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targets/TARGET_STM/TARGET_STM32F4/device/stm32f4xx_hal_rtc.c@0:13413ea9a877, 2022-06-12 (annotated)

Committer:: ganlikun
Date:: Sun Jun 12 14:02:44 2022 +0000
Revision:: 0:13413ea9a877

Who changed what in which revision?

User	Revision	Line number	New contents of line
ganlikun	0:13413ea9a877	1	/**
ganlikun	0:13413ea9a877	2	******************************************************************************
ganlikun	0:13413ea9a877	3	* @file stm32f4xx_hal_rtc.c
ganlikun	0:13413ea9a877	4	* @author MCD Application Team
ganlikun	0:13413ea9a877	5	* @version V1.7.1
ganlikun	0:13413ea9a877	6	* @date 14-April-2017
ganlikun	0:13413ea9a877	7	* @brief RTC HAL module driver.
ganlikun	0:13413ea9a877	8	* This file provides firmware functions to manage the following
ganlikun	0:13413ea9a877	9	* functionalities of the Real Time Clock (RTC) peripheral:
ganlikun	0:13413ea9a877	10	* + Initialization and de-initialization functions
ganlikun	0:13413ea9a877	11	* + RTC Time and Date functions
ganlikun	0:13413ea9a877	12	* + RTC Alarm functions
ganlikun	0:13413ea9a877	13	* + Peripheral Control functions
ganlikun	0:13413ea9a877	14	* + Peripheral State functions
ganlikun	0:13413ea9a877	15	*
ganlikun	0:13413ea9a877	16	@verbatim
ganlikun	0:13413ea9a877	17	==============================================================================
ganlikun	0:13413ea9a877	18	##### Backup Domain Operating Condition #####
ganlikun	0:13413ea9a877	19	==============================================================================
ganlikun	0:13413ea9a877	20	[..] The real-time clock (RTC), the RTC backup registers, and the backup
ganlikun	0:13413ea9a877	21	SRAM (BKP SRAM) can be powered from the VBAT voltage when the main
ganlikun	0:13413ea9a877	22	VDD supply is powered off.
ganlikun	0:13413ea9a877	23	To retain the content of the RTC backup registers, backup SRAM, and supply
ganlikun	0:13413ea9a877	24	the RTC when VDD is turned off, VBAT pin can be connected to an optional
ganlikun	0:13413ea9a877	25	standby voltage supplied by a battery or by another source.
ganlikun	0:13413ea9a877	26
ganlikun	0:13413ea9a877	27	[..] To allow the RTC operating even when the main digital supply (VDD) is turned
ganlikun	0:13413ea9a877	28	off, the VBAT pin powers the following blocks:
ganlikun	0:13413ea9a877	29	(#) The RTC
ganlikun	0:13413ea9a877	30	(#) The LSE oscillator
ganlikun	0:13413ea9a877	31	(#) The backup SRAM when the low power backup regulator is enabled
ganlikun	0:13413ea9a877	32	(#) PC13 to PC15 I/Os, plus PI8 I/O (when available)
ganlikun	0:13413ea9a877	33
ganlikun	0:13413ea9a877	34	[..] When the backup domain is supplied by VDD (analog switch connected to VDD),
ganlikun	0:13413ea9a877	35	the following pins are available:
ganlikun	0:13413ea9a877	36	(#) PC14 and PC15 can be used as either GPIO or LSE pins
ganlikun	0:13413ea9a877	37	(#) PC13 can be used as a GPIO or as the RTC_AF1 pin
ganlikun	0:13413ea9a877	38	(#) PI8 can be used as a GPIO or as the RTC_AF2 pin
ganlikun	0:13413ea9a877	39
ganlikun	0:13413ea9a877	40	[..] When the backup domain is supplied by VBAT (analog switch connected to VBAT
ganlikun	0:13413ea9a877	41	because VDD is not present), the following pins are available:
ganlikun	0:13413ea9a877	42	(#) PC14 and PC15 can be used as LSE pins only
ganlikun	0:13413ea9a877	43	(#) PC13 can be used as the RTC_AF1 pin
ganlikun	0:13413ea9a877	44	(#) PI8 can be used as the RTC_AF2 pin
ganlikun	0:13413ea9a877	45
ganlikun	0:13413ea9a877	46	##### Backup Domain Reset #####
ganlikun	0:13413ea9a877	47	==================================================================
ganlikun	0:13413ea9a877	48	[..] The backup domain reset sets all RTC registers and the RCC_BDCR register
ganlikun	0:13413ea9a877	49	to their reset values. The BKPSRAM is not affected by this reset. The only
ganlikun	0:13413ea9a877	50	way to reset the BKPSRAM is through the Flash interface by requesting
ganlikun	0:13413ea9a877	51	a protection level change from 1 to 0.
ganlikun	0:13413ea9a877	52	[..] A backup domain reset is generated when one of the following events occurs:
ganlikun	0:13413ea9a877	53	(#) Software reset, triggered by setting the BDRST bit in the
ganlikun	0:13413ea9a877	54	RCC Backup domain control register (RCC_BDCR).
ganlikun	0:13413ea9a877	55	(#) VDD or VBAT power on, if both supplies have previously been powered off.
ganlikun	0:13413ea9a877	56
ganlikun	0:13413ea9a877	57	##### Backup Domain Access #####
ganlikun	0:13413ea9a877	58	==================================================================
ganlikun	0:13413ea9a877	59	[..] After reset, the backup domain (RTC registers, RTC backup data
ganlikun	0:13413ea9a877	60	registers and backup SRAM) is protected against possible unwanted write
ganlikun	0:13413ea9a877	61	accesses.
ganlikun	0:13413ea9a877	62	[..] To enable access to the RTC Domain and RTC registers, proceed as follows:
ganlikun	0:13413ea9a877	63	(+) Enable the Power Controller (PWR) APB1 interface clock using the
ganlikun	0:13413ea9a877	64	__HAL_RCC_PWR_CLK_ENABLE() function.
ganlikun	0:13413ea9a877	65	(+) Enable access to RTC domain using the HAL_PWR_EnableBkUpAccess() function.
ganlikun	0:13413ea9a877	66	(+) Select the RTC clock source using the __HAL_RCC_RTC_CONFIG() function.
ganlikun	0:13413ea9a877	67	(+) Enable RTC Clock using the __HAL_RCC_RTC_ENABLE() function.
ganlikun	0:13413ea9a877	68
ganlikun	0:13413ea9a877	69
ganlikun	0:13413ea9a877	70	##### How to use this driver #####
ganlikun	0:13413ea9a877	71	==================================================================
ganlikun	0:13413ea9a877	72	[..]
ganlikun	0:13413ea9a877	73	(+) Enable the RTC domain access (see description in the section above).
ganlikun	0:13413ea9a877	74	(+) Configure the RTC Prescaler (Asynchronous and Synchronous) and RTC hour
ganlikun	0:13413ea9a877	75	format using the HAL_RTC_Init() function.
ganlikun	0:13413ea9a877	76
ganlikun	0:13413ea9a877	77	* Time and Date configuration *
ganlikun	0:13413ea9a877	78	===================================
ganlikun	0:13413ea9a877	79	[..]
ganlikun	0:13413ea9a877	80	(+) To configure the RTC Calendar (Time and Date) use the HAL_RTC_SetTime()
ganlikun	0:13413ea9a877	81	and HAL_RTC_SetDate() functions.
ganlikun	0:13413ea9a877	82	(+) To read the RTC Calendar, use the HAL_RTC_GetTime() and HAL_RTC_GetDate() functions.
ganlikun	0:13413ea9a877	83
ganlikun	0:13413ea9a877	84	* Alarm configuration *
ganlikun	0:13413ea9a877	85	===========================
ganlikun	0:13413ea9a877	86	[..]
ganlikun	0:13413ea9a877	87	(+) To configure the RTC Alarm use the HAL_RTC_SetAlarm() function.
ganlikun	0:13413ea9a877	88	You can also configure the RTC Alarm with interrupt mode using the HAL_RTC_SetAlarm_IT() function.
ganlikun	0:13413ea9a877	89	(+) To read the RTC Alarm, use the HAL_RTC_GetAlarm() function.
ganlikun	0:13413ea9a877	90
ganlikun	0:13413ea9a877	91	##### RTC and low power modes #####
ganlikun	0:13413ea9a877	92	==================================================================
ganlikun	0:13413ea9a877	93	[..] The MCU can be woken up from a low power mode by an RTC alternate
ganlikun	0:13413ea9a877	94	function.
ganlikun	0:13413ea9a877	95	[..] The RTC alternate functions are the RTC alarms (Alarm A and Alarm B),
ganlikun	0:13413ea9a877	96	RTC wake-up, RTC tamper event detection and RTC time stamp event detection.
ganlikun	0:13413ea9a877	97	These RTC alternate functions can wake up the system from the Stop and
ganlikun	0:13413ea9a877	98	Standby low power modes.
ganlikun	0:13413ea9a877	99	[..] The system can also wake up from low power modes without depending
ganlikun	0:13413ea9a877	100	on an external interrupt (Auto-wake-up mode), by using the RTC alarm
ganlikun	0:13413ea9a877	101	or the RTC wake-up events.
ganlikun	0:13413ea9a877	102	[..] The RTC provides a programmable time base for waking up from the
ganlikun	0:13413ea9a877	103	Stop or Standby mode at regular intervals.
ganlikun	0:13413ea9a877	104	Wake-up from STOP and STANDBY modes is possible only when the RTC clock source
ganlikun	0:13413ea9a877	105	is LSE or LSI.
ganlikun	0:13413ea9a877	106
ganlikun	0:13413ea9a877	107	@endverbatim
ganlikun	0:13413ea9a877	108	******************************************************************************
ganlikun	0:13413ea9a877	109	* @attention
ganlikun	0:13413ea9a877	110	*
ganlikun	0:13413ea9a877	111	* <h2><center>© COPYRIGHT(c) 2017 STMicroelectronics</center></h2>
ganlikun	0:13413ea9a877	112	*
ganlikun	0:13413ea9a877	113	* Redistribution and use in source and binary forms, with or without modification,
ganlikun	0:13413ea9a877	114	* are permitted provided that the following conditions are met:
ganlikun	0:13413ea9a877	115	* 1. Redistributions of source code must retain the above copyright notice,
ganlikun	0:13413ea9a877	116	* this list of conditions and the following disclaimer.
ganlikun	0:13413ea9a877	117	* 2. Redistributions in binary form must reproduce the above copyright notice,
ganlikun	0:13413ea9a877	118	* this list of conditions and the following disclaimer in the documentation
ganlikun	0:13413ea9a877	119	* and/or other materials provided with the distribution.
ganlikun	0:13413ea9a877	120	* 3. Neither the name of STMicroelectronics nor the names of its contributors
ganlikun	0:13413ea9a877	121	* may be used to endorse or promote products derived from this software
ganlikun	0:13413ea9a877	122	* without specific prior written permission.
ganlikun	0:13413ea9a877	123	*
ganlikun	0:13413ea9a877	124	* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
ganlikun	0:13413ea9a877	125	* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
ganlikun	0:13413ea9a877	126	* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
ganlikun	0:13413ea9a877	127	* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
ganlikun	0:13413ea9a877	128	* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
ganlikun	0:13413ea9a877	129	* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
ganlikun	0:13413ea9a877	130	* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
ganlikun	0:13413ea9a877	131	* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
ganlikun	0:13413ea9a877	132	* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
ganlikun	0:13413ea9a877	133	* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
ganlikun	0:13413ea9a877	134	*
ganlikun	0:13413ea9a877	135	******************************************************************************
ganlikun	0:13413ea9a877	136	*/
ganlikun	0:13413ea9a877	137
ganlikun	0:13413ea9a877	138	/* Includes ------------------------------------------------------------------*/
ganlikun	0:13413ea9a877	139	#include "stm32f4xx_hal.h"
ganlikun	0:13413ea9a877	140
ganlikun	0:13413ea9a877	141	/** @addtogroup STM32F4xx_HAL_Driver
ganlikun	0:13413ea9a877	142	* @{
ganlikun	0:13413ea9a877	143	*/
ganlikun	0:13413ea9a877	144
ganlikun	0:13413ea9a877	145	/** @defgroup RTC RTC
ganlikun	0:13413ea9a877	146	* @brief RTC HAL module driver
ganlikun	0:13413ea9a877	147	* @{
ganlikun	0:13413ea9a877	148	*/
ganlikun	0:13413ea9a877	149
ganlikun	0:13413ea9a877	150	#ifdef HAL_RTC_MODULE_ENABLED
ganlikun	0:13413ea9a877	151
ganlikun	0:13413ea9a877	152	/* Private typedef -----------------------------------------------------------*/
ganlikun	0:13413ea9a877	153	/* Private define ------------------------------------------------------------*/
ganlikun	0:13413ea9a877	154	/* Private macro -------------------------------------------------------------*/
ganlikun	0:13413ea9a877	155	/* Private variables ---------------------------------------------------------*/
ganlikun	0:13413ea9a877	156	/* Private function prototypes -----------------------------------------------*/
ganlikun	0:13413ea9a877	157	/* Private functions ---------------------------------------------------------*/
ganlikun	0:13413ea9a877	158
ganlikun	0:13413ea9a877	159	/** @defgroup RTC_Exported_Functions RTC Exported Functions
ganlikun	0:13413ea9a877	160	* @{
ganlikun	0:13413ea9a877	161	*/
ganlikun	0:13413ea9a877	162
ganlikun	0:13413ea9a877	163	/** @defgroup RTC_Exported_Functions_Group1 Initialization and de-initialization functions
ganlikun	0:13413ea9a877	164	* @brief Initialization and Configuration functions
ganlikun	0:13413ea9a877	165	*
ganlikun	0:13413ea9a877	166	@verbatim
ganlikun	0:13413ea9a877	167	===============================================================================
ganlikun	0:13413ea9a877	168	##### Initialization and de-initialization functions #####
ganlikun	0:13413ea9a877	169	===============================================================================
ganlikun	0:13413ea9a877	170	[..] This section provides functions allowing to initialize and configure the
ganlikun	0:13413ea9a877	171	RTC Prescaler (Synchronous and Asynchronous), RTC Hour format, disable
ganlikun	0:13413ea9a877	172	RTC registers Write protection, enter and exit the RTC initialization mode,
ganlikun	0:13413ea9a877	173	RTC registers synchronization check and reference clock detection enable.
ganlikun	0:13413ea9a877	174	(#) The RTC Prescaler is programmed to generate the RTC 1Hz time base.
ganlikun	0:13413ea9a877	175	It is split into 2 programmable prescalers to minimize power consumption.
ganlikun	0:13413ea9a877	176	(++) A 7-bit asynchronous prescaler and a 13-bit synchronous prescaler.
ganlikun	0:13413ea9a877	177	(++) When both prescalers are used, it is recommended to configure the
ganlikun	0:13413ea9a877	178	asynchronous prescaler to a high value to minimize power consumption.
ganlikun	0:13413ea9a877	179	(#) All RTC registers are Write protected. Writing to the RTC registers
ganlikun	0:13413ea9a877	180	is enabled by writing a key into the Write Protection register, RTC_WPR.
ganlikun	0:13413ea9a877	181	(#) To configure the RTC Calendar, user application should enter
ganlikun	0:13413ea9a877	182	initialization mode. In this mode, the calendar counter is stopped
ganlikun	0:13413ea9a877	183	and its value can be updated. When the initialization sequence is
ganlikun	0:13413ea9a877	184	complete, the calendar restarts counting after 4 RTCCLK cycles.
ganlikun	0:13413ea9a877	185	(#) To read the calendar through the shadow registers after Calendar
ganlikun	0:13413ea9a877	186	initialization, calendar update or after wake-up from low power modes
ganlikun	0:13413ea9a877	187	the software must first clear the RSF flag. The software must then
ganlikun	0:13413ea9a877	188	wait until it is set again before reading the calendar, which means
ganlikun	0:13413ea9a877	189	that the calendar registers have been correctly copied into the
ganlikun	0:13413ea9a877	190	RTC_TR and RTC_DR shadow registers.The HAL_RTC_WaitForSynchro() function
ganlikun	0:13413ea9a877	191	implements the above software sequence (RSF clear and RSF check).
