Hi,

My customer has trying the implementation of Deepsleep 0 on their board.

They are using device mode of USB port. However, can not be USB communication the Host USB device after returning from DS0.

They also initialize the USB after returning from DS0, Host USB does not recognize.

So, I have questions.

1. TRM are described to save the context of peripheral, Does we need to save USB registers? Which USB registers should be saved ?

2. USB host recognizes If re-initialize the USB port when do not enter the DS0. Do you have any idea about this difference?

Best regards,

Chi