I am trying to use platformio with some old Nucleo F401RE boards I have laying around. Compilation and download to device look ok. However there doesn’t seem to be any execution. When debugging I notice that the initialization sequence fails in SystemClock_Config. See debugging output.
This looks related : https://community.st.com/s/question/0D50X0000B8hMIU/stm32-nucleof411-not-jumping-to-main-or-not-saving-program-if-not-debugging