ganlikun	0:13413ea9a877	192
ganlikun	0:13413ea9a877	193	@endverbatim
ganlikun	0:13413ea9a877	194	* @{
ganlikun	0:13413ea9a877	195	*/
ganlikun	0:13413ea9a877	196
ganlikun	0:13413ea9a877	197	/**
ganlikun	0:13413ea9a877	198	* @brief Initializes the RTC peripheral
ganlikun	0:13413ea9a877	199	* @param hrtc: pointer to a RTC_HandleTypeDef structure that contains
ganlikun	0:13413ea9a877	200	* the configuration information for RTC.
ganlikun	0:13413ea9a877	201	* @retval HAL status
ganlikun	0:13413ea9a877	202	*/
ganlikun	0:13413ea9a877	203	HAL_StatusTypeDef HAL_RTC_Init(RTC_HandleTypeDef *hrtc)
ganlikun	0:13413ea9a877	204	{
ganlikun	0:13413ea9a877	205	/* Check the RTC peripheral state */
ganlikun	0:13413ea9a877	206	if(hrtc == NULL)
ganlikun	0:13413ea9a877	207	{
ganlikun	0:13413ea9a877	208	return HAL_ERROR;
ganlikun	0:13413ea9a877	209	}
ganlikun	0:13413ea9a877	210
ganlikun	0:13413ea9a877	211	/* Check the parameters */
ganlikun	0:13413ea9a877	212	assert_param(IS_RTC_HOUR_FORMAT(hrtc->Init.HourFormat));
ganlikun	0:13413ea9a877	213	assert_param(IS_RTC_ASYNCH_PREDIV(hrtc->Init.AsynchPrediv));
ganlikun	0:13413ea9a877	214	assert_param(IS_RTC_SYNCH_PREDIV(hrtc->Init.SynchPrediv));
ganlikun	0:13413ea9a877	215	assert_param (IS_RTC_OUTPUT(hrtc->Init.OutPut));
ganlikun	0:13413ea9a877	216	assert_param (IS_RTC_OUTPUT_POL(hrtc->Init.OutPutPolarity));
ganlikun	0:13413ea9a877	217	assert_param(IS_RTC_OUTPUT_TYPE(hrtc->Init.OutPutType));
ganlikun	0:13413ea9a877	218
ganlikun	0:13413ea9a877	219	if(hrtc->State == HAL_RTC_STATE_RESET)
ganlikun	0:13413ea9a877	220	{
ganlikun	0:13413ea9a877	221	/* Allocate lock resource and initialize it */
ganlikun	0:13413ea9a877	222	hrtc->Lock = HAL_UNLOCKED;
ganlikun	0:13413ea9a877	223	/* Initialize RTC MSP */
ganlikun	0:13413ea9a877	224	HAL_RTC_MspInit(hrtc);
ganlikun	0:13413ea9a877	225	}
ganlikun	0:13413ea9a877	226
ganlikun	0:13413ea9a877	227	/* Set RTC state */
ganlikun	0:13413ea9a877	228	hrtc->State = HAL_RTC_STATE_BUSY;
ganlikun	0:13413ea9a877	229
ganlikun	0:13413ea9a877	230	/* Disable the write protection for RTC registers */
ganlikun	0:13413ea9a877	231	__HAL_RTC_WRITEPROTECTION_DISABLE(hrtc);
ganlikun	0:13413ea9a877	232
ganlikun	0:13413ea9a877	233	/* Set Initialization mode */
ganlikun	0:13413ea9a877	234	if(RTC_EnterInitMode(hrtc) != HAL_OK)
ganlikun	0:13413ea9a877	235	{
ganlikun	0:13413ea9a877	236	/* Enable the write protection for RTC registers */
ganlikun	0:13413ea9a877	237	__HAL_RTC_WRITEPROTECTION_ENABLE(hrtc);
ganlikun	0:13413ea9a877	238
ganlikun	0:13413ea9a877	239	/* Set RTC state */
ganlikun	0:13413ea9a877	240	hrtc->State = HAL_RTC_STATE_ERROR;
ganlikun	0:13413ea9a877	241
ganlikun	0:13413ea9a877	242	return HAL_ERROR;
ganlikun	0:13413ea9a877	243	}
ganlikun	0:13413ea9a877	244	else
ganlikun	0:13413ea9a877	245	{
ganlikun	0:13413ea9a877	246	/* Clear RTC_CR FMT, OSEL and POL Bits */
ganlikun	0:13413ea9a877	247	hrtc->Instance->CR &= ((uint32_t)~(RTC_CR_FMT \| RTC_CR_OSEL \| RTC_CR_POL));
ganlikun	0:13413ea9a877	248	/* Set RTC_CR register */
ganlikun	0:13413ea9a877	249	hrtc->Instance->CR \|= (uint32_t)(hrtc->Init.HourFormat \| hrtc->Init.OutPut \| hrtc->Init.OutPutPolarity);
ganlikun	0:13413ea9a877	250
ganlikun	0:13413ea9a877	251	/* Configure the RTC PRER */
ganlikun	0:13413ea9a877	252	hrtc->Instance->PRER = (uint32_t)(hrtc->Init.SynchPrediv);
ganlikun	0:13413ea9a877	253	hrtc->Instance->PRER \|= (uint32_t)(hrtc->Init.AsynchPrediv << 16U);
ganlikun	0:13413ea9a877	254
ganlikun	0:13413ea9a877	255	/* Exit Initialization mode */
ganlikun	0:13413ea9a877	256	hrtc->Instance->ISR &= (uint32_t)~RTC_ISR_INIT;
ganlikun	0:13413ea9a877	257
ganlikun	0:13413ea9a877	258	hrtc->Instance->TAFCR &= (uint32_t)~RTC_TAFCR_ALARMOUTTYPE;
ganlikun	0:13413ea9a877	259	hrtc->Instance->TAFCR \|= (uint32_t)(hrtc->Init.OutPutType);
ganlikun	0:13413ea9a877	260
ganlikun	0:13413ea9a877	261	/* Enable the write protection for RTC registers */
ganlikun	0:13413ea9a877	262	__HAL_RTC_WRITEPROTECTION_ENABLE(hrtc);
ganlikun	0:13413ea9a877	263
ganlikun	0:13413ea9a877	264	/* Set RTC state */
ganlikun	0:13413ea9a877	265	hrtc->State = HAL_RTC_STATE_READY;
ganlikun	0:13413ea9a877	266
ganlikun	0:13413ea9a877	267	return HAL_OK;
ganlikun	0:13413ea9a877	268	}
ganlikun	0:13413ea9a877	269	}
ganlikun	0:13413ea9a877	270
ganlikun	0:13413ea9a877	271	/**
ganlikun	0:13413ea9a877	272	* @brief DeInitializes the RTC peripheral
ganlikun	0:13413ea9a877	273	* @param hrtc: pointer to a RTC_HandleTypeDef structure that contains
ganlikun	0:13413ea9a877	274	* the configuration information for RTC.
ganlikun	0:13413ea9a877	275	* @note This function doesn't reset the RTC Backup Data registers.
ganlikun	0:13413ea9a877	276	* @retval HAL status
ganlikun	0:13413ea9a877	277	*/
ganlikun	0:13413ea9a877	278	HAL_StatusTypeDef HAL_RTC_DeInit(RTC_HandleTypeDef *hrtc)
ganlikun	0:13413ea9a877	279	{
ganlikun	0:13413ea9a877	280	uint32_t tickstart = 0U;
ganlikun	0:13413ea9a877	281
ganlikun	0:13413ea9a877	282	/* Set RTC state */
ganlikun	0:13413ea9a877	283	hrtc->State = HAL_RTC_STATE_BUSY;
ganlikun	0:13413ea9a877	284
ganlikun	0:13413ea9a877	285	/* Disable the write protection for RTC registers */
ganlikun	0:13413ea9a877	286	__HAL_RTC_WRITEPROTECTION_DISABLE(hrtc);
ganlikun	0:13413ea9a877	287
ganlikun	0:13413ea9a877	288	/* Set Initialization mode */
ganlikun	0:13413ea9a877	289	if(RTC_EnterInitMode(hrtc) != HAL_OK)
ganlikun	0:13413ea9a877	290	{
ganlikun	0:13413ea9a877	291	/* Enable the write protection for RTC registers */
ganlikun	0:13413ea9a877	292	__HAL_RTC_WRITEPROTECTION_ENABLE(hrtc);
ganlikun	0:13413ea9a877	293
ganlikun	0:13413ea9a877	294	/* Set RTC state */
ganlikun	0:13413ea9a877	295	hrtc->State = HAL_RTC_STATE_ERROR;
ganlikun	0:13413ea9a877	296
ganlikun	0:13413ea9a877	297	return HAL_ERROR;
ganlikun	0:13413ea9a877	298	}
ganlikun	0:13413ea9a877	299	else
ganlikun	0:13413ea9a877	300	{
ganlikun	0:13413ea9a877	301	/* Reset TR, DR and CR registers */
ganlikun	0:13413ea9a877	302	hrtc->Instance->TR = 0x00000000U;
ganlikun	0:13413ea9a877	303	hrtc->Instance->DR = 0x00002101U;
ganlikun	0:13413ea9a877	304	/* Reset All CR bits except CR[2:0] */
ganlikun	0:13413ea9a877	305	hrtc->Instance->CR &= 0x00000007U;
ganlikun	0:13413ea9a877	306
ganlikun	0:13413ea9a877	307	/* Get tick */
ganlikun	0:13413ea9a877	308	tickstart = HAL_GetTick();
ganlikun	0:13413ea9a877	309
ganlikun	0:13413ea9a877	310	/* Wait till WUTWF flag is set and if Time out is reached exit */
ganlikun	0:13413ea9a877	311	while(((hrtc->Instance->ISR) & RTC_ISR_WUTWF) == (uint32_t)RESET)
ganlikun	0:13413ea9a877	312	{
ganlikun	0:13413ea9a877	313	if((HAL_GetTick() - tickstart ) > RTC_TIMEOUT_VALUE)
ganlikun	0:13413ea9a877	314	{
ganlikun	0:13413ea9a877	315	/* Enable the write protection for RTC registers */
ganlikun	0:13413ea9a877	316	__HAL_RTC_WRITEPROTECTION_ENABLE(hrtc);
ganlikun	0:13413ea9a877	317
ganlikun	0:13413ea9a877	318	/* Set RTC state */
ganlikun	0:13413ea9a877	319	hrtc->State = HAL_RTC_STATE_TIMEOUT;
ganlikun	0:13413ea9a877	320
ganlikun	0:13413ea9a877	321	return HAL_TIMEOUT;
ganlikun	0:13413ea9a877	322	}
ganlikun	0:13413ea9a877	323	}
ganlikun	0:13413ea9a877	324
ganlikun	0:13413ea9a877	325	/* Reset all RTC CR register bits */
ganlikun	0:13413ea9a877	326	hrtc->Instance->CR &= 0x00000000U;
ganlikun	0:13413ea9a877	327	hrtc->Instance->WUTR = 0x0000FFFFU;
ganlikun	0:13413ea9a877	328	hrtc->Instance->PRER = 0x007F00FFU;
ganlikun	0:13413ea9a877	329	hrtc->Instance->CALIBR = 0x00000000U;
ganlikun	0:13413ea9a877	330	hrtc->Instance->ALRMAR = 0x00000000U;
ganlikun	0:13413ea9a877	331	hrtc->Instance->ALRMBR = 0x00000000U;
ganlikun	0:13413ea9a877	332	hrtc->Instance->SHIFTR = 0x00000000U;
ganlikun	0:13413ea9a877	333	hrtc->Instance->CALR = 0x00000000U;
ganlikun	0:13413ea9a877	334	hrtc->Instance->ALRMASSR = 0x00000000U;
ganlikun	0:13413ea9a877	335	hrtc->Instance->ALRMBSSR = 0x00000000U;
ganlikun	0:13413ea9a877	336
ganlikun	0:13413ea9a877	337	/* Reset ISR register and exit initialization mode */
ganlikun	0:13413ea9a877	338	hrtc->Instance->ISR = 0x00000000U;
ganlikun	0:13413ea9a877	339
ganlikun	0:13413ea9a877	340	/* Reset Tamper and alternate functions configuration register */
ganlikun	0:13413ea9a877	341	hrtc->Instance->TAFCR = 0x00000000U;
ganlikun	0:13413ea9a877	342
ganlikun	0:13413ea9a877	343	/* If RTC_CR_BYPSHAD bit = 0, wait for synchro else this check is not needed */
ganlikun	0:13413ea9a877	344	if((hrtc->Instance->CR & RTC_CR_BYPSHAD) == RESET)
ganlikun	0:13413ea9a877	345	{
ganlikun	0:13413ea9a877	346	if(HAL_RTC_WaitForSynchro(hrtc) != HAL_OK)
ganlikun	0:13413ea9a877	347	{
ganlikun	0:13413ea9a877	348	/* Enable the write protection for RTC registers */
ganlikun	0:13413ea9a877	349	__HAL_RTC_WRITEPROTECTION_ENABLE(hrtc);
ganlikun	0:13413ea9a877	350
ganlikun	0:13413ea9a877	351	hrtc->State = HAL_RTC_STATE_ERROR;
ganlikun	0:13413ea9a877	352
ganlikun	0:13413ea9a877	353	return HAL_ERROR;
ganlikun	0:13413ea9a877	354	}
ganlikun	0:13413ea9a877	355	}
ganlikun	0:13413ea9a877	356	}
ganlikun	0:13413ea9a877	357
ganlikun	0:13413ea9a877	358	/* Enable the write protection for RTC registers */
ganlikun	0:13413ea9a877	359	__HAL_RTC_WRITEPROTECTION_ENABLE(hrtc);
ganlikun	0:13413ea9a877	360
ganlikun	0:13413ea9a877	361	/* De-Initialize RTC MSP */
ganlikun	0:13413ea9a877	362	HAL_RTC_MspDeInit(hrtc);
ganlikun	0:13413ea9a877	363
ganlikun	0:13413ea9a877	364	hrtc->State = HAL_RTC_STATE_RESET;
ganlikun	0:13413ea9a877	365
ganlikun	0:13413ea9a877	366	/* Release Lock */
ganlikun	0:13413ea9a877	367	__HAL_UNLOCK(hrtc);
ganlikun	0:13413ea9a877	368
ganlikun	0:13413ea9a877	369	return HAL_OK;
ganlikun	0:13413ea9a877	370	}
ganlikun	0:13413ea9a877	371
ganlikun	0:13413ea9a877	372	/**
ganlikun	0:13413ea9a877	373	* @brief Initializes the RTC MSP.
ganlikun	0:13413ea9a877	374	* @param hrtc: pointer to a RTC_HandleTypeDef structure that contains
ganlikun	0:13413ea9a877	375	* the configuration information for RTC.
ganlikun	0:13413ea9a877	376	* @retval None
ganlikun	0:13413ea9a877	377	*/
ganlikun	0:13413ea9a877	378	__weak void HAL_RTC_MspInit(RTC_HandleTypeDef* hrtc)
ganlikun	0:13413ea9a877	379	{
ganlikun	0:13413ea9a877	380	/* Prevent unused argument(s) compilation warning */
ganlikun	0:13413ea9a877	381	UNUSED(hrtc);
ganlikun	0:13413ea9a877	382	/* NOTE : This function Should not be modified, when the callback is needed,
ganlikun	0:13413ea9a877	383	the HAL_RTC_MspInit could be implemented in the user file
ganlikun	0:13413ea9a877	384	*/
ganlikun	0:13413ea9a877	385	}
ganlikun	0:13413ea9a877	386
ganlikun	0:13413ea9a877	387	/**
ganlikun	0:13413ea9a877	388	* @brief DeInitializes the RTC MSP.
ganlikun	0:13413ea9a877	389	* @param hrtc: pointer to a RTC_HandleTypeDef structure that contains
ganlikun	0:13413ea9a877	390	* the configuration information for RTC.
