shao ziyang / mbed-src-kl05

mbed library sources

Dependents:   frdm_kl05z_gpio_test

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targets/cmsis/TARGET_STM/TARGET_DISCO_F100RB/stm32f10x_pwr.c@323:9e901b0a5aa1, 2014-09-13 (annotated)

Committer:
shaoziyang
Date:
Sat Sep 13 14:25:46 2014 +0000
Revision:
323:9e901b0a5aa1
Parent:
126:549ba18ddd81 
test with CLOCK_SETUP = 0

Who changed what in which revision?

UserRevisionLine numberNew contents of line
mbed_official 126:549ba18ddd81 1 /**
mbed_official 126:549ba18ddd81 2 ******************************************************************************
mbed_official 126:549ba18ddd81 3 * @file stm32f10x_pwr.c
mbed_official 126:549ba18ddd81 4 * @author MCD Application Team
mbed_official 126:549ba18ddd81 5 * @version V3.6.1
mbed_official 126:549ba18ddd81 6 * @date 05-March-2012
mbed_official 126:549ba18ddd81 7 * @brief This file provides all the PWR firmware functions.
mbed_official 126:549ba18ddd81 8 *******************************************************************************
mbed_official 126:549ba18ddd81 9 * Copyright (c) 2014, STMicroelectronics
mbed_official 126:549ba18ddd81 10 * All rights reserved.
mbed_official 126:549ba18ddd81 11 *
mbed_official 126:549ba18ddd81 12 * Redistribution and use in source and binary forms, with or without
mbed_official 126:549ba18ddd81 13 * modification, are permitted provided that the following conditions are met:
mbed_official 126:549ba18ddd81 14 *
mbed_official 126:549ba18ddd81 15 * 1. Redistributions of source code must retain the above copyright notice,
mbed_official 126:549ba18ddd81 16 * this list of conditions and the following disclaimer.
mbed_official 126:549ba18ddd81 17 * 2. Redistributions in binary form must reproduce the above copyright notice,
mbed_official 126:549ba18ddd81 18 * this list of conditions and the following disclaimer in the documentation
mbed_official 126:549ba18ddd81 19 * and/or other materials provided with the distribution.
mbed_official 126:549ba18ddd81 20 * 3. Neither the name of STMicroelectronics nor the names of its contributors
mbed_official 126:549ba18ddd81 21 * may be used to endorse or promote products derived from this software
mbed_official 126:549ba18ddd81 22 * without specific prior written permission.
mbed_official 126:549ba18ddd81 23 *
mbed_official 126:549ba18ddd81 24 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
mbed_official 126:549ba18ddd81 25 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
mbed_official 126:549ba18ddd81 26 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
mbed_official 126:549ba18ddd81 27 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
mbed_official 126:549ba18ddd81 28 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
mbed_official 126:549ba18ddd81 29 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
mbed_official 126:549ba18ddd81 30 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
mbed_official 126:549ba18ddd81 31 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
mbed_official 126:549ba18ddd81 32 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
mbed_official 126:549ba18ddd81 33 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
mbed_official 126:549ba18ddd81 34 *******************************************************************************
mbed_official 126:549ba18ddd81 35 */
mbed_official 126:549ba18ddd81 36
mbed_official 126:549ba18ddd81 37 /* Includes ------------------------------------------------------------------*/
mbed_official 126:549ba18ddd81 38 #include "stm32f10x_pwr.h"
mbed_official 126:549ba18ddd81 39 #include "stm32f10x_rcc.h"
mbed_official 126:549ba18ddd81 40
mbed_official 126:549ba18ddd81 41 /** @addtogroup STM32F10x_StdPeriph_Driver
mbed_official 126:549ba18ddd81 42 * @{
mbed_official 126:549ba18ddd81 43 */
mbed_official 126:549ba18ddd81 44
mbed_official 126:549ba18ddd81 45 /** @defgroup PWR
mbed_official 126:549ba18ddd81 46 * @brief PWR driver modules
