1 | /** |
---|
2 | ****************************************************************************** |
---|
3 | * @file stm32g0xx_ll_rtc.c |
---|
4 | * @author MCD Application Team |
---|
5 | * @brief RTC LL module driver. |
---|
6 | ****************************************************************************** |
---|
7 | * @attention |
---|
8 | * |
---|
9 | * <h2><center>© Copyright (c) 2018 STMicroelectronics. |
---|
10 | * All rights reserved.</center></h2> |
---|
11 | * |
---|
12 | * This software component is licensed by ST under BSD 3-Clause license, |
---|
13 | * the "License"; You may not use this file except in compliance with the |
---|
14 | * License. You may obtain a copy of the License at: |
---|
15 | * opensource.org/licenses/BSD-3-Clause |
---|
16 | * |
---|
17 | ****************************************************************************** |
---|
18 | */ |
---|
19 | #if defined(USE_FULL_LL_DRIVER) |
---|
20 | |
---|
21 | /* Includes ------------------------------------------------------------------*/ |
---|
22 | #include "stm32g0xx_ll_rtc.h" |
---|
23 | #include "stm32g0xx_ll_cortex.h" |
---|
24 | #ifdef USE_FULL_ASSERT |
---|
25 | #include "stm32_assert.h" |
---|
26 | #else |
---|
27 | #define assert_param(expr) ((void)0U) |
---|
28 | #endif |
---|
29 | |
---|
30 | /** @addtogroup STM32G0xx_LL_Driver |
---|
31 | * @{ |
---|
32 | */ |
---|
33 | |
---|
34 | #if defined(RTC) |
---|
35 | |
---|
36 | /** @addtogroup RTC_LL |
---|
37 | * @{ |
---|
38 | */ |
---|
39 | |
---|
40 | /* Private types -------------------------------------------------------------*/ |
---|
41 | /* Private variables ---------------------------------------------------------*/ |
---|
42 | /* Private constants ---------------------------------------------------------*/ |
---|
43 | /** @addtogroup RTC_LL_Private_Constants |
---|
44 | * @{ |
---|
45 | */ |
---|
46 | /* Default values used for prescaler */ |
---|
47 | #define RTC_ASYNCH_PRESC_DEFAULT 0x0000007FU |
---|
48 | #define RTC_SYNCH_PRESC_DEFAULT 0x000000FFU |
---|
49 | |
---|
50 | /* Values used for timeout */ |
---|
51 | #define RTC_INITMODE_TIMEOUT 1000U /* 1s when tick set to 1ms */ |
---|
52 | #define RTC_SYNCHRO_TIMEOUT 1000U /* 1s when tick set to 1ms */ |
---|
53 | /** |
---|
54 | * @} |
---|
55 | */ |
---|
56 | |
---|
57 | /* Private macros ------------------------------------------------------------*/ |
---|
58 | /** @addtogroup RTC_LL_Private_Macros |
---|
59 | * @{ |
---|
60 | */ |
---|
61 | |
---|
62 | #define IS_LL_RTC_HOURFORMAT(__VALUE__) (((__VALUE__) == LL_RTC_HOURFORMAT_24HOUR) \ |
---|
63 | || ((__VALUE__) == LL_RTC_HOURFORMAT_AMPM)) |
---|
64 | |
---|
65 | #define IS_LL_RTC_ASYNCH_PREDIV(__VALUE__) ((__VALUE__) <= 0x7FU) |
---|
66 | |
---|
67 | #define IS_LL_RTC_SYNCH_PREDIV(__VALUE__) ((__VALUE__) <= 0x7FFFU) |
---|
68 | |
---|
69 | #define IS_LL_RTC_FORMAT(__VALUE__) (((__VALUE__) == LL_RTC_FORMAT_BIN) \ |
---|
70 | || ((__VALUE__) == LL_RTC_FORMAT_BCD)) |