ganlikun	0:13413ea9a877	391	* @retval None
ganlikun	0:13413ea9a877	392	*/
ganlikun	0:13413ea9a877	393	__weak void HAL_RTC_MspDeInit(RTC_HandleTypeDef* hrtc)
ganlikun	0:13413ea9a877	394	{
ganlikun	0:13413ea9a877	395	/* Prevent unused argument(s) compilation warning */
ganlikun	0:13413ea9a877	396	UNUSED(hrtc);
ganlikun	0:13413ea9a877	397	/* NOTE : This function Should not be modified, when the callback is needed,
ganlikun	0:13413ea9a877	398	the HAL_RTC_MspDeInit could be implemented in the user file
ganlikun	0:13413ea9a877	399	*/
ganlikun	0:13413ea9a877	400	}
ganlikun	0:13413ea9a877	401
ganlikun	0:13413ea9a877	402	/**
ganlikun	0:13413ea9a877	403	* @}
ganlikun	0:13413ea9a877	404	*/
ganlikun	0:13413ea9a877	405
ganlikun	0:13413ea9a877	406	/** @defgroup RTC_Exported_Functions_Group2 RTC Time and Date functions
ganlikun	0:13413ea9a877	407	* @brief RTC Time and Date functions
ganlikun	0:13413ea9a877	408	*
ganlikun	0:13413ea9a877	409	@verbatim
ganlikun	0:13413ea9a877	410	===============================================================================
ganlikun	0:13413ea9a877	411	##### RTC Time and Date functions #####
ganlikun	0:13413ea9a877	412	===============================================================================
ganlikun	0:13413ea9a877	413
ganlikun	0:13413ea9a877	414	[..] This section provides functions allowing to configure Time and Date features
ganlikun	0:13413ea9a877	415
ganlikun	0:13413ea9a877	416	@endverbatim
ganlikun	0:13413ea9a877	417	* @{
ganlikun	0:13413ea9a877	418	*/
ganlikun	0:13413ea9a877	419
ganlikun	0:13413ea9a877	420	/**
ganlikun	0:13413ea9a877	421	* @brief Sets RTC current time.
ganlikun	0:13413ea9a877	422	* @param hrtc: pointer to a RTC_HandleTypeDef structure that contains
ganlikun	0:13413ea9a877	423	* the configuration information for RTC.
ganlikun	0:13413ea9a877	424	* @param sTime: Pointer to Time structure
ganlikun	0:13413ea9a877	425	* @param Format: Specifies the format of the entered parameters.
ganlikun	0:13413ea9a877	426	* This parameter can be one of the following values:
ganlikun	0:13413ea9a877	427	* @arg RTC_FORMAT_BIN: Binary data format
ganlikun	0:13413ea9a877	428	* @arg RTC_FORMAT_BCD: BCD data format
ganlikun	0:13413ea9a877	429	* @retval HAL status
ganlikun	0:13413ea9a877	430	*/
ganlikun	0:13413ea9a877	431	HAL_StatusTypeDef HAL_RTC_SetTime(RTC_HandleTypeDef hrtc, RTC_TimeTypeDef sTime, uint32_t Format)
ganlikun	0:13413ea9a877	432	{
ganlikun	0:13413ea9a877	433	uint32_t tmpreg = 0U;
ganlikun	0:13413ea9a877	434
ganlikun	0:13413ea9a877	435	/* Check the parameters */
ganlikun	0:13413ea9a877	436	assert_param(IS_RTC_FORMAT(Format));
ganlikun	0:13413ea9a877	437	assert_param(IS_RTC_DAYLIGHT_SAVING(sTime->DayLightSaving));
ganlikun	0:13413ea9a877	438	assert_param(IS_RTC_STORE_OPERATION(sTime->StoreOperation));
ganlikun	0:13413ea9a877	439
ganlikun	0:13413ea9a877	440	/* Process Locked */
ganlikun	0:13413ea9a877	441	__HAL_LOCK(hrtc);
ganlikun	0:13413ea9a877	442
ganlikun	0:13413ea9a877	443	hrtc->State = HAL_RTC_STATE_BUSY;
ganlikun	0:13413ea9a877	444
ganlikun	0:13413ea9a877	445	if(Format == RTC_FORMAT_BIN)
ganlikun	0:13413ea9a877	446	{
ganlikun	0:13413ea9a877	447	if((hrtc->Instance->CR & RTC_CR_FMT) != (uint32_t)RESET)
ganlikun	0:13413ea9a877	448	{
ganlikun	0:13413ea9a877	449	assert_param(IS_RTC_HOUR12(sTime->Hours));
ganlikun	0:13413ea9a877	450	assert_param(IS_RTC_HOURFORMAT12(sTime->TimeFormat));
ganlikun	0:13413ea9a877	451	}
ganlikun	0:13413ea9a877	452	else
ganlikun	0:13413ea9a877	453	{
ganlikun	0:13413ea9a877	454	sTime->TimeFormat = 0x00U;
ganlikun	0:13413ea9a877	455	assert_param(IS_RTC_HOUR24(sTime->Hours));
ganlikun	0:13413ea9a877	456	}
ganlikun	0:13413ea9a877	457	assert_param(IS_RTC_MINUTES(sTime->Minutes));
ganlikun	0:13413ea9a877	458	assert_param(IS_RTC_SECONDS(sTime->Seconds));
ganlikun	0:13413ea9a877	459
ganlikun	0:13413ea9a877	460	tmpreg = (uint32_t)(((uint32_t)RTC_ByteToBcd2(sTime->Hours) << 16U) \| \
ganlikun	0:13413ea9a877	461	((uint32_t)RTC_ByteToBcd2(sTime->Minutes) << 8U) \| \
ganlikun	0:13413ea9a877	462	((uint32_t)RTC_ByteToBcd2(sTime->Seconds)) \| \
ganlikun	0:13413ea9a877	463	(((uint32_t)sTime->TimeFormat) << 16U));
ganlikun	0:13413ea9a877	464	}
ganlikun	0:13413ea9a877	465	else
ganlikun	0:13413ea9a877	466	{
ganlikun	0:13413ea9a877	467	if((hrtc->Instance->CR & RTC_CR_FMT) != (uint32_t)RESET)
ganlikun	0:13413ea9a877	468	{
ganlikun	0:13413ea9a877	469	tmpreg = RTC_Bcd2ToByte(sTime->Hours);
ganlikun	0:13413ea9a877	470	assert_param(IS_RTC_HOUR12(tmpreg));
ganlikun	0:13413ea9a877	471	assert_param(IS_RTC_HOURFORMAT12(sTime->TimeFormat));
ganlikun	0:13413ea9a877	472	}
ganlikun	0:13413ea9a877	473	else
ganlikun	0:13413ea9a877	474	{
ganlikun	0:13413ea9a877	475	sTime->TimeFormat = 0x00U;
ganlikun	0:13413ea9a877	476	assert_param(IS_RTC_HOUR24(RTC_Bcd2ToByte(sTime->Hours)));
ganlikun	0:13413ea9a877	477	}
ganlikun	0:13413ea9a877	478	assert_param(IS_RTC_MINUTES(RTC_Bcd2ToByte(sTime->Minutes)));
ganlikun	0:13413ea9a877	479	assert_param(IS_RTC_SECONDS(RTC_Bcd2ToByte(sTime->Seconds)));
ganlikun	0:13413ea9a877	480	tmpreg = (((uint32_t)(sTime->Hours) << 16U) \| \
ganlikun	0:13413ea9a877	481	((uint32_t)(sTime->Minutes) << 8U) \| \
ganlikun	0:13413ea9a877	482	((uint32_t)sTime->Seconds) \| \
ganlikun	0:13413ea9a877	483	((uint32_t)(sTime->TimeFormat) << 16U));
ganlikun	0:13413ea9a877	484	}
ganlikun	0:13413ea9a877	485
ganlikun	0:13413ea9a877	486	/* Disable the write protection for RTC registers */
ganlikun	0:13413ea9a877	487	__HAL_RTC_WRITEPROTECTION_DISABLE(hrtc);
ganlikun	0:13413ea9a877	488
ganlikun	0:13413ea9a877	489	/* Set Initialization mode */
ganlikun	0:13413ea9a877	490	if(RTC_EnterInitMode(hrtc) != HAL_OK)
ganlikun	0:13413ea9a877	491	{
ganlikun	0:13413ea9a877	492	/* Enable the write protection for RTC registers */
ganlikun	0:13413ea9a877	493	__HAL_RTC_WRITEPROTECTION_ENABLE(hrtc);
ganlikun	0:13413ea9a877	494
ganlikun	0:13413ea9a877	495	/* Set RTC state */
ganlikun	0:13413ea9a877	496	hrtc->State = HAL_RTC_STATE_ERROR;
ganlikun	0:13413ea9a877	497
ganlikun	0:13413ea9a877	498	/* Process Unlocked */
ganlikun	0:13413ea9a877	499	__HAL_UNLOCK(hrtc);
ganlikun	0:13413ea9a877	500
ganlikun	0:13413ea9a877	501	return HAL_ERROR;
ganlikun	0:13413ea9a877	502	}
ganlikun	0:13413ea9a877	503	else
ganlikun	0:13413ea9a877	504	{
ganlikun	0:13413ea9a877	505	/* Set the RTC_TR register */
ganlikun	0:13413ea9a877	506	hrtc->Instance->TR = (uint32_t)(tmpreg & RTC_TR_RESERVED_MASK);
ganlikun	0:13413ea9a877	507
ganlikun	0:13413ea9a877	508	/* Clear the bits to be configured */
ganlikun	0:13413ea9a877	509	hrtc->Instance->CR &= (uint32_t)~RTC_CR_BCK;
ganlikun	0:13413ea9a877	510
ganlikun	0:13413ea9a877	511	/* Configure the RTC_CR register */
ganlikun	0:13413ea9a877	512	hrtc->Instance->CR \|= (uint32_t)(sTime->DayLightSaving \| sTime->StoreOperation);
ganlikun	0:13413ea9a877	513
ganlikun	0:13413ea9a877	514	/* Exit Initialization mode */
ganlikun	0:13413ea9a877	515	hrtc->Instance->ISR &= (uint32_t)~RTC_ISR_INIT;
ganlikun	0:13413ea9a877	516
ganlikun	0:13413ea9a877	517	/* If CR_BYPSHAD bit = 0, wait for synchro else this check is not needed */
ganlikun	0:13413ea9a877	518	if((hrtc->Instance->CR & RTC_CR_BYPSHAD) == RESET)
ganlikun	0:13413ea9a877	519	{
ganlikun	0:13413ea9a877	520	if(HAL_RTC_WaitForSynchro(hrtc) != HAL_OK)
ganlikun	0:13413ea9a877	521	{
ganlikun	0:13413ea9a877	522	/* Enable the write protection for RTC registers */
ganlikun	0:13413ea9a877	523	__HAL_RTC_WRITEPROTECTION_ENABLE(hrtc);
ganlikun	0:13413ea9a877	524
ganlikun	0:13413ea9a877	525	hrtc->State = HAL_RTC_STATE_ERROR;
ganlikun	0:13413ea9a877	526
ganlikun	0:13413ea9a877	527	/* Process Unlocked */
ganlikun	0:13413ea9a877	528	__HAL_UNLOCK(hrtc);
ganlikun	0:13413ea9a877	529
ganlikun	0:13413ea9a877	530	return HAL_ERROR;
ganlikun	0:13413ea9a877	531	}
ganlikun	0:13413ea9a877	532	}
ganlikun	0:13413ea9a877	533
ganlikun	0:13413ea9a877	534	/* Enable the write protection for RTC registers */
ganlikun	0:13413ea9a877	535	__HAL_RTC_WRITEPROTECTION_ENABLE(hrtc);
ganlikun	0:13413ea9a877	536
ganlikun	0:13413ea9a877	537	hrtc->State = HAL_RTC_STATE_READY;
ganlikun	0:13413ea9a877	538
ganlikun	0:13413ea9a877	539	__HAL_UNLOCK(hrtc);
ganlikun	0:13413ea9a877	540
ganlikun	0:13413ea9a877	541	return HAL_OK;
ganlikun	0:13413ea9a877	542	}
ganlikun	0:13413ea9a877	543	}
ganlikun	0:13413ea9a877	544
ganlikun	0:13413ea9a877	545	/**
ganlikun	0:13413ea9a877	546	* @brief Gets RTC current time.
ganlikun	0:13413ea9a877	547	* @param hrtc: pointer to a RTC_HandleTypeDef structure that contains
ganlikun	0:13413ea9a877	548	* the configuration information for RTC.
ganlikun	0:13413ea9a877	549	* @param sTime: Pointer to Time structure
ganlikun	0:13413ea9a877	550	* @param Format: Specifies the format of the entered parameters.
ganlikun	0:13413ea9a877	551	* This parameter can be one of the following values:
ganlikun	0:13413ea9a877	552	* @arg RTC_FORMAT_BIN: Binary data format
ganlikun	0:13413ea9a877	553	* @arg RTC_FORMAT_BCD: BCD data format
ganlikun	0:13413ea9a877	554	* @note You can use SubSeconds and SecondFraction (sTime structure fields returned) to convert SubSeconds
ganlikun	0:13413ea9a877	555	* value in second fraction ratio with time unit following generic formula:
ganlikun	0:13413ea9a877	556	* Second fraction ratio * time_unit= [(SecondFraction-SubSeconds)/(SecondFraction+1)] * time_unit
ganlikun	0:13413ea9a877	557	* This conversion can be performed only if no shift operation is pending (ie. SHFP=0) when PREDIV_S >= SS
ganlikun	0:13413ea9a877	558	* @note You must call HAL_RTC_GetDate() after HAL_RTC_GetTime() to unlock the values
ganlikun	0:13413ea9a877	559	* in the higher-order calendar shadow registers to ensure consistency between the time and date values.
ganlikun	0:13413ea9a877	560	* Reading RTC current time locks the values in calendar shadow registers until current date is read.
ganlikun	0:13413ea9a877	561	* @retval HAL status
ganlikun	0:13413ea9a877	562	*/
ganlikun	0:13413ea9a877	563	HAL_StatusTypeDef HAL_RTC_GetTime(RTC_HandleTypeDef hrtc, RTC_TimeTypeDef sTime, uint32_t Format)
ganlikun	0:13413ea9a877	564	{
ganlikun	0:13413ea9a877	565	uint32_t tmpreg = 0U;
ganlikun	0:13413ea9a877	566
ganlikun	0:13413ea9a877	567	/* Check the parameters */
ganlikun	0:13413ea9a877	568	assert_param(IS_RTC_FORMAT(Format));
ganlikun	0:13413ea9a877	569
ganlikun	0:13413ea9a877	570	/* Get subseconds structure field from the corresponding register */
ganlikun	0:13413ea9a877	571	sTime->SubSeconds = (uint32_t)(hrtc->Instance->SSR);
ganlikun	0:13413ea9a877	572
ganlikun	0:13413ea9a877	573	/* Get SecondFraction structure field from the corresponding register field*/
ganlikun	0:13413ea9a877	574	sTime->SecondFraction = (uint32_t)(hrtc->Instance->PRER & RTC_PRER_PREDIV_S);
ganlikun	0:13413ea9a877	575
ganlikun	0:13413ea9a877	576	/* Get the TR register */
ganlikun	0:13413ea9a877	577	tmpreg = (uint32_t)(hrtc->Instance->TR & RTC_TR_RESERVED_MASK);
ganlikun	0:13413ea9a877	578
ganlikun	0:13413ea9a877	579	/* Fill the structure fields with the read parameters */
ganlikun	0:13413ea9a877	580	sTime->Hours = (uint8_t)((tmpreg & (RTC_TR_HT \| RTC_TR_HU)) >> 16U);
ganlikun	0:13413ea9a877	581	sTime->Minutes = (uint8_t)((tmpreg & (RTC_TR_MNT \| RTC_TR_MNU)) >> 8U);
ganlikun	0:13413ea9a877	582	sTime->Seconds = (uint8_t)(tmpreg & (RTC_TR_ST \| RTC_TR_SU));
ganlikun	0:13413ea9a877	583	sTime->TimeFormat = (uint8_t)((tmpreg & (RTC_TR_PM)) >> 16U);
ganlikun	0:13413ea9a877	584
ganlikun	0:13413ea9a877	585	/* Check the input parameters format */
ganlikun	0:13413ea9a877	586	if(Format == RTC_FORMAT_BIN)
ganlikun	0:13413ea9a877	587	{
ganlikun	0:13413ea9a877	588	/* Convert the time structure parameters to Binary format */
ganlikun	0:13413ea9a877	589	sTime->Hours = (uint8_t)RTC_Bcd2ToByte(sTime->Hours);
ganlikun	0:13413ea9a877	590	sTime->Minutes = (uint8_t)RTC_Bcd2ToByte(sTime->Minutes);
ganlikun	0:13413ea9a877	591	sTime->Seconds = (uint8_t)RTC_Bcd2ToByte(sTime->Seconds);
ganlikun	0:13413ea9a877	592	}
ganlikun	0:13413ea9a877	593
ganlikun	0:13413ea9a877	594	return HAL_OK;
ganlikun	0:13413ea9a877	595	}
ganlikun	0:13413ea9a877	596
ganlikun	0:13413ea9a877	597	/**
ganlikun	0:13413ea9a877	598	* @brief Sets RTC current date.