mbed_official 126:549ba18ddd81 47 * @{
mbed_official 126:549ba18ddd81 48 */
mbed_official 126:549ba18ddd81 49
mbed_official 126:549ba18ddd81 50 /** @defgroup PWR_Private_TypesDefinitions
mbed_official 126:549ba18ddd81 51 * @{
mbed_official 126:549ba18ddd81 52 */
mbed_official 126:549ba18ddd81 53
mbed_official 126:549ba18ddd81 54 /**
mbed_official 126:549ba18ddd81 55 * @}
mbed_official 126:549ba18ddd81 56 */
mbed_official 126:549ba18ddd81 57
mbed_official 126:549ba18ddd81 58 /** @defgroup PWR_Private_Defines
mbed_official 126:549ba18ddd81 59 * @{
mbed_official 126:549ba18ddd81 60 */
mbed_official 126:549ba18ddd81 61
mbed_official 126:549ba18ddd81 62 /* --------- PWR registers bit address in the alias region ---------- */
mbed_official 126:549ba18ddd81 63 #define PWR_OFFSET (PWR_BASE - PERIPH_BASE)
mbed_official 126:549ba18ddd81 64
mbed_official 126:549ba18ddd81 65 /* --- CR Register ---*/
mbed_official 126:549ba18ddd81 66
mbed_official 126:549ba18ddd81 67 /* Alias word address of DBP bit */
mbed_official 126:549ba18ddd81 68 #define CR_OFFSET (PWR_OFFSET + 0x00)
mbed_official 126:549ba18ddd81 69 #define DBP_BitNumber 0x08
mbed_official 126:549ba18ddd81 70 #define CR_DBP_BB (PERIPH_BB_BASE + (CR_OFFSET * 32) + (DBP_BitNumber * 4))
mbed_official 126:549ba18ddd81 71
mbed_official 126:549ba18ddd81 72 /* Alias word address of PVDE bit */
mbed_official 126:549ba18ddd81 73 #define PVDE_BitNumber 0x04
mbed_official 126:549ba18ddd81 74 #define CR_PVDE_BB (PERIPH_BB_BASE + (CR_OFFSET * 32) + (PVDE_BitNumber * 4))
mbed_official 126:549ba18ddd81 75
mbed_official 126:549ba18ddd81 76 /* --- CSR Register ---*/
mbed_official 126:549ba18ddd81 77
mbed_official 126:549ba18ddd81 78 /* Alias word address of EWUP bit */
mbed_official 126:549ba18ddd81 79 #define CSR_OFFSET (PWR_OFFSET + 0x04)
mbed_official 126:549ba18ddd81 80 #define EWUP_BitNumber 0x08
mbed_official 126:549ba18ddd81 81 #define CSR_EWUP_BB (PERIPH_BB_BASE + (CSR_OFFSET * 32) + (EWUP_BitNumber * 4))
mbed_official 126:549ba18ddd81 82
mbed_official 126:549ba18ddd81 83 /* ------------------ PWR registers bit mask ------------------------ */
mbed_official 126:549ba18ddd81 84
mbed_official 126:549ba18ddd81 85 /* CR register bit mask */
mbed_official 126:549ba18ddd81 86 #define CR_DS_MASK ((uint32_t)0xFFFFFFFC)
mbed_official 126:549ba18ddd81 87 #define CR_PLS_MASK ((uint32_t)0xFFFFFF1F)
mbed_official 126:549ba18ddd81 88
mbed_official 126:549ba18ddd81 89
mbed_official 126:549ba18ddd81 90 /**
mbed_official 126:549ba18ddd81 91 * @}
mbed_official 126:549ba18ddd81 92 */
mbed_official 126:549ba18ddd81 93
mbed_official 126:549ba18ddd81 94 /** @defgroup PWR_Private_Macros
mbed_official 126:549ba18ddd81 95 * @{
mbed_official 126:549ba18ddd81 96 */
mbed_official 126:549ba18ddd81 97
mbed_official 126:549ba18ddd81 98 /**
mbed_official 126:549ba18ddd81 99 * @}
mbed_official 126:549ba18ddd81 100 */
mbed_official 126:549ba18ddd81 101
mbed_official 126:549ba18ddd81 102 /** @defgroup PWR_Private_Variables
mbed_official 126:549ba18ddd81 103 * @{
mbed_official 126:549ba18ddd81 104 */
mbed_official 126:549ba18ddd81 105
mbed_official 126:549ba18ddd81 106 /**
mbed_official 126:549ba18ddd81 107 * @}
mbed_official 126:549ba18ddd81 108 */
mbed_official 126:549ba18ddd81 109
mbed_official 126:549ba18ddd81 110 /** @defgroup PWR_Private_FunctionPrototypes
mbed_official 126:549ba18ddd81 111 * @{
mbed_official 126:549ba18ddd81 112 */
mbed_official 126:549ba18ddd81 113
mbed_official 126:549ba18ddd81 114 /**
mbed_official 126:549ba18ddd81 115 * @}
mbed_official 126:549ba18ddd81 116 */
mbed_official 126:549ba18ddd81 117
mbed_official 126:549ba18ddd81 118 /** @defgroup PWR_Private_Functions
mbed_official 126:549ba18ddd81 119 * @{
mbed_official 126:549ba18ddd81 120 */
mbed_official 126:549ba18ddd81 121
mbed_official 126:549ba18ddd81 122 /**
mbed_official 126:549ba18ddd81 123 * @brief Deinitializes the PWR peripheral registers to their default reset values.
