1 /**
2 ******************************************************************************
3 * @file stm32h5xx_ll_rtc.c
4 * @author MCD Application Team
5 * @brief RTC LL module driver.
6 ******************************************************************************
7 * @attention
8 *
9 * Copyright (c) 2022 STMicroelectronics.
10 * All rights reserved.
11 *
12 * This software is licensed under terms that can be found in the LICENSE file
13 * in the root directory of this software component.
14 * If no LICENSE file comes with this software, it is provided AS-IS.
15 *
16 ******************************************************************************
17 */
18 #if defined(USE_FULL_LL_DRIVER)
19
20 /* Includes ------------------------------------------------------------------*/
21 #include "stm32h5xx_ll_rtc.h"
22 #include "stm32h5xx_ll_cortex.h"
23 #ifdef USE_FULL_ASSERT
24 #include "stm32_assert.h"
25 #else
26 #define assert_param(expr) ((void)0U)
27 #endif /* USE_FULL_ASSERT */
28
29 /** @addtogroup STM32H5xx_LL_Driver
30 * @{
31 */
32
33 #if defined(RTC)
34
35 /** @addtogroup RTC_LL
36 * @{
37 */
38
39 /* Private types -------------------------------------------------------------*/
40 /* Private variables ---------------------------------------------------------*/
41 /* Private constants ---------------------------------------------------------*/
42 /** @addtogroup RTC_LL_Private_Constants
43 * @{
44 */
45 /* Default values used for prescaler */
46 #define RTC_ASYNCH_PRESC_DEFAULT ((uint32_t) 0x0000007FU)
47 #define RTC_SYNCH_PRESC_DEFAULT ((uint32_t) 0x000000FFU)
48
49 /* Values used for timeout */
50 #define RTC_INITMODE_TIMEOUT ((uint32_t) 1000U) /* 1s when tick set to 1ms */
51 #define RTC_SYNCHRO_TIMEOUT ((uint32_t) 1000U) /* 1s when tick set to 1ms */
52 /**
53 * @}
54 */
55
56 /* Private macros ------------------------------------------------------------*/
57 /** @addtogroup RTC_LL_Private_Macros
58 * @{
59 */
60
61 #define IS_LL_RTC_HOURFORMAT(__VALUE__) (((__VALUE__) == LL_RTC_HOURFORMAT_24HOUR) \
62 || ((__VALUE__) == LL_RTC_HOURFORMAT_AMPM))
63
64 #define IS_LL_RTC_ASYNCH_PREDIV(__VALUE__) ((__VALUE__) <= 0x7FU)
65
66 #define IS_LL_RTC_SYNCH_PREDIV(__VALUE__) ((__VALUE__) <= 0x7FFFU)
67
68 #define IS_LL_RTC_FORMAT(__VALUE__) (((__VALUE__) == LL_RTC_FORMAT_BIN) \
69 || ((__VALUE__) == LL_RTC_FORMAT_BCD))
70
71 #define IS_LL_RTC_TIME_FORMAT(__VALUE__) (((__VALUE__) == LL_RTC_TIME_FORMAT_AM_OR_24) \
72 || ((__VALUE__) == LL_RTC_TIME_FORMAT_PM))
73
74 #define IS_LL_RTC_HOUR12(__HOUR__) (((__HOUR__) > 0U) && ((__HOUR__) <= 12U))
75 #define IS_LL_RTC_HOUR24(__HOUR__) ((__HOUR__) <= 23U)
76 #define IS_LL_RTC_MINUTES(__MINUTES__) ((__MINUTES__) <= 59U)
77 #define IS_LL_RTC_SECONDS(__SECONDS__) ((__SECONDS__) <= 59U)
78
79 #define IS_LL_RTC_WEEKDAY(__VALUE__) (((__VALUE__) == LL_RTC_WEEKDAY_MONDAY) \
80 || ((__VALUE__) == LL_RTC_WEEKDAY_TUESDAY) \
81 || ((__VALUE__) == LL_RTC_WEEKDAY_WEDNESDAY) \
82 || ((__VALUE__) == LL_RTC_WEEKDAY_THURSDAY) \
83 || ((__VALUE__) == LL_RTC_WEEKDAY_FRIDAY) \
84 || ((__VALUE__) == LL_RTC_WEEKDAY_SATURDAY) \
85 || ((__VALUE__) == LL_RTC_WEEKDAY_SUNDAY))
86
87 #define IS_LL_RTC_DAY(__DAY__) (((__DAY__) >= (uint32_t)1U) && ((__DAY__) <= (uint32_t)31U))
88
89 #define IS_LL_RTC_MONTH(__MONTH__) (((__MONTH__) >= 1U) && ((__MONTH__) <= 12U))
90
91 #define IS_LL_RTC_YEAR(__YEAR__) ((__YEAR__) <= 99U)
92
93 #define IS_LL_RTC_ALMA_MASK(__VALUE__) (((__VALUE__) == LL_RTC_ALMA_MASK_NONE) \
94 || ((__VALUE__) == LL_RTC_ALMA_MASK_DATEWEEKDAY) \
95 || ((__VALUE__) == LL_RTC_ALMA_MASK_HOURS) \
96 || ((__VALUE__) == LL_RTC_ALMA_MASK_MINUTES) \
97 || ((__VALUE__) == LL_RTC_ALMA_MASK_SECONDS) \
98 || ((__VALUE__) == LL_RTC_ALMA_MASK_ALL))
99
100 #define IS_LL_RTC_ALMB_MASK(__VALUE__) (((__VALUE__) == LL_RTC_ALMB_MASK_NONE) \
101 || ((__VALUE__) == LL_RTC_ALMB_MASK_DATEWEEKDAY) \
102 || ((__VALUE__) == LL_RTC_ALMB_MASK_HOURS) \
103 || ((__VALUE__) == LL_RTC_ALMB_MASK_MINUTES) \
104 || ((__VALUE__) == LL_RTC_ALMB_MASK_SECONDS) \
105 || ((__VALUE__) == LL_RTC_ALMB_MASK_ALL))
106
107
108 #define IS_LL_RTC_ALMA_DATE_WEEKDAY_SEL(__SEL__) (((__SEL__) == LL_RTC_ALMA_DATEWEEKDAYSEL_DATE) || \
109 ((__SEL__) == LL_RTC_ALMA_DATEWEEKDAYSEL_WEEKDAY))
110
111 #define IS_LL_RTC_ALMB_DATE_WEEKDAY_SEL(__SEL__) (((__SEL__) == LL_RTC_ALMB_DATEWEEKDAYSEL_DATE) || \
112 ((__SEL__) == LL_RTC_ALMB_DATEWEEKDAYSEL_WEEKDAY))
113
114
115 /**
116 * @}
117 */
118 /* Private function prototypes -----------------------------------------------*/
119 /* Exported functions --------------------------------------------------------*/
120 /** @addtogroup RTC_LL_Exported_Functions
121 * @{
122 */
123
124 /** @addtogroup RTC_LL_EF_Init
125 * @{
126 */
127
128 /**
129 * @brief De-Initializes the RTC registers to their default reset values.
