Janek Mann / mbed-src-openwear

mbed library sources modified for open wear

Dependents:   openwear-lifelogger-example

Fork of mbed-src by mbed official

targets/cmsis/TARGET_STM/TARGET_NUCLEO_F103RB/stm32f10x_rtc.c@310:6188e0254baa, 2014-09-16 (annotated)

Committer:
janekm
Date:
Tue Sep 16 22:42:01 2014 +0000
Revision:
310:6188e0254baa
Parent:
84:f54042cbc282 
N/A

Who changed what in which revision?

UserRevisionLine numberNew contents of line
mbed_official 52:a51c77007319 1 /**
mbed_official 52:a51c77007319 2 ******************************************************************************
mbed_official 52:a51c77007319 3 * @file stm32f10x_rtc.c
mbed_official 52:a51c77007319 4 * @author MCD Application Team
mbed_official 84:f54042cbc282 5 * @version V3.6.1
mbed_official 84:f54042cbc282 6 * @date 05-March-2012
mbed_official 52:a51c77007319 7 * @brief This file provides all the RTC firmware functions.
mbed_official 70:c1fbde68b492 8 *******************************************************************************
mbed_official 70:c1fbde68b492 9 * Copyright (c) 2014, STMicroelectronics
mbed_official 70:c1fbde68b492 10 * All rights reserved.
mbed_official 70:c1fbde68b492 11 *
mbed_official 70:c1fbde68b492 12 * Redistribution and use in source and binary forms, with or without
mbed_official 70:c1fbde68b492 13 * modification, are permitted provided that the following conditions are met:
mbed_official 70:c1fbde68b492 14 *
mbed_official 70:c1fbde68b492 15 * 1. Redistributions of source code must retain the above copyright notice,
mbed_official 70:c1fbde68b492 16 * this list of conditions and the following disclaimer.
mbed_official 70:c1fbde68b492 17 * 2. Redistributions in binary form must reproduce the above copyright notice,
mbed_official 70:c1fbde68b492 18 * this list of conditions and the following disclaimer in the documentation
mbed_official 70:c1fbde68b492 19 * and/or other materials provided with the distribution.
mbed_official 70:c1fbde68b492 20 * 3. Neither the name of STMicroelectronics nor the names of its contributors
mbed_official 70:c1fbde68b492 21 * may be used to endorse or promote products derived from this software
mbed_official 70:c1fbde68b492 22 * without specific prior written permission.
mbed_official 70:c1fbde68b492 23 *
mbed_official 70:c1fbde68b492 24 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
mbed_official 70:c1fbde68b492 25 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
mbed_official 70:c1fbde68b492 26 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
mbed_official 70:c1fbde68b492 27 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
mbed_official 70:c1fbde68b492 28 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
mbed_official 70:c1fbde68b492 29 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
mbed_official 70:c1fbde68b492 30 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
mbed_official 70:c1fbde68b492 31 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
mbed_official 70:c1fbde68b492 32 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
mbed_official 70:c1fbde68b492 33 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
mbed_official 70:c1fbde68b492 34 *******************************************************************************
mbed_official 70:c1fbde68b492 35 */
mbed_official 52:a51c77007319 36
mbed_official 52:a51c77007319 37 /* Includes ------------------------------------------------------------------*/
mbed_official 52:a51c77007319 38 #include "stm32f10x_rtc.h"
mbed_official 52:a51c77007319 39
mbed_official 52:a51c77007319 40 /** @addtogroup STM32F10x_StdPeriph_Driver
mbed_official 52:a51c77007319 41 * @{
mbed_official 52:a51c77007319 42 */
mbed_official 52:a51c77007319 43
mbed_official 52:a51c77007319 44 /** @defgroup RTC
mbed_official 52:a51c77007319 45 * @brief RTC driver modules
