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Adventurer
Adventurer
948 Views
Registered: ‎03-31-2014

iserdes output not coming on board

Hi,

 

I am using a ssr_iserdes block in design to receive a serial data of 125MHz with serialization factor as 10.

 

on board, output 10 bits(of iserdes) are not toggling at all. Where as, if I use a differential buffer inplace of ssr_iserdes, I am able to see output single ended data is toggling.

 

Any suggestions why would this scenario occur?

 

Thanks in advance!

Aj

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3 Replies
Scholar drjohnsmith
Scholar
926 Views
Registered: ‎07-09-2009

Re: iserdes output not coming on board

have you looked at the simulation 

<== If this was helpful, please feel free to give Kudos, and close if it answers your question ==>
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Adventurer
Adventurer
916 Views
Registered: ‎03-31-2014

Re: iserdes output not coming on board

Yes. Simulation is workingCapture.PNG

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Scholar drjohnsmith
Scholar
842 Views
Registered: ‎07-09-2009

Re: iserdes output not coming on board

A great start, well done, amazing how many dont even top level simulate like that.

 

Time to start debugging.

 

example.  Are you putting into chip the same as your simulation ?

                    you have a reset in the simulation, is that correct, 

 

your simulation seems to be just the ser des block, 

      how are you stimulating the simulation ? 

 

are you showing the output pins in your simulation ?

 

<== If this was helpful, please feel free to give Kudos, and close if it answers your question ==>