---|
71 | |
---|
72 | #define IS_LL_RTC_TIME_FORMAT(__VALUE__) (((__VALUE__) == LL_RTC_TIME_FORMAT_AM_OR_24) \ |
---|
73 | || ((__VALUE__) == LL_RTC_TIME_FORMAT_PM)) |
---|
74 | |
---|
75 | #define IS_LL_RTC_HOUR12(__HOUR__) (((__HOUR__) > 0U) && ((__HOUR__) <= 12U)) |
---|
76 | #define IS_LL_RTC_HOUR24(__HOUR__) ((__HOUR__) <= 23U) |
---|
77 | #define IS_LL_RTC_MINUTES(__MINUTES__) ((__MINUTES__) <= 59U) |
---|
78 | #define IS_LL_RTC_SECONDS(__SECONDS__) ((__SECONDS__) <= 59U) |
---|
79 | |
---|
80 | #define IS_LL_RTC_WEEKDAY(__VALUE__) (((__VALUE__) == LL_RTC_WEEKDAY_MONDAY) \ |
---|
81 | || ((__VALUE__) == LL_RTC_WEEKDAY_TUESDAY) \ |
---|
82 | || ((__VALUE__) == LL_RTC_WEEKDAY_WEDNESDAY) \ |
---|
83 | || ((__VALUE__) == LL_RTC_WEEKDAY_THURSDAY) \ |
---|
84 | || ((__VALUE__) == LL_RTC_WEEKDAY_FRIDAY) \ |
---|
85 | || ((__VALUE__) == LL_RTC_WEEKDAY_SATURDAY) \ |
---|
86 | || ((__VALUE__) == LL_RTC_WEEKDAY_SUNDAY)) |
---|
87 | |
---|
88 | #define IS_LL_RTC_DAY(__DAY__) (((__DAY__) >= 1U) && ((__DAY__) <= 31U)) |
---|
89 | |
---|
90 | #define IS_LL_RTC_MONTH(__VALUE__) (((__VALUE__) == LL_RTC_MONTH_JANUARY) \ |
---|
91 | || ((__VALUE__) == LL_RTC_MONTH_FEBRUARY) \ |
---|
92 | || ((__VALUE__) == LL_RTC_MONTH_MARCH) \ |
---|
93 | || ((__VALUE__) == LL_RTC_MONTH_APRIL) \ |
---|
94 | || ((__VALUE__) == LL_RTC_MONTH_MAY) \ |
---|
95 | || ((__VALUE__) == LL_RTC_MONTH_JUNE) \ |
---|
96 | || ((__VALUE__) == LL_RTC_MONTH_JULY) \ |
---|
97 | || ((__VALUE__) == LL_RTC_MONTH_AUGUST) \ |
---|
98 | || ((__VALUE__) == LL_RTC_MONTH_SEPTEMBER) \ |
---|
99 | || ((__VALUE__) == LL_RTC_MONTH_OCTOBER) \ |
---|
100 | || ((__VALUE__) == LL_RTC_MONTH_NOVEMBER) \ |
---|
101 | || ((__VALUE__) == LL_RTC_MONTH_DECEMBER)) |
---|
102 | |
---|
103 | #define IS_LL_RTC_YEAR(__YEAR__) ((__YEAR__) <= 99U) |
---|
104 | |
---|
105 | #define IS_LL_RTC_ALMA_MASK(__VALUE__) (((__VALUE__) == LL_RTC_ALMA_MASK_NONE) \ |
---|
106 | || ((__VALUE__) == LL_RTC_ALMA_MASK_DATEWEEKDAY) \ |
---|
107 | || ((__VALUE__) == LL_RTC_ALMA_MASK_HOURS) \ |
---|
108 | || ((__VALUE__) == LL_RTC_ALMA_MASK_MINUTES) \ |
---|
109 | || ((__VALUE__) == LL_RTC_ALMA_MASK_SECONDS) \ |
---|
110 | || ((__VALUE__) == LL_RTC_ALMA_MASK_ALL)) |
---|
111 | |
---|
112 | #define IS_LL_RTC_ALMB_MASK(__VALUE__) (((__VALUE__) == LL_RTC_ALMB_MASK_NONE) \ |
---|
113 | || ((__VALUE__) == LL_RTC_ALMB_MASK_DATEWEEKDAY) \ |
---|
114 | || ((__VALUE__) == LL_RTC_ALMB_MASK_HOURS) \ |
---|
115 | || ((__VALUE__) == LL_RTC_ALMB_MASK_MINUTES) \ |
---|
116 | || ((__VALUE__) == LL_RTC_ALMB_MASK_SECONDS) \ |
---|
117 | || ((__VALUE__) == LL_RTC_ALMB_MASK_ALL)) |
---|
118 | |
---|
119 | |
---|
120 | #define IS_LL_RTC_ALMA_DATE_WEEKDAY_SEL(__SEL__) (((__SEL__) == LL_RTC_ALMA_DATEWEEKDAYSEL_DATE) || \ |
---|
121 | ((__SEL__) == LL_RTC_ALMA_DATEWEEKDAYSEL_WEEKDAY)) |
---|
122 | |
---|
123 | #define IS_LL_RTC_ALMB_DATE_WEEKDAY_SEL(__SEL__) (((__SEL__) == LL_RTC_ALMB_DATEWEEKDAYSEL_DATE) || \ |
---|