mbed_official 52:a51c77007319 46 * @{
mbed_official 52:a51c77007319 47 */
mbed_official 52:a51c77007319 48
mbed_official 52:a51c77007319 49 /** @defgroup RTC_Private_TypesDefinitions
mbed_official 52:a51c77007319 50 * @{
mbed_official 52:a51c77007319 51 */
mbed_official 52:a51c77007319 52 /**
mbed_official 52:a51c77007319 53 * @}
mbed_official 52:a51c77007319 54 */
mbed_official 52:a51c77007319 55
mbed_official 52:a51c77007319 56 /** @defgroup RTC_Private_Defines
mbed_official 52:a51c77007319 57 * @{
mbed_official 52:a51c77007319 58 */
mbed_official 52:a51c77007319 59 #define RTC_LSB_MASK ((uint32_t)0x0000FFFF) /*!< RTC LSB Mask */
mbed_official 52:a51c77007319 60 #define PRLH_MSB_MASK ((uint32_t)0x000F0000) /*!< RTC Prescaler MSB Mask */
mbed_official 52:a51c77007319 61
mbed_official 52:a51c77007319 62 /**
mbed_official 52:a51c77007319 63 * @}
mbed_official 52:a51c77007319 64 */
mbed_official 52:a51c77007319 65
mbed_official 52:a51c77007319 66 /** @defgroup RTC_Private_Macros
mbed_official 52:a51c77007319 67 * @{
mbed_official 52:a51c77007319 68 */
mbed_official 52:a51c77007319 69
mbed_official 52:a51c77007319 70 /**
mbed_official 52:a51c77007319 71 * @}
mbed_official 52:a51c77007319 72 */
mbed_official 52:a51c77007319 73
mbed_official 52:a51c77007319 74 /** @defgroup RTC_Private_Variables
mbed_official 52:a51c77007319 75 * @{
mbed_official 52:a51c77007319 76 */
mbed_official 52:a51c77007319 77
mbed_official 52:a51c77007319 78 /**
mbed_official 52:a51c77007319 79 * @}
mbed_official 52:a51c77007319 80 */
mbed_official 52:a51c77007319 81
mbed_official 52:a51c77007319 82 /** @defgroup RTC_Private_FunctionPrototypes
mbed_official 52:a51c77007319 83 * @{
mbed_official 52:a51c77007319 84 */
mbed_official 52:a51c77007319 85
mbed_official 52:a51c77007319 86 /**
mbed_official 52:a51c77007319 87 * @}
mbed_official 52:a51c77007319 88 */
mbed_official 52:a51c77007319 89
mbed_official 52:a51c77007319 90 /** @defgroup RTC_Private_Functions
mbed_official 52:a51c77007319 91 * @{
mbed_official 52:a51c77007319 92 */
mbed_official 52:a51c77007319 93
mbed_official 52:a51c77007319 94 /**
mbed_official 52:a51c77007319 95 * @brief Enables or disables the specified RTC interrupts.
mbed_official 52:a51c77007319 96 * @param RTC_IT: specifies the RTC interrupts sources to be enabled or disabled.
mbed_official 52:a51c77007319 97 * This parameter can be any combination of the following values:
mbed_official 52:a51c77007319 98 * @arg RTC_IT_OW: Overflow interrupt
mbed_official 52:a51c77007319 99 * @arg RTC_IT_ALR: Alarm interrupt
mbed_official 52:a51c77007319 100 * @arg RTC_IT_SEC: Second interrupt
mbed_official 52:a51c77007319 101 * @param NewState: new state of the specified RTC interrupts.
mbed_official 52:a51c77007319 102 * This parameter can be: ENABLE or DISABLE.
mbed_official 52:a51c77007319 103 * @retval None
mbed_official 52:a51c77007319 104 */
mbed_official 52:a51c77007319 105 void RTC_ITConfig(uint16_t RTC_IT, FunctionalState NewState)
mbed_official 52:a51c77007319 106 {
mbed_official 52:a51c77007319 107 /* Check the parameters */
mbed_official 52:a51c77007319 108 assert_param(IS_RTC_IT(RTC_IT));
mbed_official 52:a51c77007319 109 assert_param(IS_FUNCTIONAL_STATE(NewState));
mbed_official 52:a51c77007319 110
mbed_official 52:a51c77007319 111 if (NewState != DISABLE)
mbed_official 52:a51c77007319 112 {
mbed_official 52:a51c77007319 113 RTC->CRH |= RTC_IT;
mbed_official 52:a51c77007319 114 }
mbed_official 52:a51c77007319 115 else
mbed_official 52:a51c77007319 116 {
mbed_official 52:a51c77007319 117 RTC->CRH &= (uint16_t)~RTC_IT;
mbed_official 52:a51c77007319 118 }
mbed_official 52:a51c77007319 119 }
mbed_official 52:a51c77007319 120
mbed_official 52:a51c77007319 121 /**
mbed_official 52:a51c77007319 122 * @brief Enters the RTC configuration mode.
