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LFrin's avatar
LFrin
Icon for Occasional Contributor rankOccasional Contributor
3 years ago
Solved

Arria 10 cannot access Transceiver ATX PLL reconfiguration interface

Hello, I am currently try to recalibrate the Transceiver ATX PLL on an Arria 10 FPGA (10AX027E4F29E3SG) because the reference clock is not available at FPGA configuration. I use the NIOS V and conn...
  • LFrin's avatar
    LFrin
    3 years ago

    Hi,

    i found the problem. It is hardware related:

    I found it strange that the integrated processor, which takes care of the initial callibration, did not react. If I understand correctly, it is clocked by the 100 MHz user clock (clkusr). I checked the 100 MHz oscillator and well... it does not work. Since we don't use this oscillator for anything else, we didn't notice it earlier.

    Thanks for the help, my problem is solved.

    Regards, LFrin

LFrin's avatar
LFrin
Icon for Occasional Contributor rankOccasional Contributor
3 years ago

Hi,

i found the problem. It is hardware related:

I found it strange that the integrated processor, which takes care of the initial callibration, did not react. If I understand correctly, it is clocked by the 100 MHz user clock (clkusr). I checked the 100 MHz oscillator and well... it does not work. Since we don't use this oscillator for anything else, we didn't notice it earlier.

Thanks for the help, my problem is solved.

Regards, LFrin