mbed_official 126:549ba18ddd81 124 * @param None
mbed_official 126:549ba18ddd81 125 * @retval None
mbed_official 126:549ba18ddd81 126 */
mbed_official 126:549ba18ddd81 127 void PWR_DeInit(void)
mbed_official 126:549ba18ddd81 128 {
mbed_official 126:549ba18ddd81 129 RCC_APB1PeriphResetCmd(RCC_APB1Periph_PWR, ENABLE);
mbed_official 126:549ba18ddd81 130 RCC_APB1PeriphResetCmd(RCC_APB1Periph_PWR, DISABLE);
mbed_official 126:549ba18ddd81 131 }
mbed_official 126:549ba18ddd81 132
mbed_official 126:549ba18ddd81 133 /**
mbed_official 126:549ba18ddd81 134 * @brief Enables or disables access to the RTC and backup registers.
mbed_official 126:549ba18ddd81 135 * @param NewState: new state of the access to the RTC and backup registers.
mbed_official 126:549ba18ddd81 136 * This parameter can be: ENABLE or DISABLE.
mbed_official 126:549ba18ddd81 137 * @retval None
mbed_official 126:549ba18ddd81 138 */
mbed_official 126:549ba18ddd81 139 void PWR_BackupAccessCmd(FunctionalState NewState)
mbed_official 126:549ba18ddd81 140 {
mbed_official 126:549ba18ddd81 141 /* Check the parameters */
mbed_official 126:549ba18ddd81 142 assert_param(IS_FUNCTIONAL_STATE(NewState));
mbed_official 126:549ba18ddd81 143 *(__IO uint32_t *) CR_DBP_BB = (uint32_t)NewState;
mbed_official 126:549ba18ddd81 144 }
mbed_official 126:549ba18ddd81 145
mbed_official 126:549ba18ddd81 146 /**
mbed_official 126:549ba18ddd81 147 * @brief Enables or disables the Power Voltage Detector(PVD).
mbed_official 126:549ba18ddd81 148 * @param NewState: new state of the PVD.
mbed_official 126:549ba18ddd81 149 * This parameter can be: ENABLE or DISABLE.
mbed_official 126:549ba18ddd81 150 * @retval None
mbed_official 126:549ba18ddd81 151 */
mbed_official 126:549ba18ddd81 152 void PWR_PVDCmd(FunctionalState NewState)
mbed_official 126:549ba18ddd81 153 {
mbed_official 126:549ba18ddd81 154 /* Check the parameters */
mbed_official 126:549ba18ddd81 155 assert_param(IS_FUNCTIONAL_STATE(NewState));
mbed_official 126:549ba18ddd81 156 *(__IO uint32_t *) CR_PVDE_BB = (uint32_t)NewState;
mbed_official 126:549ba18ddd81 157 }
mbed_official 126:549ba18ddd81 158
mbed_official 126:549ba18ddd81 159 /**
mbed_official 126:549ba18ddd81 160 * @brief Configures the voltage threshold detected by the Power Voltage Detector(PVD).
