I am failing to get a project based on the STM32L432KC Nucleo32 board to communicate with an Android device via USB VCP.
The Nucleo project works fine over USB VCP on Windows and Linux. And a similar STM32L433-based device I made using CDC works fine with Android and the Android apps that I am testing with.
The Android device detects the VCP and the app asks for permission to talk to it. I can see that the Nucleo32 board is operational when connected to Android device.
However, I cannot get the Nucleo32 board to communicate with any of the USB Serial programs on Android. It is not receiving anything and it is not sending anything. Is there some trick to make this work? Has anyone done this before?
