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MHada
Beginner
1,105 Views

Having problem with CYCLONE V SX HPS side DDR3 Layout

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Hi,

 

We are using same SOC as Cyclone v SOC development Kit but 8GB DDR3 on HPS side. We have even kept layout almost same as that of SOC Development Kit HPS side DDR3.

 

But when I get the SI Analysis Done using Hyperlynx, I find lot of noise on Address lines on my board design which I do not see on the CYCLONE V SOC Development kit.

 

This happens when we observe the output of simulation on the DIE and not on the PINs with all address lines toggling together.

 

This happens on my board but this does not happen on CYCLONE V SOC board.

 

Can some one please help in this???

 

 

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1 Solution
158 Views

Hi Mhada,

Kindly check the 'Cyclone V and Arria V SoC Device Design Guidelines' link below.

https://www.intel.com/content/dam/www/programmable/us/en/pdfs/literature/an/an-cv-av-soc-ddg.pdf

Hope this will be helpful for you.

Thank you.

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3 Replies
MHada
Beginner
158 Views

When I say noise means a lot of ringing on 7 to 8 address lines in particular which is not there in SI analysis of SOC development board.

 

In both cases we see the output on the die

159 Views

Hi Mhada,

Kindly check the 'Cyclone V and Arria V SoC Device Design Guidelines' link below.

https://www.intel.com/content/dam/www/programmable/us/en/pdfs/literature/an/an-cv-av-soc-ddg.pdf

Hope this will be helpful for you.

Thank you.

View solution in original post

MHada
Beginner
158 Views

Hi Calvin,

 

There was some mistake in my SI simulation, my board is fine and is working well.

 

Thanks a ton for support.

 

Regards.

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