添加rtc，并打印时间time: 20:12:01

Core/Inc/stm32f1xx_hal_conf.h

@@ -57,7 +57,7 @@
 /*#define HAL_HCD_MODULE_ENABLED   */
 /*#define HAL_PWR_MODULE_ENABLED   */
 /*#define HAL_RCC_MODULE_ENABLED   */
-/*#define HAL_RTC_MODULE_ENABLED   */
+#define HAL_RTC_MODULE_ENABLED
 /*#define HAL_SD_MODULE_ENABLED   */
 /*#define HAL_MMC_MODULE_ENABLED   */
 /*#define HAL_SDRAM_MODULE_ENABLED   */

Core/Inc/stm32f1xx_it.h

@@ -55,6 +55,7 @@ void SVC_Handler(void);
 void DebugMon_Handler(void);
 void PendSV_Handler(void);
 void SysTick_Handler(void);
+void RTC_IRQHandler(void);
 void DMA1_Channel3_IRQHandler(void);
 void TIM3_IRQHandler(void);
 void USART2_IRQHandler(void);

Core/Src/main.c

@@ -40,6 +40,8 @@
 /* USER CODE END PM */
 
 /* Private variables ---------------------------------------------------------*/
+RTC_HandleTypeDef hrtc;
+
 UART_HandleTypeDef huart1;
 UART_HandleTypeDef huart2;
 UART_HandleTypeDef huart3;
@@ -50,6 +52,10 @@ uint8_t rx_buf[100] = {0};
 uint8_t totalData[30][100] = {0};
 uint8_t uart2_rx_byte[10] = {0};
 uint8_t workMode = 0;  // 0: 接收蓝牙数据 1: 使用lora发生数据。
+RTC_TimeTypeDef myTime = {0};
+uint8_t hour = 0;
+uint8_t minute = 0;
+uint8_t second = 0;
 /* USER CODE END PV */
 
 /* Private function prototypes -----------------------------------------------*/
@@ -59,6 +65,7 @@ static void MX_DMA_Init(void);
 static void MX_USART1_UART_Init(void);
 static void MX_USART2_UART_Init(void);
 static void MX_USART3_UART_Init(void);
+static void MX_RTC_Init(void);
 /* USER CODE BEGIN PFP */
 
 /* USER CODE END PFP */
@@ -122,12 +129,13 @@ int main(void)
   MX_USART1_UART_Init();
   MX_USART2_UART_Init();
   MX_USART3_UART_Init();
+  MX_RTC_Init();
   /* USER CODE BEGIN 2 */
   // 启动 USART2 DMA 接收
   HAL_UART_Receive_DMA(&huart3, rx_buf, sizeof(rx_buf));
   HAL_UART_Receive_IT(&huart2, uart2_rx_byte, 7);
   // 使能 USART2 空闲中断
-  __HAL_UART_ENABLE_IT(&huart3, UART_IT_IDLE);
+  // __HAL_UART_ENABLE_IT(&huart3, UART_IT_IDLE);
 
   printf("USART3 DMA + IDLE 中断接收已启动\r\n");
   // 发送一个字符串到UART2
@@ -169,18 +177,24 @@ int main(void)
 
     // const char *lora_data = "hello world\r\n";  // 建议加上回车换行
     // HAL_UART_Transmit(&huart2, (uint8_t *)lora_data, strlen(lora_data), HAL_MAX_DELAY);
-    if (workMode == 1)
-    {
-      if (i < 30)
-      {
-        // 启动 USART2 DMA 接收
-        HAL_UART_Transmit(&huart2, totalData[i], 8, HAL_MAX_DELAY);
-        i++;
-      }else {
-        i = 0;
-      }
-    }
-    HAL_Delay(500);
+    // if (workMode == 1)
+    // {
+    //   if (i < 30)
+    //   {
+    //     // 启动 USART2 DMA 接收
+    //     HAL_UART_Transmit(&huart2, totalData[i], 8, HAL_MAX_DELAY);
+    //     i++;
+    //   }else {
+    //     i = 0;
+    //   }
+    // }
+    HAL_RTC_GetTime(&hrtc, &myTime, RTC_FORMAT_BIN);
+    hour = myTime.Hours;
+    minute = myTime.Minutes;
+    second = myTime.Seconds;
+    printf("time: %02d:%02d:%02d\r\n", hour, minute, second);
+    // printf("main task\r\n");
+    HAL_Delay(2000);
     /* USER CODE BEGIN 3 */
   }
   /* USER CODE END 3 */
@@ -195,14 +209,16 @@ void SystemClock_Config(void)
 {
   RCC_OscInitTypeDef RCC_OscInitStruct = {0};
   RCC_ClkInitTypeDef RCC_ClkInitStruct = {0};
+  RCC_PeriphCLKInitTypeDef PeriphClkInit = {0};
 
