Forum Discussion

zhangxianyu's avatar
zhangxianyu
Icon for New Contributor rankNew Contributor
1 year ago

DDR3 uniphy init fail,please help

我的 DDR3 PCB 板初始化失败，phy_cal_debug_info==257，我启动了 memory toolkit，它显示验证失败。现在，在使用掩码功能后，验证再次成功。我应该怎么做才能确保我的 DDR3 正常运行
我的 DDR3 芯片上的所有信号长度相等
My DDR3 PCB board initialization failed, phy_cal_debug_info==257, I started the memory toolkit and it showed a verification failure. Now, after using the masking function, the verification has been successful again. What should I do to ensure that my DDR3 runs correctly
All signals on my DDR3 chip are of equal length
Board Debug

5 Replies

  • AdzimZM_Altera's avatar
    AdzimZM_Altera
    Icon for Regular Contributor rankRegular Contributor
    1 year ago

    Hi


    May I see your DDR3 IP setting from the GUI?

    You can provide the snapshot of the IP GUI and put it in this forum.


    Can you share the calibration report from the memory toolkit for calibration fail?

    You can generate the report by clicking on Generate All Report in the toolkit.


    Thanks,

    Adzim


    • zhangxianyu's avatar
      zhangxianyu
      Icon for New Contributor rankNew Contributor
      1 year ago

      Thank you for replying to me

      this is my project

      The hardware was drawn by my colleague, and the control lines are not of equal length. The others are of equal length. Currently, I don't know if it's a hardware or software issue. How can I debug to see the timing of DDR3 operation

    • zhangxianyu's avatar
      zhangxianyu
      Icon for New Contributor rankNew Contributor
      1 year ago

      now my init sometime is sucess,sometime is fail

      sucess is follow picture 

        

      fail is follow picture 

       

        

  • AdzimZM_Altera's avatar
    AdzimZM_Altera
    Icon for Regular Contributor rankRegular Contributor
    1 year ago

    Hi


    You may calculate the board skew and enter the details in the IP.

    This margin from toolkit doesn't look okay. Maybe the issue is with the signal integrity on the board.


    You also can check the clock stability and voltage level on the board.


    Regards,

    Adzim