derive from https://github.com/ultraembedded/core_usb_cdc
https://github.com/gowinsemi/USB-Video-Class
- High speed USB UVC device.
- Enumeration in hardware - no SW intervention required.
- UTMI PHY interface (see my UTMI to ULPI Conversion wrapper project to allow connection to a ULPI PHY e.g. USB3300)