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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

Hi,


I don't recommend you to use "EMIF on chip debug" feature as it's mainly useful for Intel Internal debug only. Whatever calibration data log that you dump out won't be meaningful unless you know how to decode it.


Instead, may I recommend you to monitor DDR4 IP interface "local_cal_success" and "local_cal_fail" status signal with your NIOS software program ?

  • These 2 status signals is good enough to tell your system whether DDR4 calibration process pass or fail


If unfortunately your system is really failing DDR4 calibration, then you can use EMIF debug toolkit to perform debugging and collect more debug info from there


Thanks.


Regards,

dlim