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mbed SDK library sources

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Development branch of the mbed library sources. This library is kept in synch with the latest changes from the mbed SDK and it is not guaranteed to work.

If you are looking for a stable and tested release, please import one of the official mbed library releases:

Import librarymbed

The official Mbed 2 C/C++ SDK provides the software platform and libraries to build your applications.

Last commit 20 Feb 2019 by mbed official

targets/cmsis/TARGET_STM/TARGET_NUCLEO_F103RB/stm32f10x_rtc.c@84:f54042cbc282, 2014-02-03 (annotated)

Committer:
mbed_official
Date:
Mon Feb 03 09:30:05 2014 +0000
Revision:
84:f54042cbc282
Parent:
70:c1fbde68b492 
Synchronized with git revision bbbd8699601c42149ccf0c37bc42bb6856ccc4c6



Full URL: https://github.com/mbedmicro/mbed/commit/bbbd8699601c42149ccf0c37bc42bb6856ccc4c6/



[NUCLEO_L152RE/F030_R8] SPI, I2C, Ticker, PWM updates

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****/