MCIMX6D6 DDR 如何降频(How to down the DDR running frequency

[zoujiamin]

How to down the DDR3 running frequency ?  IMXd6,  Linux

我们的板子调试总出问题,　　现在想降低DDR3的运行频率，　　请问该如何操作?　谢谢.

[Rita_Wang]

Which board are you using? Which frequency are you using now?

[zoujiamin]

IMX6d6   , self made board.  DDR3 528MHz.  We made more than there hundred  boards .  About half of them hanged up after running several hours. Now we want to  run it at a lower DDR frequency

[Rita_Wang]

For our reference board, the 400MHz is the ideal value. The DDR frequency support depend on hardware design. Here recommend you to use the 400MHz or lower for you board.

[zoujiamin]

Thank you for reply!

Today,  we found the board can ran stably when switch off the CPU1. It's strange.  We cann't konw what happened . and don't know what's the problem. We tested the supply, it's very good.