初步实现RTC唤醒

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

@@ -61,6 +61,7 @@ void TIM3_IRQHandler(void);
 void TIM4_IRQHandler(void);
 void USART2_IRQHandler(void);
 void USART3_IRQHandler(void);
+void RTC_Alarm_IRQHandler(void);
 /* USER CODE BEGIN EFP */
 
 /* USER CODE END EFP */

Core/Src/main.c

@@ -47,6 +47,8 @@
 /* USER CODE END PM */
 
 /* Private variables ---------------------------------------------------------*/
+RTC_HandleTypeDef hrtc;
+
 TIM_HandleTypeDef htim4;
 
 UART_HandleTypeDef huart1;
@@ -77,6 +79,7 @@ static void MX_USART1_UART_Init(void);
 static void MX_USART2_UART_Init(void);
 static void MX_USART3_UART_Init(void);
 static void MX_TIM4_Init(void);
+static void MX_RTC_Init(void);
 /* USER CODE BEGIN PFP */
 
 /* USER CODE END PFP */
@@ -215,6 +218,46 @@ int main(void)
   MX_USART2_UART_Init();
   MX_USART3_UART_Init();
   MX_TIM4_Init();
+  MX_RTC_Init();
+
+  /* 设置初始时间 */
+  RTC_TimeTypeDef sTime = {0};
+  RTC_DateTypeDef sDate = {0};
+
+  sTime.Hours = 0x12;
+  sTime.Minutes = 0x00;
+  sTime.Seconds = 0x00;
+  HAL_RTC_SetTime(&hrtc, &sTime, RTC_FORMAT_BCD);
+
+  sDate.WeekDay = RTC_WEEKDAY_MONDAY;
+  sDate.Month = RTC_MONTH_SEPTEMBER;
+  sDate.Date = 0x16;
+  sDate.Year = 0x25;
+  HAL_RTC_SetDate(&hrtc, &sDate, RTC_FORMAT_BCD);
+
+  /* 设置第一次闹钟：20 秒后触发 */
+  RTC_AlarmTypeDef sAlarm = {0};
+  sAlarm.AlarmTime.Hours = sTime.Hours;
+  sAlarm.AlarmTime.Minutes = sTime.Minutes;
+  sAlarm.AlarmTime.Seconds = (sTime.Seconds + 20) % 60;
+  // sAlarm.AlarmMask = 0;
+  sAlarm.Alarm = RTC_ALARM_A;
+
+  HAL_RTC_SetAlarm_IT(&hrtc, &sAlarm, RTC_FORMAT_BCD);
+
+
+  while (TRUE) {
+    // HAL_PWR_EnterSLEEPMode(PWR_MAINREGULATOR_ON, PWR_SLEEPENTRY_WFI);
+    HAL_SuspendTick();   // 停止 SysTick 中断
+    __WFI();             // 真正进入 Sleep
+    HAL_ResumeTick();    // 唤醒后恢复 SysTick
+    printf("wwww122\r\n");
+    break;
+  }
+  while (TRUE) {
+    printf("111\r\n");
+    HAL_Delay(1000);
+  }
   /* USER CODE BEGIN 2 */
   // 启动 USART2 DMA 接收
   HAL_UART_Receive_DMA(&huart3, rx_buf, sizeof(rx_buf));
@@ -398,13 +441,15 @@ 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_HSE|RCC_OSCILLATORTYPE_LSE;
   RCC_OscInitStruct.HSEState = RCC_HSE_ON;
   RCC_OscInitStruct.HSEPredivValue = RCC_HSE_PREDIV_DIV1;
+  RCC_OscInitStruct.LSEState = RCC_LSE_ON;
   RCC_OscInitStruct.HSIState = RCC_HSI_ON;
   RCC_OscInitStruct.PLL.PLLState = RCC_PLL_ON;
   RCC_OscInitStruct.PLL.PLLSource = RCC_PLLSOURCE_HSE;
@@ -427,6 +472,70 @@ void SystemClock_Config(void)
   {
     Error_Handler();
   }
+  PeriphClkInit.PeriphClockSelection = RCC_PERIPHCLK_RTC;
+  PeriphClkInit.RTCClockSelection = RCC_RTCCLKSOURCE_LSE;
+  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 = 0x0;
+  sTime.Minutes = 0x0;
+  sTime.Seconds = 0x0;
+
+  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 = 0x1;
+  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 */
+
 }
 