130 * @note This function does not reset the RTC Clock source and RTC Backup Data
131 * registers.
132 * @param RTCx RTC Instance
133 * @retval An ErrorStatus enumeration value:
134 * - SUCCESS: RTC registers are de-initialized
135 * - ERROR: RTC registers are not de-initialized
136 */
LL_RTC_DeInit(RTC_TypeDef * RTCx)137 ErrorStatus LL_RTC_DeInit(RTC_TypeDef *RTCx)
138 {
139 ErrorStatus status = ERROR;
140
141 /* Check the parameter */
142 assert_param(IS_RTC_ALL_INSTANCE(RTCx));
143
144 /* Disable the write protection for RTC registers */
145 LL_RTC_DisableWriteProtection(RTCx);
146
147 /* Set Initialization mode */
148 if (LL_RTC_EnterInitMode(RTCx) != ERROR)
149 {
150 WRITE_REG(RTCx->TR, 0x00000000U);
151 WRITE_REG(RTCx->DR, (RTC_DR_WDU_0 | RTC_DR_MU_0 | RTC_DR_DU_0));
152 WRITE_REG(RTCx->CR, 0x00000000U);
153 WRITE_REG(RTCx->WUTR, RTC_WUTR_WUT);
154 WRITE_REG(RTCx->PRER, (RTC_PRER_PREDIV_A | RTC_SYNCH_PRESC_DEFAULT));
155 WRITE_REG(RTCx->ALRMAR, 0x00000000U);
156 WRITE_REG(RTCx->ALRMBR, 0x00000000U);
157 WRITE_REG(RTCx->SHIFTR, 0x00000000U);
158 WRITE_REG(RTCx->CALR, 0x00000000U);
159 WRITE_REG(RTCx->ALRMASSR, 0x00000000U);
160 WRITE_REG(RTCx->ALRMBSSR, 0x00000000U);
161 WRITE_REG(RTCx->PRIVCFGR, 0x00000000U);
162 #if defined (RTC_SECCFGR_SEC)
163 WRITE_REG(RTCx->SECCFGR, 0x00000000U);
164 #endif /* RTC_SECCFGR_SEC */
165
166 /* Clear some bits of RTC_ICSR and exit Initialization mode */
167 CLEAR_BIT(RTCx->ICSR, RTC_ICSR_BCDU_Msk | RTC_ICSR_BIN_Msk | RTC_ICSR_INIT);
168
169 /* Wait till the RTC RSF flag is set */
170 status = LL_RTC_WaitForSynchro(RTCx);
171 }
172
173 /* Enable the write protection for RTC registers */
174 LL_RTC_EnableWriteProtection(RTCx);
175
176 /* DeInitialization of the TAMP registers */
177 WRITE_REG(TAMP->CR1, 0x00000000U);
178 WRITE_REG(TAMP->CR2, 0x00000000U);
179 WRITE_REG(TAMP->CR3, 0x00000000U);
180 #if defined (TAMP_SECCFGR_TAMPSEC)
181 WRITE_REG(TAMP->SECCFGR, 0x00000000U);
182 #endif /* TAMP_SECCFGR_TAMPSEC */
183 WRITE_REG(TAMP->PRIVCFGR, 0x00000000U);
184 WRITE_REG(TAMP->FLTCR, 0x00000000U);
185 WRITE_REG(TAMP->ATCR1, 0x00070000U);
186 WRITE_REG(TAMP->ATCR2, 0x00000000U);
187 WRITE_REG(TAMP->IER, 0x00000000U);
188 WRITE_REG(TAMP->SCR, 0xFFFFFFFFU);
189
190 return status;
191 }
192
193 /**
194 * @brief Initializes the RTC registers according to the specified parameters
195 * in RTC_InitStruct.
196 * @param RTCx RTC Instance
197 * @param RTC_InitStruct pointer to a @ref LL_RTC_InitTypeDef structure that contains
198 * the configuration information for the RTC peripheral.
199 * @note The RTC Prescaler register is write protected and can be written in
200 * initialization mode only.
