Hello! I'm trying to program the STM32F401CC using a 'Black Pill' development board and my Ubuntu 20.04LTS computer (a NUC8i5BEH). The STM32CubeProgrammer does not recognize the board in DFU mode (and thus I cannot program it).

[KJond.1]

It does recognize the USB device (when connected through the USB-C). My Macbook recognizes the device in DFU mode, so I know that the board and port is working (I have successfully programmed the board with my Mac). Also, I managed to program the board once with my Ubuntu computer, shortly after having unplugged it from my Mac. But normally it does not work.

I am using the Arduino IDE (but have tried also connecting straight to the CLI CubeProgrammer supplied by you).

I am wondering if I need some sort of driver or such for Linux. I have libusb installed.

best regards,

Karl Johannes