Run mode, USB_VBUS supply 5V, VDDUSB_CAP=3V
suspend mode, USB_VBUS supply 5V, VDDUSB_CAP=2V
How to keep i.MX6Q VDDUSB_CAP in 3v at suspend mode?
In the suspend mode, the USB core is powered off, so, there is no way (and no need) to keep the VDD_USB_CAP voltage at fixed level.
Have a great day,
Artur
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