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STM32L4 USB-enabled dev board not appearing on computer

SKarl.19
Associate II

Hello,

I have a STM32 Nucleo-64 development board with the STM32L476RG MCU on it.. I have made a small PCB that, among other things, brings the USB interface to a connector. I have implemented a simple USB configuration following some online tutorials like this one https://www.youtube.com/watch?v=rLnQ3W8gmjY, but its not appearing on two different computers when I run the code. (computers running Ubuntu 20.04)

When I run the code in debug mode (in STM32CubeIDE v1.10.1) I can step through the code and everything seems to configure correctly in the MX_USB_DEVICE_Init() function.

I'm new to STM32s and USB devices, so any help would be great!

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