ganlikun	0:13413ea9a877	599	* @param hrtc: pointer to a RTC_HandleTypeDef structure that contains
ganlikun	0:13413ea9a877	600	* the configuration information for RTC.
ganlikun	0:13413ea9a877	601	* @param sDate: Pointer to date structure
ganlikun	0:13413ea9a877	602	* @param Format: specifies the format of the entered parameters.
ganlikun	0:13413ea9a877	603	* This parameter can be one of the following values:
ganlikun	0:13413ea9a877	604	* @arg RTC_FORMAT_BIN: Binary data format
ganlikun	0:13413ea9a877	605	* @arg RTC_FORMAT_BCD: BCD data format
ganlikun	0:13413ea9a877	606	* @retval HAL status
ganlikun	0:13413ea9a877	607	*/
ganlikun	0:13413ea9a877	608	HAL_StatusTypeDef HAL_RTC_SetDate(RTC_HandleTypeDef hrtc, RTC_DateTypeDef sDate, uint32_t Format)
ganlikun	0:13413ea9a877	609	{
ganlikun	0:13413ea9a877	610	uint32_t datetmpreg = 0U;
ganlikun	0:13413ea9a877	611
ganlikun	0:13413ea9a877	612	/* Check the parameters */
ganlikun	0:13413ea9a877	613	assert_param(IS_RTC_FORMAT(Format));
ganlikun	0:13413ea9a877	614
ganlikun	0:13413ea9a877	615	/* Process Locked */
ganlikun	0:13413ea9a877	616	__HAL_LOCK(hrtc);
ganlikun	0:13413ea9a877	617
ganlikun	0:13413ea9a877	618	hrtc->State = HAL_RTC_STATE_BUSY;
ganlikun	0:13413ea9a877	619
ganlikun	0:13413ea9a877	620	if((Format == RTC_FORMAT_BIN) && ((sDate->Month & 0x10U) == 0x10U))
ganlikun	0:13413ea9a877	621	{
ganlikun	0:13413ea9a877	622	sDate->Month = (uint8_t)((sDate->Month & (uint8_t)~(0x10U)) + (uint8_t)0x0AU);
ganlikun	0:13413ea9a877	623	}
ganlikun	0:13413ea9a877	624
ganlikun	0:13413ea9a877	625	assert_param(IS_RTC_WEEKDAY(sDate->WeekDay));
ganlikun	0:13413ea9a877	626
ganlikun	0:13413ea9a877	627	if(Format == RTC_FORMAT_BIN)
ganlikun	0:13413ea9a877	628	{
ganlikun	0:13413ea9a877	629	assert_param(IS_RTC_YEAR(sDate->Year));
ganlikun	0:13413ea9a877	630	assert_param(IS_RTC_MONTH(sDate->Month));
ganlikun	0:13413ea9a877	631	assert_param(IS_RTC_DATE(sDate->Date));
ganlikun	0:13413ea9a877	632
ganlikun	0:13413ea9a877	633	datetmpreg = (((uint32_t)RTC_ByteToBcd2(sDate->Year) << 16U) \| \
ganlikun	0:13413ea9a877	634	((uint32_t)RTC_ByteToBcd2(sDate->Month) << 8U) \| \
ganlikun	0:13413ea9a877	635	((uint32_t)RTC_ByteToBcd2(sDate->Date)) \| \
ganlikun	0:13413ea9a877	636	((uint32_t)sDate->WeekDay << 13U));
ganlikun	0:13413ea9a877	637	}
ganlikun	0:13413ea9a877	638	else
ganlikun	0:13413ea9a877	639	{
ganlikun	0:13413ea9a877	640	assert_param(IS_RTC_YEAR(RTC_Bcd2ToByte(sDate->Year)));
ganlikun	0:13413ea9a877	641	datetmpreg = RTC_Bcd2ToByte(sDate->Month);
ganlikun	0:13413ea9a877	642	assert_param(IS_RTC_MONTH(datetmpreg));
ganlikun	0:13413ea9a877	643	datetmpreg = RTC_Bcd2ToByte(sDate->Date);
ganlikun	0:13413ea9a877	644	assert_param(IS_RTC_DATE(datetmpreg));
ganlikun	0:13413ea9a877	645
ganlikun	0:13413ea9a877	646	datetmpreg = ((((uint32_t)sDate->Year) << 16U) \| \
ganlikun	0:13413ea9a877	647	(((uint32_t)sDate->Month) << 8U) \| \
ganlikun	0:13413ea9a877	648	((uint32_t)sDate->Date) \| \
ganlikun	0:13413ea9a877	649	(((uint32_t)sDate->WeekDay) << 13U));
ganlikun	0:13413ea9a877	650	}
ganlikun	0:13413ea9a877	651
ganlikun	0:13413ea9a877	652	/* Disable the write protection for RTC registers */
ganlikun	0:13413ea9a877	653	__HAL_RTC_WRITEPROTECTION_DISABLE(hrtc);
ganlikun	0:13413ea9a877	654
ganlikun	0:13413ea9a877	655	/* Set Initialization mode */
ganlikun	0:13413ea9a877	656	if(RTC_EnterInitMode(hrtc) != HAL_OK)
ganlikun	0:13413ea9a877	657	{
ganlikun	0:13413ea9a877	658	/* Enable the write protection for RTC registers */
ganlikun	0:13413ea9a877	659	__HAL_RTC_WRITEPROTECTION_ENABLE(hrtc);
ganlikun	0:13413ea9a877	660
ganlikun	0:13413ea9a877	661	/* Set RTC state*/
ganlikun	0:13413ea9a877	662	hrtc->State = HAL_RTC_STATE_ERROR;
ganlikun	0:13413ea9a877	663
ganlikun	0:13413ea9a877	664	/* Process Unlocked */
ganlikun	0:13413ea9a877	665	__HAL_UNLOCK(hrtc);
ganlikun	0:13413ea9a877	666
ganlikun	0:13413ea9a877	667	return HAL_ERROR;
ganlikun	0:13413ea9a877	668	}
ganlikun	0:13413ea9a877	669	else
ganlikun	0:13413ea9a877	670	{
ganlikun	0:13413ea9a877	671	/* Set the RTC_DR register */
ganlikun	0:13413ea9a877	672	hrtc->Instance->DR = (uint32_t)(datetmpreg & RTC_DR_RESERVED_MASK);
ganlikun	0:13413ea9a877	673
ganlikun	0:13413ea9a877	674	/* Exit Initialization mode */
ganlikun	0:13413ea9a877	675	hrtc->Instance->ISR &= (uint32_t)~RTC_ISR_INIT;
ganlikun	0:13413ea9a877	676
ganlikun	0:13413ea9a877	677	/* If CR_BYPSHAD bit = 0, wait for synchro else this check is not needed */
ganlikun	0:13413ea9a877	678	if((hrtc->Instance->CR & RTC_CR_BYPSHAD) == RESET)
ganlikun	0:13413ea9a877	679	{
ganlikun	0:13413ea9a877	680	if(HAL_RTC_WaitForSynchro(hrtc) != HAL_OK)
ganlikun	0:13413ea9a877	681	{
ganlikun	0:13413ea9a877	682	/* Enable the write protection for RTC registers */
ganlikun	0:13413ea9a877	683	__HAL_RTC_WRITEPROTECTION_ENABLE(hrtc);
ganlikun	0:13413ea9a877	684
ganlikun	0:13413ea9a877	685	hrtc->State = HAL_RTC_STATE_ERROR;
ganlikun	0:13413ea9a877	686
ganlikun	0:13413ea9a877	687	/* Process Unlocked */
ganlikun	0:13413ea9a877	688	__HAL_UNLOCK(hrtc);
ganlikun	0:13413ea9a877	689
ganlikun	0:13413ea9a877	690	return HAL_ERROR;
ganlikun	0:13413ea9a877	691	}
ganlikun	0:13413ea9a877	692	}
ganlikun	0:13413ea9a877	693
ganlikun	0:13413ea9a877	694	/* Enable the write protection for RTC registers */
ganlikun	0:13413ea9a877	695	__HAL_RTC_WRITEPROTECTION_ENABLE(hrtc);
ganlikun	0:13413ea9a877	696
ganlikun	0:13413ea9a877	697	hrtc->State = HAL_RTC_STATE_READY ;
ganlikun	0:13413ea9a877	698
ganlikun	0:13413ea9a877	699	/* Process Unlocked */
ganlikun	0:13413ea9a877	700	__HAL_UNLOCK(hrtc);
ganlikun	0:13413ea9a877	701
ganlikun	0:13413ea9a877	702	return HAL_OK;
ganlikun	0:13413ea9a877	703	}
ganlikun	0:13413ea9a877	704	}
ganlikun	0:13413ea9a877	705
ganlikun	0:13413ea9a877	706	/**
ganlikun	0:13413ea9a877	707	* @brief Gets RTC current date.
ganlikun	0:13413ea9a877	708	* @param hrtc: pointer to a RTC_HandleTypeDef structure that contains
ganlikun	0:13413ea9a877	709	* the configuration information for RTC.
ganlikun	0:13413ea9a877	710	* @param sDate: Pointer to Date structure
ganlikun	0:13413ea9a877	711	* @param Format: Specifies the format of the entered parameters.
ganlikun	0:13413ea9a877	712	* This parameter can be one of the following values:
ganlikun	0:13413ea9a877	713	* @arg RTC_FORMAT_BIN: Binary data format
ganlikun	0:13413ea9a877	714	* @arg RTC_FORMAT_BCD: BCD data format
ganlikun	0:13413ea9a877	715	* @note You must call HAL_RTC_GetDate() after HAL_RTC_GetTime() to unlock the values
ganlikun	0:13413ea9a877	716	* in the higher-order calendar shadow registers to ensure consistency between the time and date values.
ganlikun	0:13413ea9a877	717	* Reading RTC current time locks the values in calendar shadow registers until Current date is read.
ganlikun	0:13413ea9a877	718	* @retval HAL status
ganlikun	0:13413ea9a877	719	*/
ganlikun	0:13413ea9a877	720	HAL_StatusTypeDef HAL_RTC_GetDate(RTC_HandleTypeDef hrtc, RTC_DateTypeDef sDate, uint32_t Format)
ganlikun	0:13413ea9a877	721	{
ganlikun	0:13413ea9a877	722	uint32_t datetmpreg = 0U;
ganlikun	0:13413ea9a877	723
ganlikun	0:13413ea9a877	724	/* Check the parameters */
ganlikun	0:13413ea9a877	725	assert_param(IS_RTC_FORMAT(Format));
ganlikun	0:13413ea9a877	726
ganlikun	0:13413ea9a877	727	/* Get the DR register */
ganlikun	0:13413ea9a877	728	datetmpreg = (uint32_t)(hrtc->Instance->DR & RTC_DR_RESERVED_MASK);
ganlikun	0:13413ea9a877	729
ganlikun	0:13413ea9a877	730	/* Fill the structure fields with the read parameters */
ganlikun	0:13413ea9a877	731	sDate->Year = (uint8_t)((datetmpreg & (RTC_DR_YT \| RTC_DR_YU)) >> 16U);
ganlikun	0:13413ea9a877	732	sDate->Month = (uint8_t)((datetmpreg & (RTC_DR_MT \| RTC_DR_MU)) >> 8U);
ganlikun	0:13413ea9a877	733	sDate->Date = (uint8_t)(datetmpreg & (RTC_DR_DT \| RTC_DR_DU));
ganlikun	0:13413ea9a877	734	sDate->WeekDay = (uint8_t)((datetmpreg & (RTC_DR_WDU)) >> 13U);
ganlikun	0:13413ea9a877	735
ganlikun	0:13413ea9a877	736	/* Check the input parameters format */
ganlikun	0:13413ea9a877	737	if(Format == RTC_FORMAT_BIN)
ganlikun	0:13413ea9a877	738	{
ganlikun	0:13413ea9a877	739	/* Convert the date structure parameters to Binary format */
ganlikun	0:13413ea9a877	740	sDate->Year = (uint8_t)RTC_Bcd2ToByte(sDate->Year);
ganlikun	0:13413ea9a877	741	sDate->Month = (uint8_t)RTC_Bcd2ToByte(sDate->Month);
ganlikun	0:13413ea9a877	742	sDate->Date = (uint8_t)RTC_Bcd2ToByte(sDate->Date);
ganlikun	0:13413ea9a877	743	}
ganlikun	0:13413ea9a877	744	return HAL_OK;
ganlikun	0:13413ea9a877	745	}
ganlikun	0:13413ea9a877	746
ganlikun	0:13413ea9a877	747	/**
ganlikun	0:13413ea9a877	748	* @}
ganlikun	0:13413ea9a877	749	*/
ganlikun	0:13413ea9a877	750
ganlikun	0:13413ea9a877	751	/** @defgroup RTC_Exported_Functions_Group3 RTC Alarm functions
ganlikun	0:13413ea9a877	752	* @brief RTC Alarm functions
ganlikun	0:13413ea9a877	753	*
ganlikun	0:13413ea9a877	754	@verbatim
ganlikun	0:13413ea9a877	755	===============================================================================
ganlikun	0:13413ea9a877	756	##### RTC Alarm functions #####
ganlikun	0:13413ea9a877	757	===============================================================================
ganlikun	0:13413ea9a877	758
ganlikun	0:13413ea9a877	759	[..] This section provides functions allowing to configure Alarm feature
ganlikun	0:13413ea9a877	760
ganlikun	0:13413ea9a877	761	@endverbatim
ganlikun	0:13413ea9a877	762	* @{
ganlikun	0:13413ea9a877	763	*/
ganlikun	0:13413ea9a877	764	/**
ganlikun	0:13413ea9a877	765	* @brief Sets the specified RTC Alarm.
ganlikun	0:13413ea9a877	766	* @param hrtc: pointer to a RTC_HandleTypeDef structure that contains
ganlikun	0:13413ea9a877	767	* the configuration information for RTC.
ganlikun	0:13413ea9a877	768	* @param sAlarm: Pointer to Alarm structure
ganlikun	0:13413ea9a877	769	* @param Format: Specifies the format of the entered parameters.
