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Diffstat (limited to 'tmk_core/tool/mbed/mbed-sdk/libraries/mbed/targets/cmsis/TARGET_STM/TARGET_STM32F3/stm32f3xx_hal_pwr.c')
| -rw-r--r-- | tmk_core/tool/mbed/mbed-sdk/libraries/mbed/targets/cmsis/TARGET_STM/TARGET_STM32F3/stm32f3xx_hal_pwr.c | 445 |
1 files changed, 445 insertions, 0 deletions
diff --git a/tmk_core/tool/mbed/mbed-sdk/libraries/mbed/targets/cmsis/TARGET_STM/TARGET_STM32F3/stm32f3xx_hal_pwr.c b/tmk_core/tool/mbed/mbed-sdk/libraries/mbed/targets/cmsis/TARGET_STM/TARGET_STM32F3/stm32f3xx_hal_pwr.c new file mode 100644 index 0000000000..bb7f7f9dbd --- /dev/null +++ b/tmk_core/tool/mbed/mbed-sdk/libraries/mbed/targets/cmsis/TARGET_STM/TARGET_STM32F3/stm32f3xx_hal_pwr.c @@ -0,0 +1,445 @@ +/** + ****************************************************************************** + * @file stm32f3xx_hal_pwr.c + * @author MCD Application Team + * @version V1.1.0 + * @date 12-Sept-2014 + * @brief PWR HAL module driver. + * + * This file provides firmware functions to manage the following + * functionalities of the Power Controller (PWR) peripheral: + * + Initialization/de-initialization functions + * + Peripheral Control functions + * + @verbatim + ****************************************************************************** + * @attention + * + * <h2><center>© COPYRIGHT(c) 2014 STMicroelectronics</center></h2> + * + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * 1. Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * 3. Neither the name of STMicroelectronics nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" + * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE + * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR + * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER + * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, + * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE + * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + * + ****************************************************************************** + */ + +/* Includes ------------------------------------------------------------------*/ +#include "stm32f3xx_hal.h" + +/** @addtogroup STM32F3xx_HAL_Driver + * @{ + */ + +/** @defgroup PWR PWR HAL module driver + * @brief PWR HAL module driver + * @{ + */ + +#ifdef HAL_PWR_MODULE_ENABLED + +/* Private typedef -----------------------------------------------------------*/ +/* Private define ------------------------------------------------------------*/ +/* Private macro -------------------------------------------------------------*/ +/* Private variables ---------------------------------------------------------*/ +/* Private function prototypes -----------------------------------------------*/ +/* Private functions ---------------------------------------------------------*/ + +/** @defgroup PWR_Exported_Functions PWR Exported Functions + * @{ + */ + +/** @defgroup PWR_Exported_Functions_Group1 Initialization and de-initialization functions + * @brief Initialization and de-initialization functions + * +@verbatim + =============================================================================== + ##### Initialization/de-initialization functions ##### + =============================================================================== + [..] + After reset, the backup domain (RTC registers, RTC backup data + registers and backup SRAM) is protected against possible unwanted + write accesses. + To enable access to the RTC Domain and RTC registers, proceed as follows: + (+) Enable the Power Controller (PWR) APB1 interface clock using the + __PWR_CLK_ENABLE() macro. + (+) Enable access to RTC domain using the HAL_PWR_EnableBkUpAccess() function. + +@endverbatim + * @{ + */ + +/** + * @brief Deinitializes the HAL PWR peripheral registers to their default reset values. + * @retval None + */ +void HAL_PWR_DeInit(void) +{ + __PWR_FORCE_RESET(); + __PWR_RELEASE_RESET(); +} + +/** + * @brief Enables access to the backup domain (RTC registers, RTC + * backup data registers and backup SRAM). + * @note If the HSE divided by 32 is used as the RTC clock, the + * Backup Domain Access should be kept