   /** Initializes the RCC Oscillators according to the specified parameters
   * in the RCC_OscInitTypeDef structure.
   */
-  RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_HSE;
+  RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_LSI|RCC_OSCILLATORTYPE_HSE;
   RCC_OscInitStruct.HSEState = RCC_HSE_ON;
   RCC_OscInitStruct.HSEPredivValue = RCC_HSE_PREDIV_DIV1;
   RCC_OscInitStruct.HSIState = RCC_HSI_ON;
+  RCC_OscInitStruct.LSIState = RCC_LSI_ON;
   RCC_OscInitStruct.PLL.PLLState = RCC_PLL_ON;
   RCC_OscInitStruct.PLL.PLLSource = RCC_PLLSOURCE_HSE;
   RCC_OscInitStruct.PLL.PLLMUL = RCC_PLL_MUL9;
@@ -224,6 +240,70 @@ void SystemClock_Config(void)
   {
     Error_Handler();
   }
+  PeriphClkInit.PeriphClockSelection = RCC_PERIPHCLK_RTC;
+  PeriphClkInit.RTCClockSelection = RCC_RTCCLKSOURCE_LSI;
+  if (HAL_RCCEx_PeriphCLKConfig(&PeriphClkInit) != HAL_OK)
+  {
+    Error_Handler();
+  }
+}
+
+/**
+  * @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 DateToUpdate = {0};
+
+  /* USER CODE BEGIN RTC_Init 1 */
+
+  /* USER CODE END RTC_Init 1 */
+
+  /** Initialize RTC Only
+  */
+  hrtc.Instance = RTC;
+  hrtc.Init.AsynchPrediv = RTC_AUTO_1_SECOND;
+  hrtc.Init.OutPut = RTC_OUTPUTSOURCE_ALARM;
+  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 = 0x20;
+  sTime.Minutes = 0x10;
+  sTime.Seconds = 0x30;
+
+  if (HAL_RTC_SetTime(&hrtc, &sTime, RTC_FORMAT_BCD) != HAL_OK)
+  {
+    Error_Handler();
+  }
+  DateToUpdate.WeekDay = RTC_WEEKDAY_MONDAY;
+  DateToUpdate.Month = RTC_MONTH_JANUARY;
+  DateToUpdate.Date = 0x7;
+  DateToUpdate.Year = 0x0;
+
+  if (HAL_RTC_SetDate(&hrtc, &DateToUpdate, RTC_FORMAT_BCD) != HAL_OK)
+  {
+    Error_Handler();
+  }
+  /* USER CODE BEGIN RTC_Init 2 */
+
+  /* USER CODE END RTC_Init 2 */
+
 }
 
 /**

Core/Src/stm32f1xx_hal_msp.c

@@ -82,6 +82,60 @@ void HAL_MspInit(void)
   /* USER CODE END MspInit 1 */
 }
 
+/**
+  * @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)
+{
+  if(hrtc->Instance==RTC)
+  {
+    /* USER CODE BEGIN RTC_MspInit 0 */
+
+    /* USER CODE END RTC_MspInit 0 */
+    HAL_PWR_EnableBkUpAccess();
+    /* Enable BKP CLK enable for backup registers */
+    __HAL_RCC_BKP_CLK_ENABLE();
+    /* Peripheral clock enable */
+    __HAL_RCC_RTC_ENABLE();
+    /* RTC interrupt Init */
+    HAL_NVIC_SetPriority(RTC_IRQn, 0, 0);
+    HAL_NVIC_EnableIRQ(RTC_IRQn);
+    /* 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();
+
+    /* RTC interrupt DeInit */
+    HAL_NVIC_DisableIRQ(RTC_IRQn);
+    /* USER CODE BEGIN RTC_MspDeInit 1 */
+
+    /* USER CODE END RTC_MspDeInit 1 */
+  }
+
+}
+
 /**
   * @brief UART MSP Initialization
   * This function configures the hardware resources used in this example

