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Stratix 10 E-tile Transceiver Native PHY : What is defination of PMA adaptaion parameters?

s10user
Beginner
971 Views

Please give help to  know the defination of PMA adaptation paramters .

GS1,GS2,RF_B1,RF_B0,RF_A,RF_P2,RF_P1,RF_P0,RF_B0T,RF_P1_MAX,etc.

 

 

There is link fault on low data rate (2.4Gbps~4.98Gbps,9.8Gbps can link up),the signal rx_is _lockedtodata could not  assert stably, So which reasons could make the link fault?

And whether does it has some help to link fault by  adjusting those PMA adaption parameters manually(beacuse it  could not link up after inital adaption).

 

Thank you, BR!

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Kshitij_Intel
Employee
946 Views

Hi,


We can't disclose this information as we are legally not allowed to share more information on this. Please refer to https://www.intel.com/content/www/us/en/docs/programmable/683723/current/pma-adaptation-parameters.html


Thank you

Kshitij Goel


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s10user
Beginner
914 Views

Hi,

 

Thanks for your reply.

 

I have noticed this chapter and find difference with given data rates.

 

And I do not know whether do i need fix those below paramters only.

s10user_2-1678244212804.png

 

Looking forward to get some ideas from you.

 

Thank you

Best Regards!

 

 

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Kshitij_Intel
Employee
946 Views

Hi,


Please try with the Initial adaption as it is mandatory for E-tile devices.


Thank you

Kshitij Goel


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s10user
Beginner
916 Views

Hi,

 

Thanks for your reply.

 

I have used the Initial adaption for PMA follow the chapter of Signal Detect Algorithm,but it can not meet the eye height(NRZ>150).

 

Besides, for higher data rates, It can link up after Initial adaption.

So I  wan to konow that whether did it need to be optimized manually. and help to link up after manual optimization ?

 

s10user_1-1678243479911.png

 

Thank you

Best Regards!

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Kshitij_Intel
Employee
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Hi,


Please check in which condition you are running the PMA Adaptation Mode. Also, ,check the PMA Initial adaptation effort status. Please refer below link for more info.


https://www.intel.com/content/www/us/en/docs/programmable/683723/current/rx-adaptation-modes.html


Please follow the PMA Bring up flow.


https://www.intel.com/content/www/us/en/docs/programmable/683723/current/pma-bring-up-flow.html


Also, please follow the steps to perform duplex adaptation.


https://www.intel.com/content/www/us/en/docs/programmable/683723/current/duplex-adaptation-flow.html


Hope this will solve your issue.


Thank you

Kshitij Goel


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Kshitij_Intel
Employee
844 Views

Hi,


As we do not receive any response from you on the previous answer that we have provided. Please login to ‘https://supporttickets.intel.com’, view details of the desire request, and post a response within the next 15 days to allow me to continue to support you. After 15 days, this thread will be transitioned to community support. The community users will be able to help you on your follow-up questions.


Thank you

Kshitij Goel


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s10user
Beginner
791 Views

Hi,

Thank you for your reply and help with this question, but it may not be the answer I was looking for.

 

And I have another question about the inital adaption :

 

Why does the transceiver need at least twice the initial adaption  of the chart below?

s10user_0-1679466469660.png

Because they need run at two different temperatures?

What is the result of running the first inital adaption only?

 

Thank you

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