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This library was superseded by mbed-dev - https://os.mbed.com/users/mbed_official/code/mbed-dev/.

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

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Last commit 20 Feb 2019 by mbed official

targets/cmsis/TARGET_STM/TARGET_STM32F4/stm32f4xx_hal_pwr_ex.c@613:bc40b8d2aec4, 2015-08-20 (annotated)

Committer:
mbed_official
Date:
Thu Aug 20 10:45:13 2015 +0100
Revision:
613:bc40b8d2aec4
Parent:
532:fe11edbda85c 
Synchronized with git revision 92ca8c7b60a283b6bb60eb65b183dac1599f0ade



Full URL: https://github.com/mbedmicro/mbed/commit/92ca8c7b60a283b6bb60eb65b183dac1599f0ade/



Nordic: update application start address in GCC linker script

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UserRevisionLine numberNew contents of line
mbed_official 235:685d5f11838f 1 /**
mbed_official 235:685d5f11838f 2 ******************************************************************************
mbed_official 235:685d5f11838f 3 * @file stm32f4xx_hal_pwr_ex.c
mbed_official 235:685d5f11838f 4 * @author MCD Application Team
mbed_official 613:bc40b8d2aec4 5 * @version V1.3.2
mbed_official 613:bc40b8d2aec4 6 * @date 26-June-2015
mbed_official 235:685d5f11838f 7 * @brief Extended PWR HAL module driver.
mbed_official 235:685d5f11838f 8 * This file provides firmware functions to manage the following
mbed_official 235:685d5f11838f 9 * functionalities of PWR extension peripheral:
mbed_official 235:685d5f11838f 10 * + Peripheral Extended features functions
mbed_official 235:685d5f11838f 11 *
mbed_official 235:685d5f11838f 12 ******************************************************************************
mbed_official 235:685d5f11838f 13 * @attention
mbed_official 235:685d5f11838f 14 *
mbed_official 532:fe11edbda85c 15 * <h2><center>&copy; COPYRIGHT(c) 2015 STMicroelectronics</center></h2>
mbed_official 235:685d5f11838f 16 *
mbed_official 235:685d5f11838f 17 * Redistribution and use in source and binary forms, with or without modification,
mbed_official 235:685d5f11838f 18 * are permitted provided that the following conditions are met:
mbed_official 235:685d5f11838f 19 * 1. Redistributions of source code must retain the above copyright notice,
mbed_official 235:685d5f11838f 20 * this list of conditions and the following disclaimer.
mbed_official 235:685d5f11838f 21 * 2. Redistributions in binary form must reproduce the above copyright notice,
mbed_official 235:685d5f11838f 22 * this list of conditions and the following disclaimer in the documentation
mbed_official 235:685d5f11838f 23 * and/or other materials provided with the distribution.
mbed_official 235:685d5f11838f 24 * 3. Neither the name of STMicroelectronics nor the names of its contributors
mbed_official 235:685d5f11838f 25 * may be used to endorse or promote products derived from this software
mbed_official 235:685d5f11838f 26 * without specific prior written permission.
mbed_official 235:685d5f11838f 27 *
mbed_official 235:685d5f11838f 28 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
mbed_official 235:685d5f11838f 29 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
mbed_official 235:685d5f11838f 30 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
mbed_official 235:685d5f11838f 31 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
mbed_official 235:685d5f11838f 32 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
mbed_official 235:685d5f11838f 33 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
mbed_official 235:685d5f11838f 34 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
mbed_official 235:685d5f11838f 35 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
mbed_official 235:685d5f11838f 36 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
mbed_official 235:685d5f11838f 37 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
mbed_official 235:685d5f11838f 38 *
mbed_official 235:685d5f11838f 39 ******************************************************************************
mbed_official 235:685d5f11838f 40 */
mbed_official 235:685d5f11838f 41
mbed_official 235:685d5f11838f 42 /* Includes ------------------------------------------------------------------*/
mbed_official 235:685d5f11838f 43 #include "stm32f4xx_hal.h"
mbed_official 235:685d5f11838f 44
mbed_official 235:685d5f11838f 45 /** @addtogroup STM32F4xx_HAL_Driver
mbed_official 235:685d5f11838f 46 * @{
mbed_official 235:685d5f11838f 47 */
mbed_official 235:685d5f11838f 48
mbed_official 532:fe11edbda85c 49 /** @defgroup PWREx PWREx
mbed_official 235:685d5f11838f 50 * @brief PWR HAL module driver
mbed_official 235:685d5f11838f 51 * @{
mbed_official 235:685d5f11838f 52 */
mbed_official 235:685d5f11838f 53
mbed_official 235:685d5f11838f 54 #ifdef HAL_PWR_MODULE_ENABLED
mbed_official 235:685d5f11838f 55
mbed_official 235:685d5f11838f 56 /* Private typedef -----------------------------------------------------------*/
mbed_official 235:685d5f11838f 57 /* Private define ------------------------------------------------------------*/
mbed_official 532:fe11edbda85c 58 /** @addtogroup PWREx_Private_Constants
mbed_official 532:fe11edbda85c 59 * @{
mbed_official 532:fe11edbda85c 60 */
mbed_official 235:685d5f11838f 61 #define PWR_OVERDRIVE_TIMEOUT_VALUE 1000
mbed_official 235:685d5f11838f 62 #define PWR_UDERDRIVE_TIMEOUT_VALUE 1000
mbed_official 235:685d5f11838f 63 #define PWR_BKPREG_TIMEOUT_VALUE 1000
mbed_official 532:fe11edbda85c 64 #define PWR_VOSRDY_TIMEOUT_VALUE 1000
mbed_official 532:fe11edbda85c 65 /**
mbed_official 532:fe11edbda85c 66 * @}
mbed_official 532:fe11edbda85c 67 */
mbed_official 532:fe11edbda85c 68
mbed_official 532:fe11edbda85c 69
mbed_official 235:685d5f11838f 70 /* Private macro -------------------------------------------------------------*/
mbed_official 235:685d5f11838f 71 /* Private variables ---------------------------------------------------------*/
mbed_official 235:685d5f11838f 72 /* Private function prototypes -----------------------------------------------*/
mbed_official 235:685d5f11838f 73 /* Private functions ---------------------------------------------------------*/
mbed_official 532:fe11edbda85c 74 /** @defgroup PWREx_Exported_Functions PWREx Exported Functions
mbed_official 532:fe11edbda85c 75 * @{
mbed_official 235:685d5f11838f 76 */
mbed_official 235:685d5f11838f 77
mbed_official 532:fe11edbda85c 78 /** @defgroup PWREx_Exported_Functions_Group1 Peripheral Extended features functions
mbed_official 235:685d5f11838f 79 * @brief Peripheral Extended features functions
mbed_official 235:685d5f11838f 80 *
mbed_official 235:685d5f11838f 81 @verbatim
mbed_official 235:685d5f11838f 82
mbed_official 235:685d5f11838f 83 ===============================================================================
mbed_official 235:685d5f11838f 84 ##### Peripheral extended features functions #####
mbed_official 235:685d5f11838f 85 ===============================================================================
mbed_official 235:685d5f11838f 86
mbed_official 235:685d5f11838f 87 *** Main and Backup Regulators configuration ***
mbed_official 235:685d5f11838f 88 ================================================
mbed_official 235:685d5f11838f 89 [..]