mbed_official 52:a51c77007319 123 * @param None
mbed_official 52:a51c77007319 124 * @retval None
mbed_official 52:a51c77007319 125 */
mbed_official 52:a51c77007319 126 void RTC_EnterConfigMode(void)
mbed_official 52:a51c77007319 127 {
mbed_official 52:a51c77007319 128 /* Set the CNF flag to enter in the Configuration Mode */
mbed_official 52:a51c77007319 129 RTC->CRL |= RTC_CRL_CNF;
mbed_official 52:a51c77007319 130 }
mbed_official 52:a51c77007319 131
mbed_official 52:a51c77007319 132 /**
mbed_official 52:a51c77007319 133 * @brief Exits from the RTC configuration mode.
mbed_official 52:a51c77007319 134 * @param None
mbed_official 52:a51c77007319 135 * @retval None
mbed_official 52:a51c77007319 136 */
mbed_official 52:a51c77007319 137 void RTC_ExitConfigMode(void)
mbed_official 52:a51c77007319 138 {
mbed_official 52:a51c77007319 139 /* Reset the CNF flag to exit from the Configuration Mode */
mbed_official 52:a51c77007319 140 RTC->CRL &= (uint16_t)~((uint16_t)RTC_CRL_CNF);
mbed_official 52:a51c77007319 141 }
mbed_official 52:a51c77007319 142
mbed_official 52:a51c77007319 143 /**
mbed_official 52:a51c77007319 144 * @brief Gets the RTC counter value.
mbed_official 52:a51c77007319 145 * @param None
mbed_official 52:a51c77007319 146 * @retval RTC counter value.
mbed_official 52:a51c77007319 147 */
mbed_official 52:a51c77007319 148 uint32_t RTC_GetCounter(void)
mbed_official 52:a51c77007319 149 {
mbed_official 84:f54042cbc282 150 uint16_t high1 = 0, high2 = 0, low = 0;
mbed_official 84:f54042cbc282 151
mbed_official 84:f54042cbc282 152 high1 = RTC->CNTH;
mbed_official 84:f54042cbc282 153 low = RTC->CNTL;
mbed_official 84:f54042cbc282 154 high2 = RTC->CNTH;
mbed_official 84:f54042cbc282 155
mbed_official 84:f54042cbc282 156 if (high1 != high2)
mbed_official 84:f54042cbc282 157 { /* In this case the counter roll over during reading of CNTL and CNTH registers,
mbed_official 84:f54042cbc282 158 read again CNTL register then return the counter value */
mbed_official 84:f54042cbc282 159 return (((uint32_t) high2 << 16 ) | RTC->CNTL);
mbed_official 84:f54042cbc282 160 }
mbed_official 84:f54042cbc282 161 else
mbed_official 84:f54042cbc282 162 { /* No counter roll over during reading of CNTL and CNTH registers, counter
mbed_official 84:f54042cbc282 163 value is equal to first value of CNTL and CNTH */
mbed_official 84:f54042cbc282 164 return (((uint32_t) high1 << 16 ) | low);
mbed_official 84:f54042cbc282 165 }
mbed_official 52:a51c77007319 166 }
mbed_official 52:a51c77007319 167
mbed_official 52:a51c77007319 168 /**
mbed_official 52:a51c77007319 169 * @brief Sets the RTC counter value.
mbed_official 52:a51c77007319 170 * @param CounterValue: RTC counter new value.
mbed_official 52:a51c77007319 171 * @retval None
mbed_official 52:a51c77007319 172 */
mbed_official 52:a51c77007319 173 void RTC_SetCounter(uint32_t CounterValue)
mbed_official 52:a51c77007319 174 {
mbed_official 52:a51c77007319 175 RTC_EnterConfigMode();
mbed_official 52:a51c77007319 176 /* Set RTC COUNTER MSB word */
mbed_official 52:a51c77007319 177 RTC->CNTH = CounterValue >> 16;
mbed_official 52:a51c77007319 178 /* Set RTC COUNTER LSB word */
mbed_official 52:a51c77007319 179 RTC->CNTL = (CounterValue & RTC_LSB_MASK);
mbed_official 52:a51c77007319 180 RTC_ExitConfigMode();
mbed_official 52:a51c77007319 181 }
mbed_official 52:a51c77007319 182
mbed_official 52:a51c77007319 183 /**
mbed_official 52:a51c77007319 184 * @brief Sets the RTC prescaler value.
mbed_official 52:a51c77007319 185 * @param PrescalerValue: RTC prescaler new value.
