141 lines
3.5 KiB
C
141 lines
3.5 KiB
C
/* USER CODE BEGIN Header */
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/**
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******************************************************************************
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* @file rtc.c
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* @brief This file provides code for the configuration
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* of the RTC instances.
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******************************************************************************
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* @attention
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*
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* Copyright (c) 2024 STMicroelectronics.
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* All rights reserved.
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*
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* This software is licensed under terms that can be found in the LICENSE file
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* in the root directory of this software component.
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* If no LICENSE file comes with this software, it is provided AS-IS.
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*
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******************************************************************************
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*/
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/* USER CODE END Header */
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/* Includes ------------------------------------------------------------------*/
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#include "rtc.h"
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/* USER CODE BEGIN 0 */
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/* USER CODE END 0 */
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RTC_HandleTypeDef hrtc;
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/* RTC init function */
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void MX_RTC_Init(void)
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{
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/* USER CODE BEGIN RTC_Init 0 */
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/* USER CODE END RTC_Init 0 */
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RTC_TimeTypeDef sTime = {0};
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RTC_DateTypeDef DateToUpdate = {0};
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/* USER CODE BEGIN RTC_Init 1 */
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/* USER CODE END RTC_Init 1 */
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/** Initialize RTC Only
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*/
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hrtc.Instance = RTC;
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hrtc.Init.AsynchPrediv = RTC_AUTO_1_SECOND;
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hrtc.Init.OutPut = RTC_OUTPUTSOURCE_ALARM;
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if (HAL_RTC_Init(&hrtc) != HAL_OK)
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{
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Error_Handler();
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}
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/* USER CODE BEGIN Check_RTC_BKUP */
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__HAL_RTC_SECOND_ENABLE_IT(&hrtc, RTC_IT_SEC);
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if (HAL_RTCEx_BKUPRead(&hrtc, RTC_BKP_DR1) == 0x1234) {
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// 从备份寄存器还原日期
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hrtc.DateToUpdate.Year = HAL_RTCEx_BKUPRead(&hrtc, RTC_BKP_DR2);
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hrtc.DateToUpdate.Month = HAL_RTCEx_BKUPRead(&hrtc, RTC_BKP_DR3);
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hrtc.DateToUpdate.Date = HAL_RTCEx_BKUPRead(&hrtc, RTC_BKP_DR4);
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// 把RTC计数单元的计数值更新到日期
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HAL_RTC_GetTime(&hrtc, &sTime, RTC_FORMAT_BIN);
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return;
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}
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/* USER CODE END Check_RTC_BKUP */
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/** Initialize RTC and set the Time and Date
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*/
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sTime.Hours = 0;
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sTime.Minutes = 0;
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sTime.Seconds = 0;
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if (HAL_RTC_SetTime(&hrtc, &sTime, RTC_FORMAT_BIN) != HAL_OK)
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{
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Error_Handler();
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}
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DateToUpdate.WeekDay = RTC_WEEKDAY_MONDAY;
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DateToUpdate.Month = RTC_MONTH_JANUARY;
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DateToUpdate.Date = 1;
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DateToUpdate.Year = 0;
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if (HAL_RTC_SetDate(&hrtc, &DateToUpdate, RTC_FORMAT_BIN) != HAL_OK)
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{
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Error_Handler();
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}
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/* USER CODE BEGIN RTC_Init 2 */
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HAL_RTCEx_BKUPWrite(&hrtc,RTC_BKP_DR1,0x1234);
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/* USER CODE END RTC_Init 2 */
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}
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void HAL_RTC_MspInit(RTC_HandleTypeDef* rtcHandle)
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{
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if(rtcHandle->Instance==RTC)
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{
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/* USER CODE BEGIN RTC_MspInit 0 */
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/* USER CODE END RTC_MspInit 0 */
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HAL_PWR_EnableBkUpAccess();
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/* Enable BKP CLK enable for backup registers */
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__HAL_RCC_BKP_CLK_ENABLE();
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/* RTC clock enable */
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__HAL_RCC_RTC_ENABLE();
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/* RTC interrupt Init */
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HAL_NVIC_SetPriority(RTC_IRQn, 3, 0);
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HAL_NVIC_EnableIRQ(RTC_IRQn);
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HAL_NVIC_SetPriority(RTC_Alarm_IRQn, 3, 0);
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HAL_NVIC_EnableIRQ(RTC_Alarm_IRQn);
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/* USER CODE BEGIN RTC_MspInit 1 */
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/* USER CODE END RTC_MspInit 1 */
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}
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}
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void HAL_RTC_MspDeInit(RTC_HandleTypeDef* rtcHandle)
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{
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if(rtcHandle->Instance==RTC)
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{
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/* USER CODE BEGIN RTC_MspDeInit 0 */
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/* USER CODE END RTC_MspDeInit 0 */
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/* Peripheral clock disable */
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__HAL_RCC_RTC_DISABLE();
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/* RTC interrupt Deinit */
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HAL_NVIC_DisableIRQ(RTC_IRQn);
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HAL_NVIC_DisableIRQ(RTC_Alarm_IRQn);
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/* USER CODE BEGIN RTC_MspDeInit 1 */
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/* USER CODE END RTC_MspDeInit 1 */
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}
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}
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/* USER CODE BEGIN 1 */
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/* USER CODE END 1 */
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