201 * @retval An ErrorStatus enumeration value:
202 * - SUCCESS: RTC registers are initialized
203 * - ERROR: RTC registers are not initialized
204 */
LL_RTC_Init(RTC_TypeDef * RTCx,LL_RTC_InitTypeDef * RTC_InitStruct)205 ErrorStatus LL_RTC_Init(RTC_TypeDef *RTCx, LL_RTC_InitTypeDef *RTC_InitStruct)
206 {
207 ErrorStatus status = ERROR;
208
209 /* Check the parameters */
210 assert_param(IS_RTC_ALL_INSTANCE(RTCx));
211 assert_param(IS_LL_RTC_HOURFORMAT(RTC_InitStruct->HourFormat));
212 assert_param(IS_LL_RTC_ASYNCH_PREDIV(RTC_InitStruct->AsynchPrescaler));
213 assert_param(IS_LL_RTC_SYNCH_PREDIV(RTC_InitStruct->SynchPrescaler));
214
215 /* Disable the write protection for RTC registers */
216 LL_RTC_DisableWriteProtection(RTCx);
217
218 /* Set Initialization mode */
219 if (LL_RTC_EnterInitMode(RTCx) != ERROR)
220 {
221 /* Set Hour Format */
222 LL_RTC_SetHourFormat(RTCx, RTC_InitStruct->HourFormat);
223
224 /* Configure Synchronous and Asynchronous prescaler factor */
225 LL_RTC_SetSynchPrescaler(RTCx, RTC_InitStruct->SynchPrescaler);
226 LL_RTC_SetAsynchPrescaler(RTCx, RTC_InitStruct->AsynchPrescaler);
227
228 /* Exit Initialization mode */
229 LL_RTC_DisableInitMode(RTCx);
230
231 status = SUCCESS;
232 }
233 /* Enable the write protection for RTC registers */
234 LL_RTC_EnableWriteProtection(RTCx);
235
236 return status;
237 }
238
239 /**
240 * @brief Set each @ref LL_RTC_InitTypeDef field to default value.
241 * @param RTC_InitStruct pointer to a @ref LL_RTC_InitTypeDef structure which will be initialized.
242 * @retval None
243 */
LL_RTC_StructInit(LL_RTC_InitTypeDef * RTC_InitStruct)244 void LL_RTC_StructInit(LL_RTC_InitTypeDef *RTC_InitStruct)
245 {
246 /* Set RTC_InitStruct fields to default values */
247 RTC_InitStruct->HourFormat = LL_RTC_HOURFORMAT_24HOUR;
248 RTC_InitStruct->AsynchPrescaler = RTC_ASYNCH_PRESC_DEFAULT;
249 RTC_InitStruct->SynchPrescaler = RTC_SYNCH_PRESC_DEFAULT;
250 }
251
252 /**
253 * @brief Set the RTC current time.
254 * @param RTCx RTC Instance
255 * @param RTC_Format This parameter can be one of the following values:
256 * @arg @ref LL_RTC_FORMAT_BIN
257 * @arg @ref LL_RTC_FORMAT_BCD
258 * @param RTC_TimeStruct pointer to a RTC_TimeTypeDef structure that contains
259 * the time configuration information for the RTC.
260 * @retval An ErrorStatus enumeration value:
261 * - SUCCESS: RTC Time register is configured
262 * - ERROR: RTC Time register is not configured
263 */
LL_RTC_TIME_Init(RTC_TypeDef * RTCx,uint32_t RTC_Format,LL_RTC_TimeTypeDef * RTC_TimeStruct)264 ErrorStatus LL_RTC_TIME_Init(RTC_TypeDef *RTCx, uint32_t RTC_Format, LL_RTC_TimeTypeDef *RTC_TimeStruct)
265 {
266 ErrorStatus status = ERROR;
267
268 /* Check the parameters */
269 assert_param(IS_RTC_ALL_INSTANCE(RTCx));
270 assert_param(IS_LL_RTC_FORMAT(RTC_Format));
271
272 if (RTC_Format == LL_RTC_FORMAT_BIN)
273 {
274 if (LL_RTC_GetHourFormat(RTCx) != LL_RTC_HOURFORMAT_24HOUR)
275 {
276 assert_param(IS_LL_RTC_HOUR12(RTC_TimeStruct->Hours));
277 assert_param(IS_LL_RTC_TIME_FORMAT(RTC_TimeStruct->TimeFormat));
278 }
279 else
280 {
281 RTC_TimeStruct->TimeFormat = 0x00U;
282 assert_param(IS_LL_RTC_HOUR24(RTC_TimeStruct->Hours));
283 }
284 assert_param(IS_LL_RTC_MINUTES(RTC_TimeStruct->Minutes));
285 assert_param(IS_LL_RTC_SECONDS(RTC_TimeStruct->Seconds));
286 }
287 else
288 {
289 if (LL_RTC_GetHourFormat(RTCx) != LL_RTC_HOURFORMAT_24HOUR)
290 {
291 assert_param(IS_LL_RTC_HOUR12(__LL_RTC_CONVERT_BCD2BIN(RTC_TimeStruct->Hours)));
292 assert_param(IS_LL_RTC_TIME_FORMAT(RTC_TimeStruct->TimeFormat));
293 }
294 else
295 {
296 RTC_TimeStruct->TimeFormat = 0x00U;
297 assert_param(IS_LL_RTC_HOUR24(__LL_RTC_CONVERT_BCD2BIN(RTC_TimeStruct->Hours)));
298 }
299 assert_param(IS_LL_RTC_MINUTES(__LL_RTC_CONVERT_BCD2BIN(RTC_TimeStruct->Minutes)));
300 assert_param(IS_LL_RTC_SECONDS(__LL_RTC_CONVERT_BCD2BIN(RTC_TimeStruct->Seconds)));
301 }
302
303 /* Disable the write protection for RTC registers */
304 LL_RTC_DisableWriteProtection(RTCx);
305
306 /* Set Initialization mode */
307 if (LL_RTC_EnterInitMode(RTCx) != ERROR)
308 {
309 /* Check the input parameters format */
310 if (RTC_Format != LL_RTC_FORMAT_BIN)
311 {
312 LL_RTC_TIME_Config(RTCx, RTC_TimeStruct->TimeFormat, RTC_TimeStruct->Hours,
313 RTC_TimeStruct->Minutes, RTC_TimeStruct->Seconds);
314 }
315 else
316 {
317 LL_RTC_TIME_Config(RTCx, RTC_TimeStruct->TimeFormat, __LL_RTC_CONVERT_BIN2BCD(RTC_TimeStruct->Hours),
318 __LL_RTC_CONVERT_BIN2BCD(RTC_TimeStruct->Minutes),
319 __LL_RTC_CONVERT_BIN2BCD(RTC_TimeStruct->Seconds));
320 }
321
322 /* Exit Initialization mode */
323 LL_RTC_DisableInitMode(RTCx);
324
325 /* If RTC_CR_BYPSHAD bit = 0, wait for synchro else this check is not needed */
326 if (LL_RTC_IsShadowRegBypassEnabled(RTCx) == 0U)
327 {
328 status = LL_RTC_WaitForSynchro(RTCx);
329 }
330 else
331 {
332 status = SUCCESS;
333 }
334 }
335 /* Enable the write protection for RTC registers */
336 LL_RTC_EnableWriteProtection(RTCx);
337
338 return status;
339 }
340
341 /**
342 * @brief Set each @ref LL_RTC_TimeTypeDef field to default value (Time = 00h:00min:00sec).
