[STM32U5] 【NUCLEO-U5A5ZJ-Q测评】超简单的RTC实验

/* USER CODE END Header_StartTask02 */

void StartTask02(void *argument)

{

  /* USER CODE BEGIN myTask02 */

  uint8_t show_str[20];

  uint8_t show_data[20];

  uint8_t show_time[20];

  uint32_t mytick;

  RTC_DateTypeDef GetData;  //获取日期结构�?



  RTC_TimeTypeDef GetTime;   //获取时间结构�?



  /* Infinite loop */

  for(;;)

  {

          mytick = HAL_GetTick();

          sprintf(show_str,"run times:%d",mytick/1000);

          ILI9488_printText(show_str,10,40,ILI9488_BLACK,ILI9488_WHITE,2);

          /* Get the RTC current Time */

          HAL_RTC_GetTime(&hrtc, &GetTime, RTC_FORMAT_BIN);

      /* Get the RTC current Date */

      HAL_RTC_GetDate(&hrtc, &GetData, RTC_FORMAT_BIN);

      sprintf(show_data, "%04d/%02d/%02d",2000 + GetData.Year, GetData.Month, GetData.Date);

      ILI9488_printText(show_data,10,60,ILI9488_BLACK,ILI9488_WHITE,2);

      sprintf(show_time, "%02d:%02d:%02d",GetTime.Hours, GetTime.Minutes, GetTime.Seconds);

      ILI9488_printText(show_time,10,80,ILI9488_BLACK,ILI9488_WHITE,2);



    osDelay(1000);

  }

  /* USER CODE END myTask02 */

}

/* RTC init function */

void MX_RTC_Init(void)

{



  /* USER CODE BEGIN RTC_Init 0 */

        RTC_TimeTypeDef time;   //时间结构体参�?

        RTC_DateTypeDef datebuff;   //日期结构体参�?

  /* USER CODE END RTC_Init 0 */



  RTC_PrivilegeStateTypeDef privilegeState = {0};

  RTC_TimeTypeDef sTime = {0};

  RTC_DateTypeDef sDate = {0};



  /* USER CODE BEGIN RTC_Init 1 */

  __HAL_RCC_PWR_CLK_ENABLE();                  //�?启电源时�?

  /* 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.OutPutRemap = RTC_OUTPUT_REMAP_NONE;

  hrtc.Init.OutPutPolarity = RTC_OUTPUT_POLARITY_HIGH;

  hrtc.Init.OutPutType = RTC_OUTPUT_TYPE_OPENDRAIN;

  hrtc.Init.OutPutPullUp = RTC_OUTPUT_PULLUP_NONE;

  hrtc.Init.BinMode = RTC_BINARY_NONE;

  if (HAL_RTC_Init(&hrtc) != HAL_OK)

  {

    Error_Handler();

  }

  privilegeState.rtcPrivilegeFull = RTC_PRIVILEGE_FULL_NO;

  privilegeState.rtcPrivilegeFeatures = RTC_PRIVILEGE_FEATURE_INIT;

  privilegeState.backupRegisterPrivZone = RTC_PRIVILEGE_BKUP_ZONE_1;

  privilegeState.backupRegisterStartZone2 = RTC_BKP_DR0;

  privilegeState.backupRegisterStartZone3 = RTC_BKP_DR0;

  if (HAL_RTCEx_PrivilegeModeSet(&hrtc, &privilegeState) != HAL_OK)

  {

    Error_Handler();

  }



  /* USER CODE BEGIN Check_RTC_BKUP */

  if(HAL_RTCEx_BKUPRead(&hrtc,RTC_BKP_DR1)!= 0x5051)

          {



  /* USER CODE END Check_RTC_BKUP */



  /** Initialize RTC and set the Time and Date

  */

  sTime.Hours = 0x16;

  sTime.Minutes = 0x6;

  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_NOVEMBER;

  sDate.Date = 0x13;

  sDate.Year = 0x23;



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

  {

    Error_Handler();

  }

  /* USER CODE BEGIN RTC_Init 2 */

          datebuff = sDate;  //把日期数据拷贝到自己定义的data�?

          HAL_RTCEx_BKUPWrite(&hrtc, RTC_BKP_DR1, 0x5051);//向指定的后备区域寄存器写入数�?

          HAL_RTCEx_BKUPWrite(&hrtc, RTC_BKP_DR2, (uint16_t)datebuff.Year);

          HAL_RTCEx_BKUPWrite(&hrtc, RTC_BKP_DR3, (uint16_t)datebuff.Month);

          HAL_RTCEx_BKUPWrite(&hrtc, RTC_BKP_DR4, (uint16_t)datebuff.Date);

          HAL_RTCEx_BKUPWrite(&hrtc, RTC_BKP_DR5, (uint16_t)datebuff.WeekDay);



    }

          else

          {

                  datebuff.Year    = HAL_RTCEx_BKUPRead(&hrtc, RTC_BKP_DR2);

                  datebuff.Month   = HAL_RTCEx_BKUPRead(&hrtc, RTC_BKP_DR3);

                  datebuff.Date    = HAL_RTCEx_BKUPRead(&hrtc, RTC_BKP_DR4);

                  datebuff.WeekDay = HAL_RTCEx_BKUPRead(&hrtc, RTC_BKP_DR5);

                  sDate = datebuff;

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

                  {

                          Error_Handler();

                  }



          }



  /* USER CODE END RTC_Init 2 */



}