ganlikun	0:13413ea9a877	770	* This parameter can be one of the following values:
ganlikun	0:13413ea9a877	771	* @arg RTC_FORMAT_BIN: Binary data format
ganlikun	0:13413ea9a877	772	* @arg RTC_FORMAT_BCD: BCD data format
ganlikun	0:13413ea9a877	773	* @retval HAL status
ganlikun	0:13413ea9a877	774	*/
ganlikun	0:13413ea9a877	775	HAL_StatusTypeDef HAL_RTC_SetAlarm(RTC_HandleTypeDef hrtc, RTC_AlarmTypeDef sAlarm, uint32_t Format)
ganlikun	0:13413ea9a877	776	{
ganlikun	0:13413ea9a877	777	uint32_t tickstart = 0U;
ganlikun	0:13413ea9a877	778	uint32_t tmpreg = 0U, subsecondtmpreg = 0U;
ganlikun	0:13413ea9a877	779
ganlikun	0:13413ea9a877	780	/* Check the parameters */
ganlikun	0:13413ea9a877	781	assert_param(IS_RTC_FORMAT(Format));
ganlikun	0:13413ea9a877	782	assert_param(IS_RTC_ALARM(sAlarm->Alarm));
ganlikun	0:13413ea9a877	783	assert_param(IS_RTC_ALARM_MASK(sAlarm->AlarmMask));
ganlikun	0:13413ea9a877	784	assert_param(IS_RTC_ALARM_DATE_WEEKDAY_SEL(sAlarm->AlarmDateWeekDaySel));
ganlikun	0:13413ea9a877	785	assert_param(IS_RTC_ALARM_SUB_SECOND_VALUE(sAlarm->AlarmTime.SubSeconds));
ganlikun	0:13413ea9a877	786	assert_param(IS_RTC_ALARM_SUB_SECOND_MASK(sAlarm->AlarmSubSecondMask));
ganlikun	0:13413ea9a877	787
ganlikun	0:13413ea9a877	788	/* Process Locked */
ganlikun	0:13413ea9a877	789	__HAL_LOCK(hrtc);
ganlikun	0:13413ea9a877	790
ganlikun	0:13413ea9a877	791	hrtc->State = HAL_RTC_STATE_BUSY;
ganlikun	0:13413ea9a877	792
ganlikun	0:13413ea9a877	793	if(Format == RTC_FORMAT_BIN)
ganlikun	0:13413ea9a877	794	{
ganlikun	0:13413ea9a877	795	if((hrtc->Instance->CR & RTC_CR_FMT) != (uint32_t)RESET)
ganlikun	0:13413ea9a877	796	{
ganlikun	0:13413ea9a877	797	assert_param(IS_RTC_HOUR12(sAlarm->AlarmTime.Hours));
ganlikun	0:13413ea9a877	798	assert_param(IS_RTC_HOURFORMAT12(sAlarm->AlarmTime.TimeFormat));
ganlikun	0:13413ea9a877	799	}
ganlikun	0:13413ea9a877	800	else
ganlikun	0:13413ea9a877	801	{
ganlikun	0:13413ea9a877	802	sAlarm->AlarmTime.TimeFormat = 0x00U;
ganlikun	0:13413ea9a877	803	assert_param(IS_RTC_HOUR24(sAlarm->AlarmTime.Hours));
ganlikun	0:13413ea9a877	804	}
ganlikun	0:13413ea9a877	805	assert_param(IS_RTC_MINUTES(sAlarm->AlarmTime.Minutes));
ganlikun	0:13413ea9a877	806	assert_param(IS_RTC_SECONDS(sAlarm->AlarmTime.Seconds));
ganlikun	0:13413ea9a877	807
ganlikun	0:13413ea9a877	808	if(sAlarm->AlarmDateWeekDaySel == RTC_ALARMDATEWEEKDAYSEL_DATE)
ganlikun	0:13413ea9a877	809	{
ganlikun	0:13413ea9a877	810	assert_param(IS_RTC_ALARM_DATE_WEEKDAY_DATE(sAlarm->AlarmDateWeekDay));
ganlikun	0:13413ea9a877	811	}
ganlikun	0:13413ea9a877	812	else
ganlikun	0:13413ea9a877	813	{
ganlikun	0:13413ea9a877	814	assert_param(IS_RTC_ALARM_DATE_WEEKDAY_WEEKDAY(sAlarm->AlarmDateWeekDay));
ganlikun	0:13413ea9a877	815	}
ganlikun	0:13413ea9a877	816
ganlikun	0:13413ea9a877	817	tmpreg = (((uint32_t)RTC_ByteToBcd2(sAlarm->AlarmTime.Hours) << 16U) \| \
ganlikun	0:13413ea9a877	818	((uint32_t)RTC_ByteToBcd2(sAlarm->AlarmTime.Minutes) << 8U) \| \
ganlikun	0:13413ea9a877	819	((uint32_t)RTC_ByteToBcd2(sAlarm->AlarmTime.Seconds)) \| \
ganlikun	0:13413ea9a877	820	((uint32_t)(sAlarm->AlarmTime.TimeFormat) << 16U) \| \
ganlikun	0:13413ea9a877	821	((uint32_t)RTC_ByteToBcd2(sAlarm->AlarmDateWeekDay) << 24U) \| \
ganlikun	0:13413ea9a877	822	((uint32_t)sAlarm->AlarmDateWeekDaySel) \| \
ganlikun	0:13413ea9a877	823	((uint32_t)sAlarm->AlarmMask));
ganlikun	0:13413ea9a877	824	}
ganlikun	0:13413ea9a877	825	else
ganlikun	0:13413ea9a877	826	{
ganlikun	0:13413ea9a877	827	if((hrtc->Instance->CR & RTC_CR_FMT) != (uint32_t)RESET)
ganlikun	0:13413ea9a877	828	{
ganlikun	0:13413ea9a877	829	tmpreg = RTC_Bcd2ToByte(sAlarm->AlarmTime.Hours);
ganlikun	0:13413ea9a877	830	assert_param(IS_RTC_HOUR12(tmpreg));
ganlikun	0:13413ea9a877	831	assert_param(IS_RTC_HOURFORMAT12(sAlarm->AlarmTime.TimeFormat));
ganlikun	0:13413ea9a877	832	}
ganlikun	0:13413ea9a877	833	else
ganlikun	0:13413ea9a877	834	{
ganlikun	0:13413ea9a877	835	sAlarm->AlarmTime.TimeFormat = 0x00U;
ganlikun	0:13413ea9a877	836	assert_param(IS_RTC_HOUR24(RTC_Bcd2ToByte(sAlarm->AlarmTime.Hours)));
ganlikun	0:13413ea9a877	837	}
ganlikun	0:13413ea9a877	838
ganlikun	0:13413ea9a877	839	assert_param(IS_RTC_MINUTES(RTC_Bcd2ToByte(sAlarm->AlarmTime.Minutes)));
ganlikun	0:13413ea9a877	840	assert_param(IS_RTC_SECONDS(RTC_Bcd2ToByte(sAlarm->AlarmTime.Seconds)));
ganlikun	0:13413ea9a877	841
ganlikun	0:13413ea9a877	842	if(sAlarm->AlarmDateWeekDaySel == RTC_ALARMDATEWEEKDAYSEL_DATE)
ganlikun	0:13413ea9a877	843	{
ganlikun	0:13413ea9a877	844	tmpreg = RTC_Bcd2ToByte(sAlarm->AlarmDateWeekDay);
ganlikun	0:13413ea9a877	845	assert_param(IS_RTC_ALARM_DATE_WEEKDAY_DATE(tmpreg));
ganlikun	0:13413ea9a877	846	}
ganlikun	0:13413ea9a877	847	else
ganlikun	0:13413ea9a877	848	{
ganlikun	0:13413ea9a877	849	tmpreg = RTC_Bcd2ToByte(sAlarm->AlarmDateWeekDay);
ganlikun	0:13413ea9a877	850	assert_param(IS_RTC_ALARM_DATE_WEEKDAY_WEEKDAY(tmpreg));
ganlikun	0:13413ea9a877	851	}
ganlikun	0:13413ea9a877	852
ganlikun	0:13413ea9a877	853	tmpreg = (((uint32_t)(sAlarm->AlarmTime.Hours) << 16U) \| \
ganlikun	0:13413ea9a877	854	((uint32_t)(sAlarm->AlarmTime.Minutes) << 8U) \| \
ganlikun	0:13413ea9a877	855	((uint32_t) sAlarm->AlarmTime.Seconds) \| \
ganlikun	0:13413ea9a877	856	((uint32_t)(sAlarm->AlarmTime.TimeFormat) << 16U) \| \
ganlikun	0:13413ea9a877	857	((uint32_t)(sAlarm->AlarmDateWeekDay) << 24U) \| \
ganlikun	0:13413ea9a877	858	((uint32_t)sAlarm->AlarmDateWeekDaySel) \| \
ganlikun	0:13413ea9a877	859	((uint32_t)sAlarm->AlarmMask));
ganlikun	0:13413ea9a877	860	}
ganlikun	0:13413ea9a877	861
ganlikun	0:13413ea9a877	862	/* Configure the Alarm A or Alarm B Sub Second registers */
ganlikun	0:13413ea9a877	863	subsecondtmpreg = (uint32_t)((uint32_t)(sAlarm->AlarmTime.SubSeconds) \| (uint32_t)(sAlarm->AlarmSubSecondMask));
ganlikun	0:13413ea9a877	864
ganlikun	0:13413ea9a877	865	/* Disable the write protection for RTC registers */
ganlikun	0:13413ea9a877	866	__HAL_RTC_WRITEPROTECTION_DISABLE(hrtc);
ganlikun	0:13413ea9a877	867
ganlikun	0:13413ea9a877	868	/* Configure the Alarm register */
ganlikun	0:13413ea9a877	869	if(sAlarm->Alarm == RTC_ALARM_A)
ganlikun	0:13413ea9a877	870	{
ganlikun	0:13413ea9a877	871	/* Disable the Alarm A interrupt */
ganlikun	0:13413ea9a877	872	__HAL_RTC_ALARMA_DISABLE(hrtc);
ganlikun	0:13413ea9a877	873
ganlikun	0:13413ea9a877	874	/* In case of interrupt mode is used, the interrupt source must disabled */
ganlikun	0:13413ea9a877	875	__HAL_RTC_ALARM_DISABLE_IT(hrtc, RTC_IT_ALRA);
ganlikun	0:13413ea9a877	876
ganlikun	0:13413ea9a877	877	/* Get tick */
ganlikun	0:13413ea9a877	878	tickstart = HAL_GetTick();
ganlikun	0:13413ea9a877	879
ganlikun	0:13413ea9a877	880	/* Wait till RTC ALRAWF flag is set and if Time out is reached exit */
ganlikun	0:13413ea9a877	881	while(__HAL_RTC_ALARM_GET_FLAG(hrtc, RTC_FLAG_ALRAWF) == RESET)
ganlikun	0:13413ea9a877	882	{
ganlikun	0:13413ea9a877	883	if((HAL_GetTick() - tickstart ) > RTC_TIMEOUT_VALUE)
ganlikun	0:13413ea9a877	884	{
ganlikun	0:13413ea9a877	885	/* Enable the write protection for RTC registers */
ganlikun	0:13413ea9a877	886	__HAL_RTC_WRITEPROTECTION_ENABLE(hrtc);
ganlikun	0:13413ea9a877	887
ganlikun	0:13413ea9a877	888	hrtc->State = HAL_RTC_STATE_TIMEOUT;
ganlikun	0:13413ea9a877	889
ganlikun	0:13413ea9a877	890	/* Process Unlocked */
ganlikun	0:13413ea9a877	891	__HAL_UNLOCK(hrtc);
ganlikun	0:13413ea9a877	892
ganlikun	0:13413ea9a877	893	return HAL_TIMEOUT;
ganlikun	0:13413ea9a877	894	}
ganlikun	0:13413ea9a877	895	}
ganlikun	0:13413ea9a877	896
ganlikun	0:13413ea9a877	897	hrtc->Instance->ALRMAR = (uint32_t)tmpreg;
ganlikun	0:13413ea9a877	898	/* Configure the Alarm A Sub Second register */
ganlikun	0:13413ea9a877	899	hrtc->Instance->ALRMASSR = subsecondtmpreg;
ganlikun	0:13413ea9a877	900	/* Configure the Alarm state: Enable Alarm */
ganlikun	0:13413ea9a877	901	__HAL_RTC_ALARMA_ENABLE(hrtc);
ganlikun	0:13413ea9a877	902	}
ganlikun	0:13413ea9a877	903	else
ganlikun	0:13413ea9a877	904	{
ganlikun	0:13413ea9a877	905	/* Disable the Alarm B interrupt */
ganlikun	0:13413ea9a877	906	__HAL_RTC_ALARMB_DISABLE(hrtc);
ganlikun	0:13413ea9a877	907
ganlikun	0:13413ea9a877	908	/* In case of interrupt mode is used, the interrupt source must disabled */
ganlikun	0:13413ea9a877	909	__HAL_RTC_ALARM_DISABLE_IT(hrtc, RTC_IT_ALRB);
ganlikun	0:13413ea9a877	910
ganlikun	0:13413ea9a877	911	/* Get tick */
ganlikun	0:13413ea9a877	912	tickstart = HAL_GetTick();
ganlikun	0:13413ea9a877	913
ganlikun	0:13413ea9a877	914	/* Wait till RTC ALRBWF flag is set and if Time out is reached exit */
ganlikun	0:13413ea9a877	915	while(__HAL_RTC_ALARM_GET_FLAG(hrtc, RTC_FLAG_ALRBWF) == RESET)
ganlikun	0:13413ea9a877	916	{
ganlikun	0:13413ea9a877	917	if((HAL_GetTick() - tickstart ) > RTC_TIMEOUT_VALUE)
ganlikun	0:13413ea9a877	918	{
ganlikun	0:13413ea9a877	919	/* Enable the write protection for RTC registers */
ganlikun	0:13413ea9a877	920	__HAL_RTC_WRITEPROTECTION_ENABLE(hrtc);
ganlikun	0:13413ea9a877	921
ganlikun	0:13413ea9a877	922	hrtc->State = HAL_RTC_STATE_TIMEOUT;
ganlikun	0:13413ea9a877	923
ganlikun	0:13413ea9a877	924	/* Process Unlocked */
ganlikun	0:13413ea9a877	925	__HAL_UNLOCK(hrtc);
ganlikun	0:13413ea9a877	926
ganlikun	0:13413ea9a877	927	return HAL_TIMEOUT;
ganlikun	0:13413ea9a877	928	}
ganlikun	0:13413ea9a877	929	}
ganlikun	0:13413ea9a877	930
ganlikun	0:13413ea9a877	931	hrtc->Instance->ALRMBR = (uint32_t)tmpreg;
ganlikun	0:13413ea9a877	932	/* Configure the Alarm B Sub Second register */
ganlikun	0:13413ea9a877	933	hrtc->Instance->ALRMBSSR = subsecondtmpreg;
ganlikun	0:13413ea9a877	934	/* Configure the Alarm state: Enable Alarm */
ganlikun	0:13413ea9a877	935	__HAL_RTC_ALARMB_ENABLE(hrtc);
ganlikun	0:13413ea9a877	936	}
ganlikun	0:13413ea9a877	937
ganlikun	0:13413ea9a877	938	/* Enable the write protection for RTC registers */
ganlikun	0:13413ea9a877	939	__HAL_RTC_WRITEPROTECTION_ENABLE(hrtc);
ganlikun	0:13413ea9a877	940
ganlikun	0:13413ea9a877	941	/* Change RTC state */
ganlikun	0:13413ea9a877	942	hrtc->State = HAL_RTC_STATE_READY;
ganlikun	0:13413ea9a877	943
ganlikun	0:13413ea9a877	944	/* Process Unlocked */
ganlikun	0:13413ea9a877	945	__HAL_UNLOCK(hrtc);
ganlikun	0:13413ea9a877	946
ganlikun	0:13413ea9a877	947	return HAL_OK;
ganlikun	0:13413ea9a877	948	}
ganlikun	0:13413ea9a877	949
ganlikun	0:13413ea9a877	950	/**
ganlikun	0:13413ea9a877	951	* @brief Sets the specified RTC Alarm with Interrupt
ganlikun	0:13413ea9a877	952	* @param hrtc: pointer to a RTC_HandleTypeDef structure that contains
ganlikun	0:13413ea9a877	953	* the configuration information for RTC.
ganlikun	0:13413ea9a877	954	* @param sAlarm: Pointer to Alarm structure
ganlikun	0:13413ea9a877	955	* @param Format: Specifies the format of the entered parameters.
