Forum Discussion

TerraX's avatar
TerraX
Icon for New Contributor rankNew Contributor
3 years ago
Solved

Cyclone V - Differential Pair Pin Assignment 1.5V PCML fitter error

When creating a new Quartus project similar to a demo example, I am trying to place XCVR pins in a blank project and getting an error from the 1.5V PMCL differential pins (HSMC_GXB_RX_p0 and HSMC_GXB...
  • Kshitij_Intel's avatar
    Kshitij_Intel
    3 years ago

    Hi Terra,


    I have told you earlier, you cannot directly connect, Please design custom logic to reconstruct the word. First correct your design then try to compile.


    Thank you

    Kshitij Goel


Kshitij_Intel's avatar
Kshitij_Intel
Icon for Frequent Contributor rankFrequent Contributor
3 years ago

Hi,


Tx and Rx are two separate clock domains. Based on two remote transactions there will be CDC problem.


You need to synchronize the data. Reconstruct the data with the valid SDI frame and then re-transmit again.


Add signal tap on relevant signals including clocks.


Thank you

Kshitij Goel