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/**
******************************************************************************
* @file k_rtc.c
* @author MCD Application Team
* @brief This file provides the kernel rtc functions
******************************************************************************
* @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 "k_rtc.h"
/** @addtogroup CORE
* @{
*/
/** @defgroup KERNEL_RTC
* @brief Kernel rtc routines
* @{
*/
/* 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 macros ------------------------------------------------------------*/
/* Private variables ---------------------------------------------------------*/
RTC_HandleTypeDef RtcHandle;
/**
* @brief Configure the current time and date.
* @param None
* @retval None
*/
void k_CalendarBkupInit(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)
{
}
}
/**
* @brief RTC MSP Initialization
* This function configures the hardware resources used in this demonstration:
* - Peripheral's clock enable
* @param hrtc: RTC handle pointer
* @retval None
*/
void HAL_RTC_MspInit(RTC_HandleTypeDef *hrtc)
{
RCC_OscInitTypeDef Osc;
RCC_PeriphCLKInitTypeDef PeriphClkInitStruct;
/*##-1- Configure LSE as RTC clock source ###################################*/
Osc.OscillatorType = RCC_OSCILLATORTYPE_LSI | RCC_OSCILLATORTYPE_LSE;
Osc.PLL.PLLState = RCC_PLL_NONE;
Osc.LSEState = RCC_LSE_ON;
Osc.LSIState = RCC_LSI_OFF;
HAL_RCC_OscConfig(&Osc);
PeriphClkInitStruct.PeriphClockSelection = RCC_PERIPHCLK_RTC;
PeriphClkInitStruct.RTCClockSelection = RCC_RTCCLKSOURCE_LSE;
HAL_RCCEx_PeriphCLKConfig(&PeriphClkInitStruct);
/*##-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 demonstration:
* - 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 Backup save parameter
* @param address: RTC Backup data Register number.
* This parameter can be: RTC_BKP_DRx where x can be from 0 to 19 to
* specify the register.
* @param Data: Data to be written in the specified RTC Backup data register.
* @retval None
*/
void k_BkupSaveParameter(uint32_t address, uint32_t data)
{
HAL_RTCEx_BKUPWrite(&RtcHandle,address,data);
}
/**
* @brief Backup restore parameter.
* @param address: RTC Backup data Register number.
* This parameter can be: RTC_BKP_DRx where x can be from 0 to 19 to
* specify the register.
* @retval None
*/
uint32_t k_BkupRestoreParameter(uint32_t address)
{
return HAL_RTCEx_BKUPRead(&RtcHandle,address);
}
/**
* @brief RTC Get time.
* @param Time: Pointer to Time structure
* @retval None
*/
void k_GetTime( RTC_TimeTypeDef *Time)
{
HAL_RTC_GetTime(&RtcHandle, Time, RTC_FORMAT_BIN);
}
/**
* @brief RTC Set time.
* @param Time: Pointer to Time structure
* @retval None
*/
void k_SetTime( RTC_TimeTypeDef *Time)
{
Time->StoreOperation = 0;
Time->SubSeconds = 0;
Time->DayLightSaving = 0;
HAL_RTC_SetTime(&RtcHandle, Time, RTC_FORMAT_BIN);
}
/**
* @brief RTC Get date
* @param Date: Pointer to Date structure
* @retval None
*/
void k_GetDate( RTC_DateTypeDef *Date)
{
HAL_RTC_GetDate(&RtcHandle, Date, RTC_FORMAT_BIN);
if((Date->Date == 0) || (Date->Month == 0))
{
Date->Date = Date->Month = 1;
}
}
/**
* @brief RTC Set date
* @param Date: Pointer to Date structure
* @retval None
*/
void k_SetDate( RTC_DateTypeDef *Date)
{
HAL_RTC_SetDate(&RtcHandle, Date, RTC_FORMAT_BIN);
}
/**
* @}
*/
/**
* @}
*/
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