mbed_official 235:685d5f11838f 90 (+) The backup domain includes 4 Kbytes of backup SRAM accessible only from
mbed_official 235:685d5f11838f 91 the CPU, and address in 32-bit, 16-bit or 8-bit mode. Its content is
mbed_official 235:685d5f11838f 92 retained even in Standby or VBAT mode when the low power backup regulator
mbed_official 235:685d5f11838f 93 is enabled. It can be considered as an internal EEPROM when VBAT is
mbed_official 532:fe11edbda85c 94 always present. You can use the HAL_PWREx_EnableBkUpReg() function to
mbed_official 235:685d5f11838f 95 enable the low power backup regulator.
mbed_official 235:685d5f11838f 96
mbed_official 235:685d5f11838f 97 (+) When the backup domain is supplied by VDD (analog switch connected to VDD)
mbed_official 235:685d5f11838f 98 the backup SRAM is powered from VDD which replaces the VBAT power supply to
mbed_official 235:685d5f11838f 99 save battery life.
mbed_official 235:685d5f11838f 100
mbed_official 235:685d5f11838f 101 (+) The backup SRAM is not mass erased by a tamper event. It is read
mbed_official 235:685d5f11838f 102 protected to prevent confidential data, such as cryptographic private
mbed_official 235:685d5f11838f 103 key, from being accessed. The backup SRAM can be erased only through
mbed_official 235:685d5f11838f 104 the Flash interface when a protection level change from level 1 to
mbed_official 235:685d5f11838f 105 level 0 is requested.
mbed_official 235:685d5f11838f 106 -@- Refer to the description of Read protection (RDP) in the Flash
mbed_official 235:685d5f11838f 107 programming manual.
mbed_official 235:685d5f11838f 108
mbed_official 235:685d5f11838f 109 (+) The main internal regulator can be configured to have a tradeoff between
mbed_official 235:685d5f11838f 110 performance and power consumption when the device does not operate at
mbed_official 235:685d5f11838f 111 the maximum frequency. This is done through __HAL_PWR_MAINREGULATORMODE_CONFIG()
mbed_official 235:685d5f11838f 112 macro which configure VOS bit in PWR_CR register
mbed_official 235:685d5f11838f 113
mbed_official 235:685d5f11838f 114 Refer to the product datasheets for more details.
mbed_official 235:685d5f11838f 115
mbed_official 235:685d5f11838f 116 *** FLASH Power Down configuration ****
mbed_official 235:685d5f11838f 117 =======================================
mbed_official 235:685d5f11838f 118 [..]
mbed_official 235:685d5f11838f 119 (+) By setting the FPDS bit in the PWR_CR register by using the
mbed_official 532:fe11edbda85c 120 HAL_PWREx_EnableFlashPowerDown() function, the Flash memory also enters power
mbed_official 235:685d5f11838f 121 down mode when the device enters Stop mode. When the Flash memory
mbed_official 235:685d5f11838f 122 is in power down mode, an additional startup delay is incurred when
mbed_official 235:685d5f11838f 123 waking up from Stop mode.
mbed_official 235:685d5f11838f 124
mbed_official 235:685d5f11838f 125 (+) For STM32F42xxx/43xxx Devices, the scale can be modified only when the PLL
mbed_official 235:685d5f11838f 126 is OFF and the HSI or HSE clock source is selected as system clock.
mbed_official 235:685d5f11838f 127 The new value programmed is active only when the PLL is ON.
mbed_official 235:685d5f11838f 128 When the PLL is OFF, the voltage scale 3 is automatically selected.
mbed_official 235:685d5f11838f 129 Refer to the datasheets for more details.
mbed_official 235:685d5f11838f 130
mbed_official 235:685d5f11838f 131 *** Over-Drive and Under-Drive configuration ****
mbed_official 235:685d5f11838f 132 =================================================
mbed_official 235:685d5f11838f 133 [..]
mbed_official 235:685d5f11838f 134 (+) For STM32F42xxx/43xxx Devices, in Run mode: the main regulator has
mbed_official 235:685d5f11838f 135 2 operating modes available:
mbed_official 235:685d5f11838f 136 (++) Normal mode: The CPU and core logic operate at maximum frequency at a given
mbed_official 235:685d5f11838f 137 voltage scaling (scale 1, scale 2 or scale 3)
mbed_official 235:685d5f11838f 138 (++) Over-drive mode: This mode allows the CPU and the core logic to operate at a
mbed_official 235:685d5f11838f 139 higher frequency than the normal mode for a given voltage scaling (scale 1,
mbed_official 235:685d5f11838f 140 scale 2 or scale 3). This mode is enabled through HAL_PWREx_EnableOverDrive() function and
mbed_official 235:685d5f11838f 141 disabled by HAL_PWREx_DisableOverDrive() function, to enter or exit from Over-drive mode please follow
mbed_official 235:685d5f11838f 142 the sequence described in Reference manual.
mbed_official 235:685d5f11838f 143
mbed_official 235:685d5f11838f 144 (+) For STM32F42xxx/43xxx Devices, in Stop mode: the main regulator or low power regulator
mbed_official 235:685d5f11838f 145 supplies a low power voltage to the 1.2V domain, thus preserving the content of registers
mbed_official 235:685d5f11838f 146 and internal SRAM. 2 operating modes are available:
mbed_official 235:685d5f11838f 147 (++) Normal mode: the 1.2V domain is preserved in nominal leakage mode. This mode is only
mbed_official 235:685d5f11838f 148 available when the main regulator or the low power regulator is used in Scale 3 or
mbed_official 235:685d5f11838f 149 low voltage mode.
mbed_official 235:685d5f11838f 150 (++) Under-drive mode: the 1.2V domain is preserved in reduced leakage mode. This mode is only
mbed_official 235:685d5f11838f 151 available when the main regulator or the low power regulator is in low voltage mode.
