IMX535主频问题

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IMX535主频问题

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yiliu
Contributor II

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

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3 Replies

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yiliu
Contributor II

没人遇到这样的问题吗?盼复!

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igorpadykov
NXP TechSupport
NXP TechSupport

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

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160 Views
yiliu
Contributor II

谢谢回复!

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