mbed_official 52:a51c77007319 186 * @retval None
mbed_official 52:a51c77007319 187 */
mbed_official 52:a51c77007319 188 void RTC_SetPrescaler(uint32_t PrescalerValue)
mbed_official 52:a51c77007319 189 {
mbed_official 52:a51c77007319 190 /* Check the parameters */
mbed_official 52:a51c77007319 191 assert_param(IS_RTC_PRESCALER(PrescalerValue));
mbed_official 52:a51c77007319 192
mbed_official 52:a51c77007319 193 RTC_EnterConfigMode();
mbed_official 52:a51c77007319 194 /* Set RTC PRESCALER MSB word */
mbed_official 52:a51c77007319 195 RTC->PRLH = (PrescalerValue & PRLH_MSB_MASK) >> 16;
mbed_official 52:a51c77007319 196 /* Set RTC PRESCALER LSB word */
mbed_official 52:a51c77007319 197 RTC->PRLL = (PrescalerValue & RTC_LSB_MASK);
mbed_official 52:a51c77007319 198 RTC_ExitConfigMode();
mbed_official 52:a51c77007319 199 }
mbed_official 52:a51c77007319 200
mbed_official 52:a51c77007319 201 /**
mbed_official 52:a51c77007319 202 * @brief Sets the RTC alarm value.
mbed_official 52:a51c77007319 203 * @param AlarmValue: RTC alarm new value.
mbed_official 52:a51c77007319 204 * @retval None
mbed_official 52:a51c77007319 205 */
mbed_official 52:a51c77007319 206 void RTC_SetAlarm(uint32_t AlarmValue)
mbed_official 52:a51c77007319 207 {
mbed_official 52:a51c77007319 208 RTC_EnterConfigMode();
mbed_official 52:a51c77007319 209 /* Set the ALARM MSB word */
mbed_official 52:a51c77007319 210 RTC->ALRH = AlarmValue >> 16;
mbed_official 52:a51c77007319 211 /* Set the ALARM LSB word */
mbed_official 52:a51c77007319 212 RTC->ALRL = (AlarmValue & RTC_LSB_MASK);
mbed_official 52:a51c77007319 213 RTC_ExitConfigMode();
mbed_official 52:a51c77007319 214 }
mbed_official 52:a51c77007319 215
mbed_official 52:a51c77007319 216 /**
mbed_official 52:a51c77007319 217 * @brief Gets the RTC divider value.
mbed_official 52:a51c77007319 218 * @param None
mbed_official 52:a51c77007319 219 * @retval RTC Divider value.
mbed_official 52:a51c77007319 220 */
mbed_official 52:a51c77007319 221 uint32_t RTC_GetDivider(void)
mbed_official 52:a51c77007319 222 {
mbed_official 52:a51c77007319 223 uint32_t tmp = 0x00;
mbed_official 52:a51c77007319 224 tmp = ((uint32_t)RTC->DIVH & (uint32_t)0x000F) << 16;
mbed_official 52:a51c77007319 225 tmp |= RTC->DIVL;
mbed_official 52:a51c77007319 226 return tmp;
mbed_official 52:a51c77007319 227 }
mbed_official 52:a51c77007319 228
mbed_official 52:a51c77007319 229 /**
mbed_official 52:a51c77007319 230 * @brief Waits until last write operation on RTC registers has finished.
mbed_official 52:a51c77007319 231 * @note This function must be called before any write to RTC registers.
mbed_official 52:a51c77007319 232 * @param None
mbed_official 52:a51c77007319 233 * @retval None
mbed_official 52:a51c77007319 234 */
mbed_official 52:a51c77007319 235 void RTC_WaitForLastTask(void)
mbed_official 52:a51c77007319 236 {
mbed_official 52:a51c77007319 237 /* Loop until RTOFF flag is set */
mbed_official 52:a51c77007319 238 while ((RTC->CRL & RTC_FLAG_RTOFF) == (uint16_t)RESET)
mbed_official 52:a51c77007319 239 {
mbed_official 52:a51c77007319 240 }
mbed_official 52:a51c77007319 241 }
mbed_official 52:a51c77007319 242
mbed_official 52:a51c77007319 243 /**
mbed_official 52:a51c77007319 244 * @brief Waits until the RTC registers (RTC_CNT, RTC_ALR and RTC_PRL)
mbed_official 52:a51c77007319 245 * are synchronized with RTC APB clock.
mbed_official 52:a51c77007319 246 * @note This function must be called before any read operation after an APB reset
mbed_official 52:a51c77007319 247 * or an APB clock stop.