mbed_official 235:685d5f11838f 152
mbed_official 235:685d5f11838f 153 @endverbatim
mbed_official 235:685d5f11838f 154 * @{
mbed_official 235:685d5f11838f 155 */
mbed_official 235:685d5f11838f 156
mbed_official 235:685d5f11838f 157 /**
mbed_official 235:685d5f11838f 158 * @brief Enables the Backup Regulator.
mbed_official 235:685d5f11838f 159 * @retval HAL status
mbed_official 235:685d5f11838f 160 */
mbed_official 235:685d5f11838f 161 HAL_StatusTypeDef HAL_PWREx_EnableBkUpReg(void)
mbed_official 235:685d5f11838f 162 {
mbed_official 235:685d5f11838f 163 uint32_t tickstart = 0;
mbed_official 235:685d5f11838f 164
mbed_official 235:685d5f11838f 165 *(__IO uint32_t *) CSR_BRE_BB = (uint32_t)ENABLE;
mbed_official 235:685d5f11838f 166
mbed_official 235:685d5f11838f 167 /* Get tick */
mbed_official 235:685d5f11838f 168 tickstart = HAL_GetTick();
mbed_official 235:685d5f11838f 169
mbed_official 235:685d5f11838f 170 /* Wait till Backup regulator ready flag is set */
mbed_official 235:685d5f11838f 171 while(__HAL_PWR_GET_FLAG(PWR_FLAG_BRR) == RESET)
mbed_official 235:685d5f11838f 172 {
mbed_official 235:685d5f11838f 173 if((HAL_GetTick() - tickstart ) > PWR_BKPREG_TIMEOUT_VALUE)
mbed_official 235:685d5f11838f 174 {
mbed_official 235:685d5f11838f 175 return HAL_TIMEOUT;
mbed_official 235:685d5f11838f 176 }
mbed_official 235:685d5f11838f 177 }
mbed_official 235:685d5f11838f 178 return HAL_OK;
mbed_official 235:685d5f11838f 179 }
mbed_official 235:685d5f11838f 180
mbed_official 235:685d5f11838f 181 /**
mbed_official 235:685d5f11838f 182 * @brief Disables the Backup Regulator.
mbed_official 235:685d5f11838f 183 * @retval HAL status
mbed_official 235:685d5f11838f 184 */
mbed_official 235:685d5f11838f 185 HAL_StatusTypeDef HAL_PWREx_DisableBkUpReg(void)
mbed_official 235:685d5f11838f 186 {
mbed_official 235:685d5f11838f 187 uint32_t tickstart = 0;
mbed_official 235:685d5f11838f 188
mbed_official 235:685d5f11838f 189 *(__IO uint32_t *) CSR_BRE_BB = (uint32_t)DISABLE;
mbed_official 235:685d5f11838f 190
mbed_official 235:685d5f11838f 191 /* Get tick */
mbed_official 235:685d5f11838f 192 tickstart = HAL_GetTick();
mbed_official 235:685d5f11838f 193
mbed_official 235:685d5f11838f 194 /* Wait till Backup regulator ready flag is set */
mbed_official 235:685d5f11838f 195 while(__HAL_PWR_GET_FLAG(PWR_FLAG_BRR) != RESET)
mbed_official 235:685d5f11838f 196 {
mbed_official 235:685d5f11838f 197 if((HAL_GetTick() - tickstart ) > PWR_BKPREG_TIMEOUT_VALUE)
mbed_official 235:685d5f11838f 198 {
mbed_official 235:685d5f11838f 199 return HAL_TIMEOUT;
mbed_official 235:685d5f11838f 200 }
mbed_official 235:685d5f11838f 201 }
mbed_official 235:685d5f11838f 202 return HAL_OK;
mbed_official 235:685d5f11838f 203 }
mbed_official 235:685d5f11838f 204
mbed_official 235:685d5f11838f 205 /**
mbed_official 235:685d5f11838f 206 * @brief Enables the Flash Power Down in Stop mode.
mbed_official 235:685d5f11838f 207 * @retval None
mbed_official 235:685d5f11838f 208 */
mbed_official 235:685d5f11838f 209 void HAL_PWREx_EnableFlashPowerDown(void)
mbed_official 235:685d5f11838f 210 {
mbed_official 235:685d5f11838f 211 *(__IO uint32_t *) CR_FPDS_BB = (uint32_t)ENABLE;
mbed_official 235:685d5f11838f 212 }
mbed_official 235:685d5f11838f 213
mbed_official 235:685d5f11838f 214 /**
mbed_official 235:685d5f11838f 215 * @brief Disables the Flash Power Down in Stop mode.
mbed_official 235:685d5f11838f 216 * @retval None
mbed_official 235:685d5f11838f 217 */
mbed_official 235:685d5f11838f 218 void HAL_PWREx_DisableFlashPowerDown(void)
mbed_official 235:685d5f11838f 219 {
mbed_official 235:685d5f11838f 220 *(__IO uint32_t *) CR_FPDS_BB = (uint32_t)DISABLE;
mbed_official 235:685d5f11838f 221 }
mbed_official 235:685d5f11838f 222
mbed_official 532:fe11edbda85c 223 /**
mbed_official 532:fe11edbda85c 224 * @brief Return Voltage Scaling Range.
mbed_official 532:fe11edbda85c 225 * @retval The configured scale for the regulator voltage(VOS bit field).
mbed_official 532:fe11edbda85c 226 * The returned value can be one of the following:
mbed_official 532:fe11edbda85c 227 * - @arg PWR_REGULATOR_VOLTAGE_SCALE1: Regulator voltage output Scale 1 mode
mbed_official 532:fe11edbda85c 228 * - @arg PWR_REGULATOR_VOLTAGE_SCALE2: Regulator voltage output Scale 2 mode
mbed_official 532:fe11edbda85c 229 * - @arg PWR_REGULATOR_VOLTAGE_SCALE3: Regulator voltage output Scale 3 mode
mbed_official 532:fe11edbda85c 230 */
mbed_official 532:fe11edbda85c 231 uint32_t HAL_PWREx_GetVoltageRange(void)
mbed_official 532:fe11edbda85c 232 {
mbed_official 532:fe11edbda85c 233 return (PWR->CR & PWR_CR_VOS);
mbed_official 532:fe11edbda85c 234 }
mbed_official 532:fe11edbda85c 235
mbed_official 532:fe11edbda85c 236 #if defined(STM32F405xx) || defined(STM32F415xx) || defined(STM32F407xx) || defined(STM32F417xx)
mbed_official 532:fe11edbda85c 237 /**
mbed_official 532:fe11edbda85c 238 * @brief Configures the main internal regulator output voltage.