124 | ((__SEL__) == LL_RTC_ALMB_DATEWEEKDAYSEL_WEEKDAY)) |
---|
125 | |
---|
126 | |
---|
127 | /** |
---|
128 | * @} |
---|
129 | */ |
---|
130 | /* Private function prototypes -----------------------------------------------*/ |
---|
131 | /* Exported functions --------------------------------------------------------*/ |
---|
132 | /** @addtogroup RTC_LL_Exported_Functions |
---|
133 | * @{ |
---|
134 | */ |
---|
135 | |
---|
136 | /** @addtogroup RTC_LL_EF_Init |
---|
137 | * @{ |
---|
138 | */ |
---|
139 | |
---|
140 | /** |
---|
141 | * @brief De-Initializes the RTC registers to their default reset values. |
---|
142 | * @note This function does not reset the RTC Clock source and RTC Backup Data |
---|
143 | * registers. |
---|
144 | * @param RTCx RTC Instance |
---|
145 | * @retval An ErrorStatus enumeration value: |
---|
146 | * - SUCCESS: RTC registers are de-initialized |
---|
147 | * - ERROR: RTC registers are not de-initialized |
---|
148 | */ |
---|
149 | ErrorStatus LL_RTC_DeInit(RTC_TypeDef *RTCx) |
---|
150 | { |
---|
151 | ErrorStatus status = ERROR; |
---|
152 | |
---|
153 | /* Check the parameter */ |
---|
154 | assert_param(IS_RTC_ALL_INSTANCE(RTCx)); |
---|
155 | |
---|
156 | /* Disable the write protection for RTC registers */ |
---|
157 | LL_RTC_DisableWriteProtection(RTCx); |
---|
158 | |
---|
159 | /* Set Initialization mode */ |
---|
160 | if (LL_RTC_EnterInitMode(RTCx) != ERROR) |
---|
161 | { |
---|
162 | /* Reset TR, DR and CR registers */ |
---|
163 | WRITE_REG(RTCx->TR, 0x00000000U); |
---|
164 | #if defined(RTC_WAKEUP_SUPPORT) |
---|
165 | WRITE_REG(RTCx->WUTR, RTC_WUTR_WUT); |
---|
166 | #endif /* RTC_WAKEUP_SUPPORT */ |
---|
167 | WRITE_REG(RTCx->DR , (RTC_DR_WDU_0 | RTC_DR_MU_0 | RTC_DR_DU_0)); |
---|
168 | /* Reset All CR bits except CR[2:0] */ |
---|
169 | #if defined(RTC_WAKEUP_SUPPORT) |
---|
170 | WRITE_REG(RTCx->CR, (READ_REG(RTCx->CR) & RTC_CR_WUCKSEL)); |
---|
171 | #else |
---|
172 | WRITE_REG(RTCx->CR, 0x00000000U); |
---|
173 | #endif /* RTC_WAKEUP_SUPPORT */ |
---|
174 | WRITE_REG(RTCx->PRER, (RTC_PRER_PREDIV_A | RTC_SYNCH_PRESC_DEFAULT)); |
---|
175 | WRITE_REG(RTCx->ALRMAR, 0x00000000U); |
---|
176 | WRITE_REG(RTCx->ALRMBR, 0x00000000U); |
---|
177 | WRITE_REG(RTCx->SHIFTR, 0x00000000U); |
---|
178 | WRITE_REG(RTCx->CALR, 0x00000000U); |
---|
179 | WRITE_REG(RTCx->ALRMASSR, 0x00000000U); |
---|
180 | WRITE_REG(RTCx->ALRMBSSR, 0x00000000U); |
---|
181 | |
---|
182 | /* Exit Initialization mode */ |
---|
183 | LL_RTC_DisableInitMode(RTCx); |
---|
184 | |
---|
185 | /* Wait till the RTC RSF flag is set */ |
---|
186 | status = LL_RTC_WaitForSynchro(RTCx); |
---|
187 | } |
---|
188 | |
---|
189 | /* Enable the write protection for RTC registers */ |
---|
190 | LL_RTC_EnableWriteProtection(RTCx); |
---|
191 | |
---|
192 | return status; |
---|
193 | } |
---|
194 | |
---|
195 | /** |
---|
196 | * @brief Initializes the RTC registers according to the specified parameters |
---|
197 | * in RTC_InitStruct. |
