Hi everyone!
I have this code where the mcu goes into STOP3 mode, and is waked up by a button triggering a wake-up pin.
But it only works in debug. Without the debugger, the mcu immediately exits WFI.
In debug, when I execute che code, the user led turns on, the mcu enters WFI, I press the wake-up button, the mcu exits WFI and the user led turns off.
Without debug, when I execute the code the user led just flashes for a fraction of a second, turning on and off immediately:
HAL_GPIO_WritePin(GPIOH, GPIO_PIN_0, GPIO_PIN_SET);
HAL_PWR_EnableWakeUpPin(PWR_WAKEUP_PIN7_HIGH_0);
HAL_SuspendTick();
HAL_PWREx_EnterSTOP3Mode(PWR_STOPENTRY_WFI);
SystemClock_Config();
HAL_ResumeTick();
HAL_GPIO_WritePin(GPIOH, GPIO_PIN_0, GPIO_PIN_RESET);
I also tried to put the user led on/off code around the WFI instruction inside HAL_PWREx_EnterSTOP3Mode(), and the behaviour is the same.
This is the empty callback for the wake-up pin, redefined in main.c
void HAL_PWREx_S3WUCallback(uint32_t WakeUpPin)
{
}
What can I do?
Thanks!
