Thursday, September 24, 2020

STM32F407VET6 RTC example code

 /* USER CODE BEGIN Header */

/**

  ******************************************************************************

  * @file           : main.c

  * @brief          : Main program body

  ******************************************************************************

  * @attention

  *

  * <h2><center>&copy; Copyright (c) 2020 STMicroelectronics.

  * All rights reserved.</center></h2>

  *

  * This software component is licensed by ST under BSD 3-Clause license,

  * the "License"; You may not use this file except in compliance with the

  * License. You may obtain a copy of the License at:

  *                        opensource.org/licenses/BSD-3-Clause

  *

  ******************************************************************************

  */

/* USER CODE END Header */


/* Includes ------------------------------------------------------------------*/

#include "main.h"


/* Private includes ----------------------------------------------------------*/

/* USER CODE BEGIN Includes */


/* USER CODE END Includes */


/* Private typedef -----------------------------------------------------------*/

/* USER CODE BEGIN PTD */

RTC_TimeTypeDef sTime = {0};

RTC_DateTypeDef sDate = {0};

RTC_AlarmTypeDef sAlarm = {0};


/* USER CODE END PTD */


/* Private define ------------------------------------------------------------*/

/* USER CODE BEGIN PD */

/* USER CODE END PD */


/* Private macro -------------------------------------------------------------*/

/* USER CODE BEGIN PM */


/* USER CODE END PM */


/* Private variables ---------------------------------------------------------*/

RTC_HandleTypeDef hrtc;


/* USER CODE BEGIN PV */


/* USER CODE END PV */


/* Private function prototypes -----------------------------------------------*/

void SystemClock_Config(void);

static void MX_RTC_Init(void);

/* USER CODE BEGIN PFP */


/* USER CODE END PFP */


/* Private user code ---------------------------------------------------------*/

/* USER CODE BEGIN 0 */


/* USER CODE END 0 */


/**

  * @brief  The application entry point.

  * @retval int

  */

int main(void)

{

  /* USER CODE BEGIN 1 */


  /* USER CODE END 1 */

  


  /* MCU Configuration--------------------------------------------------------*/


  /* Reset of all peripherals, Initializes the Flash interface and the Systick. */

  HAL_Init();


  /* USER CODE BEGIN Init */


  /* USER CODE END Init */


  /* Configure the system clock */

  SystemClock_Config();


  /* USER CODE BEGIN SysInit */


  /* USER CODE END SysInit */


  /* Initialize all configured peripherals */

  MX_RTC_Init();

  /* USER CODE BEGIN 2 */

sTime.Hours = 11;

  sTime.Minutes = 17;

  sTime.Seconds = 10;

HAL_RTC_SetTime(&hrtc, &sTime, RTC_FORMAT_BIN);

sDate.WeekDay = RTC_WEEKDAY_FRIDAY;

  sDate.Month = RTC_MONTH_SEPTEMBER;

  sDate.Date = 25;

  sDate.Year = 2020;

HAL_RTC_SetDate(&hrtc,&sDate,  RTC_FORMAT_BIN);

HAL_Delay(200);

  /* USER CODE END 2 */


  /* Infinite loop */

  /* USER CODE BEGIN WHILE */

  while (1)

  {

    /* USER CODE END WHILE */

HAL_RTC_GetTime(&hrtc, &sTime, RTC_FORMAT_BIN);

HAL_RTC_GetDate(&hrtc,&sDate,  RTC_FORMAT_BIN);

HAL_Delay(200);

    /* USER CODE BEGIN 3 */

  }

  /* USER CODE END 3 */

}


/**

  * @brief System Clock Configuration

  * @retval None

  */

void SystemClock_Config(void)

{

  RCC_OscInitTypeDef RCC_OscInitStruct = {0};

  RCC_ClkInitTypeDef RCC_ClkInitStruct = {0};

  RCC_PeriphCLKInitTypeDef PeriphClkInitStruct = {0};


  /** Configure the main internal regulator output voltage 

  */

  __HAL_RCC_PWR_CLK_ENABLE();

  __HAL_PWR_VOLTAGESCALING_CONFIG(PWR_REGULATOR_VOLTAGE_SCALE1);

  /** Initializes the CPU, AHB and APB busses clocks 

  */

  RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_HSI|RCC_OSCILLATORTYPE_LSI;

  RCC_OscInitStruct.HSIState = RCC_HSI_ON;

  RCC_OscInitStruct.HSICalibrationValue = RCC_HSICALIBRATION_DEFAULT;