 /**
@@ -604,6 +713,7 @@ static void MX_GPIO_Init(void)
   /* USER CODE END MX_GPIO_Init_1 */
 
   /* GPIO Ports Clock Enable */
+  __HAL_RCC_GPIOC_CLK_ENABLE();
   __HAL_RCC_GPIOD_CLK_ENABLE();
   __HAL_RCC_GPIOA_CLK_ENABLE();
   __HAL_RCC_GPIOB_CLK_ENABLE();

Core/Src/stm32f1xx_hal_msp.c

@@ -84,6 +84,60 @@ 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_Alarm_IRQn, 0, 0);
+    HAL_NVIC_EnableIRQ(RTC_Alarm_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_Alarm_IRQn);
+    /* USER CODE BEGIN RTC_MspDeInit 1 */
+
+    /* USER CODE END RTC_MspDeInit 1 */
+  }
+
+}
+
 /**
   * @brief TIM_Base MSP Initialization
   * This function configures the hardware resources used in this example

Core/Src/stm32f1xx_it.c

@@ -61,6 +61,7 @@
 /* USER CODE END 0 */
 
 /* External variables --------------------------------------------------------*/
+extern RTC_HandleTypeDef hrtc;
 extern TIM_HandleTypeDef htim4;
 extern DMA_HandleTypeDef hdma_usart2_rx;
 extern DMA_HandleTypeDef hdma_usart3_rx;
@@ -364,6 +365,21 @@ void USART3_IRQHandler(void)
   /* USER CODE END USART3_IRQn 1 */
 }
 
+/**
+  * @brief This function handles RTC alarm interrupt through EXTI line 17.
+  */
+void RTC_Alarm_IRQHandler(void)
+{
+  /* USER CODE BEGIN RTC_Alarm_IRQn 0 */
+
+  /* USER CODE END RTC_Alarm_IRQn 0 */
+  HAL_RTC_AlarmIRQHandler(&hrtc);
+  printf("hello world\r\n");
+  /* USER CODE BEGIN RTC_Alarm_IRQn 1 */
+
+  /* USER CODE END RTC_Alarm_IRQn 1 */
+}
+
 /* USER CODE BEGIN 1 */
 
 /* USER CODE END 1 */

cmake/stm32cubemx/CMakeLists.txt

@@ -34,6 +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_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