mbed_official 532:fe11edbda85c 239 * @param VoltageScaling: specifies the regulator output voltage to achieve
mbed_official 532:fe11edbda85c 240 * a tradeoff between performance and power consumption.
mbed_official 532:fe11edbda85c 241 * This parameter can be one of the following values:
mbed_official 532:fe11edbda85c 242 * @arg PWR_REGULATOR_VOLTAGE_SCALE1: Regulator voltage output range 1 mode,
mbed_official 532:fe11edbda85c 243 * the maximum value of fHCLK = 168 MHz.
mbed_official 532:fe11edbda85c 244 * @arg PWR_REGULATOR_VOLTAGE_SCALE2: Regulator voltage output range 2 mode,
mbed_official 532:fe11edbda85c 245 * the maximum value of fHCLK = 144 MHz.
mbed_official 532:fe11edbda85c 246 * @note When moving from Range 1 to Range 2, the system frequency must be decreased to
mbed_official 532:fe11edbda85c 247 * a value below 144 MHz before calling HAL_PWREx_ConfigVoltageScaling() API.
mbed_official 532:fe11edbda85c 248 * When moving from Range 2 to Range 1, the system frequency can be increased to
mbed_official 532:fe11edbda85c 249 * a value up to 168 MHz after calling HAL_PWREx_ConfigVoltageScaling() API.
mbed_official 532:fe11edbda85c 250 * @retval HAL Status
mbed_official 532:fe11edbda85c 251 */
mbed_official 532:fe11edbda85c 252 HAL_StatusTypeDef HAL_PWREx_ControlVoltageScaling(uint32_t VoltageScaling)
mbed_official 532:fe11edbda85c 253 {
mbed_official 532:fe11edbda85c 254 uint32_t tickstart = 0;
mbed_official 532:fe11edbda85c 255
mbed_official 532:fe11edbda85c 256 assert_param(IS_PWR_VOLTAGE_SCALING_RANGE(VoltageScaling));
mbed_official 532:fe11edbda85c 257
mbed_official 532:fe11edbda85c 258 /* Enable PWR RCC Clock Peripheral */
mbed_official 532:fe11edbda85c 259 __HAL_RCC_PWR_CLK_ENABLE();
mbed_official 532:fe11edbda85c 260
mbed_official 532:fe11edbda85c 261 /* Set Range */
mbed_official 532:fe11edbda85c 262 __HAL_PWR_VOLTAGESCALING_CONFIG(VoltageScaling);
mbed_official 532:fe11edbda85c 263
mbed_official 532:fe11edbda85c 264 /* Get Start Tick*/
mbed_official 532:fe11edbda85c 265 tickstart = HAL_GetTick();
mbed_official 532:fe11edbda85c 266 while((__HAL_PWR_GET_FLAG(PWR_FLAG_VOSRDY) == RESET))
mbed_official 532:fe11edbda85c 267 {
mbed_official 532:fe11edbda85c 268 if((HAL_GetTick() - tickstart ) > PWR_VOSRDY_TIMEOUT_VALUE)
mbed_official 532:fe11edbda85c 269 {
mbed_official 532:fe11edbda85c 270 return HAL_TIMEOUT;
mbed_official 532:fe11edbda85c 271 }
mbed_official 532:fe11edbda85c 272 }
mbed_official 532:fe11edbda85c 273
mbed_official 532:fe11edbda85c 274 return HAL_OK;
mbed_official 532:fe11edbda85c 275 }
mbed_official 532:fe11edbda85c 276
mbed_official 532:fe11edbda85c 277 #elif defined(STM32F427xx) || defined(STM32F437xx) || defined(STM32F429xx) || defined(STM32F439xx) || \
mbed_official 532:fe11edbda85c 278 defined(STM32F401xC) || defined(STM32F401xE) || defined(STM32F411xE) || defined(STM32F446xx)
mbed_official 532:fe11edbda85c 279 /**
mbed_official 532:fe11edbda85c 280 * @brief Configures the main internal regulator output voltage.
mbed_official 532:fe11edbda85c 281 * @param VoltageScaling: specifies the regulator output voltage to achieve
mbed_official 532:fe11edbda85c 282 * a tradeoff between performance and power consumption.
mbed_official 532:fe11edbda85c 283 * This parameter can be one of the following values:
mbed_official 532:fe11edbda85c 284 * @arg PWR_REGULATOR_VOLTAGE_SCALE1: Regulator voltage output range 1 mode,
mbed_official 532:fe11edbda85c 285 * the maximum value of fHCLK is 168 MHz. It can be extended to
mbed_official 532:fe11edbda85c 286 * 180 MHz by activating the over-drive mode.
mbed_official 532:fe11edbda85c 287 * @arg PWR_REGULATOR_VOLTAGE_SCALE2: Regulator voltage output range 2 mode,
mbed_official 532:fe11edbda85c 288 * the maximum value of fHCLK is 144 MHz. It can be extended to,
mbed_official 532:fe11edbda85c 289 * 168 MHz by activating the over-drive mode.
mbed_official 532:fe11edbda85c 290 * @arg PWR_REGULATOR_VOLTAGE_SCALE3: Regulator voltage output range 3 mode,
mbed_official 532:fe11edbda85c 291 * the maximum value of fHCLK is 120 MHz.
mbed_official 532:fe11edbda85c 292 * @note To update the system clock frequency(SYSCLK):
mbed_official 532:fe11edbda85c 293 * - Set the HSI or HSE as system clock frequency using the HAL_RCC_ClockConfig().
mbed_official 532:fe11edbda85c 294 * - Call the HAL_RCC_OscConfig() to configure the PLL.
mbed_official 532:fe11edbda85c 295 * - Call HAL_PWREx_ConfigVoltageScaling() API to adjust the voltage scale.
mbed_official 532:fe11edbda85c 296 * - Set the new system clock frequency using the HAL_RCC_ClockConfig().
mbed_official 532:fe11edbda85c 297 * @note The scale can be modified only when the HSI or HSE clock source is selected
mbed_official 532:fe11edbda85c 298 * as system clock source, otherwise the API returns HAL_ERROR.
mbed_official 532:fe11edbda85c 299 * @note When the PLL is OFF, the voltage scale 3 is automatically selected and the VOS bits
mbed_official 532:fe11edbda85c 300 * value in the PWR_CR1 register are not taken in account.