mbed_official 126:549ba18ddd81 161 * @param PWR_PVDLevel: specifies the PVD detection level
mbed_official 126:549ba18ddd81 162 * This parameter can be one of the following values:
mbed_official 126:549ba18ddd81 163 * @arg PWR_PVDLevel_2V2: PVD detection level set to 2.2V
mbed_official 126:549ba18ddd81 164 * @arg PWR_PVDLevel_2V3: PVD detection level set to 2.3V
mbed_official 126:549ba18ddd81 165 * @arg PWR_PVDLevel_2V4: PVD detection level set to 2.4V
mbed_official 126:549ba18ddd81 166 * @arg PWR_PVDLevel_2V5: PVD detection level set to 2.5V
mbed_official 126:549ba18ddd81 167 * @arg PWR_PVDLevel_2V6: PVD detection level set to 2.6V
mbed_official 126:549ba18ddd81 168 * @arg PWR_PVDLevel_2V7: PVD detection level set to 2.7V
mbed_official 126:549ba18ddd81 169 * @arg PWR_PVDLevel_2V8: PVD detection level set to 2.8V
mbed_official 126:549ba18ddd81 170 * @arg PWR_PVDLevel_2V9: PVD detection level set to 2.9V
mbed_official 126:549ba18ddd81 171 * @retval None
mbed_official 126:549ba18ddd81 172 */
mbed_official 126:549ba18ddd81 173 void PWR_PVDLevelConfig(uint32_t PWR_PVDLevel)
mbed_official 126:549ba18ddd81 174 {
mbed_official 126:549ba18ddd81 175 uint32_t tmpreg = 0;
mbed_official 126:549ba18ddd81 176 /* Check the parameters */
mbed_official 126:549ba18ddd81 177 assert_param(IS_PWR_PVD_LEVEL(PWR_PVDLevel));
mbed_official 126:549ba18ddd81 178 tmpreg = PWR->CR;
mbed_official 126:549ba18ddd81 179 /* Clear PLS[7:5] bits */
mbed_official 126:549ba18ddd81 180 tmpreg &= CR_PLS_MASK;
mbed_official 126:549ba18ddd81 181 /* Set PLS[7:5] bits according to PWR_PVDLevel value */
mbed_official 126:549ba18ddd81 182 tmpreg |= PWR_PVDLevel;
mbed_official 126:549ba18ddd81 183 /* Store the new value */
mbed_official 126:549ba18ddd81 184 PWR->CR = tmpreg;
mbed_official 126:549ba18ddd81 185 }
mbed_official 126:549ba18ddd81 186
mbed_official 126:549ba18ddd81 187 /**
mbed_official 126:549ba18ddd81 188 * @brief Enables or disables the WakeUp Pin functionality.
mbed_official 126:549ba18ddd81 189 * @param NewState: new state of the WakeUp Pin functionality.
mbed_official 126:549ba18ddd81 190 * This parameter can be: ENABLE or DISABLE.
mbed_official 126:549ba18ddd81 191 * @retval None
mbed_official 126:549ba18ddd81 192 */
mbed_official 126:549ba18ddd81 193 void PWR_WakeUpPinCmd(FunctionalState NewState)
mbed_official 126:549ba18ddd81 194 {
mbed_official 126:549ba18ddd81 195 /* Check the parameters */
mbed_official 126:549ba18ddd81 196 assert_param(IS_FUNCTIONAL_STATE(NewState));
mbed_official 126:549ba18ddd81 197 *(__IO uint32_t *) CSR_EWUP_BB = (uint32_t)NewState;
mbed_official 126:549ba18ddd81 198 }
mbed_official 126:549ba18ddd81 199
mbed_official 126:549ba18ddd81 200 /**
mbed_official 126:549ba18ddd81 201 * @brief Enters STOP mode.
mbed_official 126:549ba18ddd81 202 * @param PWR_Regulator: specifies the regulator state in STOP mode.
mbed_official 126:549ba18ddd81 203 * This parameter can be one of the following values:
mbed_official 126:549ba18ddd81 204 * @arg PWR_Regulator_ON: STOP mode with regulator ON
mbed_official 126:549ba18ddd81 205 * @arg PWR_Regulator_LowPower: STOP mode with regulator in low power mode
mbed_official 126:549ba18ddd81 206 * @param PWR_STOPEntry: specifies if STOP mode in entered with WFI or WFE instruction.
