noticed that Chuck Ferry on his webminar mentioned about the Hyperlynx 8.0 AMI design kit. I searched almost everywhere and I could not found it. (Well, I actually found the one for virtex II rocket i/o but I am using virtex 5!) Are they compatible?

.
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9. Re: Model Mix of HSPICE and IBIS on Virtex-5 SI-Simulation Kit

thomas.te.ebert Feb 24, 2012 1:03 AM (in response to huang.de)

I have simulated at the end only with the HSPICE models of Virtex-5.
They worked ok. But you must be careful on the settings of Hyperlynx. I do one major mistake on simulating with HSPICE:
It is not enough to connect the transmission line on the Linesim editor. You have to connect the line as will inside the model. So double click on the HSPICE model and check the connection. Next mistake is when you are defining the setup of the simulation. Hyperlynx is creating one HSPICE file before simulating. Therefore check the name and path before starting. In my case Hyperlynx do not create a new HSPICE model. The simulation result is than later still the same.

But when you take care of this everything works fine. In my case the IBIS file of the transceiver was wrong defined as well. I have learned my lesson.
Thomas
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10. Re: Model Mix of HSPICE and IBIS on Virtex-5 SI-Simulation Kit

ayuekanbe_atagabe Feb 24, 2012 9:56 AM (in response to huang.de)

>>So I guess my question would be how do I integrate .sp model into HyperLynx Linesim. Is there any tutorials? Sorry I am a newbie.

Yes, There is a Hot Topics technlote which is a collection of many resources on using SPICE models.

http://supportnet.mentor.com/reference/technotes/public/technote.cfm?tn=MG249865

>>Also, I noticed that Chuck Ferry on his webminar mentioned about the Hyperlynx 8.0 AMI design kit. I searched almost everywhere and I could not found it.

All Design kits for HyperLynx are located at the link below
http://supportnet.mentor.com/reference/other-info/hyperlynx_designkits/downloads.cfm

You must have a supportnet login to access the information. If you need further assistance please open a service request. Thanks
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11. Re: Model Mix of HSPICE and IBIS on Virtex-5 SI-Simulation Kit

saddam.sarwar786 Oct 8, 2013 7:28 AM (in response to thomas.te.ebert)

hey!!!! do u have .hyp file of virtex 5 i need it urgent!!!!!
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12. Re: Model Mix of HSPICE and IBIS on Virtex-5 SI-Simulation Kit

thomas.te.ebert Oct 9, 2013 3:42 AM (in response to saddam.sarwar786)

Hi,

I've got no .hyp of Virtex-5. Hyperlynx generates/needs the .hyp file for simulation. And this board is of course strictly confidential.

Best Regards
Thomas
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13. Re: Model Mix of HSPICE and IBIS on Virtex-5 SI-Simulation Kit

saddam.sarwar786 Oct 9, 2013 9:16 AM (in response to thomas.te.ebert)

hi,
actually i have to do signal and power integrity of virtex 5 board. dear i
will be very thankful to you if you manage it for me.

On Wed, Oct 9, 2013 at 3:42 PM, thomas.te.ebert
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Multi-GHz Channel Analysis Using HyperLynx and Xilinx' IBIS-AMI Models Web Seminar