Core/Src/stm32f1xx_it.c

@@ -59,6 +59,7 @@
 /* USER CODE END 0 */
 
 /* External variables --------------------------------------------------------*/
+extern RTC_HandleTypeDef hrtc;
 extern DMA_HandleTypeDef hdma_usart3_rx;
 extern UART_HandleTypeDef huart2;
 extern UART_HandleTypeDef huart3;
@@ -206,6 +207,20 @@ void SysTick_Handler(void)
 /* please refer to the startup file (startup_stm32f1xx.s).                    */
 /******************************************************************************/
 
+/**
+  * @brief This function handles RTC global interrupt.
+  */
+void RTC_IRQHandler(void)
+{
+  /* USER CODE BEGIN RTC_IRQn 0 */
+
+  /* USER CODE END RTC_IRQn 0 */
+  HAL_RTCEx_RTCIRQHandler(&hrtc);
+  /* USER CODE BEGIN RTC_IRQn 1 */
+
+  /* USER CODE END RTC_IRQn 1 */
+}
+
 /**
   * @brief This function handles DMA1 channel3 global interrupt.
   */
@@ -215,6 +230,7 @@ void DMA1_Channel3_IRQHandler(void)
 
   /* USER CODE END DMA1_Channel3_IRQn 0 */
   HAL_DMA_IRQHandler(&hdma_usart3_rx);
+  printf("我是RTC中断\r\n");
   /* USER CODE BEGIN DMA1_Channel3_IRQn 1 */
 
   /* USER CODE END DMA1_Channel3_IRQn 1 */

cmake/stm32cubemx/CMakeLists.txt

@@ -34,7 +34,8 @@ set(STM32_Drivers_Src
     ${CMAKE_CURRENT_SOURCE_DIR}/../../Drivers/STM32F1xx_HAL_Driver/Src/stm32f1xx_hal_gpio_ex.c
     ${CMAKE_CURRENT_SOURCE_DIR}/../../Drivers/STM32F1xx_HAL_Driver/Src/stm32f1xx_hal_tim.c
     ${CMAKE_CURRENT_SOURCE_DIR}/../../Drivers/STM32F1xx_HAL_Driver/Src/stm32f1xx_hal_tim_ex.c
-    ${CMAKE_CURRENT_SOURCE_DIR}/../../Drivers/STM32F1xx_HAL_Driver/Src/stm32f1xx_hal_uart.c
+    ${CMAKE_CURRENT_SOURCE_DIR}/../../Drivers/STM32F1xx_HAL_Driver/Src/stm32f1xx_hal_rtc.c
+    ${CMAKE_CURRENT_SOURCE_DIR}/../../Drivers/STM32F1xx_HAL_Driver/Src/stm32f1xx_hal_rtc_ex.c
     ${CMAKE_CURRENT_SOURCE_DIR}/../../Drivers/STM32F1xx_HAL_Driver/Src/stm32f1xx_hal.c
     ${CMAKE_CURRENT_SOURCE_DIR}/../../Drivers/STM32F1xx_HAL_Driver/Src/stm32f1xx_hal_rcc.c
     ${CMAKE_CURRENT_SOURCE_DIR}/../../Drivers/STM32F1xx_HAL_Driver/Src/stm32f1xx_hal_rcc_ex.c
@@ -45,6 +46,7 @@ set(STM32_Drivers_Src
     ${CMAKE_CURRENT_SOURCE_DIR}/../../Drivers/STM32F1xx_HAL_Driver/Src/stm32f1xx_hal_flash.c
     ${CMAKE_CURRENT_SOURCE_DIR}/../../Drivers/STM32F1xx_HAL_Driver/Src/stm32f1xx_hal_flash_ex.c
     ${CMAKE_CURRENT_SOURCE_DIR}/../../Drivers/STM32F1xx_HAL_Driver/Src/stm32f1xx_hal_exti.c
+    ${CMAKE_CURRENT_SOURCE_DIR}/../../Drivers/STM32F1xx_HAL_Driver/Src/stm32f1xx_hal_uart.c
 )
 