343 * @param RTC_TimeStruct pointer to a @ref LL_RTC_TimeTypeDef structure which will be initialized.
344 * @retval None
345 */
LL_RTC_TIME_StructInit(LL_RTC_TimeTypeDef * RTC_TimeStruct)346 void LL_RTC_TIME_StructInit(LL_RTC_TimeTypeDef *RTC_TimeStruct)
347 {
348 /* Time = 00h:00min:00sec */
349 RTC_TimeStruct->TimeFormat = LL_RTC_TIME_FORMAT_AM_OR_24;
350 RTC_TimeStruct->Hours = 0U;
351 RTC_TimeStruct->Minutes = 0U;
352 RTC_TimeStruct->Seconds = 0U;
353 }
354
355 /**
356 * @brief Set the RTC current date.
357 * @param RTCx RTC Instance
358 * @param RTC_Format This parameter can be one of the following values:
359 * @arg @ref LL_RTC_FORMAT_BIN
360 * @arg @ref LL_RTC_FORMAT_BCD
361 * @param RTC_DateStruct: pointer to a RTC_DateTypeDef structure that contains
362 * the date configuration information for the RTC.
363 * @retval An ErrorStatus enumeration value:
364 * - SUCCESS: RTC Day register is configured
365 * - ERROR: RTC Day register is not configured
366 */
LL_RTC_DATE_Init(RTC_TypeDef * RTCx,uint32_t RTC_Format,LL_RTC_DateTypeDef * RTC_DateStruct)367 ErrorStatus LL_RTC_DATE_Init(RTC_TypeDef *RTCx, uint32_t RTC_Format, LL_RTC_DateTypeDef *RTC_DateStruct)
368 {
369 ErrorStatus status = ERROR;
370
371 /* Check the parameters */
372 assert_param(IS_RTC_ALL_INSTANCE(RTCx));
373 assert_param(IS_LL_RTC_FORMAT(RTC_Format));
374
375 if ((RTC_Format == LL_RTC_FORMAT_BIN) && ((RTC_DateStruct->Month & 0x10U) == 0x10U))
376 {
377 RTC_DateStruct->Month = (uint8_t)((uint32_t) RTC_DateStruct->Month & (uint32_t)~(0x10U)) + 0x0AU;
378 }
379 if (RTC_Format == LL_RTC_FORMAT_BIN)
380 {
381 assert_param(IS_LL_RTC_YEAR(RTC_DateStruct->Year));
382 assert_param(IS_LL_RTC_MONTH(RTC_DateStruct->Month));
383 assert_param(IS_LL_RTC_DAY(RTC_DateStruct->Day));
384 }
385 else
386 {
387 assert_param(IS_LL_RTC_YEAR(__LL_RTC_CONVERT_BCD2BIN(RTC_DateStruct->Year)));
388 assert_param(IS_LL_RTC_MONTH(__LL_RTC_CONVERT_BCD2BIN(RTC_DateStruct->Month)));
389 assert_param(IS_LL_RTC_DAY(__LL_RTC_CONVERT_BCD2BIN(RTC_DateStruct->Day)));
390 }
391 assert_param(IS_LL_RTC_WEEKDAY(RTC_DateStruct->WeekDay));
392
393 /* Disable the write protection for RTC registers */
394 LL_RTC_DisableWriteProtection(RTCx);
395
396 /* Set Initialization mode */
397 if (LL_RTC_EnterInitMode(RTCx) != ERROR)
398 {
399 /* Check the input parameters format */
400 if (RTC_Format != LL_RTC_FORMAT_BIN)
401 {
402 LL_RTC_DATE_Config(RTCx, RTC_DateStruct->WeekDay, RTC_DateStruct->Day, RTC_DateStruct->Month,
403 RTC_DateStruct->Year);
404 }
405 else
406 {
407 LL_RTC_DATE_Config(RTCx, RTC_DateStruct->WeekDay, __LL_RTC_CONVERT_BIN2BCD(RTC_DateStruct->Day),
408 __LL_RTC_CONVERT_BIN2BCD(RTC_DateStruct->Month),
409 __LL_RTC_CONVERT_BIN2BCD(RTC_DateStruct->Year));
410 }
411
412 /* Exit Initialization mode */
413 LL_RTC_DisableInitMode(RTCx);
414
415 /* If RTC_CR_BYPSHAD bit = 0, wait for synchro else this check is not needed */
416 if (LL_RTC_IsShadowRegBypassEnabled(RTCx) == 0U)
417 {
418 status = LL_RTC_WaitForSynchro(RTCx);
419 }
420 else
421 {
422 status = SUCCESS;
423 }
424 }
425 /* Enable the write protection for RTC registers */
426 LL_RTC_EnableWriteProtection(RTCx);
427
428 return status;
429 }
430
431 /**
432 * @brief Set each @ref LL_RTC_DateTypeDef field to default value (date = Monday, January 01 xx00)
433 * @param RTC_DateStruct pointer to a @ref LL_RTC_DateTypeDef structure which will be initialized.