ganlikun	0:13413ea9a877	956	* This parameter can be one of the following values:
ganlikun	0:13413ea9a877	957	* @arg RTC_FORMAT_BIN: Binary data format
ganlikun	0:13413ea9a877	958	* @arg RTC_FORMAT_BCD: BCD data format
ganlikun	0:13413ea9a877	959	* @retval HAL status
ganlikun	0:13413ea9a877	960	*/
ganlikun	0:13413ea9a877	961	HAL_StatusTypeDef HAL_RTC_SetAlarm_IT(RTC_HandleTypeDef hrtc, RTC_AlarmTypeDef sAlarm, uint32_t Format)
ganlikun	0:13413ea9a877	962	{
ganlikun	0:13413ea9a877	963	uint32_t tmpreg = 0U, subsecondtmpreg = 0U;
ganlikun	0:13413ea9a877	964	__IO uint32_t count = RTC_TIMEOUT_VALUE * (SystemCoreClock / 32U / 1000U) ;
ganlikun	0:13413ea9a877	965
ganlikun	0:13413ea9a877	966	/* Check the parameters */
ganlikun	0:13413ea9a877	967	assert_param(IS_RTC_FORMAT(Format));
ganlikun	0:13413ea9a877	968	assert_param(IS_RTC_ALARM(sAlarm->Alarm));
ganlikun	0:13413ea9a877	969	assert_param(IS_RTC_ALARM_MASK(sAlarm->AlarmMask));
ganlikun	0:13413ea9a877	970	assert_param(IS_RTC_ALARM_DATE_WEEKDAY_SEL(sAlarm->AlarmDateWeekDaySel));
ganlikun	0:13413ea9a877	971	assert_param(IS_RTC_ALARM_SUB_SECOND_VALUE(sAlarm->AlarmTime.SubSeconds));
ganlikun	0:13413ea9a877	972	assert_param(IS_RTC_ALARM_SUB_SECOND_MASK(sAlarm->AlarmSubSecondMask));
ganlikun	0:13413ea9a877	973
ganlikun	0:13413ea9a877	974	/* Process Locked */
ganlikun	0:13413ea9a877	975	__HAL_LOCK(hrtc);
ganlikun	0:13413ea9a877	976
ganlikun	0:13413ea9a877	977	hrtc->State = HAL_RTC_STATE_BUSY;
ganlikun	0:13413ea9a877	978
ganlikun	0:13413ea9a877	979	if(Format == RTC_FORMAT_BIN)
ganlikun	0:13413ea9a877	980	{
ganlikun	0:13413ea9a877	981	if((hrtc->Instance->CR & RTC_CR_FMT) != (uint32_t)RESET)
ganlikun	0:13413ea9a877	982	{
ganlikun	0:13413ea9a877	983	assert_param(IS_RTC_HOUR12(sAlarm->AlarmTime.Hours));
ganlikun	0:13413ea9a877	984	assert_param(IS_RTC_HOURFORMAT12(sAlarm->AlarmTime.TimeFormat));
ganlikun	0:13413ea9a877	985	}
ganlikun	0:13413ea9a877	986	else
ganlikun	0:13413ea9a877	987	{
ganlikun	0:13413ea9a877	988	sAlarm->AlarmTime.TimeFormat = 0x00U;
ganlikun	0:13413ea9a877	989	assert_param(IS_RTC_HOUR24(sAlarm->AlarmTime.Hours));
ganlikun	0:13413ea9a877	990	}
ganlikun	0:13413ea9a877	991	assert_param(IS_RTC_MINUTES(sAlarm->AlarmTime.Minutes));
ganlikun	0:13413ea9a877	992	assert_param(IS_RTC_SECONDS(sAlarm->AlarmTime.Seconds));
ganlikun	0:13413ea9a877	993
ganlikun	0:13413ea9a877	994	if(sAlarm->AlarmDateWeekDaySel == RTC_ALARMDATEWEEKDAYSEL_DATE)
ganlikun	0:13413ea9a877	995	{
ganlikun	0:13413ea9a877	996	assert_param(IS_RTC_ALARM_DATE_WEEKDAY_DATE(sAlarm->AlarmDateWeekDay));
ganlikun	0:13413ea9a877	997	}
ganlikun	0:13413ea9a877	998	else
ganlikun	0:13413ea9a877	999	{
ganlikun	0:13413ea9a877	1000	assert_param(IS_RTC_ALARM_DATE_WEEKDAY_WEEKDAY(sAlarm->AlarmDateWeekDay));
ganlikun	0:13413ea9a877	1001	}
ganlikun	0:13413ea9a877	1002	tmpreg = (((uint32_t)RTC_ByteToBcd2(sAlarm->AlarmTime.Hours) << 16U) \| \
ganlikun	0:13413ea9a877	1003	((uint32_t)RTC_ByteToBcd2(sAlarm->AlarmTime.Minutes) << 8U) \| \
ganlikun	0:13413ea9a877	1004	((uint32_t)RTC_ByteToBcd2(sAlarm->AlarmTime.Seconds)) \| \
ganlikun	0:13413ea9a877	1005	((uint32_t)(sAlarm->AlarmTime.TimeFormat) << 16U) \| \
ganlikun	0:13413ea9a877	1006	((uint32_t)RTC_ByteToBcd2(sAlarm->AlarmDateWeekDay) << 24U) \| \
ganlikun	0:13413ea9a877	1007	((uint32_t)sAlarm->AlarmDateWeekDaySel) \| \
ganlikun	0:13413ea9a877	1008	((uint32_t)sAlarm->AlarmMask));
ganlikun	0:13413ea9a877	1009	}
ganlikun	0:13413ea9a877	1010	else
ganlikun	0:13413ea9a877	1011	{
ganlikun	0:13413ea9a877	1012	if((hrtc->Instance->CR & RTC_CR_FMT) != (uint32_t)RESET)
ganlikun	0:13413ea9a877	1013	{
ganlikun	0:13413ea9a877	1014	tmpreg = RTC_Bcd2ToByte(sAlarm->AlarmTime.Hours);
ganlikun	0:13413ea9a877	1015	assert_param(IS_RTC_HOUR12(tmpreg));
ganlikun	0:13413ea9a877	1016	assert_param(IS_RTC_HOURFORMAT12(sAlarm->AlarmTime.TimeFormat));
ganlikun	0:13413ea9a877	1017	}
ganlikun	0:13413ea9a877	1018	else
ganlikun	0:13413ea9a877	1019	{
ganlikun	0:13413ea9a877	1020	sAlarm->AlarmTime.TimeFormat = 0x00U;
ganlikun	0:13413ea9a877	1021	assert_param(IS_RTC_HOUR24(RTC_Bcd2ToByte(sAlarm->AlarmTime.Hours)));
ganlikun	0:13413ea9a877	1022	}
ganlikun	0:13413ea9a877	1023
ganlikun	0:13413ea9a877	1024	assert_param(IS_RTC_MINUTES(RTC_Bcd2ToByte(sAlarm->AlarmTime.Minutes)));
ganlikun	0:13413ea9a877	1025	assert_param(IS_RTC_SECONDS(RTC_Bcd2ToByte(sAlarm->AlarmTime.Seconds)));
ganlikun	0:13413ea9a877	1026
ganlikun	0:13413ea9a877	1027	if(sAlarm->AlarmDateWeekDaySel == RTC_ALARMDATEWEEKDAYSEL_DATE)
ganlikun	0:13413ea9a877	1028	{
ganlikun	0:13413ea9a877	1029	tmpreg = RTC_Bcd2ToByte(sAlarm->AlarmDateWeekDay);
ganlikun	0:13413ea9a877	1030	assert_param(IS_RTC_ALARM_DATE_WEEKDAY_DATE(tmpreg));
ganlikun	0:13413ea9a877	1031	}
ganlikun	0:13413ea9a877	1032	else
ganlikun	0:13413ea9a877	1033	{
ganlikun	0:13413ea9a877	1034	tmpreg = RTC_Bcd2ToByte(sAlarm->AlarmDateWeekDay);
ganlikun	0:13413ea9a877	1035	assert_param(IS_RTC_ALARM_DATE_WEEKDAY_WEEKDAY(tmpreg));
ganlikun	0:13413ea9a877	1036	}
ganlikun	0:13413ea9a877	1037	tmpreg = (((uint32_t)(sAlarm->AlarmTime.Hours) << 16U) \| \
ganlikun	0:13413ea9a877	1038	((uint32_t)(sAlarm->AlarmTime.Minutes) << 8U) \| \
ganlikun	0:13413ea9a877	1039	((uint32_t) sAlarm->AlarmTime.Seconds) \| \
ganlikun	0:13413ea9a877	1040	((uint32_t)(sAlarm->AlarmTime.TimeFormat) << 16U) \| \
ganlikun	0:13413ea9a877	1041	((uint32_t)(sAlarm->AlarmDateWeekDay) << 24U) \| \
ganlikun	0:13413ea9a877	1042	((uint32_t)sAlarm->AlarmDateWeekDaySel) \| \
ganlikun	0:13413ea9a877	1043	((uint32_t)sAlarm->AlarmMask));
ganlikun	0:13413ea9a877	1044	}
ganlikun	0:13413ea9a877	1045	/* Configure the Alarm A or Alarm B Sub Second registers */
ganlikun	0:13413ea9a877	1046	subsecondtmpreg = (uint32_t)((uint32_t)(sAlarm->AlarmTime.SubSeconds) \| (uint32_t)(sAlarm->AlarmSubSecondMask));
ganlikun	0:13413ea9a877	1047
ganlikun	0:13413ea9a877	1048	/* Disable the write protection for RTC registers */
ganlikun	0:13413ea9a877	1049	__HAL_RTC_WRITEPROTECTION_DISABLE(hrtc);
ganlikun	0:13413ea9a877	1050
ganlikun	0:13413ea9a877	1051	/* Configure the Alarm register */
ganlikun	0:13413ea9a877	1052	if(sAlarm->Alarm == RTC_ALARM_A)
ganlikun	0:13413ea9a877	1053	{
ganlikun	0:13413ea9a877	1054	/* Disable the Alarm A interrupt */
ganlikun	0:13413ea9a877	1055	__HAL_RTC_ALARMA_DISABLE(hrtc);
ganlikun	0:13413ea9a877	1056
ganlikun	0:13413ea9a877	1057	/* Clear flag alarm A */
ganlikun	0:13413ea9a877	1058	__HAL_RTC_ALARM_CLEAR_FLAG(hrtc, RTC_FLAG_ALRAF);
ganlikun	0:13413ea9a877	1059
ganlikun	0:13413ea9a877	1060	/* Wait till RTC ALRAWF flag is set and if Time out is reached exit */
ganlikun	0:13413ea9a877	1061	do
ganlikun	0:13413ea9a877	1062	{
ganlikun	0:13413ea9a877	1063	if (count-- == 0U)
ganlikun	0:13413ea9a877	1064	{
ganlikun	0:13413ea9a877	1065	/* Enable the write protection for RTC registers */
ganlikun	0:13413ea9a877	1066	__HAL_RTC_WRITEPROTECTION_ENABLE(hrtc);
ganlikun	0:13413ea9a877	1067
ganlikun	0:13413ea9a877	1068	hrtc->State = HAL_RTC_STATE_TIMEOUT;
ganlikun	0:13413ea9a877	1069
ganlikun	0:13413ea9a877	1070	/* Process Unlocked */
ganlikun	0:13413ea9a877	1071	__HAL_UNLOCK(hrtc);
ganlikun	0:13413ea9a877	1072
ganlikun	0:13413ea9a877	1073	return HAL_TIMEOUT;
ganlikun	0:13413ea9a877	1074	}
ganlikun	0:13413ea9a877	1075	}
ganlikun	0:13413ea9a877	1076	while (__HAL_RTC_ALARM_GET_FLAG(hrtc, RTC_FLAG_ALRAWF) == RESET);
ganlikun	0:13413ea9a877	1077
ganlikun	0:13413ea9a877	1078	hrtc->Instance->ALRMAR = (uint32_t)tmpreg;
ganlikun	0:13413ea9a877	1079	/* Configure the Alarm A Sub Second register */
ganlikun	0:13413ea9a877	1080	hrtc->Instance->ALRMASSR = subsecondtmpreg;
ganlikun	0:13413ea9a877	1081	/* Configure the Alarm state: Enable Alarm */
ganlikun	0:13413ea9a877	1082	__HAL_RTC_ALARMA_ENABLE(hrtc);
ganlikun	0:13413ea9a877	1083	/* Configure the Alarm interrupt */
ganlikun	0:13413ea9a877	1084	__HAL_RTC_ALARM_ENABLE_IT(hrtc,RTC_IT_ALRA);
ganlikun	0:13413ea9a877	1085	}
ganlikun	0:13413ea9a877	1086	else
ganlikun	0:13413ea9a877	1087	{
ganlikun	0:13413ea9a877	1088	/* Disable the Alarm B interrupt */
ganlikun	0:13413ea9a877	1089	__HAL_RTC_ALARMB_DISABLE(hrtc);
ganlikun	0:13413ea9a877	1090
ganlikun	0:13413ea9a877	1091	/* Clear flag alarm B */
ganlikun	0:13413ea9a877	1092	__HAL_RTC_ALARM_CLEAR_FLAG(hrtc, RTC_FLAG_ALRBF);
ganlikun	0:13413ea9a877	1093
ganlikun	0:13413ea9a877	1094	/* Wait till RTC ALRBWF flag is set and if Time out is reached exit */
ganlikun	0:13413ea9a877	1095	do
ganlikun	0:13413ea9a877	1096	{
ganlikun	0:13413ea9a877	1097	if (count-- == 0U)
ganlikun	0:13413ea9a877	1098	{
ganlikun	0:13413ea9a877	1099	/* Enable the write protection for RTC registers */
ganlikun	0:13413ea9a877	1100	__HAL_RTC_WRITEPROTECTION_ENABLE(hrtc);
ganlikun	0:13413ea9a877	1101
ganlikun	0:13413ea9a877	1102	hrtc->State = HAL_RTC_STATE_TIMEOUT;
ganlikun	0:13413ea9a877	1103
ganlikun	0:13413ea9a877	1104	/* Process Unlocked */
ganlikun	0:13413ea9a877	1105	__HAL_UNLOCK(hrtc);
ganlikun	0:13413ea9a877	1106
ganlikun	0:13413ea9a877	1107	return HAL_TIMEOUT;
ganlikun	0:13413ea9a877	1108	}
ganlikun	0:13413ea9a877	1109	}
ganlikun	0:13413ea9a877	1110	while (__HAL_RTC_ALARM_GET_FLAG(hrtc, RTC_FLAG_ALRBWF) == RESET);
ganlikun	0:13413ea9a877	1111
ganlikun	0:13413ea9a877	1112	hrtc->Instance->ALRMBR = (uint32_t)tmpreg;
ganlikun	0:13413ea9a877	1113	/* Configure the Alarm B Sub Second register */
ganlikun	0:13413ea9a877	1114	hrtc->Instance->ALRMBSSR = subsecondtmpreg;
ganlikun	0:13413ea9a877	1115	/* Configure the Alarm state: Enable Alarm */
ganlikun	0:13413ea9a877	1116	__HAL_RTC_ALARMB_ENABLE(hrtc);
ganlikun	0:13413ea9a877	1117	/* Configure the Alarm interrupt */
ganlikun	0:13413ea9a877	1118	__HAL_RTC_ALARM_ENABLE_IT(hrtc, RTC_IT_ALRB);
ganlikun	0:13413ea9a877	1119	}
ganlikun	0:13413ea9a877	1120
ganlikun	0:13413ea9a877	1121	/* RTC Alarm Interrupt Configuration: EXTI configuration */
ganlikun	0:13413ea9a877	1122	__HAL_RTC_ALARM_EXTI_ENABLE_IT();
ganlikun	0:13413ea9a877	1123
ganlikun	0:13413ea9a877	1124	EXTI->RTSR \|= RTC_EXTI_LINE_ALARM_EVENT;
ganlikun	0:13413ea9a877	1125
ganlikun	0:13413ea9a877	1126	/* Enable the write protection for RTC registers */
ganlikun	0:13413ea9a877	1127	__HAL_RTC_WRITEPROTECTION_ENABLE(hrtc);
ganlikun	0:13413ea9a877	1128
ganlikun	0:13413ea9a877	1129	hrtc->State = HAL_RTC_STATE_READY;
ganlikun	0:13413ea9a877	1130
ganlikun	0:13413ea9a877	1131	/* Process Unlocked */
ganlikun	0:13413ea9a877	1132	__HAL_UNLOCK(hrtc);
ganlikun	0:13413ea9a877	1133
ganlikun	0:13413ea9a877	1134	return HAL_OK;
ganlikun	0:13413ea9a877	1135	}
ganlikun	0:13413ea9a877	1136
ganlikun	0:13413ea9a877	1137	/**
ganlikun	0:13413ea9a877	1138	* @brief Deactivate the specified RTC Alarm
ganlikun	0:13413ea9a877	1139	* @param hrtc: pointer to a RTC_HandleTypeDef structure that contains
ganlikun	0:13413ea9a877	1140	* the configuration information for RTC.
ganlikun	0:13413ea9a877	1141	* @param Alarm: Specifies the Alarm.
