Does anyone have comment for my question ?
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43907 can not go to deepsleep in USB host mode as the USB stack is using the resources. In deep sleep mode, all the clocks except the 32KHz are powered down. Hence the clock to the USB core is powered down. In such case the USB core can not be initialized.
Can I go to Deep Sleep after USB is disabled ?
When I tried to go to Deep Sleep without enabling/disabling USB, the current drops about 30mA.
(I didn't do anything about USB in this case.)
But when I tried to go to Deep Sleep after enabling and disabling USB, the current drops only 10mA.
Does anyone know why this difference is happened ?