tryp low power standby mode

Core/Src/main.c

@@ -85,7 +85,20 @@ int main(void)
 
   /* Initialize all configured peripherals */
   MX_GPIO_Init();
-  MX_LoRaWAN_Init();
+
+  if(__HAL_PWR_GET_FLAG(PWR_FLAG_SB) == RESET)
+  {
+
+	  MX_LoRaWAN_Init();
+
+  } else {
+
+	  __HAL_PWR_CLEAR_FLAG(PWR_FLAG_SB);
+	  //MX_LoRaWAN_Init();
+	  SystemApp_Init();
+	    UTIL_TIMER_Start(&TxTimer);
+	  MX_LoRaWAN_Process();
+  }
   /* USER CODE BEGIN 2 */
 
   /* USER CODE END 2 */

Core/Src/stm32_lpm_if.c

@@ -51,6 +51,19 @@ const struct UTIL_LPM_Driver_s UTIL_PowerDriver =
 
 /* USER CODE BEGIN PTD */
 
+extern RTC_HandleTypeDef hrtc;
+
+void CPUcontextSave(void); /* this function is implemented in startup assembly file */
+void SystemClock_Config(void);
+void PeriphCommonClock_Config(void);
+
+/* Private function prototypes -----------------------------------------------*/
+
+
+//static void ExitLowPower(void);
+#if (CFG_LPM_STANDBY_SUPPORTED != 0)
+static void ExitLowPower_standby(void);
+#endif
 /* USER CODE END PTD */
 
 /* Private define ------------------------------------------------------------*/
@@ -80,6 +93,31 @@ void PWR_EnterOffMode(void)
   /* USER CODE BEGIN EnterOffMode_1 */
 
   /* USER CODE END EnterOffMode_1 */
+	 /**
+	   * The systick should be disabled for the same reason than when the device enters stop mode because
+	   * at this time, the device may enter either OffMode or StopMode.
+	   */
+	  HAL_SuspendTick();
+	  __HAL_RCC_CLEAR_RESET_FLAGS();
+
+	  /************************************************************************************
+	   * ENTER OFF MODE
+	   ***********************************************************************************/
+	  /*
+	   * There is no risk to clear all the WUF here because in the current implementation, this API is called
+	   * in critical section. If an interrupt occurs while in that critical section before that point,
+	   * the flag is set and will be cleared here but the system will not enter Off Mode
+	   * because an interrupt is pending in the NVIC. The ISR will be executed when moving out
+	   * of this critical section
+	   */
+	  __HAL_PWR_CLEAR_FLAG(PWR_FLAG_WU);
+	  /* Enter the Standby mode */
+	    HAL_PWR_EnterSTANDBYMode();
+
+	/* USER CODE BEGIN PWR_EnterOffMode_2 */
+
+	/* USER CODE END PWR_EnterOffMode_2 */
+	  return;
 }
 
 void PWR_ExitOffMode(void)
@@ -87,6 +125,13 @@ void PWR_ExitOffMode(void)
   /* USER CODE BEGIN ExitOffMode_1 */
 
   /* USER CODE END ExitOffMode_1 */
+
+    __HAL_PWR_CLEAR_FLAG(PWR_FLAG_SB);
+    HAL_ResumeTick();
+/* USER CODE BEGIN PWR_ExitOffMode_2 */
+
+/* USER CODE END PWR_ExitOffMode_2 */
+  return;
 }
 
 void PWR_EnterStopMode(void)

Core/Src/sts_weight_scale.c

@@ -30,7 +30,7 @@ void sts_weight_scale_init(void)
 {
 	HX711_Init();
 	Get_GrossWeight();
-	HAL_Delay(500);
+	HAL_Delay(100);
 	Get_GrossWeight();
 }
 

Core/Src/sys_app.c

@@ -102,7 +102,7 @@ void SystemApp_Init(void)
   UTIL_TIMER_Init();
   SYS_TimerInitialisedFlag = 1;
   /* Initializes the SW probes pins and the monitor RF pins via Alternate Function */
-  DBG_Init();
+  //DBG_Init();
 
   /*Initialize the terminal */
   UTIL_ADV_TRACE_Init();

LoRaWAN/App/lora_app.c

@@ -37,6 +37,9 @@
 
 /* USER CODE BEGIN Includes */
 #ifdef STS_WS
+#include "stm32_lpm.h"
+#include "timer_if.h"
+#include "utilities_def.h"
 #include "sts_weight_scale.h"
 #endif
 /* USER CODE END Includes */
@@ -734,6 +737,9 @@ static void OnTxData(LmHandlerTxParams_t *params)
     }
   }
   /* USER CODE END OnTxData_1 */
+  HAL_Delay(2000);
+  UTIL_LPM_SetOffMode((1 << CFG_LPM_APPLI_Id), UTIL_LPM_ENABLE);
+  UTIL_LPM_SetOffMode((1 << CFG_LPM_UART_TX_Id), UTIL_LPM_ENABLE);
 }
 
 static void OnJoinRequest(LmHandlerJoinParams_t *joinParams)
@@ -764,6 +770,8 @@ static void OnJoinRequest(LmHandlerJoinParams_t *joinParams)
     APP_LOG(TS_OFF, VLEVEL_H, "###### U/L FRAME:JOIN | DR:%d | PWR:%d\r\n", joinParams->Datarate, joinParams->TxPower);
   }
   /* USER CODE END OnJoinRequest_1 */
+  UTIL_SEQ_SetTask((1 << CFG_SEQ_Task_LoRaSendOnTxTimerOrButtonEvent), CFG_SEQ_Prio_0);
+
 }
 
 static void OnBeaconStatusChange(LmHandlerBeaconParams_t *params)