  RCC_OscInitStruct.LSIState = RCC_LSI_ON;

  RCC_OscInitStruct.PLL.PLLState = RCC_PLL_NONE;

  if (HAL_RCC_OscConfig(&RCC_OscInitStruct) != HAL_OK)

  {

    Error_Handler();

  }

  /** Initializes the CPU, AHB and APB busses clocks 

  */

  RCC_ClkInitStruct.ClockType = RCC_CLOCKTYPE_HCLK|RCC_CLOCKTYPE_SYSCLK

                              |RCC_CLOCKTYPE_PCLK1|RCC_CLOCKTYPE_PCLK2;

  RCC_ClkInitStruct.SYSCLKSource = RCC_SYSCLKSOURCE_HSI;

  RCC_ClkInitStruct.AHBCLKDivider = RCC_SYSCLK_DIV1;

  RCC_ClkInitStruct.APB1CLKDivider = RCC_HCLK_DIV1;

  RCC_ClkInitStruct.APB2CLKDivider = RCC_HCLK_DIV1;


  if (HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_0) != HAL_OK)

  {

    Error_Handler();

  }

  PeriphClkInitStruct.PeriphClockSelection = RCC_PERIPHCLK_RTC;

  PeriphClkInitStruct.RTCClockSelection = RCC_RTCCLKSOURCE_LSI;

  if (HAL_RCCEx_PeriphCLKConfig(&PeriphClkInitStruct) != 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 sDate = {0};

  RTC_AlarmTypeDef sAlarm = {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;

  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 = 10;

  sTime.Minutes = 35;

  sTime.Seconds = 10;

  sTime.DayLightSaving = RTC_DAYLIGHTSAVING_NONE;

  sTime.StoreOperation = RTC_STOREOPERATION_RESET;

  if (HAL_RTC_SetTime(&hrtc, &sTime, RTC_FORMAT_BIN) != HAL_OK)

  {

    Error_Handler();

  }

  sDate.WeekDay = RTC_WEEKDAY_FRIDAY;

  sDate.Month = RTC_MONTH_SEPTEMBER;

  sDate.Date = 25;

  sDate.Year = 2020;


  if (HAL_RTC_SetDate(&hrtc, &sDate, RTC_FORMAT_BIN) != HAL_OK)

  {

    Error_Handler();

  }

  /** Enable the Alarm A 

  */

  sAlarm.AlarmTime.Hours = 0;

  sAlarm.AlarmTime.Minutes = 0;

  sAlarm.AlarmTime.Seconds = 0;

  sAlarm.AlarmTime.SubSeconds = 0;

  sAlarm.AlarmTime.DayLightSaving = RTC_DAYLIGHTSAVING_NONE;

  sAlarm.AlarmTime.StoreOperation = RTC_STOREOPERATION_RESET;

  sAlarm.AlarmMask = RTC_ALARMMASK_NONE;

  sAlarm.AlarmSubSecondMask = RTC_ALARMSUBSECONDMASK_ALL;

  sAlarm.AlarmDateWeekDaySel = RTC_ALARMDATEWEEKDAYSEL_DATE;

  sAlarm.AlarmDateWeekDay = 1;

  sAlarm.Alarm = RTC_ALARM_A;

  if (HAL_RTC_SetAlarm_IT(&hrtc, &sAlarm, RTC_FORMAT_BIN) != HAL_OK)

  {

    Error_Handler();

  }

  /* USER CODE BEGIN RTC_Init 2 */


  /* USER CODE END RTC_Init 2 */


}


/* USER CODE BEGIN 4 */


/* USER CODE END 4 */


/**

  * @brief  This function is executed in case of error occurrence.

  * @retval None

  */

void Error_Handler(void)

{

  /* USER CODE BEGIN Error_Handler_Debug */

  /* User can add his own implementation to report the HAL error return state */


  /* USER CODE END Error_Handler_Debug */

}


#ifdef  USE_FULL_ASSERT

/**

  * @brief  Reports the name of the source file and the source line number

  *         where the assert_param error has occurred.

  * @param  file: pointer to the source file name

  * @param  line: assert_param error line source number

  * @retval None

  */

void assert_failed(uint8_t *file, uint32_t line)

  /* USER CODE BEGIN 6 */

  /* User can add his own implementation to report the file name and line number,

     tex: printf("Wrong parameters value: file %s on line %d\r\n", file, line) */

  /* USER CODE END 6 */

}

#endif /* USE_FULL_ASSERT */


/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/



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