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JESD eyescan lane errors for AD9695 testing

Category: Software

Hi,

I want to evaluate my ad9695 eval board's jesd link performance, so I used your ad9695 fmc reference design but changed from subclass 1 to subclass 0 since there's only a single device.

Then I launched your jesd eyescan application and tested the jesd link. I'm wondering why there're so many errors in the lane status, since I used your reference design so there should be no problem!

The errors actually keep accumulating, the picture I show here is the result after about 10 mins connection.

Please tell me what could be the causing of this, thanks!

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  • It looks like the AD9695 devicetree is still using the deprecated/old link bring-up infrastructure.

    (not using the jesd204-fsm) so I think this devicetree needs some updates.

    But I think this should not be the problem here.

    I'm wondering is your 1300MHz converter clock and the 325MHz link clock frequency locked?

    Both signal generators using the same 10MHz reference?

    -Michael 

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  • It looks like the AD9695 devicetree is still using the deprecated/old link bring-up infrastructure.

    (not using the jesd204-fsm) so I think this devicetree needs some updates.

    But I think this should not be the problem here.

    I'm wondering is your 1300MHz converter clock and the 325MHz link clock frequency locked?

    Both signal generators using the same 10MHz reference?

    -Michael 

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