你好:
我是用imx6ul的mcu配DDR3，使用NXP DDR test tool工具进行DDR校准时出现问题:
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！ |