ganlikun	0:13413ea9a877	1142	* This parameter can be one of the following values:
ganlikun	0:13413ea9a877	1143	* @arg RTC_ALARM_A: AlarmA
ganlikun	0:13413ea9a877	1144	* @arg RTC_ALARM_B: AlarmB
ganlikun	0:13413ea9a877	1145	* @retval HAL status
ganlikun	0:13413ea9a877	1146	*/
ganlikun	0:13413ea9a877	1147	HAL_StatusTypeDef HAL_RTC_DeactivateAlarm(RTC_HandleTypeDef *hrtc, uint32_t Alarm)
ganlikun	0:13413ea9a877	1148	{
ganlikun	0:13413ea9a877	1149	uint32_t tickstart = 0U;
ganlikun	0:13413ea9a877	1150
ganlikun	0:13413ea9a877	1151	/* Check the parameters */
ganlikun	0:13413ea9a877	1152	assert_param(IS_RTC_ALARM(Alarm));
ganlikun	0:13413ea9a877	1153
ganlikun	0:13413ea9a877	1154	/* Process Locked */
ganlikun	0:13413ea9a877	1155	__HAL_LOCK(hrtc);
ganlikun	0:13413ea9a877	1156
ganlikun	0:13413ea9a877	1157	hrtc->State = HAL_RTC_STATE_BUSY;
ganlikun	0:13413ea9a877	1158
ganlikun	0:13413ea9a877	1159	/* Disable the write protection for RTC registers */
ganlikun	0:13413ea9a877	1160	__HAL_RTC_WRITEPROTECTION_DISABLE(hrtc);
ganlikun	0:13413ea9a877	1161
ganlikun	0:13413ea9a877	1162	if(Alarm == RTC_ALARM_A)
ganlikun	0:13413ea9a877	1163	{
ganlikun	0:13413ea9a877	1164	/* AlarmA */
ganlikun	0:13413ea9a877	1165	__HAL_RTC_ALARMA_DISABLE(hrtc);
ganlikun	0:13413ea9a877	1166
ganlikun	0:13413ea9a877	1167	/* In case of interrupt mode is used, the interrupt source must disabled */
ganlikun	0:13413ea9a877	1168	__HAL_RTC_ALARM_DISABLE_IT(hrtc, RTC_IT_ALRA);
ganlikun	0:13413ea9a877	1169
ganlikun	0:13413ea9a877	1170	/* Get tick */
ganlikun	0:13413ea9a877	1171	tickstart = HAL_GetTick();
ganlikun	0:13413ea9a877	1172
ganlikun	0:13413ea9a877	1173	/* Wait till RTC ALRxWF flag is set and if Time out is reached exit */
ganlikun	0:13413ea9a877	1174	while(__HAL_RTC_ALARM_GET_FLAG(hrtc, RTC_FLAG_ALRAWF) == RESET)
ganlikun	0:13413ea9a877	1175	{
ganlikun	0:13413ea9a877	1176	if((HAL_GetTick() - tickstart ) > RTC_TIMEOUT_VALUE)
ganlikun	0:13413ea9a877	1177	{
ganlikun	0:13413ea9a877	1178	/* Enable the write protection for RTC registers */
ganlikun	0:13413ea9a877	1179	__HAL_RTC_WRITEPROTECTION_ENABLE(hrtc);
ganlikun	0:13413ea9a877	1180
ganlikun	0:13413ea9a877	1181	hrtc->State = HAL_RTC_STATE_TIMEOUT;
ganlikun	0:13413ea9a877	1182
ganlikun	0:13413ea9a877	1183	/* Process Unlocked */
ganlikun	0:13413ea9a877	1184	__HAL_UNLOCK(hrtc);
ganlikun	0:13413ea9a877	1185
ganlikun	0:13413ea9a877	1186	return HAL_TIMEOUT;
ganlikun	0:13413ea9a877	1187	}
ganlikun	0:13413ea9a877	1188	}
ganlikun	0:13413ea9a877	1189	}
ganlikun	0:13413ea9a877	1190	else
ganlikun	0:13413ea9a877	1191	{
ganlikun	0:13413ea9a877	1192	/* AlarmB */
ganlikun	0:13413ea9a877	1193	__HAL_RTC_ALARMB_DISABLE(hrtc);
ganlikun	0:13413ea9a877	1194
ganlikun	0:13413ea9a877	1195	/* In case of interrupt mode is used, the interrupt source must disabled */
ganlikun	0:13413ea9a877	1196	__HAL_RTC_ALARM_DISABLE_IT(hrtc,RTC_IT_ALRB);
ganlikun	0:13413ea9a877	1197
ganlikun	0:13413ea9a877	1198	/* Get tick */
ganlikun	0:13413ea9a877	1199	tickstart = HAL_GetTick();
ganlikun	0:13413ea9a877	1200
ganlikun	0:13413ea9a877	1201	/* Wait till RTC ALRxWF flag is set and if Time out is reached exit */
ganlikun	0:13413ea9a877	1202	while(__HAL_RTC_ALARM_GET_FLAG(hrtc, RTC_FLAG_ALRBWF) == RESET)
ganlikun	0:13413ea9a877	1203	{
ganlikun	0:13413ea9a877	1204	if((HAL_GetTick() - tickstart ) > RTC_TIMEOUT_VALUE)
ganlikun	0:13413ea9a877	1205	{
ganlikun	0:13413ea9a877	1206	/* Enable the write protection for RTC registers */
ganlikun	0:13413ea9a877	1207	__HAL_RTC_WRITEPROTECTION_ENABLE(hrtc);
ganlikun	0:13413ea9a877	1208
ganlikun	0:13413ea9a877	1209	hrtc->State = HAL_RTC_STATE_TIMEOUT;
ganlikun	0:13413ea9a877	1210
ganlikun	0:13413ea9a877	1211	/* Process Unlocked */
ganlikun	0:13413ea9a877	1212	__HAL_UNLOCK(hrtc);
ganlikun	0:13413ea9a877	1213
ganlikun	0:13413ea9a877	1214	return HAL_TIMEOUT;
ganlikun	0:13413ea9a877	1215	}
ganlikun	0:13413ea9a877	1216	}
ganlikun	0:13413ea9a877	1217	}
ganlikun	0:13413ea9a877	1218	/* Enable the write protection for RTC registers */
ganlikun	0:13413ea9a877	1219	__HAL_RTC_WRITEPROTECTION_ENABLE(hrtc);
ganlikun	0:13413ea9a877	1220
ganlikun	0:13413ea9a877	1221	hrtc->State = HAL_RTC_STATE_READY;
ganlikun	0:13413ea9a877	1222
ganlikun	0:13413ea9a877	1223	/* Process Unlocked */
ganlikun	0:13413ea9a877	1224	__HAL_UNLOCK(hrtc);
ganlikun	0:13413ea9a877	1225
ganlikun	0:13413ea9a877	1226	return HAL_OK;
ganlikun	0:13413ea9a877	1227	}
ganlikun	0:13413ea9a877	1228
ganlikun	0:13413ea9a877	1229	/**
ganlikun	0:13413ea9a877	1230	* @brief Gets the RTC Alarm value and masks.
ganlikun	0:13413ea9a877	1231	* @param hrtc: pointer to a RTC_HandleTypeDef structure that contains
ganlikun	0:13413ea9a877	1232	* the configuration information for RTC.
ganlikun	0:13413ea9a877	1233	* @param sAlarm: Pointer to Date structure
ganlikun	0:13413ea9a877	1234	* @param Alarm: Specifies the Alarm.
ganlikun	0:13413ea9a877	1235	* This parameter can be one of the following values:
ganlikun	0:13413ea9a877	1236	* @arg RTC_ALARM_A: AlarmA
ganlikun	0:13413ea9a877	1237	* @arg RTC_ALARM_B: AlarmB
ganlikun	0:13413ea9a877	1238	* @param Format: Specifies the format of the entered parameters.
ganlikun	0:13413ea9a877	1239	* This parameter can be one of the following values:
ganlikun	0:13413ea9a877	1240	* @arg RTC_FORMAT_BIN: Binary data format
ganlikun	0:13413ea9a877	1241	* @arg RTC_FORMAT_BCD: BCD data format
ganlikun	0:13413ea9a877	1242	* @retval HAL status
ganlikun	0:13413ea9a877	1243	*/
ganlikun	0:13413ea9a877	1244	HAL_StatusTypeDef HAL_RTC_GetAlarm(RTC_HandleTypeDef hrtc, RTC_AlarmTypeDef sAlarm, uint32_t Alarm, uint32_t Format)
ganlikun	0:13413ea9a877	1245	{
ganlikun	0:13413ea9a877	1246	uint32_t tmpreg = 0U, subsecondtmpreg = 0U;
ganlikun	0:13413ea9a877	1247
ganlikun	0:13413ea9a877	1248	/* Check the parameters */
ganlikun	0:13413ea9a877	1249	assert_param(IS_RTC_FORMAT(Format));
ganlikun	0:13413ea9a877	1250	assert_param(IS_RTC_ALARM(Alarm));
ganlikun	0:13413ea9a877	1251
ganlikun	0:13413ea9a877	1252	if(Alarm == RTC_ALARM_A)
ganlikun	0:13413ea9a877	1253	{
ganlikun	0:13413ea9a877	1254	/* AlarmA */
ganlikun	0:13413ea9a877	1255	sAlarm->Alarm = RTC_ALARM_A;
ganlikun	0:13413ea9a877	1256
ganlikun	0:13413ea9a877	1257	tmpreg = (uint32_t)(hrtc->Instance->ALRMAR);
ganlikun	0:13413ea9a877	1258	subsecondtmpreg = (uint32_t)((hrtc->Instance->ALRMASSR ) & RTC_ALRMASSR_SS);
ganlikun	0:13413ea9a877	1259	}
ganlikun	0:13413ea9a877	1260	else
ganlikun	0:13413ea9a877	1261	{
ganlikun	0:13413ea9a877	1262	sAlarm->Alarm = RTC_ALARM_B;
ganlikun	0:13413ea9a877	1263
ganlikun	0:13413ea9a877	1264	tmpreg = (uint32_t)(hrtc->Instance->ALRMBR);
ganlikun	0:13413ea9a877	1265	subsecondtmpreg = (uint32_t)((hrtc->Instance->ALRMBSSR) & RTC_ALRMBSSR_SS);
ganlikun	0:13413ea9a877	1266	}
ganlikun	0:13413ea9a877	1267
ganlikun	0:13413ea9a877	1268	/* Fill the structure with the read parameters */
ganlikun	0:13413ea9a877	1269	sAlarm->AlarmTime.Hours = (uint32_t)((tmpreg & (RTC_ALRMAR_HT \| RTC_ALRMAR_HU)) >> 16U);
ganlikun	0:13413ea9a877	1270	sAlarm->AlarmTime.Minutes = (uint32_t)((tmpreg & (RTC_ALRMAR_MNT \| RTC_ALRMAR_MNU)) >> 8U);
ganlikun	0:13413ea9a877	1271	sAlarm->AlarmTime.Seconds = (uint32_t)(tmpreg & (RTC_ALRMAR_ST \| RTC_ALRMAR_SU));
ganlikun	0:13413ea9a877	1272	sAlarm->AlarmTime.TimeFormat = (uint32_t)((tmpreg & RTC_ALRMAR_PM) >> 16U);
ganlikun	0:13413ea9a877	1273	sAlarm->AlarmTime.SubSeconds = (uint32_t) subsecondtmpreg;
ganlikun	0:13413ea9a877	1274	sAlarm->AlarmDateWeekDay = (uint32_t)((tmpreg & (RTC_ALRMAR_DT \| RTC_ALRMAR_DU)) >> 24U);
ganlikun	0:13413ea9a877	1275	sAlarm->AlarmDateWeekDaySel = (uint32_t)(tmpreg & RTC_ALRMAR_WDSEL);
ganlikun	0:13413ea9a877	1276	sAlarm->AlarmMask = (uint32_t)(tmpreg & RTC_ALARMMASK_ALL);
ganlikun	0:13413ea9a877	1277
ganlikun	0:13413ea9a877	1278	if(Format == RTC_FORMAT_BIN)
ganlikun	0:13413ea9a877	1279	{
ganlikun	0:13413ea9a877	1280	sAlarm->AlarmTime.Hours = RTC_Bcd2ToByte(sAlarm->AlarmTime.Hours);
ganlikun	0:13413ea9a877	1281	sAlarm->AlarmTime.Minutes = RTC_Bcd2ToByte(sAlarm->AlarmTime.Minutes);
ganlikun	0:13413ea9a877	1282	sAlarm->AlarmTime.Seconds = RTC_Bcd2ToByte(sAlarm->AlarmTime.Seconds);
ganlikun	0:13413ea9a877	1283	sAlarm->AlarmDateWeekDay = RTC_Bcd2ToByte(sAlarm->AlarmDateWeekDay);
ganlikun	0:13413ea9a877	1284	}
ganlikun	0:13413ea9a877	1285
ganlikun	0:13413ea9a877	1286	return HAL_OK;
ganlikun	0:13413ea9a877	1287	}
ganlikun	0:13413ea9a877	1288
ganlikun	0:13413ea9a877	1289	/**
ganlikun	0:13413ea9a877	1290	* @brief This function handles Alarm interrupt request.
ganlikun	0:13413ea9a877	1291	* @param hrtc: pointer to a RTC_HandleTypeDef structure that contains
ganlikun	0:13413ea9a877	1292	* the configuration information for RTC.
ganlikun	0:13413ea9a877	1293	* @retval None
ganlikun	0:13413ea9a877	1294	*/
ganlikun	0:13413ea9a877	1295	void HAL_RTC_AlarmIRQHandler(RTC_HandleTypeDef* hrtc)
ganlikun	0:13413ea9a877	1296	{
ganlikun	0:13413ea9a877	1297	if(__HAL_RTC_ALARM_GET_IT(hrtc, RTC_IT_ALRA))
ganlikun	0:13413ea9a877	1298	{
ganlikun	0:13413ea9a877	1299	/* Get the status of the Interrupt */
ganlikun	0:13413ea9a877	1300	if((uint32_t)(hrtc->Instance->CR & RTC_IT_ALRA) != (uint32_t)RESET)
ganlikun	0:13413ea9a877	1301	{
ganlikun	0:13413ea9a877	1302	/* AlarmA callback */
ganlikun	0:13413ea9a877	1303	HAL_RTC_AlarmAEventCallback(hrtc);
ganlikun	0:13413ea9a877	1304
ganlikun	0:13413ea9a877	1305	/* Clear the Alarm interrupt pending bit */
ganlikun	0:13413ea9a877	1306	__HAL_RTC_ALARM_CLEAR_FLAG(hrtc,RTC_FLAG_ALRAF);
ganlikun	0:13413ea9a877	1307	}
ganlikun	0:13413ea9a877	1308	}
ganlikun	0:13413ea9a877	1309
ganlikun	0:13413ea9a877	1310	if(__HAL_RTC_ALARM_GET_IT(hrtc, RTC_IT_ALRB))
ganlikun	0:13413ea9a877	1311	{
ganlikun	0:13413ea9a877	1312	/* Get the status of the Interrupt */
ganlikun	0:13413ea9a877	1313	if((uint32_t)(hrtc->Instance->CR & RTC_IT_ALRB) != (uint32_t)RESET)
ganlikun	0:13413ea9a877	1314	{
ganlikun	0:13413ea9a877	1315	/* AlarmB callback */
ganlikun	0:13413ea9a877	1316	HAL_RTCEx_AlarmBEventCallback(hrtc);
ganlikun	0:13413ea9a877	1317
ganlikun	0:13413ea9a877	1318	/* Clear the Alarm interrupt pending bit */
ganlikun	0:13413ea9a877	1319	__HAL_RTC_ALARM_CLEAR_FLAG(hrtc,RTC_FLAG_ALRBF);
ganlikun	0:13413ea9a877	1320	}
ganlikun	0:13413ea9a877	1321	}
ganlikun	0:13413ea9a877	1322
ganlikun	0:13413ea9a877	1323	/* Clear the EXTI's line Flag for RTC Alarm */
ganlikun	0:13413ea9a877	1324	__HAL_RTC_ALARM_EXTI_CLEAR_FLAG();
ganlikun	0:13413ea9a877	1325
ganlikun	0:13413ea9a877	1326	/* Change RTC state */
ganlikun	0:13413ea9a877	1327	hrtc->State = HAL_RTC_STATE_READY;
ganlikun	0:13413ea9a877	1328	}
ganlikun	0:13413ea9a877	1329
ganlikun	0:13413ea9a877	1330	/**
ganlikun	0:13413ea9a877	1331	* @brief Alarm A callback.
ganlikun	0:13413ea9a877	1332	* @param hrtc: pointer to a RTC_HandleTypeDef structure that contains
ganlikun	0:13413ea9a877	1333	* the configuration information for RTC.
