Hello, I am trying to port RIOT-OS to the STM32L053 MCU and I get stuck at the moment. The base system seems to work - every time I stop the system with the emulation probe I can see that the system is in the idle-thread and I can single-step until I reach the next idle-thread. The misterious thing is that the main task is never executed. No "Hello World" on the serial interface. One character is seen by a terminal software after each restart, but not more. Have you any idea what could going wrong at that step. The UART is set-up correctly, because I got the dummy handler message before I worked at the vectors.c file.
Question 2: I want to use the Low Power Timer of the STM32L053 during the idle thread (stop-mode). Can you give me a hint, where to place the change-over from the normal clock to the LPTimer? lpm_arch.c ?
Best regards, Bernhard