mbed_official 52:a51c77007319 248 * @param None
mbed_official 52:a51c77007319 249 * @retval None
mbed_official 52:a51c77007319 250 */
mbed_official 52:a51c77007319 251 void RTC_WaitForSynchro(void)
mbed_official 52:a51c77007319 252 {
mbed_official 52:a51c77007319 253 /* Clear RSF flag */
mbed_official 52:a51c77007319 254 RTC->CRL &= (uint16_t)~RTC_FLAG_RSF;
mbed_official 52:a51c77007319 255 /* Loop until RSF flag is set */
mbed_official 52:a51c77007319 256 while ((RTC->CRL & RTC_FLAG_RSF) == (uint16_t)RESET)
mbed_official 52:a51c77007319 257 {
mbed_official 52:a51c77007319 258 }
mbed_official 52:a51c77007319 259 }
mbed_official 52:a51c77007319 260
mbed_official 52:a51c77007319 261 /**
mbed_official 52:a51c77007319 262 * @brief Checks whether the specified RTC flag is set or not.
mbed_official 52:a51c77007319 263 * @param RTC_FLAG: specifies the flag to check.
mbed_official 52:a51c77007319 264 * This parameter can be one the following values:
mbed_official 52:a51c77007319 265 * @arg RTC_FLAG_RTOFF: RTC Operation OFF flag
mbed_official 52:a51c77007319 266 * @arg RTC_FLAG_RSF: Registers Synchronized flag
mbed_official 52:a51c77007319 267 * @arg RTC_FLAG_OW: Overflow flag
mbed_official 52:a51c77007319 268 * @arg RTC_FLAG_ALR: Alarm flag
mbed_official 52:a51c77007319 269 * @arg RTC_FLAG_SEC: Second flag
mbed_official 52:a51c77007319 270 * @retval The new state of RTC_FLAG (SET or RESET).
mbed_official 52:a51c77007319 271 */
mbed_official 52:a51c77007319 272 FlagStatus RTC_GetFlagStatus(uint16_t RTC_FLAG)
mbed_official 52:a51c77007319 273 {
mbed_official 52:a51c77007319 274 FlagStatus bitstatus = RESET;
mbed_official 52:a51c77007319 275
mbed_official 52:a51c77007319 276 /* Check the parameters */
mbed_official 52:a51c77007319 277 assert_param(IS_RTC_GET_FLAG(RTC_FLAG));
mbed_official 52:a51c77007319 278
mbed_official 52:a51c77007319 279 if ((RTC->CRL & RTC_FLAG) != (uint16_t)RESET)
mbed_official 52:a51c77007319 280 {
mbed_official 52:a51c77007319 281 bitstatus = SET;
mbed_official 52:a51c77007319 282 }
mbed_official 52:a51c77007319 283 else
mbed_official 52:a51c77007319 284 {
mbed_official 52:a51c77007319 285 bitstatus = RESET;
mbed_official 52:a51c77007319 286 }
mbed_official 52:a51c77007319 287 return bitstatus;
mbed_official 52:a51c77007319 288 }
mbed_official 52:a51c77007319 289
mbed_official 52:a51c77007319 290 /**
mbed_official 52:a51c77007319 291 * @brief Clears the RTC's pending flags.
mbed_official 52:a51c77007319 292 * @param RTC_FLAG: specifies the flag to clear.
mbed_official 52:a51c77007319 293 * This parameter can be any combination of the following values:
mbed_official 52:a51c77007319 294 * @arg RTC_FLAG_RSF: Registers Synchronized flag. This flag is cleared only after
mbed_official 52:a51c77007319 295 * an APB reset or an APB Clock stop.
mbed_official 52:a51c77007319 296 * @arg RTC_FLAG_OW: Overflow flag
mbed_official 52:a51c77007319 297 * @arg RTC_FLAG_ALR: Alarm flag
mbed_official 52:a51c77007319 298 * @arg RTC_FLAG_SEC: Second flag
mbed_official 52:a51c77007319 299 * @retval None
mbed_official 52:a51c77007319 300 */
mbed_official 52:a51c77007319 301 void RTC_ClearFlag(uint16_t RTC_FLAG)
mbed_official 52:a51c77007319 302 {
mbed_official 52:a51c77007319 303 /* Check the parameters */
mbed_official 52:a51c77007319 304 assert_param(IS_RTC_CLEAR_FLAG(RTC_FLAG));
mbed_official 52:a51c77007319 305
mbed_official 52:a51c77007319 306 /* Clear the corresponding RTC flag */
mbed_official 52:a51c77007319 307 RTC->CRL &= (uint16_t)~RTC_FLAG;
mbed_official 52:a51c77007319 308 }
mbed_official 52:a51c77007319 309
mbed_official 52:a51c77007319 310 /**
mbed_official 52:a51c77007319 311 * @brief Checks whether the specified RTC interrupt has occurred or not.
