STemWin_SampleDemo
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Outline
Includes
#include "rtc.h"
Private defines
#define RTC_ASYNCH_PREDIV
#define RTC_SYNCH_PREDIV
RtcHandle
RTC_Init()
HAL_RTC_MspInit(RTC_HandleTypeDef *)
HAL_RTC_MspDeInit(RTC_HandleTypeDef *)
BACKUP_SaveParameter(uint32_t, uint32_t)
BACKUP_RestoreParameter(uint32_t)
Files
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SourceVuSTM32 Libraries and SamplesSTemWin_SampleDemoSTemWin/Target/rtc.c
 
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/** ****************************************************************************** * @file rtc.c * @author MCD Application Team * @brief <Add here what does this driver do> ****************************************************************************** * @attention * * Copyright (c) 2017 STMicroelectronics. * All rights reserved. * * This software is licensed under terms that can be found in the LICENSE file * in the root directory of this software component. * If no LICENSE file comes with this software, it is provided AS-IS. * ****************************************************************************** *//* ... */ /* Includes ------------------------------------------------------------------*/ #include "rtc.h" /** @addtogroup MAIN_GROUP< OPTIONAL > * @{ *//* ... */ /** @defgroup SUB_GROUP< OPTIONAL > * @brief * @{ *//* ... */ Includes /* External variables --------------------------------------------------------*/ /* Private typedef -----------------------------------------------------------*/ /* Private defines -----------------------------------------------------------*/ #define RTC_ASYNCH_PREDIV 0x7F /* LSE as RTC clock */ #define RTC_SYNCH_PREDIV 0x00FF /* LSE as RTC clock */ Private defines/* Private macros ------------------------------------------------------------*/ /* Private variables ---------------------------------------------------------*/ RTC_HandleTypeDef RtcHandle; /** * @brief Configure the current time and date. * @param None * @retval None *//* ... */ void RTC_Init(void) { /*##-1- Configure the RTC peripheral #######################################*/ /* Configure RTC prescaler and RTC data registers */ /* RTC configured as follow: - Hour Format = Format 24 - Asynch Prediv = Value according to source clock - Synch Prediv = Value according to source clock - OutPut = Output Disable - OutPutPolarity = High Polarity - OutPutType = Open Drain *//* ... */ RtcHandle.Instance = RTC; RtcHandle.Init.HourFormat = RTC_HOURFORMAT_24; RtcHandle.Init.AsynchPrediv = RTC_ASYNCH_PREDIV; RtcHandle.Init.SynchPrediv = RTC_SYNCH_PREDIV; RtcHandle.Init.OutPut = RTC_OUTPUT_DISABLE; RtcHandle.Init.OutPutPolarity = RTC_OUTPUT_POLARITY_HIGH; RtcHandle.Init.OutPutType = RTC_OUTPUT_TYPE_OPENDRAIN; if(HAL_RTC_Init(&RtcHandle) != HAL_OK) { }if (HAL_RTC_Init(&RtcHandle) != HAL_OK) { ... } }{ ... } /** * @brief RTC MSP Initialization * This function configures the hardware resources used in this application: * - Peripheral's clock enable * @param hrtc: RTC handle pointer * @retval None *//* ... */ void HAL_RTC_MspInit(RTC_HandleTypeDef *hrtc) { RCC_OscInitTypeDef Osc; /*##-1- Configure LSE as RTC clock source ###################################*/ Osc.OscillatorType = RCC_OSCILLATORTYPE_LSE; Osc.LSEState = RCC_LSE_ON; Osc.HSIState = RCC_HSI_OFF; Osc.HSICalibrationValue = 0; Osc.LSIState = RCC_LSI_OFF; Osc.PLL.PLLState = RCC_PLL_NONE; HAL_RCC_OscConfig(&Osc); __HAL_RCC_RTC_CLKPRESCALER(RCC_RTCCLKSOURCE_LSE); __HAL_RCC_RTC_CONFIG(RCC_RTCCLKSOURCE_LSE); /*##-2- Enable RTC peripheral Clocks #######################################*/ /* Enable RTC Clock */ __HAL_RCC_RTC_ENABLE(); }{ ... } /** * @brief RTC MSP De-Initialization * This function frees the hardware resources used in this application: * - Disable the Peripheral's clock * @param hrtc: RTC handle pointer * @retval None *//* ... */ void HAL_RTC_MspDeInit(RTC_HandleTypeDef *hrtc) { /*##-1- Reset peripherals ##################################################*/ __HAL_RCC_RTC_DISABLE(); }{ ... } /** * @brief RTC MSP De-Initialization * This function frees the hardware resources used in this application: * - Disable the Peripheral's clock * @param hrtc: RTC handle pointer * @retval None *//* ... */ void BACKUP_SaveParameter(uint32_t address, uint32_t data) { HAL_RTCEx_BKUPWrite(&RtcHandle,address,data); }{ ... } /** * @brief RTC MSP De-Initialization * This function frees the hardware resources used in this application: * - Disable the Peripheral's clock * @param hrtc: RTC handle pointer * @retval None *//* ... */ uint32_t BACKUP_RestoreParameter(uint32_t address) { return HAL_RTCEx_BKUPRead(&RtcHandle,address); }{ ... } /** * @} *//* ... */ /** * @} *//* ... */
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