How to know how much current is being drawn from USB host in imx6

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How to know how much current is being drawn from USB host in imx6

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manjunathmandya
Contributor I

Hi,

  We have a custom imx6 based hardware powered with Li-ion battery, our board has option to charge from either wall AC adapter or through USB connected to a host USB2.0 ( PC/Laptop ). As USB 2.0 can give current either 100/500mA.

  My question is without any modification to USB cable is there a way to know how much current is being drawn by my board from USB 2.0 host, does imx6 has any register to display it ?

Thanks,

Manjunath

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igorpadykov
NXP TechSupport
NXP TechSupport

Hi Manjunath

no there are no processor circuits allowing to measure current drawn from usb.

Best regards

igor

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