 # Drivers Midllewares

lora_bl.ioc

@@ -21,16 +21,19 @@ Mcu.Family=STM32F1
 Mcu.IP0=DMA
 Mcu.IP1=NVIC
 Mcu.IP2=RCC
-Mcu.IP3=SYS
-Mcu.IP4=USART1
-Mcu.IP5=USART2
-Mcu.IP6=USART3
-Mcu.IPNb=7
+Mcu.IP3=RTC
+Mcu.IP4=SYS
+Mcu.IP5=USART1
+Mcu.IP6=USART2
+Mcu.IP7=USART3
+Mcu.IPNb=8
 Mcu.Name=STM32F103C(8-B)Tx
 Mcu.Package=LQFP48
 Mcu.Pin0=PD0-OSC_IN
 Mcu.Pin1=PD1-OSC_OUT
-Mcu.Pin10=VP_SYS_VS_tim3
+Mcu.Pin10=VP_RTC_VS_RTC_Activate
+Mcu.Pin11=VP_RTC_VS_RTC_Calendar
+Mcu.Pin12=VP_SYS_VS_tim3
 Mcu.Pin2=PA2
 Mcu.Pin3=PA3
 Mcu.Pin4=PB10
@@ -39,7 +42,7 @@ Mcu.Pin6=PA9
 Mcu.Pin7=PA10
 Mcu.Pin8=PA13
 Mcu.Pin9=PA14
-Mcu.PinsNb=11
+Mcu.PinsNb=13
 Mcu.ThirdPartyNb=0
 Mcu.UserConstants=
 Mcu.UserName=STM32F103C8Tx
@@ -54,6 +57,7 @@ NVIC.MemoryManagement_IRQn=true\:0\:0\:false\:false\:true\:false\:false\:false
 NVIC.NonMaskableInt_IRQn=true\:0\:0\:false\:false\:true\:false\:false\:false
 NVIC.PendSV_IRQn=true\:0\:0\:false\:false\:true\:false\:false\:false
 NVIC.PriorityGroup=NVIC_PRIORITYGROUP_4
+NVIC.RTC_IRQn=true\:0\:0\:false\:false\:true\:true\:true\:true
 NVIC.SVCall_IRQn=true\:0\:0\:false\:false\:true\:false\:false\:false
 NVIC.SysTick_IRQn=true\:15\:0\:false\:false\:true\:false\:true\:false
 NVIC.TIM3_IRQn=true\:15\:0\:false\:false\:true\:false\:true\:true
@@ -136,12 +140,21 @@ RCC.SYSCLKSource=RCC_SYSCLKSOURCE_PLLCLK
 RCC.TimSysFreq_Value=36000000
 RCC.USBFreq_Value=72000000
 RCC.VCOOutput2Freq_Value=8000000
+RTC.Date=7
+RTC.Hours=20
+RTC.IPParameters=Hours,Minutes,Seconds,Date
+RTC.Minutes=10
+RTC.Seconds=30
 USART1.IPParameters=VirtualMode
 USART1.VirtualMode=VM_ASYNC
 USART2.IPParameters=VirtualMode
 USART2.VirtualMode=VM_ASYNC
 USART3.IPParameters=VirtualMode
 USART3.VirtualMode=VM_ASYNC
+VP_RTC_VS_RTC_Activate.Mode=RTC_Enabled
+VP_RTC_VS_RTC_Activate.Signal=RTC_VS_RTC_Activate
+VP_RTC_VS_RTC_Calendar.Mode=RTC_Calendar
+VP_RTC_VS_RTC_Calendar.Signal=RTC_VS_RTC_Calendar
 VP_SYS_VS_tim3.Mode=TIM3
 VP_SYS_VS_tim3.Signal=SYS_VS_tim3
 board=custom