---|
198 | * @param RTCx RTC Instance |
---|
199 | * @param RTC_InitStruct pointer to a @ref LL_RTC_InitTypeDef structure that contains |
---|
200 | * the configuration information for the RTC peripheral. |
---|
201 | * @note The RTC Prescaler register is write protected and can be written in |
---|
202 | * initialization mode only. |
---|
203 | * @retval An ErrorStatus enumeration value: |
---|
204 | * - SUCCESS: RTC registers are initialized |
---|
205 | * - ERROR: RTC registers are not initialized |
---|
206 | */ |
---|
207 | ErrorStatus LL_RTC_Init(RTC_TypeDef *RTCx, LL_RTC_InitTypeDef *RTC_InitStruct) |
---|
208 | { |
---|
209 | ErrorStatus status = ERROR; |
---|
210 | |
---|
211 | /* Check the parameters */ |
---|
212 | assert_param(IS_RTC_ALL_INSTANCE(RTCx)); |
---|
213 | assert_param(IS_LL_RTC_HOURFORMAT(RTC_InitStruct->HourFormat)); |
---|
214 | assert_param(IS_LL_RTC_ASYNCH_PREDIV(RTC_InitStruct->AsynchPrescaler)); |
---|
215 | assert_param(IS_LL_RTC_SYNCH_PREDIV(RTC_InitStruct->SynchPrescaler)); |
---|
216 | |
---|
217 | /* Disable the write protection for RTC registers */ |
---|
218 | LL_RTC_DisableWriteProtection(RTCx); |
---|
219 | |
---|
220 | /* Set Initialization mode */ |
---|
221 | if (LL_RTC_EnterInitMode(RTCx) != ERROR) |
---|
222 | { |
---|
223 | /* Set Hour Format */ |
---|
224 | LL_RTC_SetHourFormat(RTCx, RTC_InitStruct->HourFormat); |
---|
225 | |
---|
226 | /* Configure Synchronous and Asynchronous prescaler factor */ |
---|
227 | LL_RTC_SetSynchPrescaler(RTCx, RTC_InitStruct->SynchPrescaler); |
---|
228 | LL_RTC_SetAsynchPrescaler(RTCx, RTC_InitStruct->AsynchPrescaler); |
---|
229 | |
---|
230 | /* Exit Initialization mode */ |
---|
231 | LL_RTC_DisableInitMode(RTCx); |
---|
232 | |
---|
233 | status = SUCCESS; |
---|
234 | } |
---|
235 | /* Enable the write protection for RTC registers */ |
---|
236 | LL_RTC_EnableWriteProtection(RTCx); |
---|
237 | |
---|
238 | return status; |
---|
239 | } |
---|
240 | |
---|
241 | /** |
---|
242 | * @brief Set each @ref LL_RTC_InitTypeDef field to default value. |
---|
243 | * @param RTC_InitStruct pointer to a @ref LL_RTC_InitTypeDef structure which will be initialized. |
---|
244 | * @retval None |
---|
245 | */ |
---|
246 | void LL_RTC_StructInit(LL_RTC_InitTypeDef *RTC_InitStruct) |
---|
247 | { |
---|
248 | /* Set RTC_InitStruct fields to default values */ |
---|
249 | RTC_InitStruct->HourFormat = LL_RTC_HOURFORMAT_24HOUR; |
---|
250 | RTC_InitStruct->AsynchPrescaler = RTC_ASYNCH_PRESC_DEFAULT; |
---|
251 | RTC_InitStruct->SynchPrescaler = RTC_SYNCH_PRESC_DEFAULT; |
---|
252 | } |
---|
253 | |
---|
254 | /** |
---|
255 | * @brief Set the RTC current time. |
---|
256 | * @param RTCx RTC Instance |
---|
257 | * @param RTC_Format This parameter can be one of the following values: |
---|
258 | * @arg @ref LL_RTC_FORMAT_BIN |
---|
259 | * @arg @ref LL_RTC_FORMAT_BCD |
---|
260 | * @param RTC_TimeStruct pointer to a RTC_TimeTypeDef structure that contains |