ganlikun	0:13413ea9a877	1334	* @retval None
ganlikun	0:13413ea9a877	1335	*/
ganlikun	0:13413ea9a877	1336	__weak void HAL_RTC_AlarmAEventCallback(RTC_HandleTypeDef *hrtc)
ganlikun	0:13413ea9a877	1337	{
ganlikun	0:13413ea9a877	1338	/* Prevent unused argument(s) compilation warning */
ganlikun	0:13413ea9a877	1339	UNUSED(hrtc);
ganlikun	0:13413ea9a877	1340	/* NOTE : This function Should not be modified, when the callback is needed,
ganlikun	0:13413ea9a877	1341	the HAL_RTC_AlarmAEventCallback could be implemented in the user file
ganlikun	0:13413ea9a877	1342	*/
ganlikun	0:13413ea9a877	1343	}
ganlikun	0:13413ea9a877	1344
ganlikun	0:13413ea9a877	1345	/**
ganlikun	0:13413ea9a877	1346	* @brief This function handles AlarmA Polling request.
ganlikun	0:13413ea9a877	1347	* @param hrtc: pointer to a RTC_HandleTypeDef structure that contains
ganlikun	0:13413ea9a877	1348	* the configuration information for RTC.
ganlikun	0:13413ea9a877	1349	* @param Timeout: Timeout duration
ganlikun	0:13413ea9a877	1350	* @retval HAL status
ganlikun	0:13413ea9a877	1351	*/
ganlikun	0:13413ea9a877	1352	HAL_StatusTypeDef HAL_RTC_PollForAlarmAEvent(RTC_HandleTypeDef *hrtc, uint32_t Timeout)
ganlikun	0:13413ea9a877	1353	{
ganlikun	0:13413ea9a877	1354	uint32_t tickstart = 0U;
ganlikun	0:13413ea9a877	1355
ganlikun	0:13413ea9a877	1356	/* Get tick */
ganlikun	0:13413ea9a877	1357	tickstart = HAL_GetTick();
ganlikun	0:13413ea9a877	1358
ganlikun	0:13413ea9a877	1359	while(__HAL_RTC_ALARM_GET_FLAG(hrtc, RTC_FLAG_ALRAF) == RESET)
ganlikun	0:13413ea9a877	1360	{
ganlikun	0:13413ea9a877	1361	if(Timeout != HAL_MAX_DELAY)
ganlikun	0:13413ea9a877	1362	{
ganlikun	0:13413ea9a877	1363	if((Timeout == 0U)\|\|((HAL_GetTick() - tickstart ) > Timeout))
ganlikun	0:13413ea9a877	1364	{
ganlikun	0:13413ea9a877	1365	hrtc->State = HAL_RTC_STATE_TIMEOUT;
ganlikun	0:13413ea9a877	1366	return HAL_TIMEOUT;
ganlikun	0:13413ea9a877	1367	}
ganlikun	0:13413ea9a877	1368	}
ganlikun	0:13413ea9a877	1369	}
ganlikun	0:13413ea9a877	1370
ganlikun	0:13413ea9a877	1371	/* Clear the Alarm interrupt pending bit */
ganlikun	0:13413ea9a877	1372	__HAL_RTC_ALARM_CLEAR_FLAG(hrtc, RTC_FLAG_ALRAF);
ganlikun	0:13413ea9a877	1373
ganlikun	0:13413ea9a877	1374	/* Change RTC state */
ganlikun	0:13413ea9a877	1375	hrtc->State = HAL_RTC_STATE_READY;
ganlikun	0:13413ea9a877	1376
ganlikun	0:13413ea9a877	1377	return HAL_OK;
ganlikun	0:13413ea9a877	1378	}
ganlikun	0:13413ea9a877	1379
ganlikun	0:13413ea9a877	1380	/**
ganlikun	0:13413ea9a877	1381	* @}
ganlikun	0:13413ea9a877	1382	*/
ganlikun	0:13413ea9a877	1383
ganlikun	0:13413ea9a877	1384	/** @defgroup RTC_Exported_Functions_Group4 Peripheral Control functions
ganlikun	0:13413ea9a877	1385	* @brief Peripheral Control functions
ganlikun	0:13413ea9a877	1386	*
ganlikun	0:13413ea9a877	1387	@verbatim
ganlikun	0:13413ea9a877	1388	===============================================================================
ganlikun	0:13413ea9a877	1389	##### Peripheral Control functions #####
ganlikun	0:13413ea9a877	1390	===============================================================================
ganlikun	0:13413ea9a877	1391	[..]
ganlikun	0:13413ea9a877	1392	This subsection provides functions allowing to
ganlikun	0:13413ea9a877	1393	(+) Wait for RTC Time and Date Synchronization
ganlikun	0:13413ea9a877	1394
ganlikun	0:13413ea9a877	1395	@endverbatim
ganlikun	0:13413ea9a877	1396	* @{
ganlikun	0:13413ea9a877	1397	*/
ganlikun	0:13413ea9a877	1398
ganlikun	0:13413ea9a877	1399	/**
ganlikun	0:13413ea9a877	1400	* @brief Waits until the RTC Time and Date registers (RTC_TR and RTC_DR) are
ganlikun	0:13413ea9a877	1401	* synchronized with RTC APB clock.
ganlikun	0:13413ea9a877	1402	* @note The RTC Resynchronization mode is write protected, use the
ganlikun	0:13413ea9a877	1403	* __HAL_RTC_WRITEPROTECTION_DISABLE() before calling this function.
ganlikun	0:13413ea9a877	1404	* @note To read the calendar through the shadow registers after Calendar
ganlikun	0:13413ea9a877	1405	* initialization, calendar update or after wake-up from low power modes
ganlikun	0:13413ea9a877	1406	* the software must first clear the RSF flag.
ganlikun	0:13413ea9a877	1407	* The software must then wait until it is set again before reading
ganlikun	0:13413ea9a877	1408	* the calendar, which means that the calendar registers have been
ganlikun	0:13413ea9a877	1409	* correctly copied into the RTC_TR and RTC_DR shadow registers.
ganlikun	0:13413ea9a877	1410	* @param hrtc: pointer to a RTC_HandleTypeDef structure that contains
ganlikun	0:13413ea9a877	1411	* the configuration information for RTC.
ganlikun	0:13413ea9a877	1412	* @retval HAL status
ganlikun	0:13413ea9a877	1413	*/
ganlikun	0:13413ea9a877	1414	HAL_StatusTypeDef HAL_RTC_WaitForSynchro(RTC_HandleTypeDef* hrtc)
ganlikun	0:13413ea9a877	1415	{
ganlikun	0:13413ea9a877	1416	uint32_t tickstart = 0U;
ganlikun	0:13413ea9a877	1417
ganlikun	0:13413ea9a877	1418	/* Clear RSF flag */
ganlikun	0:13413ea9a877	1419	hrtc->Instance->ISR &= (uint32_t)RTC_RSF_MASK;
ganlikun	0:13413ea9a877	1420
ganlikun	0:13413ea9a877	1421	/* Get tick */
ganlikun	0:13413ea9a877	1422	tickstart = HAL_GetTick();
ganlikun	0:13413ea9a877	1423
ganlikun	0:13413ea9a877	1424	/* Wait the registers to be synchronised */
ganlikun	0:13413ea9a877	1425	while((hrtc->Instance->ISR & RTC_ISR_RSF) == (uint32_t)RESET)
ganlikun	0:13413ea9a877	1426	{
ganlikun	0:13413ea9a877	1427	if((HAL_GetTick() - tickstart ) > RTC_TIMEOUT_VALUE)
ganlikun	0:13413ea9a877	1428	{
ganlikun	0:13413ea9a877	1429	return HAL_TIMEOUT;
ganlikun	0:13413ea9a877	1430	}
ganlikun	0:13413ea9a877	1431	}
ganlikun	0:13413ea9a877	1432
ganlikun	0:13413ea9a877	1433	return HAL_OK;
ganlikun	0:13413ea9a877	1434	}
ganlikun	0:13413ea9a877	1435
ganlikun	0:13413ea9a877	1436	/**
ganlikun	0:13413ea9a877	1437	* @}
ganlikun	0:13413ea9a877	1438	*/
ganlikun	0:13413ea9a877	1439
ganlikun	0:13413ea9a877	1440	/** @defgroup RTC_Exported_Functions_Group5 Peripheral State functions
ganlikun	0:13413ea9a877	1441	* @brief Peripheral State functions
ganlikun	0:13413ea9a877	1442	*
ganlikun	0:13413ea9a877	1443	@verbatim
ganlikun	0:13413ea9a877	1444	===============================================================================
ganlikun	0:13413ea9a877	1445	##### Peripheral State functions #####
ganlikun	0:13413ea9a877	1446	===============================================================================
ganlikun	0:13413ea9a877	1447	[..]
ganlikun	0:13413ea9a877	1448	This subsection provides functions allowing to
ganlikun	0:13413ea9a877	1449	(+) Get RTC state
ganlikun	0:13413ea9a877	1450
ganlikun	0:13413ea9a877	1451	@endverbatim
ganlikun	0:13413ea9a877	1452	* @{
ganlikun	0:13413ea9a877	1453	*/
ganlikun	0:13413ea9a877	1454	/**
ganlikun	0:13413ea9a877	1455	* @brief Returns the RTC state.
ganlikun	0:13413ea9a877	1456	* @param hrtc: pointer to a RTC_HandleTypeDef structure that contains
ganlikun	0:13413ea9a877	1457	* the configuration information for RTC.
ganlikun	0:13413ea9a877	1458	* @retval HAL state
ganlikun	0:13413ea9a877	1459	*/
ganlikun	0:13413ea9a877	1460	HAL_RTCStateTypeDef HAL_RTC_GetState(RTC_HandleTypeDef* hrtc)
ganlikun	0:13413ea9a877	1461	{
ganlikun	0:13413ea9a877	1462	return hrtc->State;
ganlikun	0:13413ea9a877	1463	}
ganlikun	0:13413ea9a877	1464
ganlikun	0:13413ea9a877	1465	/**
ganlikun	0:13413ea9a877	1466	* @}
ganlikun	0:13413ea9a877	1467	*/
ganlikun	0:13413ea9a877	1468
ganlikun	0:13413ea9a877	1469	/**
ganlikun	0:13413ea9a877	1470	* @brief Enters the RTC Initialization mode.
ganlikun	0:13413ea9a877	1471	* @note The RTC Initialization mode is write protected, use the
ganlikun	0:13413ea9a877	1472	* __HAL_RTC_WRITEPROTECTION_DISABLE() before calling this function.
ganlikun	0:13413ea9a877	1473	* @param hrtc: pointer to a RTC_HandleTypeDef structure that contains
ganlikun	0:13413ea9a877	1474	* the configuration information for RTC.
ganlikun	0:13413ea9a877	1475	* @retval HAL status
ganlikun	0:13413ea9a877	1476	*/
ganlikun	0:13413ea9a877	1477	HAL_StatusTypeDef RTC_EnterInitMode(RTC_HandleTypeDef* hrtc)
ganlikun	0:13413ea9a877	1478	{
ganlikun	0:13413ea9a877	1479	uint32_t tickstart = 0U;
ganlikun	0:13413ea9a877	1480
ganlikun	0:13413ea9a877	1481	/* Check if the Initialization mode is set */
ganlikun	0:13413ea9a877	1482	if((hrtc->Instance->ISR & RTC_ISR_INITF) == (uint32_t)RESET)
ganlikun	0:13413ea9a877	1483	{
ganlikun	0:13413ea9a877	1484	/* Set the Initialization mode */
ganlikun	0:13413ea9a877	1485	hrtc->Instance->ISR = (uint32_t)RTC_INIT_MASK;
ganlikun	0:13413ea9a877	1486
ganlikun	0:13413ea9a877	1487	/* Get tick */
ganlikun	0:13413ea9a877	1488	tickstart = HAL_GetTick();
ganlikun	0:13413ea9a877	1489
ganlikun	0:13413ea9a877	1490	/* Wait till RTC is in INIT state and if Time out is reached exit */
ganlikun	0:13413ea9a877	1491	while((hrtc->Instance->ISR & RTC_ISR_INITF) == (uint32_t)RESET)
ganlikun	0:13413ea9a877	1492	{
ganlikun	0:13413ea9a877	1493	if((HAL_GetTick() - tickstart ) > RTC_TIMEOUT_VALUE)
ganlikun	0:13413ea9a877	1494	{
ganlikun	0:13413ea9a877	1495	return HAL_TIMEOUT;
ganlikun	0:13413ea9a877	1496	}
ganlikun	0:13413ea9a877	1497	}
ganlikun	0:13413ea9a877	1498	}
ganlikun	0:13413ea9a877	1499
ganlikun	0:13413ea9a877	1500	return HAL_OK;
ganlikun	0:13413ea9a877	1501	}
ganlikun	0:13413ea9a877	1502
ganlikun	0:13413ea9a877	1503
ganlikun	0:13413ea9a877	1504	/**
ganlikun	0:13413ea9a877	1505	* @brief Converts a 2 digit decimal to BCD format.
ganlikun	0:13413ea9a877	1506	* @param Value: Byte to be converted
ganlikun	0:13413ea9a877	1507	* @retval Converted byte
ganlikun	0:13413ea9a877	1508	*/
ganlikun	0:13413ea9a877	1509	uint8_t RTC_ByteToBcd2(uint8_t Value)
ganlikun	0:13413ea9a877	1510	{
ganlikun	0:13413ea9a877	1511	uint32_t bcdhigh = 0U;
ganlikun	0:13413ea9a877	1512
ganlikun	0:13413ea9a877	1513	while(Value >= 10U)
ganlikun	0:13413ea9a877	1514	{
ganlikun	0:13413ea9a877	1515	bcdhigh++;
ganlikun	0:13413ea9a877	1516	Value -= 10U;
ganlikun	0:13413ea9a877	1517	}
ganlikun	0:13413ea9a877	1518
ganlikun	0:13413ea9a877	1519	return ((uint8_t)(bcdhigh << 4U) \| Value);
ganlikun	0:13413ea9a877	1520	}
ganlikun	0:13413ea9a877	1521
ganlikun	0:13413ea9a877	1522	/**
ganlikun	0:13413ea9a877	1523	* @brief Converts from 2 digit BCD to Binary.
ganlikun	0:13413ea9a877	1524	* @param Value: BCD value to be converted
ganlikun	0:13413ea9a877	1525	* @retval Converted word
ganlikun	0:13413ea9a877	1526	*/
ganlikun	0:13413ea9a877	1527	uint8_t RTC_Bcd2ToByte(uint8_t Value)
ganlikun	0:13413ea9a877	1528	{
ganlikun	0:13413ea9a877	1529	uint32_t tmp = 0U;
ganlikun	0:13413ea9a877	1530	tmp = ((uint8_t)(Value & (uint8_t)0xF0) >> (uint8_t)0x4) * 10;
ganlikun	0:13413ea9a877	1531	return (tmp + (Value & (uint8_t)0x0F));
ganlikun	0:13413ea9a877	1532	}
ganlikun	0:13413ea9a877	1533
ganlikun	0:13413ea9a877	1534	/**
ganlikun	0:13413ea9a877	1535	* @}
ganlikun	0:13413ea9a877	1536	*/
ganlikun	0:13413ea9a877	1537
ganlikun	0:13413ea9a877	1538	#endif /* HAL_RTC_MODULE_ENABLED */
ganlikun	0:13413ea9a877	1539	/**
ganlikun	0:13413ea9a877	1540	* @}
ganlikun	0:13413ea9a877	1541	*/
ganlikun	0:13413ea9a877	1542
ganlikun	0:13413ea9a877	1543	/**
ganlikun	0:13413ea9a877	1544	* @}
ganlikun	0:13413ea9a877	1545	*/
ganlikun	0:13413ea9a877	1546
ganlikun	0:13413ea9a877	1547	/********************** (C) COPYRIGHT STMicroelectronics *END OF FILE**/
ganlikun	0:13413ea9a877	1548

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Type:	Library
Created:	05 Jul 2022
Imports:	1
Forks:	0
Commits:	1
Dependents:	0
Dependencies:	0
Followers:	1

targets/TARGET_STM/TARGET_STM32F4/device/stm32f4xx_hal_rtc.c@0:13413ea9a877, 2022-06-12 (annotated)

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