User Activity

I have been struggled for several days. I have to plug in the board very quick and open the firmware update page on stm32 cubeIDE and update. After update, I can debug and can only last for 5 to 10 seconds. After that, I have to unplug and replug aga...
using a 32 KHz low-speed external crystal to run the RTC on STM CubeIDE.