434 * @retval None
435 */
LL_RTC_DATE_StructInit(LL_RTC_DateTypeDef * RTC_DateStruct)436 void LL_RTC_DATE_StructInit(LL_RTC_DateTypeDef *RTC_DateStruct)
437 {
438 /* Monday, January 01 xx00 */
439 RTC_DateStruct->WeekDay = LL_RTC_WEEKDAY_MONDAY;
440 RTC_DateStruct->Day = 1U;
441 RTC_DateStruct->Month = LL_RTC_MONTH_JANUARY;
442 RTC_DateStruct->Year = 0U;
443 }
444
445 /**
446 * @brief Set the RTC Alarm A.
447 * @note The Alarm register can only be written when the corresponding Alarm
448 * is disabled (Use @ref LL_RTC_ALMA_Disable function).
449 * @param RTCx RTC Instance
450 * @param RTC_Format This parameter can be one of the following values:
451 * @arg @ref LL_RTC_FORMAT_BIN
452 * @arg @ref LL_RTC_FORMAT_BCD
453 * @param RTC_AlarmStruct pointer to a @ref LL_RTC_AlarmTypeDef structure that
454 * contains the alarm configuration parameters.
455 * @retval An ErrorStatus enumeration value:
456 * - SUCCESS: ALARMA registers are configured
457 * - ERROR: ALARMA registers are not configured
458 */
LL_RTC_ALMA_Init(RTC_TypeDef * RTCx,uint32_t RTC_Format,LL_RTC_AlarmTypeDef * RTC_AlarmStruct)459 ErrorStatus LL_RTC_ALMA_Init(RTC_TypeDef *RTCx, uint32_t RTC_Format, LL_RTC_AlarmTypeDef *RTC_AlarmStruct)
460 {
461 /* Check the parameters */
462 assert_param(IS_RTC_ALL_INSTANCE(RTCx));
463 assert_param(IS_LL_RTC_FORMAT(RTC_Format));
464 assert_param(IS_LL_RTC_ALMA_MASK(RTC_AlarmStruct->AlarmMask));
465 assert_param(IS_LL_RTC_ALMA_DATE_WEEKDAY_SEL(RTC_AlarmStruct->AlarmDateWeekDaySel));
466
467 if (RTC_Format == LL_RTC_FORMAT_BIN)
468 {
469 if (LL_RTC_GetHourFormat(RTCx) != LL_RTC_HOURFORMAT_24HOUR)
470 {
471 assert_param(IS_LL_RTC_HOUR12(RTC_AlarmStruct->AlarmTime.Hours));
472 assert_param(IS_LL_RTC_TIME_FORMAT(RTC_AlarmStruct->AlarmTime.TimeFormat));
473 }
474 else
475 {
476 RTC_AlarmStruct->AlarmTime.TimeFormat = 0x00U;
477 assert_param(IS_LL_RTC_HOUR24(RTC_AlarmStruct->AlarmTime.Hours));
478 }
479 assert_param(IS_LL_RTC_MINUTES(RTC_AlarmStruct->AlarmTime.Minutes));
480 assert_param(IS_LL_RTC_SECONDS(RTC_AlarmStruct->AlarmTime.Seconds));
481
482 if (RTC_AlarmStruct->AlarmDateWeekDaySel == LL_RTC_ALMA_DATEWEEKDAYSEL_DATE)
483 {
484 assert_param(IS_LL_RTC_DAY(RTC_AlarmStruct->AlarmDateWeekDay));
485 }
486 else
487 {
488 assert_param(IS_LL_RTC_WEEKDAY(RTC_AlarmStruct->AlarmDateWeekDay));
489 }
490 }
491 else
492 {
493 if (LL_RTC_GetHourFormat(RTCx) != LL_RTC_HOURFORMAT_24HOUR)
494 {
495 assert_param(IS_LL_RTC_HOUR12(__LL_RTC_CONVERT_BCD2BIN(RTC_AlarmStruct->AlarmTime.Hours)));
496 assert_param(IS_LL_RTC_TIME_FORMAT(RTC_AlarmStruct->AlarmTime.TimeFormat));
497 }
498 else
499 {
500 RTC_AlarmStruct->AlarmTime.TimeFormat = 0x00U;
501 assert_param(IS_LL_RTC_HOUR24(__LL_RTC_CONVERT_BCD2BIN(RTC_AlarmStruct->AlarmTime.Hours)));
502 }
503
504 assert_param(IS_LL_RTC_MINUTES(__LL_RTC_CONVERT_BCD2BIN(RTC_AlarmStruct->AlarmTime.Minutes)));
505 assert_param(IS_LL_RTC_SECONDS(__LL_RTC_CONVERT_BCD2BIN(RTC_AlarmStruct->AlarmTime.Seconds)));
506
507 if (RTC_AlarmStruct->AlarmDateWeekDaySel == LL_RTC_ALMA_DATEWEEKDAYSEL_DATE)
508 {
509 assert_param(IS_LL_RTC_DAY(__LL_RTC_CONVERT_BCD2BIN(RTC_AlarmStruct->AlarmDateWeekDay)));
510 }
511 else
512 {
513 assert_param(IS_LL_RTC_WEEKDAY(__LL_RTC_CONVERT_BCD2BIN(RTC_AlarmStruct->AlarmDateWeekDay)));
514 }
515 }
516
517 /* Disable the write protection for RTC registers */
518 LL_RTC_DisableWriteProtection(RTCx);
519
520 /* Select weekday selection */
521 if (RTC_AlarmStruct->AlarmDateWeekDaySel == LL_RTC_ALMA_DATEWEEKDAYSEL_DATE)
