STM32F411 switching between USB Host & Device and Middleware issues

[Romder]

Hi all!

On an STM32 project I'm working on, I want my USB port (USB C in that case) to work either in Host Mode or in Device Mode, depending on a menu change from the user. For added context, this is for a MIDI project in which the MC will either use USB Host or USB Device as a means of communication.

It appears the mode is determined by the state of Pin PA13 (SYS_JTMS_SWDIO), but I would rather do everything in software, as the USB connection will be the same (the implementation will differ between the two).

Also, when I set the USB mode to OTH/Dual_Role_Device, all of the USB files are being deleted. Should I just save the files used in Host_Only and in Device_Only in another folder, or is there a cleaner way to have both implementations at the same time? If I need to code everything from scratch, I would love to have some pointers on where to begin.

Thanks in advance!

[Gyessine]

Hello @Romder ,

Here is a link to an article that explains how to enable the NUCLEO H723 to switch between host and device modes. You can use it as a reference to assist with your F4 board project.

BR,

Gyessine

[Romder]

This is a great resource!

Thank you very much!