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sbj's avatar
sbj
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3 months ago

Quartus and power domain

We actually one remaining pending issue with the Agilex chip that we can't get resolved and might need some help.    The basic description is that when comparing the power consumption of the Agilex...
Power
Programmable Logic Device
Farabi_Altera's avatar
Farabi_Altera
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2 months ago

Hello, 

 

Can you response to my inquiry? 

 

regards,

Farabi

  • sbj's avatar
    sbj
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    2 months ago

    Thank you Farabi for your reponse.

    Please allow me some time to provide you a feedback :)

    Cheers

    • Farabi_Altera's avatar
      Farabi_Altera
      Icon for Regular Contributor rankRegular Contributor
      2 months ago

      Hello, 

       

      Noted. I will wait for your reply. 

       

      regards,

      Farabi

      • sbj's avatar
        sbj
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        2 months ago

        Hi Farabi,

        here are the answers I received to your questions



        1-can you try power up with slower ramp time? (within timing spec)


        It does not help.

        2- how many boards manufactured? All showing same behavior?

        The behavior is reproducible on all three of our boards. I also observe very similar behavior on the Avnet evaluation board (with a slightly different package). 
        It appears to be temperature-dependent Vcore leakage.

        3- Is it possible to swap unit on the board with another one? 

         to see if the issue follows unit or follows board
        The issue tracks temperature. Internal Agilex temperature sensors show a direct correlation between core rail current and die temperature.

        4- Please send snapshot of the device top marking so I can analyse the production test history. 

        no answer

         

        Cheers