522 {
523 /* Set the date for ALARM */
524 LL_RTC_ALMA_DisableWeekday(RTCx);
525 if (RTC_Format != LL_RTC_FORMAT_BIN)
526 {
527 LL_RTC_ALMA_SetDay(RTCx, RTC_AlarmStruct->AlarmDateWeekDay);
528 }
529 else
530 {
531 LL_RTC_ALMA_SetDay(RTCx, __LL_RTC_CONVERT_BIN2BCD(RTC_AlarmStruct->AlarmDateWeekDay));
532 }
533 }
534 else
535 {
536 /* Set the week day for ALARM */
537 LL_RTC_ALMA_EnableWeekday(RTCx);
538 LL_RTC_ALMA_SetWeekDay(RTCx, RTC_AlarmStruct->AlarmDateWeekDay);
539 }
540
541 /* Configure the Alarm register */
542 if (RTC_Format != LL_RTC_FORMAT_BIN)
543 {
544 LL_RTC_ALMA_ConfigTime(RTCx, RTC_AlarmStruct->AlarmTime.TimeFormat, RTC_AlarmStruct->AlarmTime.Hours,
545 RTC_AlarmStruct->AlarmTime.Minutes, RTC_AlarmStruct->AlarmTime.Seconds);
546 }
547 else
548 {
549 LL_RTC_ALMA_ConfigTime(RTCx, RTC_AlarmStruct->AlarmTime.TimeFormat,
550 __LL_RTC_CONVERT_BIN2BCD(RTC_AlarmStruct->AlarmTime.Hours),
551 __LL_RTC_CONVERT_BIN2BCD(RTC_AlarmStruct->AlarmTime.Minutes),
552 __LL_RTC_CONVERT_BIN2BCD(RTC_AlarmStruct->AlarmTime.Seconds));
553 }
554 /* Set ALARM mask */
555 LL_RTC_ALMA_SetMask(RTCx, RTC_AlarmStruct->AlarmMask);
556
557 /* Enable the write protection for RTC registers */
558 LL_RTC_EnableWriteProtection(RTCx);
559
560 return SUCCESS;
561 }
562
563 /**
564 * @brief Set the RTC Alarm B.
565 * @note The Alarm register can only be written when the corresponding Alarm
566 * is disabled (@ref LL_RTC_ALMB_Disable function).
567 * @param RTCx RTC Instance
568 * @param RTC_Format This parameter can be one of the following values:
569 * @arg @ref LL_RTC_FORMAT_BIN
570 * @arg @ref LL_RTC_FORMAT_BCD
571 * @param RTC_AlarmStruct pointer to a @ref LL_RTC_AlarmTypeDef structure that
572 * contains the alarm configuration parameters.
573 * @retval An ErrorStatus enumeration value:
574 * - SUCCESS: ALARMB registers are configured
575 * - ERROR: ALARMB registers are not configured
576 */
LL_RTC_ALMB_Init(RTC_TypeDef * RTCx,uint32_t RTC_Format,LL_RTC_AlarmTypeDef * RTC_AlarmStruct)577 ErrorStatus LL_RTC_ALMB_Init(RTC_TypeDef *RTCx, uint32_t RTC_Format, LL_RTC_AlarmTypeDef *RTC_AlarmStruct)
578 {
579 /* Check the parameters */
580 assert_param(IS_RTC_ALL_INSTANCE(RTCx));
581 assert_param(IS_LL_RTC_FORMAT(RTC_Format));
582 assert_param(IS_LL_RTC_ALMB_MASK(RTC_AlarmStruct->AlarmMask));
583 assert_param(IS_LL_RTC_ALMB_DATE_WEEKDAY_SEL(RTC_AlarmStruct->AlarmDateWeekDaySel));
584
585 if (RTC_Format == LL_RTC_FORMAT_BIN)
586 {
587 if (LL_RTC_GetHourFormat(RTCx) != LL_RTC_HOURFORMAT_24HOUR)
588 {
589 assert_param(IS_LL_RTC_HOUR12(RTC_AlarmStruct->AlarmTime.Hours));
590 assert_param(IS_LL_RTC_TIME_FORMAT(RTC_AlarmStruct->AlarmTime.TimeFormat));
591 }
592 else
593 {
594 RTC_AlarmStruct->AlarmTime.TimeFormat = 0x00U;
595 assert_param(IS_LL_RTC_HOUR24(RTC_AlarmStruct->AlarmTime.Hours));
596 }
597 assert_param(IS_LL_RTC_MINUTES(RTC_AlarmStruct->AlarmTime.Minutes));
598 assert_param(IS_LL_RTC_SECONDS(RTC_AlarmStruct->AlarmTime.Seconds));
599
600 if (RTC_AlarmStruct->AlarmDateWeekDaySel == LL_RTC_ALMB_DATEWEEKDAYSEL_DATE)
601 {
602 assert_param(IS_LL_RTC_DAY(RTC_AlarmStruct->AlarmDateWeekDay));
603 }
604 else
605 {
606 assert_param(IS_LL_RTC_WEEKDAY(RTC_AlarmStruct->AlarmDateWeekDay));
607 }
608 }
609 else
610 {
611 if (LL_RTC_GetHourFormat(RTCx) != LL_RTC_HOURFORMAT_24HOUR)
612 {
613 assert_param(IS_LL_RTC_HOUR12(__LL_RTC_CONVERT_BCD2BIN(RTC_AlarmStruct->AlarmTime.Hours)));
614 assert_param(IS_LL_RTC_TIME_FORMAT(RTC_AlarmStruct->AlarmTime.TimeFormat));
