/* Perform basic hardware initialization at boot. 
This needs to be run from the very beginning. So the init priority has to be 0 (zero). */
static int stm32wb_init(void)
/* Perform basic hardware initialization at boot. 
This needs to be run from the very beginning. So the init priority has to be 0 (zero). */
static int stm32wb_init(void)
{
	SystemCoreClock = 4000000;
	LL_C2_PWR_SetPowerMode(LL_PWR_MODE_SHUTDOWN);
	return 0;
}