mbed_official 126:549ba18ddd81 207 * This parameter can be one of the following values:
mbed_official 126:549ba18ddd81 208 * @arg PWR_STOPEntry_WFI: enter STOP mode with WFI instruction
mbed_official 126:549ba18ddd81 209 * @arg PWR_STOPEntry_WFE: enter STOP mode with WFE instruction
mbed_official 126:549ba18ddd81 210 * @retval None
mbed_official 126:549ba18ddd81 211 */
mbed_official 126:549ba18ddd81 212 void PWR_EnterSTOPMode(uint32_t PWR_Regulator, uint8_t PWR_STOPEntry)
mbed_official 126:549ba18ddd81 213 {
mbed_official 126:549ba18ddd81 214 uint32_t tmpreg = 0;
mbed_official 126:549ba18ddd81 215 /* Check the parameters */
mbed_official 126:549ba18ddd81 216 assert_param(IS_PWR_REGULATOR(PWR_Regulator));
mbed_official 126:549ba18ddd81 217 assert_param(IS_PWR_STOP_ENTRY(PWR_STOPEntry));
mbed_official 126:549ba18ddd81 218
mbed_official 126:549ba18ddd81 219 /* Select the regulator state in STOP mode ---------------------------------*/
mbed_official 126:549ba18ddd81 220 tmpreg = PWR->CR;
mbed_official 126:549ba18ddd81 221 /* Clear PDDS and LPDS bits */
mbed_official 126:549ba18ddd81 222 tmpreg &= CR_DS_MASK;
mbed_official 126:549ba18ddd81 223 /* Set LPDS bit according to PWR_Regulator value */
mbed_official 126:549ba18ddd81 224 tmpreg |= PWR_Regulator;
mbed_official 126:549ba18ddd81 225 /* Store the new value */
mbed_official 126:549ba18ddd81 226 PWR->CR = tmpreg;
mbed_official 126:549ba18ddd81 227 /* Set SLEEPDEEP bit of Cortex System Control Register */
mbed_official 126:549ba18ddd81 228 SCB->SCR |= SCB_SCR_SLEEPDEEP;
mbed_official 126:549ba18ddd81 229
mbed_official 126:549ba18ddd81 230 /* Select STOP mode entry --------------------------------------------------*/
mbed_official 126:549ba18ddd81 231 if(PWR_STOPEntry == PWR_STOPEntry_WFI)
mbed_official 126:549ba18ddd81 232 {
mbed_official 126:549ba18ddd81 233 /* Request Wait For Interrupt */
mbed_official 126:549ba18ddd81 234 __WFI();
mbed_official 126:549ba18ddd81 235 }
mbed_official 126:549ba18ddd81 236 else
mbed_official 126:549ba18ddd81 237 {
mbed_official 126:549ba18ddd81 238 /* Request Wait For Event */
mbed_official 126:549ba18ddd81 239 __WFE();
mbed_official 126:549ba18ddd81 240 }
mbed_official 126:549ba18ddd81 241
mbed_official 126:549ba18ddd81 242 /* Reset SLEEPDEEP bit of Cortex System Control Register */
mbed_official 126:549ba18ddd81 243 SCB->SCR &= (uint32_t)~((uint32_t)SCB_SCR_SLEEPDEEP);
mbed_official 126:549ba18ddd81 244 }
mbed_official 126:549ba18ddd81 245
mbed_official 126:549ba18ddd81 246 /**
mbed_official 126:549ba18ddd81 247 * @brief Enters STANDBY mode.
mbed_official 126:549ba18ddd81 248 * @param None
mbed_official 126:549ba18ddd81 249 * @retval None
mbed_official 126:549ba18ddd81 250 */
mbed_official 126:549ba18ddd81 251 void PWR_EnterSTANDBYMode(void)
mbed_official 126:549ba18ddd81 252 {
mbed_official 126:549ba18ddd81 253 /* Clear Wake-up flag */
mbed_official 126:549ba18ddd81 254 PWR->CR |= PWR_CR_CWUF;
mbed_official 126:549ba18ddd81 255 /* Select STANDBY mode */
mbed_official 126:549ba18ddd81 256 PWR->CR |= PWR_CR_PDDS;
mbed_official 126:549ba18ddd81 257 /* Set SLEEPDEEP bit of Cortex System Control Register */
mbed_official 126:549ba18ddd81 258 SCB->SCR |= SCB_SCR_SLEEPDEEP;
mbed_official 126:549ba18ddd81 259 /* This option is used to ensure that store operations are completed */
mbed_official 126:549ba18ddd81 260 #if defined ( __CC_ARM )
mbed_official 126:549ba18ddd81 261 __force_stores();
mbed_official 126:549ba18ddd81 262 #endif
mbed_official 126:549ba18ddd81 263 /* Request Wait For Interrupt */
mbed_official 126:549ba18ddd81 264 __WFI();
mbed_official 126:549ba18ddd81 265 }
mbed_official 126:549ba18ddd81 266
mbed_official 126:549ba18ddd81 267 /**
mbed_official 126:549ba18ddd81 268 * @brief Checks whether the specified PWR flag is set or not.
