imx6ul使用nxp DDR test tool 测试工具的问题

wsssysy · 发表于 2019-1-16 20:25:27

HW WL cal status no suitable delay value found for byte 0
HW WL cal status no suitable delay value found for byte 1
Writing leveling calibration complete but Failed ,the follow result were found:
>MMDC_MPWLDECTRL0 ch0(0x21b080c)=0x001F001F
>Write DQS delay result:
> Write DQS0 delay 31/256 CK
> Write DQS0 delay 31/256 CK
>
>Error:Failed during write leveling calibration

>请问这个一般是什么原因导致的呢？感谢支持！