mbed_official 532:fe11edbda85c 301 * @note This API forces the PLL state ON to allow the possibility to configure the voltage scale 1 or 2.
mbed_official 532:fe11edbda85c 302 * @note The new voltage scale is active only when the PLL is ON.
mbed_official 532:fe11edbda85c 303 * @retval HAL Status
mbed_official 532:fe11edbda85c 304 */
mbed_official 532:fe11edbda85c 305 HAL_StatusTypeDef HAL_PWREx_ControlVoltageScaling(uint32_t VoltageScaling)
mbed_official 532:fe11edbda85c 306 {
mbed_official 532:fe11edbda85c 307 uint32_t tickstart = 0;
mbed_official 532:fe11edbda85c 308
mbed_official 532:fe11edbda85c 309 assert_param(IS_PWR_VOLTAGE_SCALING_RANGE(VoltageScaling));
mbed_official 532:fe11edbda85c 310
mbed_official 532:fe11edbda85c 311 /* Enable PWR RCC Clock Peripheral */
mbed_official 532:fe11edbda85c 312 __HAL_RCC_PWR_CLK_ENABLE();
mbed_official 532:fe11edbda85c 313
mbed_official 532:fe11edbda85c 314 /* Check if the PLL is used as system clock or not */
mbed_official 532:fe11edbda85c 315 if(__HAL_RCC_GET_SYSCLK_SOURCE() != RCC_CFGR_SWS_PLL)
mbed_official 532:fe11edbda85c 316 {
mbed_official 532:fe11edbda85c 317 /* Disable the main PLL */
mbed_official 532:fe11edbda85c 318 __HAL_RCC_PLL_DISABLE();
mbed_official 532:fe11edbda85c 319
mbed_official 532:fe11edbda85c 320 /* Get Start Tick */
mbed_official 532:fe11edbda85c 321 tickstart = HAL_GetTick();
mbed_official 532:fe11edbda85c 322 /* Wait till PLL is disabled */
mbed_official 532:fe11edbda85c 323 while(__HAL_RCC_GET_FLAG(RCC_FLAG_PLLRDY) != RESET)
mbed_official 532:fe11edbda85c 324 {
mbed_official 532:fe11edbda85c 325 if((HAL_GetTick() - tickstart ) > PLL_TIMEOUT_VALUE)
mbed_official 532:fe11edbda85c 326 {
mbed_official 532:fe11edbda85c 327 return HAL_TIMEOUT;
mbed_official 532:fe11edbda85c 328 }
mbed_official 532:fe11edbda85c 329 }
mbed_official 532:fe11edbda85c 330
mbed_official 532:fe11edbda85c 331 /* Set Range */
mbed_official 532:fe11edbda85c 332 __HAL_PWR_VOLTAGESCALING_CONFIG(VoltageScaling);
mbed_official 532:fe11edbda85c 333
mbed_official 532:fe11edbda85c 334 /* Enable the main PLL */
mbed_official 532:fe11edbda85c 335 __HAL_RCC_PLL_ENABLE();
mbed_official 532:fe11edbda85c 336
mbed_official 532:fe11edbda85c 337 /* Get Start Tick */
mbed_official 532:fe11edbda85c 338 tickstart = HAL_GetTick();
mbed_official 532:fe11edbda85c 339 /* Wait till PLL is ready */
mbed_official 532:fe11edbda85c 340 while(__HAL_RCC_GET_FLAG(RCC_FLAG_PLLRDY) == RESET)
mbed_official 532:fe11edbda85c 341 {
mbed_official 532:fe11edbda85c 342 if((HAL_GetTick() - tickstart ) > PLL_TIMEOUT_VALUE)
mbed_official 532:fe11edbda85c 343 {
mbed_official 532:fe11edbda85c 344 return HAL_TIMEOUT;
mbed_official 532:fe11edbda85c 345 }
mbed_official 532:fe11edbda85c 346 }
mbed_official 532:fe11edbda85c 347
mbed_official 532:fe11edbda85c 348 /* Get Start Tick */
mbed_official 532:fe11edbda85c 349 tickstart = HAL_GetTick();
mbed_official 532:fe11edbda85c 350 while((__HAL_PWR_GET_FLAG(PWR_FLAG_VOSRDY) == RESET))
mbed_official 532:fe11edbda85c 351 {
mbed_official 532:fe11edbda85c 352 if((HAL_GetTick() - tickstart ) > PWR_VOSRDY_TIMEOUT_VALUE)
mbed_official 532:fe11edbda85c 353 {
mbed_official 532:fe11edbda85c 354 return HAL_TIMEOUT;
mbed_official 532:fe11edbda85c 355 }
mbed_official 532:fe11edbda85c 356 }
mbed_official 532:fe11edbda85c 357 }
mbed_official 532:fe11edbda85c 358 else
mbed_official 532:fe11edbda85c 359 {
mbed_official 532:fe11edbda85c 360 return HAL_ERROR;
mbed_official 532:fe11edbda85c 361 }
mbed_official 532:fe11edbda85c 362
mbed_official 532:fe11edbda85c 363 return HAL_OK;
mbed_official 532:fe11edbda85c 364 }
mbed_official 532:fe11edbda85c 365 #endif /* STM32F405xx || STM32F415xx || STM32F407xx || STM32F417xx */
mbed_official 532:fe11edbda85c 366
mbed_official 235:685d5f11838f 367 #if defined(STM32F401xC) || defined(STM32F401xE) || defined(STM32F411xE)
mbed_official 235:685d5f11838f 368 /**
mbed_official 235:685d5f11838f 369 * @brief Enables Main Regulator low voltage mode.
mbed_official 235:685d5f11838f 370 * @note This mode is only available for STM32F401xx/STM32F411xx devices.
mbed_official 235:685d5f11838f 371 * @retval None
mbed_official 235:685d5f11838f 372 */
mbed_official 235:685d5f11838f 373 void HAL_PWREx_EnableMainRegulatorLowVoltage(void)
mbed_official 235:685d5f11838f 374 {
mbed_official 235:685d5f11838f 375 *(__IO uint32_t *) CR_MRLVDS_BB = (uint32_t)ENABLE;
mbed_official 235:685d5f11838f 376 }
mbed_official 235:685d5f11838f 377
mbed_official 235:685d5f11838f 378 /**
mbed_official 235:685d5f11838f 379 * @brief Disables Main Regulator low voltage mode.
mbed_official 235:685d5f11838f 380 * @note This mode is only available for STM32F401xx/STM32F411xx devices.