lora_bl.ioc

@@ -31,27 +31,32 @@ Mcu.Family=STM32F1
 Mcu.IP0=DMA
 Mcu.IP1=NVIC
 Mcu.IP2=RCC
-Mcu.IP3=SYS
-Mcu.IP4=TIM4
-Mcu.IP5=USART1
-Mcu.IP6=USART2
-Mcu.IP7=USART3
-Mcu.IPNb=8
+Mcu.IP3=RTC
+Mcu.IP4=SYS
+Mcu.IP5=TIM4
+Mcu.IP6=USART1
+Mcu.IP7=USART2
+Mcu.IP8=USART3
+Mcu.IPNb=9
 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.Pin11=VP_TIM4_VS_ClockSourceINT
-Mcu.Pin2=PA2
-Mcu.Pin3=PA3
-Mcu.Pin4=PB10
-Mcu.Pin5=PB11
-Mcu.Pin6=PA9
-Mcu.Pin7=PA10
-Mcu.Pin8=PA13
-Mcu.Pin9=PA14
-Mcu.PinsNb=12
+Mcu.Pin0=PC14-OSC32_IN
+Mcu.Pin1=PC15-OSC32_OUT
+Mcu.Pin10=PA13
+Mcu.Pin11=PA14
+Mcu.Pin12=VP_RTC_VS_RTC_Activate
+Mcu.Pin13=VP_RTC_VS_RTC_Calendar
+Mcu.Pin14=VP_SYS_VS_tim3
+Mcu.Pin15=VP_TIM4_VS_ClockSourceINT
+Mcu.Pin2=PD0-OSC_IN
+Mcu.Pin3=PD1-OSC_OUT
+Mcu.Pin4=PA2
+Mcu.Pin5=PA3
+Mcu.Pin6=PB10
+Mcu.Pin7=PB11
+Mcu.Pin8=PA9
+Mcu.Pin9=PA10
+Mcu.PinsNb=16
 Mcu.ThirdPartyNb=0
 Mcu.UserConstants=
 Mcu.UserName=STM32F103C8Tx
@@ -67,6 +72,7 @@ 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_Alarm_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
@@ -92,6 +98,10 @@ PB10.Mode=Asynchronous
 PB10.Signal=USART3_TX
 PB11.Mode=Asynchronous
 PB11.Signal=USART3_RX
+PC14-OSC32_IN.Mode=LSE-External-Oscillator
+PC14-OSC32_IN.Signal=RCC_OSC32_IN
+PC15-OSC32_OUT.Mode=LSE-External-Oscillator
+PC15-OSC32_OUT.Signal=RCC_OSC32_OUT
 PD0-OSC_IN.Mode=HSE-External-Oscillator
 PD0-OSC_IN.Signal=RCC_OSC_IN
 PD1-OSC_OUT.Mode=HSE-External-Oscillator
@@ -128,7 +138,7 @@ ProjectManager.ToolChainLocation=
 ProjectManager.UAScriptAfterPath=
 ProjectManager.UAScriptBeforePath=
 ProjectManager.UnderRoot=false
-ProjectManager.functionlistsort=1-SystemClock_Config-RCC-false-HAL-false,2-MX_GPIO_Init-GPIO-false-HAL-true,3-MX_DMA_Init-DMA-false-HAL-true,4-MX_USART1_UART_Init-USART1-false-HAL-true,5-MX_USART2_UART_Init-USART2-false-HAL-true,6-MX_USART3_UART_Init-USART3-false-HAL-true,7-MX_TIM4_Init-TIM4-false-HAL-true
+ProjectManager.functionlistsort=1-SystemClock_Config-RCC-false-HAL-false,2-MX_GPIO_Init-GPIO-false-HAL-true,3-MX_DMA_Init-DMA-false-HAL-true,4-MX_USART1_UART_Init-USART1-false-HAL-true,5-MX_USART2_UART_Init-USART2-false-HAL-true,6-MX_USART3_UART_Init-USART3-false-HAL-true,7-MX_TIM4_Init-TIM4-false-HAL-true,8-MX_RTC_Init-RTC-false-HAL-true
 RCC.ADCFreqValue=36000000
 RCC.AHBFreq_Value=72000000
 RCC.APB1CLKDivider=RCC_HCLK_DIV2
@@ -139,12 +149,14 @@ RCC.APB2TimFreq_Value=72000000
 RCC.FCLKCortexFreq_Value=72000000
 RCC.FamilyName=M
 RCC.HCLKFreq_Value=72000000
-RCC.IPParameters=ADCFreqValue,AHBFreq_Value,APB1CLKDivider,APB1Freq_Value,APB1TimFreq_Value,APB2Freq_Value,APB2TimFreq_Value,FCLKCortexFreq_Value,FamilyName,HCLKFreq_Value,MCOFreq_Value,PLLCLKFreq_Value,PLLMCOFreq_Value,PLLMUL,PLLSourceVirtual,SYSCLKFreq_VALUE,SYSCLKSource,TimSysFreq_Value,USBFreq_Value,VCOOutput2Freq_Value
+RCC.IPParameters=ADCFreqValue,AHBFreq_Value,APB1CLKDivider,APB1Freq_Value,APB1TimFreq_Value,APB2Freq_Value,APB2TimFreq_Value,FCLKCortexFreq_Value,FamilyName,HCLKFreq_Value,MCOFreq_Value,PLLCLKFreq_Value,PLLMCOFreq_Value,PLLMUL,PLLSourceVirtual,RTCClockSelection,RTCFreq_Value,SYSCLKFreq_VALUE,SYSCLKSource,TimSysFreq_Value,USBFreq_Value,VCOOutput2Freq_Value
 RCC.MCOFreq_Value=72000000
 RCC.PLLCLKFreq_Value=72000000
 RCC.PLLMCOFreq_Value=36000000
 RCC.PLLMUL=RCC_PLL_MUL9
 RCC.PLLSourceVirtual=RCC_PLLSOURCE_HSE
+RCC.RTCClockSelection=RCC_RTCCLKSOURCE_LSE
+RCC.RTCFreq_Value=32768
 RCC.SYSCLKFreq_VALUE=72000000
 RCC.SYSCLKSource=RCC_SYSCLKSOURCE_PLLCLK
 RCC.TimSysFreq_Value=72000000
@@ -160,6 +172,10 @@ 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
 VP_TIM4_VS_ClockSourceINT.Mode=Internal