AnsweredAssumed Answered

Voltage of USB OTG DP pin of i.MX6

Question asked by Zongbiao Liao on Feb 3, 2016
Latest reply on Feb 4, 2016 by igorpadykov

Hello,Community

 

I have an issue about the voltage of USB OTG DP pin of i.MX6.

 

In normal case, the DP pin should have a voltage change as bellow when the kernel is starting up.

※I measured it on i.MX6DLSabreAuto and connected the OTG port to PC.

 

But my customer met an problem. On their board, after the D+ pin rising to 0.6V, it will not fall down

and keep on 0.6V for ever.

Could you give me some advice to analyze the reason?(I think it is something about kernel,but I have not find it)

usb_otg_dp_0_6.png

 

Best Regards,

ZongbiaoLiao

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