mbed_official 235:685d5f11838f 381 * @retval None
mbed_official 235:685d5f11838f 382 */
mbed_official 235:685d5f11838f 383 void HAL_PWREx_DisableMainRegulatorLowVoltage(void)
mbed_official 235:685d5f11838f 384 {
mbed_official 235:685d5f11838f 385 *(__IO uint32_t *) CR_MRLVDS_BB = (uint32_t)DISABLE;
mbed_official 235:685d5f11838f 386 }
mbed_official 235:685d5f11838f 387
mbed_official 235:685d5f11838f 388 /**
mbed_official 235:685d5f11838f 389 * @brief Enables Low Power Regulator low voltage mode.
mbed_official 235:685d5f11838f 390 * @note This mode is only available for STM32F401xx/STM32F411xx devices.
mbed_official 235:685d5f11838f 391 * @retval None
mbed_official 235:685d5f11838f 392 */
mbed_official 235:685d5f11838f 393 void HAL_PWREx_EnableLowRegulatorLowVoltage(void)
mbed_official 235:685d5f11838f 394 {
mbed_official 235:685d5f11838f 395 *(__IO uint32_t *) CR_LPLVDS_BB = (uint32_t)ENABLE;
mbed_official 235:685d5f11838f 396 }
mbed_official 235:685d5f11838f 397
mbed_official 235:685d5f11838f 398 /**
mbed_official 235:685d5f11838f 399 * @brief Disables Low Power Regulator low voltage mode.
mbed_official 235:685d5f11838f 400 * @note This mode is only available for STM32F401xx/STM32F411xx devices.
mbed_official 235:685d5f11838f 401 * @retval None
mbed_official 235:685d5f11838f 402 */
mbed_official 235:685d5f11838f 403 void HAL_PWREx_DisableLowRegulatorLowVoltage(void)
mbed_official 235:685d5f11838f 404 {
mbed_official 235:685d5f11838f 405 *(__IO uint32_t *) CR_LPLVDS_BB = (uint32_t)DISABLE;
mbed_official 235:685d5f11838f 406 }
mbed_official 235:685d5f11838f 407
mbed_official 235:685d5f11838f 408 #endif /* STM32F401xC || STM32F401xE || STM32F411xE */
mbed_official 235:685d5f11838f 409
mbed_official 532:fe11edbda85c 410 #if defined(STM32F427xx) || defined(STM32F437xx) || defined(STM32F429xx) || defined(STM32F439xx) || defined(STM32F446xx)
mbed_official 235:685d5f11838f 411 /**
mbed_official 235:685d5f11838f 412 * @brief Activates the Over-Drive mode.
mbed_official 235:685d5f11838f 413 * @note This function can be used only for STM32F42xx/STM32F43xx devices.
mbed_official 235:685d5f11838f 414 * This mode allows the CPU and the core logic to operate at a higher frequency
mbed_official 235:685d5f11838f 415 * than the normal mode for a given voltage scaling (scale 1, scale 2 or scale 3).
mbed_official 235:685d5f11838f 416 * @note It is recommended to enter or exit Over-drive mode when the application is not running
mbed_official 235:685d5f11838f 417 * critical tasks and when the system clock source is either HSI or HSE.
mbed_official 235:685d5f11838f 418 * During the Over-drive switch activation, no peripheral clocks should be enabled.
mbed_official 235:685d5f11838f 419 * The peripheral clocks must be enabled once the Over-drive mode is activated.
mbed_official 235:685d5f11838f 420 * @retval HAL status
mbed_official 235:685d5f11838f 421 */
mbed_official 532:fe11edbda85c 422 HAL_StatusTypeDef HAL_PWREx_EnableOverDrive(void)
mbed_official 235:685d5f11838f 423 {
mbed_official 235:685d5f11838f 424 uint32_t tickstart = 0;
mbed_official 235:685d5f11838f 425
mbed_official 532:fe11edbda85c 426 __HAL_RCC_PWR_CLK_ENABLE();
mbed_official 235:685d5f11838f 427
mbed_official 235:685d5f11838f 428 /* Enable the Over-drive to extend the clock frequency to 180 Mhz */
mbed_official 235:685d5f11838f 429 __HAL_PWR_OVERDRIVE_ENABLE();
mbed_official 235:685d5f11838f 430
mbed_official 235:685d5f11838f 431 /* Get tick */
mbed_official 235:685d5f11838f 432 tickstart = HAL_GetTick();
mbed_official 235:685d5f11838f 433
mbed_official 235:685d5f11838f 434 while(!__HAL_PWR_GET_FLAG(PWR_FLAG_ODRDY))
mbed_official 235:685d5f11838f 435 {
mbed_official 235:685d5f11838f 436 if((HAL_GetTick() - tickstart ) > PWR_OVERDRIVE_TIMEOUT_VALUE)
mbed_official 235:685d5f11838f 437 {
mbed_official 235:685d5f11838f 438 return HAL_TIMEOUT;
mbed_official 235:685d5f11838f 439 }
mbed_official 235:685d5f11838f 440 }
mbed_official 235:685d5f11838f 441
mbed_official 235:685d5f11838f 442 /* Enable the Over-drive switch */
mbed_official 235:685d5f11838f 443 __HAL_PWR_OVERDRIVESWITCHING_ENABLE();
mbed_official 235:685d5f11838f 444
mbed_official 235:685d5f11838f 445 /* Get tick */
mbed_official 235:685d5f11838f 446 tickstart = HAL_GetTick();
mbed_official 235:685d5f11838f 447
mbed_official 235:685d5f11838f 448 while(!__HAL_PWR_GET_FLAG(PWR_FLAG_ODSWRDY))
mbed_official 235:685d5f11838f 449 {
mbed_official 235:685d5f11838f 450 if((HAL_GetTick() - tickstart ) > PWR_OVERDRIVE_TIMEOUT_VALUE)
mbed_official 235:685d5f11838f 451 {
mbed_official 235:685d5f11838f 452 return HAL_TIMEOUT;
mbed_official 235:685d5f11838f 453 }
mbed_official 235:685d5f11838f 454 }
mbed_official 235:685d5f11838f 455 return HAL_OK;
mbed_official 235:685d5f11838f 456 }
mbed_official 235:685d5f11838f 457
mbed_official 235:685d5f11838f 458 /**
mbed_official 235:685d5f11838f 459 * @brief Deactivates the Over-Drive mode.
mbed_official 235:685d5f11838f 460 * @note This function can be used only for STM32F42xx/STM32F43xx devices.
mbed_official 235:685d5f11838f 461 * This mode allows the CPU and the core logic to operate at a higher frequency
mbed_official 235:685d5f11838f 462 * than the normal mode for a given voltage scaling (scale 1, scale 2 or scale 3).
