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Contributor
Contributor
6,025 Views
Registered: ‎03-20-2008

Reed Solomon Encoder outputs "NaN" in System Generator

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Hallo community,

 

I built a SysGen model with the RS Encoder block involved. When I simulate the design, RS gives "NaN" (not a number) at all of its ouputs. Do I need a license for simulation in SysGen? I can't find any information about that.

 

Thank you

Stefan Schwarzer

 

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Contributor
Contributor
6,505 Views
Registered: ‎03-20-2008

Well, I retrieved an evaluation license and now simulation works as expected. I don't blame Xilinx for that, it's normal business. But please, please, please write that down in the SysGen documentation somewhere!

 

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Moderator
Moderator
6,014 Views
Registered: ‎08-01-2007

 

 

Ensure the input to RS Encoder are valid, try to use valid in and valid out for each block.

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Contributor
Contributor
6,000 Views
Registered: ‎03-20-2008

I think I did everything correct, but I still get the NANs. Could you please take a look at the model attached? I am using Xilinx 12.1 and Matlab 2010a. I know 2010a is beta for SysGen 12.1, maybe that is the problem!?

 

Thanks

Stefan Schwarzer

 

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Contributor
Contributor
5,996 Views
Registered: ‎03-20-2008

Nope, same problem with 2009b.

 

So is it the license or did I do anything wrong in the model?

 

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Contributor
Contributor
6,506 Views
Registered: ‎03-20-2008

Well, I retrieved an evaluation license and now simulation works as expected. I don't blame Xilinx for that, it's normal business. But please, please, please write that down in the SysGen documentation somewhere!

 

View solution in original post

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Xilinx Employee
Xilinx Employee
5,954 Views
Registered: ‎08-02-2007

I remember it only occurs on RS v6.1 or v6.0. couldn't remember what's the exact version. Other cores should be fine.

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Observer
Observer
4,640 Views
Registered: ‎06-23-2012

How to get this evaluation licence??I will be using rs encoder sysgen block ,I am download xilinx ise 30 days trial and matlab 2012a .Will this work??and please tell me how to get this licence

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Xilinx Employee
Xilinx Employee
4,620 Views
Registered: ‎02-11-2010

Please ask this question to the Installation and Licensing forum or the DSP - IP and Algorithms forum.

 

http://forums.xilinx.com/t5/Installation-and-Licensing/bd-p/INSTALLBD

http://forums.xilinx.com/t5/Digital-Signal-Processing-IP-and/bd-p/DSP

 

However, I expect you can get this from the Xilinx licensing page.

 

Kind regards,

Ambrose

 

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