USB Type-C /USB OTG interface on the STM32H7B3ZI

[ASWIN_ASK]

I need to connect a USB Type-C connector to the USB OTG interface of the STM32H7B3ZI microcontroller. Is this possible? If so, could you provide the connection diagram, explain which pins need to be connected, and share a reference schematic or wiring diagram for the implementation?

[mfgkw]

Hi,

a NUCLEO-H7S3L8 with MB1737 should be close enough to your STM32H7B3ZI.

 

There is some info at
https://www.st.com/en/evaluation-tools/nucleo-h7s3l8.html#documentation

Under “CAD Resources” you find the schematics of this board.

 

[FBL]

Hi ​@ASWIN_ASK 

Indeed, USB Type-C receptacle can be connected to the STM32H7B3ZI USB OTG interface for USB 2.0 D+/D− signaling. The CC pins must be handled according to the USB Type-C role of the design. For a USB device/UFP implementation, the receptacle typically needs Rd pull-downs on CC1 and CC2 to indicate attachment. Please also follow the STM32 USB routing and layout recommendations for the D+/D− traces, ESD protection, and VBUS handling. Do you also plan to support USB device only? Do you use Power Delivery negotiation over CC lines, or is this a USB 2.0-only data connection?