mbed_official 235:685d5f11838f 463 * @note It is recommended to enter or exit Over-drive mode when the application is not running
mbed_official 235:685d5f11838f 464 * critical tasks and when the system clock source is either HSI or HSE.
mbed_official 235:685d5f11838f 465 * During the Over-drive switch activation, no peripheral clocks should be enabled.
mbed_official 235:685d5f11838f 466 * The peripheral clocks must be enabled once the Over-drive mode is activated.
mbed_official 235:685d5f11838f 467 * @retval HAL status
mbed_official 235:685d5f11838f 468 */
mbed_official 532:fe11edbda85c 469 HAL_StatusTypeDef HAL_PWREx_DisableOverDrive(void)
mbed_official 235:685d5f11838f 470 {
mbed_official 235:685d5f11838f 471 uint32_t tickstart = 0;
mbed_official 235:685d5f11838f 472
mbed_official 532:fe11edbda85c 473 __HAL_RCC_PWR_CLK_ENABLE();
mbed_official 235:685d5f11838f 474
mbed_official 235:685d5f11838f 475 /* Disable the Over-drive switch */
mbed_official 235:685d5f11838f 476 __HAL_PWR_OVERDRIVESWITCHING_DISABLE();
mbed_official 235:685d5f11838f 477
mbed_official 235:685d5f11838f 478 /* Get tick */
mbed_official 235:685d5f11838f 479 tickstart = HAL_GetTick();
mbed_official 235:685d5f11838f 480
mbed_official 235:685d5f11838f 481 while(__HAL_PWR_GET_FLAG(PWR_FLAG_ODSWRDY))
mbed_official 235:685d5f11838f 482 {
mbed_official 235:685d5f11838f 483 if((HAL_GetTick() - tickstart ) > PWR_OVERDRIVE_TIMEOUT_VALUE)
mbed_official 235:685d5f11838f 484 {
mbed_official 235:685d5f11838f 485 return HAL_TIMEOUT;
mbed_official 235:685d5f11838f 486 }
mbed_official 235:685d5f11838f 487 }
mbed_official 235:685d5f11838f 488
mbed_official 235:685d5f11838f 489 /* Disable the Over-drive */
mbed_official 235:685d5f11838f 490 __HAL_PWR_OVERDRIVE_DISABLE();
mbed_official 235:685d5f11838f 491
mbed_official 235:685d5f11838f 492 /* Get tick */
mbed_official 235:685d5f11838f 493 tickstart = HAL_GetTick();
mbed_official 235:685d5f11838f 494
mbed_official 235:685d5f11838f 495 while(__HAL_PWR_GET_FLAG(PWR_FLAG_ODRDY))
mbed_official 235:685d5f11838f 496 {
mbed_official 235:685d5f11838f 497 if((HAL_GetTick() - tickstart ) > PWR_OVERDRIVE_TIMEOUT_VALUE)
mbed_official 235:685d5f11838f 498 {
mbed_official 235:685d5f11838f 499 return HAL_TIMEOUT;
mbed_official 235:685d5f11838f 500 }
mbed_official 235:685d5f11838f 501 }
mbed_official 235:685d5f11838f 502
mbed_official 235:685d5f11838f 503 return HAL_OK;
mbed_official 235:685d5f11838f 504 }
mbed_official 235:685d5f11838f 505
mbed_official 235:685d5f11838f 506 /**
mbed_official 235:685d5f11838f 507 * @brief Enters in Under-Drive STOP mode.
mbed_official 235:685d5f11838f 508 *
mbed_official 235:685d5f11838f 509 * @note This mode is only available for STM32F42xxx/STM324F3xxx devices.
mbed_official 235:685d5f11838f 510 *
mbed_official 235:685d5f11838f 511 * @note This mode can be selected only when the Under-Drive is already active
mbed_official 235:685d5f11838f 512 *
mbed_official 235:685d5f11838f 513 * @note This mode is enabled only with STOP low power mode.
mbed_official 235:685d5f11838f 514 * In this mode, the 1.2V domain is preserved in reduced leakage mode. This
mbed_official 235:685d5f11838f 515 * mode is only available when the main regulator or the low power regulator
mbed_official 235:685d5f11838f 516 * is in low voltage mode
mbed_official 235:685d5f11838f 517 *
mbed_official 235:685d5f11838f 518 * @note If the Under-drive mode was enabled, it is automatically disabled after
mbed_official 235:685d5f11838f 519 * exiting Stop mode.
mbed_official 235:685d5f11838f 520 * When the voltage regulator operates in Under-drive mode, an additional
mbed_official 235:685d5f11838f 521 * startup delay is induced when waking up from Stop mode.
mbed_official 235:685d5f11838f 522 *
mbed_official 235:685d5f11838f 523 * @note In Stop mode, all I/O pins keep the same state as in Run mode.
mbed_official 235:685d5f11838f 524 *
mbed_official 532:fe11edbda85c 525 * @note When exiting Stop mode by issuing an interrupt or a wake-up event,
mbed_official 235:685d5f11838f 526 * the HSI RC oscillator is selected as system clock.
mbed_official 235:685d5f11838f 527 *
mbed_official 235:685d5f11838f 528 * @note When the voltage regulator operates in low power mode, an additional
mbed_official 235:685d5f11838f 529 * startup delay is incurred when waking up from Stop mode.
mbed_official 235:685d5f11838f 530 * By keeping the internal regulator ON during Stop mode, the consumption
mbed_official 235:685d5f11838f 531 * is higher although the startup time is reduced.
mbed_official 235:685d5f11838f 532 *
mbed_official 235:685d5f11838f 533 * @param Regulator: specifies the regulator state in STOP mode.
mbed_official 235:685d5f11838f 534 * This parameter can be one of the following values:
mbed_official 235:685d5f11838f 535 * @arg PWR_MAINREGULATOR_UNDERDRIVE_ON: Main Regulator in under-drive mode
mbed_official 235:685d5f11838f 536 * and Flash memory in power-down when the device is in Stop under-drive mode
mbed_official 235:685d5f11838f 537 * @arg PWR_LOWPOWERREGULATOR_UNDERDRIVE_ON: Low Power Regulator in under-drive mode
mbed_official 235:685d5f11838f 538 * and Flash memory in power-down when the device is in Stop under-drive mode
mbed_official 235:685d5f11838f 539 * @param STOPEntry: specifies if STOP mode in entered with WFI or WFE instruction.