---|
261 | * the time configuration information for the RTC. |
---|
262 | * @retval An ErrorStatus enumeration value: |
---|
263 | * - SUCCESS: RTC Time register is configured |
---|
264 | * - ERROR: RTC Time register is not configured |
---|
265 | */ |
---|
266 | ErrorStatus LL_RTC_TIME_Init(RTC_TypeDef *RTCx, uint32_t RTC_Format, LL_RTC_TimeTypeDef *RTC_TimeStruct) |
---|
267 | { |
---|
268 | ErrorStatus status = ERROR; |
---|
269 | |
---|
270 | /* Check the parameters */ |
---|
271 | assert_param(IS_RTC_ALL_INSTANCE(RTCx)); |
---|
272 | assert_param(IS_LL_RTC_FORMAT(RTC_Format)); |
---|
273 | |
---|
274 | if (RTC_Format == LL_RTC_FORMAT_BIN) |
---|
275 | { |
---|
276 | if (LL_RTC_GetHourFormat(RTCx) != LL_RTC_HOURFORMAT_24HOUR) |
---|
277 | { |
---|
278 | assert_param(IS_LL_RTC_HOUR12(RTC_TimeStruct->Hours)); |
---|
279 | assert_param(IS_LL_RTC_TIME_FORMAT(RTC_TimeStruct->TimeFormat)); |
---|
280 | } |
---|
281 | else |
---|
282 | { |
---|
283 | RTC_TimeStruct->TimeFormat = 0x00U; |
---|
284 | assert_param(IS_LL_RTC_HOUR24(RTC_TimeStruct->Hours)); |
---|
285 | } |
---|
286 | assert_param(IS_LL_RTC_MINUTES(RTC_TimeStruct->Minutes)); |
---|
287 | assert_param(IS_LL_RTC_SECONDS(RTC_TimeStruct->Seconds)); |
---|
288 | } |
---|
289 | else |
---|
290 | { |
---|
291 | if (LL_RTC_GetHourFormat(RTCx) != LL_RTC_HOURFORMAT_24HOUR) |
---|
292 | { |
---|
293 | assert_param(IS_LL_RTC_HOUR12(__LL_RTC_CONVERT_BCD2BIN(RTC_TimeStruct->Hours))); |
---|
294 | assert_param(IS_LL_RTC_TIME_FORMAT(RTC_TimeStruct->TimeFormat)); |
---|
295 | } |
---|
296 | else |
---|
297 | { |
---|
298 | RTC_TimeStruct->TimeFormat = 0x00U; |
---|
299 | assert_param(IS_LL_RTC_HOUR24(__LL_RTC_CONVERT_BCD2BIN(RTC_TimeStruct->Hours))); |
---|
300 | } |
---|
301 | assert_param(IS_LL_RTC_MINUTES(__LL_RTC_CONVERT_BCD2BIN(RTC_TimeStruct->Minutes))); |
---|
302 | assert_param(IS_LL_RTC_SECONDS(__LL_RTC_CONVERT_BCD2BIN(RTC_TimeStruct->Seconds))); |
---|
303 | } |
---|
304 | |
---|
305 | /* Disable the write protection for RTC registers */ |
---|
306 | LL_RTC_DisableWriteProtection(RTCx); |
---|
307 | |
---|
308 | /* Set Initialization mode */ |
---|
309 | if (LL_RTC_EnterInitMode(RTCx) != ERROR) |
---|
310 | { |
---|
311 | /* Check the input parameters format */ |
---|
312 | if (RTC_Format != LL_RTC_FORMAT_BIN) |
---|
313 | { |
---|
314 | LL_RTC_TIME_Config(RTCx, RTC_TimeStruct->TimeFormat, RTC_TimeStruct->Hours, |
---|
315 | RTC_TimeStruct->Minutes, RTC_TimeStruct->Seconds); |
---|
316 | } |
---|
317 | else |
---|
318 | { |
---|
319 | LL_RTC_TIME_Config(RTCx, RTC_TimeStruct->TimeFormat, __LL_RTC_CONVERT_BIN2BCD(RTC_TimeStruct->Hours), |
---|
320 | __LL_RTC_CONVERT_BIN2BCD(RTC_TimeStruct->Minutes), |
---|
321 | __LL_RTC_CONVERT_BIN2BCD(RTC_TimeStruct->Seconds)); |
---|
322 | } |
---|
323 | |
---|
324 | /* Exit Initialization mode */ |
---|
325 | LL_RTC_DisableInitMode(RTC); |
---|
326 | |
---|
327 | /* If RTC_CR_BYPSHAD bit = 0, wait for synchro else this check is not needed */ |