615 }
616 else
617 {
618 RTC_AlarmStruct->AlarmTime.TimeFormat = 0x00U;
619 assert_param(IS_LL_RTC_HOUR24(__LL_RTC_CONVERT_BCD2BIN(RTC_AlarmStruct->AlarmTime.Hours)));
620 }
621
622 assert_param(IS_LL_RTC_MINUTES(__LL_RTC_CONVERT_BCD2BIN(RTC_AlarmStruct->AlarmTime.Minutes)));
623 assert_param(IS_LL_RTC_SECONDS(__LL_RTC_CONVERT_BCD2BIN(RTC_AlarmStruct->AlarmTime.Seconds)));
624
625 if (RTC_AlarmStruct->AlarmDateWeekDaySel == LL_RTC_ALMB_DATEWEEKDAYSEL_DATE)
626 {
627 assert_param(IS_LL_RTC_DAY(__LL_RTC_CONVERT_BCD2BIN(RTC_AlarmStruct->AlarmDateWeekDay)));
628 }
629 else
630 {
631 assert_param(IS_LL_RTC_WEEKDAY(__LL_RTC_CONVERT_BCD2BIN(RTC_AlarmStruct->AlarmDateWeekDay)));
632 }
633 }
634
635 /* Disable the write protection for RTC registers */
636 LL_RTC_DisableWriteProtection(RTCx);
637
638 /* Select weekday selection */
639 if (RTC_AlarmStruct->AlarmDateWeekDaySel == LL_RTC_ALMB_DATEWEEKDAYSEL_DATE)
640 {
641 /* Set the date for ALARM */
642 LL_RTC_ALMB_DisableWeekday(RTCx);
643 if (RTC_Format != LL_RTC_FORMAT_BIN)
644 {
645 LL_RTC_ALMB_SetDay(RTCx, RTC_AlarmStruct->AlarmDateWeekDay);
646 }
647 else
648 {
649 LL_RTC_ALMB_SetDay(RTCx, __LL_RTC_CONVERT_BIN2BCD(RTC_AlarmStruct->AlarmDateWeekDay));
650 }
651 }
652 else
653 {
654 /* Set the week day for ALARM */
655 LL_RTC_ALMB_EnableWeekday(RTCx);
656 LL_RTC_ALMB_SetWeekDay(RTCx, RTC_AlarmStruct->AlarmDateWeekDay);
657 }
658
659 /* Configure the Alarm register */
660 if (RTC_Format != LL_RTC_FORMAT_BIN)
661 {
662 LL_RTC_ALMB_ConfigTime(RTCx, RTC_AlarmStruct->AlarmTime.TimeFormat, RTC_AlarmStruct->AlarmTime.Hours,
663 RTC_AlarmStruct->AlarmTime.Minutes, RTC_AlarmStruct->AlarmTime.Seconds);
664 }
665 else
666 {
667 LL_RTC_ALMB_ConfigTime(RTCx, RTC_AlarmStruct->AlarmTime.TimeFormat,
668 __LL_RTC_CONVERT_BIN2BCD(RTC_AlarmStruct->AlarmTime.Hours),
669 __LL_RTC_CONVERT_BIN2BCD(RTC_AlarmStruct->AlarmTime.Minutes),
670 __LL_RTC_CONVERT_BIN2BCD(RTC_AlarmStruct->AlarmTime.Seconds));
671 }
672 /* Set ALARM mask */
673 LL_RTC_ALMB_SetMask(RTCx, RTC_AlarmStruct->AlarmMask);
674
675 /* Enable the write protection for RTC registers */
676 LL_RTC_EnableWriteProtection(RTCx);
677
678 return SUCCESS;
679 }
680
681 /**
682 * @brief Set each @ref LL_RTC_AlarmTypeDef of ALARMA field to default value (Time = 00h:00mn:00sec /
683 * Day = 1st day of the month/Mask = all fields are masked).
684 * @param RTC_AlarmStruct pointer to a @ref LL_RTC_AlarmTypeDef structure which will be initialized.
685 * @retval None
686 */
LL_RTC_ALMA_StructInit(LL_RTC_AlarmTypeDef * RTC_AlarmStruct)687 void LL_RTC_ALMA_StructInit(LL_RTC_AlarmTypeDef *RTC_AlarmStruct)
688 {
689 /* Alarm Time Settings : Time = 00h:00mn:00sec */
690 RTC_AlarmStruct->AlarmTime.TimeFormat = LL_RTC_ALMA_TIME_FORMAT_AM;
691 RTC_AlarmStruct->AlarmTime.Hours = 0U;
692 RTC_AlarmStruct->AlarmTime.Minutes = 0U;
693 RTC_AlarmStruct->AlarmTime.Seconds = 0U;
694
695 /* Alarm Day Settings : Day = 1st day of the month */
696 RTC_AlarmStruct->AlarmDateWeekDaySel = LL_RTC_ALMA_DATEWEEKDAYSEL_DATE;
697 RTC_AlarmStruct->AlarmDateWeekDay = 1U;
698
699 /* Alarm Masks Settings : Mask = all fields are not masked */
700 RTC_AlarmStruct->AlarmMask = LL_RTC_ALMA_MASK_NONE;
701 }
702
703 /**
704 * @brief Set each @ref LL_RTC_AlarmTypeDef of ALARMA field to default value (Time = 00h:00mn:00sec /
705 * Day = 1st day of the month/Mask = all fields are masked).
706 * @param RTC_AlarmStruct pointer to a @ref LL_RTC_AlarmTypeDef structure which will be initialized.