mbed_official 235:685d5f11838f 540 * This parameter can be one of the following values:
mbed_official 235:685d5f11838f 541 * @arg PWR_SLEEPENTRY_WFI: enter STOP mode with WFI instruction
mbed_official 235:685d5f11838f 542 * @arg PWR_SLEEPENTRY_WFE: enter STOP mode with WFE instruction
mbed_official 235:685d5f11838f 543 * @retval None
mbed_official 235:685d5f11838f 544 */
mbed_official 235:685d5f11838f 545 HAL_StatusTypeDef HAL_PWREx_EnterUnderDriveSTOPMode(uint32_t Regulator, uint8_t STOPEntry)
mbed_official 235:685d5f11838f 546 {
mbed_official 532:fe11edbda85c 547 uint32_t tmpreg1 = 0;
mbed_official 235:685d5f11838f 548 uint32_t tickstart = 0;
mbed_official 235:685d5f11838f 549
mbed_official 235:685d5f11838f 550 /* Check the parameters */
mbed_official 235:685d5f11838f 551 assert_param(IS_PWR_REGULATOR_UNDERDRIVE(Regulator));
mbed_official 235:685d5f11838f 552 assert_param(IS_PWR_STOP_ENTRY(STOPEntry));
mbed_official 235:685d5f11838f 553
mbed_official 235:685d5f11838f 554 /* Enable Power ctrl clock */
mbed_official 532:fe11edbda85c 555 __HAL_RCC_PWR_CLK_ENABLE();
mbed_official 235:685d5f11838f 556 /* Enable the Under-drive Mode ---------------------------------------------*/
mbed_official 235:685d5f11838f 557 /* Clear Under-drive flag */
mbed_official 235:685d5f11838f 558 __HAL_PWR_CLEAR_ODRUDR_FLAG();
mbed_official 235:685d5f11838f 559
mbed_official 235:685d5f11838f 560 /* Enable the Under-drive */
mbed_official 235:685d5f11838f 561 __HAL_PWR_UNDERDRIVE_ENABLE();
mbed_official 235:685d5f11838f 562
mbed_official 235:685d5f11838f 563 /* Get tick */
mbed_official 235:685d5f11838f 564 tickstart = HAL_GetTick();
mbed_official 235:685d5f11838f 565
mbed_official 235:685d5f11838f 566 /* Wait for UnderDrive mode is ready */
mbed_official 235:685d5f11838f 567 while(__HAL_PWR_GET_FLAG(PWR_FLAG_UDRDY))
mbed_official 235:685d5f11838f 568 {
mbed_official 235:685d5f11838f 569 if((HAL_GetTick() - tickstart ) > PWR_UDERDRIVE_TIMEOUT_VALUE)
mbed_official 235:685d5f11838f 570 {
mbed_official 235:685d5f11838f 571 return HAL_TIMEOUT;
mbed_official 235:685d5f11838f 572 }
mbed_official 235:685d5f11838f 573 }
mbed_official 235:685d5f11838f 574
mbed_official 235:685d5f11838f 575 /* Select the regulator state in STOP mode ---------------------------------*/
mbed_official 532:fe11edbda85c 576 tmpreg1 = PWR->CR;
mbed_official 235:685d5f11838f 577 /* Clear PDDS, LPDS, MRLUDS and LPLUDS bits */
mbed_official 532:fe11edbda85c 578 tmpreg1 &= (uint32_t)~(PWR_CR_PDDS | PWR_CR_LPDS | PWR_CR_LPUDS | PWR_CR_MRUDS);
mbed_official 235:685d5f11838f 579
mbed_official 235:685d5f11838f 580 /* Set LPDS, MRLUDS and LPLUDS bits according to PWR_Regulator value */
mbed_official 532:fe11edbda85c 581 tmpreg1 |= Regulator;
mbed_official 235:685d5f11838f 582
mbed_official 235:685d5f11838f 583 /* Store the new value */
mbed_official 532:fe11edbda85c 584 PWR->CR = tmpreg1;
mbed_official 235:685d5f11838f 585
mbed_official 235:685d5f11838f 586 /* Set SLEEPDEEP bit of Cortex System Control Register */
mbed_official 235:685d5f11838f 587 SCB->SCR |= SCB_SCR_SLEEPDEEP_Msk;
mbed_official 235:685d5f11838f 588
mbed_official 235:685d5f11838f 589 /* Select STOP mode entry --------------------------------------------------*/
mbed_official 235:685d5f11838f 590 if(STOPEntry == PWR_SLEEPENTRY_WFI)
mbed_official 235:685d5f11838f 591 {
mbed_official 235:685d5f11838f 592 /* Request Wait For Interrupt */
mbed_official 235:685d5f11838f 593 __WFI();
mbed_official 235:685d5f11838f 594 }
mbed_official 235:685d5f11838f 595 else
mbed_official 235:685d5f11838f 596 {
mbed_official 235:685d5f11838f 597 /* Request Wait For Event */
mbed_official 235:685d5f11838f 598 __WFE();
mbed_official 235:685d5f11838f 599 }
mbed_official 235:685d5f11838f 600 /* Reset SLEEPDEEP bit of Cortex System Control Register */
mbed_official 235:685d5f11838f 601 SCB->SCR &= (uint32_t)~((uint32_t)SCB_SCR_SLEEPDEEP_Msk);
mbed_official 235:685d5f11838f 602
mbed_official 235:685d5f11838f 603 return HAL_OK;
mbed_official 235:685d5f11838f 604 }
mbed_official 235:685d5f11838f 605
mbed_official 532:fe11edbda85c 606 #endif /* STM32F427xx || STM32F437xx || STM32F429xx || STM32F439xx || STM32F446xx */
mbed_official 235:685d5f11838f 607 /**
mbed_official 235:685d5f11838f 608 * @}
mbed_official 235:685d5f11838f 609 */
mbed_official 235:685d5f11838f 610
mbed_official 235:685d5f11838f 611 /**
mbed_official 235:685d5f11838f 612 * @}
mbed_official 235:685d5f11838f 613 */
mbed_official 235:685d5f11838f 614
mbed_official 235:685d5f11838f 615 #endif /* HAL_PWR_MODULE_ENABLED */
mbed_official 235:685d5f11838f 616 /**
mbed_official 235:685d5f11838f 617 * @}
mbed_official 235:685d5f11838f 618 */
mbed_official 235:685d5f11838f 619
mbed_official 235:685d5f11838f 620 /**
mbed_official 235:685d5f11838f 621 * @}
mbed_official 235:685d5f11838f 622 */
mbed_official 235:685d5f11838f 623
mbed_official 235:685d5f11838f 624 /************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/