---|
328 | if (LL_RTC_IsShadowRegBypassEnabled(RTCx) == 0U) |
---|
329 | { |
---|
330 | status = LL_RTC_WaitForSynchro(RTCx); |
---|
331 | } |
---|
332 | else |
---|
333 | { |
---|
334 | status = SUCCESS; |
---|
335 | } |
---|
336 | } |
---|
337 | /* Enable the write protection for RTC registers */ |
---|
338 | LL_RTC_EnableWriteProtection(RTCx); |
---|
339 | |
---|
340 | return status; |
---|
341 | } |
---|
342 | |
---|
343 | /** |
---|
344 | * @brief Set each @ref LL_RTC_TimeTypeDef field to default value (Time = 00h:00min:00sec). |
---|
345 | * @param RTC_TimeStruct pointer to a @ref LL_RTC_TimeTypeDef structure which will be initialized. |
---|
346 | * @retval None |
---|
347 | */ |
---|
348 | void LL_RTC_TIME_StructInit(LL_RTC_TimeTypeDef *RTC_TimeStruct) |
---|
349 | { |
---|
350 | /* Time = 00h:00min:00sec */ |
---|
351 | RTC_TimeStruct->TimeFormat = LL_RTC_TIME_FORMAT_AM_OR_24; |
---|
352 | RTC_TimeStruct->Hours = 0U; |
---|
353 | RTC_TimeStruct->Minutes = 0U; |
---|
354 | RTC_TimeStruct->Seconds = 0U; |
---|
355 | } |
---|
356 | |
---|
357 | /** |
---|
358 | * @brief Set the RTC current date. |
---|
359 | * @param RTCx RTC Instance |
---|
360 | * @param RTC_Format This parameter can be one of the following values: |
---|
361 | * @arg @ref LL_RTC_FORMAT_BIN |
---|
362 | * @arg @ref LL_RTC_FORMAT_BCD |
---|
363 | * @param RTC_DateStruct pointer to a RTC_DateTypeDef structure that contains |
---|
364 | * the date configuration information for the RTC. |
---|
365 | * @retval An ErrorStatus enumeration value: |
---|
366 | * - SUCCESS: RTC Day register is configured |
---|
367 | * - ERROR: RTC Day register is not configured |
---|
368 | */ |
---|
369 | ErrorStatus LL_RTC_DATE_Init(RTC_TypeDef *RTCx, uint32_t RTC_Format, LL_RTC_DateTypeDef *RTC_DateStruct) |
---|
370 | { |
---|
371 | ErrorStatus status = ERROR; |
---|
372 | |
---|
373 | /* Check the parameters */ |
---|
374 | assert_param(IS_RTC_ALL_INSTANCE(RTCx)); |
---|
375 | assert_param(IS_LL_RTC_FORMAT(RTC_Format)); |
---|
376 | |
---|
377 | if ((RTC_Format == LL_RTC_FORMAT_BIN) && ((RTC_DateStruct->Month & 0x10U) == 0x10U)) |
---|
378 | { |
---|
379 | RTC_DateStruct->Month = (RTC_DateStruct->Month & (uint8_t)~(0x10U)) + 0x0AU; |
---|
380 | } |
---|
381 | if (RTC_Format == LL_RTC_FORMAT_BIN) |
---|
382 | { |
---|
383 | assert_param(IS_LL_RTC_YEAR(RTC_DateStruct->Year)); |
---|
384 | assert_param(IS_LL_RTC_MONTH(RTC_DateStruct->Month)); |
---|
385 | assert_param(IS_LL_RTC_DAY(RTC_DateStruct->Day)); |
---|
386 | } |
---|
387 | else |
---|
388 | { |
---|
389 | assert_param(IS_LL_RTC_YEAR(__LL_RTC_CONVERT_BCD2BIN(RTC_DateStruct->Year))); |
---|
390 | assert_param(IS_LL_RTC_MONTH(__LL_RTC_CONVERT_BCD2BIN(RTC_DateStruct->Month))); |
---|
391 | assert_param(IS_LL_RTC_DAY(__LL_RTC_CONVERT_BCD2BIN(RTC_DateStruct->Day))); |
---|
392 | } |
---|
393 | assert_param(IS_LL_RTC_WEEKDAY(RTC_DateStruct->WeekDay)); |
---|
394 | |
---|
