The STM32F469 has the USB bugs found in errata of STM32F429 (but not its own errata)
where it can't connect to low-speed thru a hub. Is that a problem in the PHY, and will using an external PHY solve it?
Specifically, will using the STULPI01 allow a low-speed device to connect via a hub to the OTG-HS USB interface, or is this bug not actually in the internal FS-PHY, but in the controller?