你好!我们客户在量产IMX535后遇到这样的情况:在安卓环境下,会有概率的出现系统跑不起来。但调整主频1GHZ到800MHZ时,系统即可恢复正常。
我们也建议工程师做了DDR测试,显示数据是正常的。
目前这样的情况出现大概千分之五,不知道是否有遇到过这样的问题?或者能否给出方向下步排查?
非常感谢!
Original Attachment has been moved to: imx535_print.zip
Hi Yi
board stability may be affected by power supply ripples, so please
check ripples on VDDGP,VDD_DIG_PLL,VDD_ANA_PLL. Also
ddr calibration may help, read AN4466 i.MX53 DDR Calibration
Best regards
igor
-----------------------------------------------------------------------------------------------------------------------
Note: If this post answers your question, please click the Correct Answer button. Thank you!
-----------------------------------------------------------------------------------------------------------------------