395 | /* Disable the write protection for RTC registers */ |
---|
396 | LL_RTC_DisableWriteProtection(RTCx); |
---|
397 | |
---|
398 | /* Set Initialization mode */ |
---|
399 | if (LL_RTC_EnterInitMode(RTCx) != ERROR) |
---|
400 | { |
---|
401 | /* Check the input parameters format */ |
---|
402 | if (RTC_Format != LL_RTC_FORMAT_BIN) |
---|
403 | { |
---|
404 | LL_RTC_DATE_Config(RTCx, RTC_DateStruct->WeekDay, RTC_DateStruct->Day, RTC_DateStruct->Month, RTC_DateStruct->Year); |
---|
405 | } |
---|
406 | else |
---|
407 | { |
---|
408 | LL_RTC_DATE_Config(RTCx, RTC_DateStruct->WeekDay, __LL_RTC_CONVERT_BIN2BCD(RTC_DateStruct->Day), |
---|
409 | __LL_RTC_CONVERT_BIN2BCD(RTC_DateStruct->Month), __LL_RTC_CONVERT_BIN2BCD(RTC_DateStruct->Year)); |
---|
410 | } |
---|
411 | |
---|
412 | /* Exit Initialization mode */ |
---|
413 | LL_RTC_DisableInitMode(RTC); |
---|
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 | */ |
---|
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 | */ |
---|
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 | */ |
---|
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 | */ |
---|
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 | */ |
---|
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 | */ |
---|
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 | */ |
---|
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 | */ |
---|
805 | ErrorStatus LL_RTC_WaitForSynchro(RTC_TypeDef *RTCx) |
---|
806 | { |
---|
807 | __IO uint32_t timeout = RTC_SYNCHRO_TIMEOUT; |
---|
808 | ErrorStatus status = SUCCESS; |
---|
809 | uint32_t tmp; |
---|
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 != 0U)) |
---|
820 | { |
---|
821 | if (LL_SYSTICK_IsActiveCounterFlag() == 1U) |
---|
822 | { |
---|
823 | timeout--; |
---|
824 | } |
---|
825 | tmp = LL_RTC_IsActiveFlag_RS(RTCx); |
---|
826 | if (timeout == 0U) |
---|
827 | { |
---|
828 | status = ERROR; |
---|
829 | } |
---|
830 | } |
---|
831 | |
---|
832 | if (status != ERROR) |
---|
833 | { |
---|
834 | timeout = RTC_SYNCHRO_TIMEOUT; |
---|
835 | tmp = LL_RTC_IsActiveFlag_RS(RTCx); |
---|
836 | while ((timeout != 0U) && (tmp != 1U)) |
---|
837 | { |
---|
838 | if (LL_SYSTICK_IsActiveCounterFlag() == 1U) |
---|
839 | { |
---|
840 | timeout--; |
---|
841 | } |
---|
842 | tmp = LL_RTC_IsActiveFlag_RS(RTCx); |
---|
843 | if (timeout == 0U) |
---|
844 | { |
---|
845 | status = ERROR; |
---|
846 | } |
---|
847 | } |
---|
848 | } |
---|
849 | |
---|
850 | return (status); |
---|
851 | } |
---|
852 | |
---|
853 | /** |
---|
854 | * @} |
---|
855 | */ |
---|
856 | |
---|
857 | /** |
---|
858 | * @} |
---|
859 | */ |
---|
860 | |
---|
861 | /** |
---|
862 | * @} |
---|
863 | */ |
---|
864 | |
---|
865 | #endif /* defined(RTC) */ |
---|
866 | |
---|
867 | /** |
---|
868 | * @} |
---|
869 | */ |
---|
870 | |
---|
871 | #endif /* USE_FULL_LL_DRIVER */ |
---|
872 | |
---|
873 | /************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/ |
---|