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mke's avatar
mke
Icon for New Contributor rankNew Contributor
4 years ago
Solved

Arria 10 EMIF on-chip debug

Hello, Question about on-chip debug of the Arria 10 EMIF (DDR4). I have built the system, custom board, used the EMIF debug toolkit, etc., everything is fine. And, as I understood from the "EMI...
  • Deshi_Intel's avatar
    Deshi_Intel
    4 years ago

    Hi Madis,


    Unfortunately the decoding method is known to Intel Engineering team for advance internal debug purpose only. I don't have any doc nor the knowledge to share with you.


    The only info assessible for external customer will be the info displayed in the toolkit itself.


    Thanks for your understanding.


    Regards,

    dlim


Deshi_Intel's avatar
Deshi_Intel
Icon for Regular Contributor rankRegular Contributor
4 years ago

To answer your other question - No, we don't have any API to control the EMIF on chip debug feature.


The end product of "EMIF on chip debug" feature is basically the "EMIF debug toolkit" itself.

  • The toolkit decode the calibration data log and present it into user readable format


Thanks.


Regard,

dlim


  • mke's avatar
    mke
    Icon for New Contributor rankNew Contributor
    4 years ago

    Hi,

    OK, I understand.

    My system is fine and running now, and I used the toolkit to tune the EMIF, nice SW.

    I just thought that using calibration pass/fail signals is a kind of diagnostics from the previous century. Getting some more insight into margins and or generate the eye diagram for diagnostic purposes would possibly allow us to issue an early failure warning during the normal system operation.

    So, if you have a document about the data log and how to decode it then maybe you can share it?

    BR, Madis