mbed_official 126:549ba18ddd81 269 * @param PWR_FLAG: specifies the flag to check.
mbed_official 126:549ba18ddd81 270 * This parameter can be one of the following values:
mbed_official 126:549ba18ddd81 271 * @arg PWR_FLAG_WU: Wake Up flag
mbed_official 126:549ba18ddd81 272 * @arg PWR_FLAG_SB: StandBy flag
mbed_official 126:549ba18ddd81 273 * @arg PWR_FLAG_PVDO: PVD Output
mbed_official 126:549ba18ddd81 274 * @retval The new state of PWR_FLAG (SET or RESET).
mbed_official 126:549ba18ddd81 275 */
mbed_official 126:549ba18ddd81 276 FlagStatus PWR_GetFlagStatus(uint32_t PWR_FLAG)
mbed_official 126:549ba18ddd81 277 {
mbed_official 126:549ba18ddd81 278 FlagStatus bitstatus = RESET;
mbed_official 126:549ba18ddd81 279 /* Check the parameters */
mbed_official 126:549ba18ddd81 280 assert_param(IS_PWR_GET_FLAG(PWR_FLAG));
mbed_official 126:549ba18ddd81 281
mbed_official 126:549ba18ddd81 282 if ((PWR->CSR & PWR_FLAG) != (uint32_t)RESET)
mbed_official 126:549ba18ddd81 283 {
mbed_official 126:549ba18ddd81 284 bitstatus = SET;
mbed_official 126:549ba18ddd81 285 }
mbed_official 126:549ba18ddd81 286 else
mbed_official 126:549ba18ddd81 287 {
mbed_official 126:549ba18ddd81 288 bitstatus = RESET;
mbed_official 126:549ba18ddd81 289 }
mbed_official 126:549ba18ddd81 290 /* Return the flag status */
mbed_official 126:549ba18ddd81 291 return bitstatus;
mbed_official 126:549ba18ddd81 292 }
mbed_official 126:549ba18ddd81 293
mbed_official 126:549ba18ddd81 294 /**
mbed_official 126:549ba18ddd81 295 * @brief Clears the PWR's pending flags.
mbed_official 126:549ba18ddd81 296 * @param PWR_FLAG: specifies the flag to clear.
mbed_official 126:549ba18ddd81 297 * This parameter can be one of the following values:
mbed_official 126:549ba18ddd81 298 * @arg PWR_FLAG_WU: Wake Up flag
mbed_official 126:549ba18ddd81 299 * @arg PWR_FLAG_SB: StandBy flag
mbed_official 126:549ba18ddd81 300 * @retval None
mbed_official 126:549ba18ddd81 301 */
mbed_official 126:549ba18ddd81 302 void PWR_ClearFlag(uint32_t PWR_FLAG)
mbed_official 126:549ba18ddd81 303 {
mbed_official 126:549ba18ddd81 304 /* Check the parameters */
mbed_official 126:549ba18ddd81 305 assert_param(IS_PWR_CLEAR_FLAG(PWR_FLAG));
mbed_official 126:549ba18ddd81 306
mbed_official 126:549ba18ddd81 307 PWR->CR |= PWR_FLAG << 2;
mbed_official 126:549ba18ddd81 308 }
mbed_official 126:549ba18ddd81 309
mbed_official 126:549ba18ddd81 310 /**
mbed_official 126:549ba18ddd81 311 * @}
mbed_official 126:549ba18ddd81 312 */
mbed_official 126:549ba18ddd81 313
mbed_official 126:549ba18ddd81 314 /**
mbed_official 126:549ba18ddd81 315 * @}
mbed_official 126:549ba18ddd81 316 */
mbed_official 126:549ba18ddd81 317
mbed_official 126:549ba18ddd81 318 /**
mbed_official 126:549ba18ddd81 319 * @}
mbed_official 126:549ba18ddd81 320 */
mbed_official 126:549ba18ddd81 321
mbed_official 126:549ba18ddd81 322 /************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/