NUCLEO-L432KC, Stop mode power examples not working

Hello peter,

Here i've shares few lines of codes that i have successfully tested on STM32L476, I think almost all the controllers have same things to follow with little changes.

Hope this will help you.

Huzaifah

 if (__HAL_PWR_GET_FLAG(PWR_FLAG_SB) != RESET)
 {
 /* Clear Standby flag */
 __HAL_PWR_CLEAR_FLAG(PWR_FLAG_SB); 
 /* Blink LED to indicate that the system was resumed from Standby mode */
 HAL_GPIO_TogglePin(LED1_GPIO_Port, LED1_Pin);
 HAL_Delay(500);
 HAL_GPIO_TogglePin(LED1_GPIO_Port, LED1_Pin);
 HAL_Delay(500);
 }
 
 /* Turn on LED3 */ //For testing purpose
	HAL_GPIO_TogglePin(LED1_GPIO_Port, LED1_Pin);
 /* Insert 5 seconds delay */
 HAL_Delay(5000);
 
 /* The Following Wakeup sequence is highly recommended prior to each Standby mode entry
 mainly when using more than one wakeup source this is to not miss any wakeup event.
 - Disable all used wakeup sources,
 - Clear all related wakeup flags, 
 - Re-enable all used wakeup sources,
 - Enter the Standby mode.
 */
 
 /* For power consumption's sake, appropriately configure the GPIO corresponding to
 the wake-up pin, fill up the pull-down control register and set the APC bit. */ 
 
 __HAL_RCC_GPIOA_CLK_ENABLE();
	
 GPIO_InitStructure.Pin = Button_Pin;
 GPIO_InitStructure.Mode = GPIO_MODE_INPUT;
 GPIO_InitStructure.Pull = GPIO_PULLDOWN;
 
 HAL_GPIO_Init(GPIOA, &GPIO_InitStructure);
 
 HAL_PWREx_EnableGPIOPullDown(PWR_GPIO_A, PWR_GPIO_BIT_0);
 HAL_PWREx_EnablePullUpPullDownConfig();
 
 /* Disable used wakeup source: PWR_WAKEUP_PIN1 */
 HAL_PWR_DisableWakeUpPin(PWR_WAKEUP_PIN1);
 
 /* Clear all related wakeup flags */
 __HAL_PWR_CLEAR_FLAG(PWR_FLAG_WU);
 
 /* Enable wakeup pin WKUP1 */
 HAL_PWR_EnableWakeUpPin(PWR_WAKEUP_PIN1_HIGH);
 
 
 /* Enter the Standby mode */
 HAL_PWR_EnterSTANDBYMode();

Hi Huzaifah

Thanks for the code. I did get the standby mode example working but for my application I need STOP MODE 2 and the example program for that simply doesn't work as supplied in Cube