I would like to know if there is an example project of USB composite (CDC+HID) for STM32L562.

[MOsta.1]

I have two independent projects HID and CDC which work correctly. But when I want to merge the two projects to have on composite USB device, the HID does not work correctly, it stucks. Only the CDC works fine.

[Imen.D]

Hello @MOsta.1​ ,

There are only independent projects within STM32CubeL5 package.

So, I suggest you to debug, localize where the code hangs, and identify what is the problem that you see and when it occurs.

Imen

[Grant Bt]

There is a demo example here that might shed some light on the matter.

https://github.innominds.com/dmitrystu/libusb_stm32

[MOsta.1]

Thanks for your answers. In fact, now it is working fine , I build the project based on the following link below: https://www.programmersought.com/article/18127793400/.