mbed_official 52:a51c77007319 312 * @param RTC_IT: specifies the RTC interrupts sources to check.
mbed_official 52:a51c77007319 313 * This parameter can be one of the following values:
mbed_official 52:a51c77007319 314 * @arg RTC_IT_OW: Overflow interrupt
mbed_official 52:a51c77007319 315 * @arg RTC_IT_ALR: Alarm interrupt
mbed_official 52:a51c77007319 316 * @arg RTC_IT_SEC: Second interrupt
mbed_official 52:a51c77007319 317 * @retval The new state of the RTC_IT (SET or RESET).
mbed_official 52:a51c77007319 318 */
mbed_official 52:a51c77007319 319 ITStatus RTC_GetITStatus(uint16_t RTC_IT)
mbed_official 52:a51c77007319 320 {
mbed_official 52:a51c77007319 321 ITStatus bitstatus = RESET;
mbed_official 52:a51c77007319 322 /* Check the parameters */
mbed_official 52:a51c77007319 323 assert_param(IS_RTC_GET_IT(RTC_IT));
mbed_official 52:a51c77007319 324
mbed_official 52:a51c77007319 325 bitstatus = (ITStatus)(RTC->CRL & RTC_IT);
mbed_official 52:a51c77007319 326 if (((RTC->CRH & RTC_IT) != (uint16_t)RESET) && (bitstatus != (uint16_t)RESET))
mbed_official 52:a51c77007319 327 {
mbed_official 52:a51c77007319 328 bitstatus = SET;
mbed_official 52:a51c77007319 329 }
mbed_official 52:a51c77007319 330 else
mbed_official 52:a51c77007319 331 {
mbed_official 52:a51c77007319 332 bitstatus = RESET;
mbed_official 52:a51c77007319 333 }
mbed_official 52:a51c77007319 334 return bitstatus;
mbed_official 52:a51c77007319 335 }
mbed_official 52:a51c77007319 336
mbed_official 52:a51c77007319 337 /**
mbed_official 52:a51c77007319 338 * @brief Clears the RTC's interrupt pending bits.
mbed_official 52:a51c77007319 339 * @param RTC_IT: specifies the interrupt pending bit to clear.
mbed_official 52:a51c77007319 340 * This parameter can be any combination of the following values:
mbed_official 52:a51c77007319 341 * @arg RTC_IT_OW: Overflow interrupt
mbed_official 52:a51c77007319 342 * @arg RTC_IT_ALR: Alarm interrupt
mbed_official 52:a51c77007319 343 * @arg RTC_IT_SEC: Second interrupt
mbed_official 52:a51c77007319 344 * @retval None
mbed_official 52:a51c77007319 345 */
mbed_official 52:a51c77007319 346 void RTC_ClearITPendingBit(uint16_t RTC_IT)
mbed_official 52:a51c77007319 347 {
mbed_official 52:a51c77007319 348 /* Check the parameters */
mbed_official 52:a51c77007319 349 assert_param(IS_RTC_IT(RTC_IT));
mbed_official 52:a51c77007319 350
mbed_official 52:a51c77007319 351 /* Clear the corresponding RTC pending bit */
mbed_official 52:a51c77007319 352 RTC->CRL &= (uint16_t)~RTC_IT;
mbed_official 52:a51c77007319 353 }
mbed_official 52:a51c77007319 354
mbed_official 52:a51c77007319 355 /**
mbed_official 52:a51c77007319 356 * @}
mbed_official 52:a51c77007319 357 */
mbed_official 52:a51c77007319 358
mbed_official 52:a51c77007319 359 /**
mbed_official 52:a51c77007319 360 * @}
mbed_official 52:a51c77007319 361 */
mbed_official 52:a51c77007319 362
mbed_official 52:a51c77007319 363 /**
mbed_official 52:a51c77007319 364 * @}
mbed_official 52:a51c77007319 365 */
mbed_official 52:a51c77007319 366
mbed_official 84:f54042cbc282 367 /************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/