707 * @retval None
708 */
LL_RTC_ALMB_StructInit(LL_RTC_AlarmTypeDef * RTC_AlarmStruct)709 void LL_RTC_ALMB_StructInit(LL_RTC_AlarmTypeDef *RTC_AlarmStruct)
710 {
711 /* Alarm Time Settings : Time = 00h:00mn:00sec */
712 RTC_AlarmStruct->AlarmTime.TimeFormat = LL_RTC_ALMB_TIME_FORMAT_AM;
713 RTC_AlarmStruct->AlarmTime.Hours = 0U;
714 RTC_AlarmStruct->AlarmTime.Minutes = 0U;
715 RTC_AlarmStruct->AlarmTime.Seconds = 0U;
716
717 /* Alarm Day Settings : Day = 1st day of the month */
718 RTC_AlarmStruct->AlarmDateWeekDaySel = LL_RTC_ALMB_DATEWEEKDAYSEL_DATE;
719 RTC_AlarmStruct->AlarmDateWeekDay = 1U;
720
721 /* Alarm Masks Settings : Mask = all fields are not masked */
722 RTC_AlarmStruct->AlarmMask = LL_RTC_ALMB_MASK_NONE;
723 }
724
725 /**
726 * @brief Enters the RTC Initialization mode.
727 * @note The RTC Initialization mode is write protected, use the
728 * @ref LL_RTC_DisableWriteProtection before calling this function.
729 * @param RTCx RTC Instance
730 * @retval An ErrorStatus enumeration value:
731 * - SUCCESS: RTC is in Init mode
732 * - ERROR: RTC is not in Init mode
733 */
LL_RTC_EnterInitMode(RTC_TypeDef * RTCx)734 ErrorStatus LL_RTC_EnterInitMode(RTC_TypeDef *RTCx)
735 {
736 __IO uint32_t timeout = RTC_INITMODE_TIMEOUT;
737 ErrorStatus status = SUCCESS;
738 uint32_t tmp;
739
740 /* Check the parameter */
741 assert_param(IS_RTC_ALL_INSTANCE(RTCx));
742
743 /* Check if the Initialization mode is set */
744 if (LL_RTC_IsActiveFlag_INIT(RTCx) == 0U)
745 {
746 /* Set the Initialization mode */
747 LL_RTC_EnableInitMode(RTCx);
748
749 /* Wait till RTC is in INIT state and if Time out is reached exit */
750 tmp = LL_RTC_IsActiveFlag_INIT(RTCx);
751 while ((timeout != 0U) && (tmp != 1U))
752 {
753 if (LL_SYSTICK_IsActiveCounterFlag() == 1U)
754 {
755 timeout --;
756 }
757 tmp = LL_RTC_IsActiveFlag_INIT(RTCx);
758 if (timeout == 0U)
759 {
760 status = ERROR;
761 }
762 }
763 }
764 return status;
765 }
766
767 /**
768 * @brief Exit the RTC Initialization mode.
769 * @note When the initialization sequence is complete, the calendar restarts
770 * counting after 4 RTCCLK cycles.
771 * @note The RTC Initialization mode is write protected, use the
772 * @ref LL_RTC_DisableWriteProtection before calling this function.
773 * @param RTCx RTC Instance
774 * @retval An ErrorStatus enumeration value:
775 * - SUCCESS: RTC exited from in Init mode
776 * - ERROR: Not applicable
777 */
LL_RTC_ExitInitMode(RTC_TypeDef * RTCx)778 ErrorStatus LL_RTC_ExitInitMode(RTC_TypeDef *RTCx)
779 {
780 /* Check the parameter */
781 assert_param(IS_RTC_ALL_INSTANCE(RTCx));
782
783 /* Disable initialization mode */
784 LL_RTC_DisableInitMode(RTCx);
785
786 return SUCCESS;
787 }
788
789 /**
790 * @brief Waits until the RTC Time and Day registers (RTC_TR and RTC_DR) are
791 * synchronized with RTC APB clock.
792 * @note The RTC Resynchronization mode is write protected, use the
793 * @ref LL_RTC_DisableWriteProtection before calling this function.
794 * @note To read the calendar through the shadow registers after Calendar
795 * initialization, calendar update or after wakeup from low power modes
796 * the software must first clear the RSF flag.
797 * The software must then wait until it is set again before reading
798 * the calendar, which means that the calendar registers have been
799 * correctly copied into the RTC_TR and RTC_DR shadow registers.
800 * @param RTCx RTC Instance
801 * @retval An ErrorStatus enumeration value:
802 * - SUCCESS: RTC registers are synchronised
803 * - ERROR: RTC registers are not synchronised
804 */
LL_RTC_WaitForSynchro(RTC_TypeDef * RTCx)805 ErrorStatus LL_RTC_WaitForSynchro(RTC_TypeDef *RTCx)
806 {
807 __IO uint32_t timeout = RTC_SYNCHRO_TIMEOUT;
808 uint32_t tmp;
809 ErrorStatus status = SUCCESS;
810
811 /* Check the parameter */
812 assert_param(IS_RTC_ALL_INSTANCE(RTCx));
813
814 /* Clear RSF flag */
815 LL_RTC_ClearFlag_RS(RTCx);
816
817 /* Wait the registers to be synchronised */
818 tmp = LL_RTC_IsActiveFlag_RS(RTCx);
819 while ((timeout != 0U) && (tmp != 1U))
820 {
821 if (LL_SYSTICK_IsActiveCounterFlag() == 1U)
822 {
823 timeout--;
824 }
825 tmp = LL_RTC_IsActiveFlag_RS(RTCx);
826 }
827
828 if (timeout == 0U)
829 {
830 status = ERROR;
831 }
832
833 return status;
834 }
835
836 /**
837 * @}
838 */
839
840 /**
841 * @}
842 */
843
844 /**
845 * @}
846 */
847
848 #endif /* defined(RTC) */
849
850 /**
851 * @}
852 */
853
854 #endif /* USE_FULL_LL_DRIVER */
855
856
