添加片内硬件rtc

cubemx/Src/main.c

@@ -43,6 +43,8 @@
 
 QSPI_HandleTypeDef hqspi;
 
+RTC_HandleTypeDef hrtc;
+
 SD_HandleTypeDef hsd1;
 
 UART_HandleTypeDef huart1;
@@ -65,6 +67,7 @@ static void MX_SDMMC1_SD_Init(void);
 static void MX_USART1_UART_Init(void);
 static void MX_USART2_UART_Init(void);
 static void MX_QUADSPI_Init(void);
+static void MX_RTC_Init(void);
 /* USER CODE BEGIN PFP */
 
 /* USER CODE END PFP */
@@ -112,6 +115,7 @@ __WEAK int main(void)
   MX_USART1_UART_Init();
   MX_USART2_UART_Init();
   MX_QUADSPI_Init();
+  MX_RTC_Init();
   /* USER CODE BEGIN 2 */
 
   /* USER CODE END 2 */
@@ -149,9 +153,10 @@ void SystemClock_Config(void)
   /** Initializes the RCC Oscillators according to the specified parameters
   * in the RCC_OscInitTypeDef structure.
   */
-  RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_HSI;
+  RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_HSI|RCC_OSCILLATORTYPE_LSI;
   RCC_OscInitStruct.HSIState = RCC_HSI_DIV1;
   RCC_OscInitStruct.HSICalibrationValue = RCC_HSICALIBRATION_DEFAULT;
+  RCC_OscInitStruct.LSIState = RCC_LSI_ON;
   RCC_OscInitStruct.PLL.PLLState = RCC_PLL_ON;
   RCC_OscInitStruct.PLL.PLLSource = RCC_PLLSOURCE_HSI;
   RCC_OscInitStruct.PLL.PLLM = 4;
@@ -221,6 +226,70 @@ static void MX_QUADSPI_Init(void)
 
 }
 
+/**
+  * @brief RTC Initialization Function
+  * @param None
+  * @retval None
+  */
+static void MX_RTC_Init(void)
+{
+
+  /* USER CODE BEGIN RTC_Init 0 */
+
+  /* USER CODE END RTC_Init 0 */
+
+  RTC_TimeTypeDef sTime = {0};
+  RTC_DateTypeDef sDate = {0};
+
+  /* USER CODE BEGIN RTC_Init 1 */
+
+  /* USER CODE END RTC_Init 1 */
+
+  /** Initialize RTC Only
+  */
+  hrtc.Instance = RTC;
+  hrtc.Init.HourFormat = RTC_HOURFORMAT_24;
+  hrtc.Init.AsynchPrediv = 127;
+  hrtc.Init.SynchPrediv = 255;
+  hrtc.Init.OutPut = RTC_OUTPUT_DISABLE;
+  hrtc.Init.OutPutPolarity = RTC_OUTPUT_POLARITY_HIGH;
+  hrtc.Init.OutPutType = RTC_OUTPUT_TYPE_OPENDRAIN;
+  hrtc.Init.OutPutRemap = RTC_OUTPUT_REMAP_NONE;
+  if (HAL_RTC_Init(&hrtc) != HAL_OK)
+  {
+    Error_Handler();
+  }
+
+  /* USER CODE BEGIN Check_RTC_BKUP */
+
+  /* USER CODE END Check_RTC_BKUP */
+
+  /** Initialize RTC and set the Time and Date
+  */
+  sTime.Hours = 0x0;
+  sTime.Minutes = 0x0;
+  sTime.Seconds = 0x0;
+  sTime.DayLightSaving = RTC_DAYLIGHTSAVING_NONE;
+  sTime.StoreOperation = RTC_STOREOPERATION_RESET;
+  if (HAL_RTC_SetTime(&hrtc, &sTime, RTC_FORMAT_BCD) != HAL_OK)
+  {
+    Error_Handler();
+  }
+  sDate.WeekDay = RTC_WEEKDAY_MONDAY;
+  sDate.Month = RTC_MONTH_JANUARY;
+  sDate.Date = 0x1;
+  sDate.Year = 0x0;
+
+  if (HAL_RTC_SetDate(&hrtc, &sDate, RTC_FORMAT_BCD) != HAL_OK)
+  {
+    Error_Handler();
+  }
+  /* USER CODE BEGIN RTC_Init 2 */
+
+  /* USER CODE END RTC_Init 2 */
+
+}
+
 /**
   * @brief SDMMC1 Initialization Function
   * @param None

cubemx/Src/stm32h7xx_hal_msp.c

@@ -191,6 +191,62 @@ void HAL_QSPI_MspDeInit(QSPI_HandleTypeDef* hqspi)
 
 }
 
+/**
+  * @brief RTC MSP Initialization
+  * This function configures the hardware resources used in this example
+  * @param hrtc: RTC handle pointer
+  * @retval None
+  */
+void HAL_RTC_MspInit(RTC_HandleTypeDef* hrtc)
+{
+  RCC_PeriphCLKInitTypeDef PeriphClkInitStruct = {0};
+  if(hrtc->Instance==RTC)
+  {
+    /* USER CODE BEGIN RTC_MspInit 0 */
+
+    /* USER CODE END RTC_MspInit 0 */
+
+  /** Initializes the peripherals clock
+  */
+    PeriphClkInitStruct.PeriphClockSelection = RCC_PERIPHCLK_RTC;
+    PeriphClkInitStruct.RTCClockSelection = RCC_RTCCLKSOURCE_LSI;
+    if (HAL_RCCEx_PeriphCLKConfig(&PeriphClkInitStruct) != HAL_OK)
+    {
+      Error_Handler();
+    }
+
+    /* Peripheral clock enable */
+    __HAL_RCC_RTC_ENABLE();
+    /* USER CODE BEGIN RTC_MspInit 1 */
+
+    /* USER CODE END RTC_MspInit 1 */
+
+  }
+
+}
+
+/**
+  * @brief RTC MSP De-Initialization
+  * This function freeze the hardware resources used in this example
+  * @param hrtc: RTC handle pointer
+  * @retval None
+  */
+void HAL_RTC_MspDeInit(RTC_HandleTypeDef* hrtc)
+{
+  if(hrtc->Instance==RTC)
+  {
+    /* USER CODE BEGIN RTC_MspDeInit 0 */
+
+    /* USER CODE END RTC_MspDeInit 0 */
+    /* Peripheral clock disable */
+    __HAL_RCC_RTC_DISABLE();
+    /* USER CODE BEGIN RTC_MspDeInit 1 */
+
+    /* USER CODE END RTC_MspDeInit 1 */
+  }
+
+}
+
 /**
   * @brief SD MSP Initialization
   * This function configures the hardware resources used in this example