Hi Priit Tänav
usually, we use this way to handle unused pins:
- USBn_DP Can be left unconnected. If USB interface is not used, pin can be left unconnected
except in deep power-down mode where it must be externally pulled low. When the USB PHY is disabled, the pins are floating.
- USBn_DM Can be left unconnected. If USB interface is not used, pin can be left unconnected
except in deep power-down mode where it must be externally pulled low. When the
- USB PHY is disabled, the pins are floating.
- USB_AVSCC Tie to VSS.
- USB_VBUS Tie to VDD.
- USB_AVDDC3V3 Tie to VDD.
- USB_AVDDTX3V3 Tie to VDD.
- USB_AVSSTX3V3 Tie to VSS.
- USB_ID Can be left unconnected. If USB interface is not used, pin can be left unconnected.
Hope this helps.
Have a great day,
Jun Zhang
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