Solved
using the stm32f7222ze - nucleo board and trying to activate standby mode and wake up by pin PA0 .
int main(void)
{
/* USER CODE BEGIN 1 */
/* USER CODE END 1 */
/* MCU Configuration--------------------------------------------------------*/
/* Reset of all peripherals, Initializes the Flash interface and the Systick. */
HAL_Init();
/* USER CODE BEGIN Init */
/* USER CODE END Init */
/* Configure the system clock */
SystemClock_Config();
/* USER CODE BEGIN SysInit */
/* USER CODE END SysInit */
/* Initialize all configured peripherals */
MX_GPIO_Init();
/* USER CODE BEGIN 2 */
if(__HAL_PWR_GET_FLAG(PWR_FLAG_SB)!=RESET)
{
__HAL_PWR_CLEAR_FLAG(PWR_FLAG_SB);
HAL_PWR_DisableWakeUpPin(PWR_WAKEUP_PIN1);
for(int i =0; i<10; i++)
{
HAL_GPIO_TogglePin(GPIOB, GPIO_PIN_0|GPIO_PIN_7|GPIO_PIN_14);
HAL_Delay(50);
HAL_GPIO_TogglePin(GPIOB, GPIO_PIN_0|GPIO_PIN_7|GPIO_PIN_14);
HAL_Delay(50);
}
}
__HAL_PWR_CLEAR_FLAG(PWR_FLAG_WU);
for(int i =0; i<4; i++)
{
HAL_GPIO_TogglePin(GPIOB, GPIO_PIN_0|GPIO_PIN_7|GPIO_PIN_14);
HAL_Delay(750);
HAL_GPIO_TogglePin(GPIOB, GPIO_PIN_0|GPIO_PIN_7|GPIO_PIN_14);
HAL_Delay(750);
}
HAL_PWR_EnableWakeUpPin(PWR_WAKEUP_PIN1_HIGH);
HAL_PWR_EnterSTANDBYMode();
/* USER CODE END 2 */
/* Infinite loop */
/* USER CODE BEGIN WHILE */
while (1)
{
/* USER CODE END WHILE */
/* USER CODE BEGIN 3 */
}
/* USER CODE END 3 */
}the above code of standby activation and wakup from pin PA0 is working with stm32f103 series and stm32f411 series but not working with stm32f7222ze Nucleo board .