I’m currently building a design on the STM32F7 which I want to later port to a F4-NUCLEO board and eventually my own design so I want to test the USB host without the supplied electronics.
In order to do this I built a small USB breakout adapter and tried directly connecting this to 5V (for power) and PA11/PA12 (for USB). The breakout was made by simply soldering some header pins to a USB socket.
I then attached the USB socket to CN12 as shown below.
The complete pinout for CN12 can be found here https://developer.mbed.org/platforms/ST-Nucleo-F746ZG/.
You will need to connect the pins on the usb connector as shown below:
- VBUS (+5v)