User Activity

Can someone point me at an example for the Nucleo-u575 board, that shows me how I can write files a USB flash drive connected to the USB-C connector (via and adapter).If this is possible? 
I'm new to using the Nucleo environment I am not seeing any activity on the PB10 and PB11 when using the SMBUS_TwoBoards_ComIT_Master example, when looking at those pins on a scope.    I only have one board currently. - Board: NUCLEO-U575ZI-Q (embeds...