enabled. + * @retval None + */ +void HAL_PWR_EnableBkUpAccess(void) +{ + *(__IO uint32_t *) CR_DBP_BB = (uint32_t)ENABLE; +} + +/** + * @brief Disables access to the backup domain (RTC registers, RTC + * backup data registers and backup SRAM). + * @note If the HSE divided by 32 is used as the RTC clock, the + * Backup Domain Access should be kept enabled. + * @retval None + */ +void HAL_PWR_DisableBkUpAccess(void) +{ + *(__IO uint32_t *) CR_DBP_BB = (uint32_t)DISABLE; +} + +/** + * @} + */ + +/** @defgroup PWR_Exported_Functions_Group2 Peripheral Control functions + * @brief Low Power modes configuration functions + * +@verbatim + + =============================================================================== + ##### Peripheral Control functions ##### + =============================================================================== + [..] + *** WakeUp pin configuration *** + ================================ + (+) WakeUp pin is used to wakeup the system from Standby mode. This pin is + forced in input pull down configuration and is active on rising edges. + (+) There are up to three WakeUp pins: + WakeUp Pin 1 on PA.00. + WakeUp Pin 2 on PC.13 (STM32F303xC, STM32F303xE only). + WakeUp Pin 3 on PE.06. + + *** Main and Backup Regulators configuration *** + ================================================ + [..] + (+) When the backup domain is supplied by VDD (analog switch connected to VDD) + the backup SRAM is powered from VDD which replaces the VBAT power supply to + save battery life. + + (+) The backup SRAM is not mass erased by an tamper event. It is read + protected to prevent confidential data, such as cryptographic private + key, from being accessed. The backup SRAM can be erased only through + the Flash interface when a protection level change from level 1 to + level 0 is requested. + -@- Refer to the description of Read protection (RDP) in the Flash + programming manual. + + Refer to the datasheets for more details. + + *** Low Power modes configuration *** + ===================================== + [..] + The devices feature 3 low-power modes: + (+) Sleep mode: Cortex-M4 core stopped, peripherals kept running. + (+) Stop mode: all clocks are stopped, regulator running, regulator + in low power mode + (+) Standby mode: 1.2V domain powered off (mode not available on STM32F3x8 devices). + + *** Sleep mode *** + ================== + [..] + (+) Entry: + The Sleep mode is entered by using the HAL_PWR_EnterSLEEPMode(PWR_MAINREGULATOR_ON, PWR_SLEEPENTRY_WFx) + functions with + (++) PWR_SLEEPENTRY_WFI: enter SLEEP mode with WFI instruction + (++) PWR_SLEEPENTRY_WFE: enter SLEEP mode with WFE instruction + + (+) Exit: + (++) Any peripheral interrupt acknowledged by the nested vectored interrupt + controller (NVIC) can wake up the device from Sleep mode. + + *** Stop mode *** + ================= + [..] + In Stop mode, all clocks in the 1.8V domain are stopped, the PLL, the HSI, + and the HSE RC oscillators are disabled. Internal SRAM and register contents + are preserved. + The voltage regulator can be configured either in normal or low-power mode. + To minimize the consumption. + + (+) Entry: + The Stop mode is entered using the HAL_PWR_EnterSTOPMode(PWR_MAINREGULATOR_ON, PWR_STOPENTRY_WFI ) + function with: + (++) Main regulator ON. + (++) Low Power regulator ON. + (++) PWR_STOPENTRY_WFI: enter STOP mode with WFI instruction + (++) PWR_STOPENTRY_WFE: enter STOP mode with WFE instruction + (+) Exit: + (++) Any EXTI Line (Internal or External) configured in Interrupt/Event mode. + (++) Some specific communication peripherals (CEC, USART, I2C) interrupts, + when programmed in wakeup mode (the peripheral must be + programmed in wakeup mode and the corresponding interrupt vector + must be enabled in the NVIC) + + *** Standby mode *** + ==================== + [..] + The Standby mode allows to achieve the lowest power consumption. It is based + on the Cortex-M4 deep sleep mode, with the voltage regulator disabled. + The 1.8V domain is consequently powered off. The PLL, the HSI oscillator and + the HSE oscillator are also switched off. SRAM and register contents are lost + except for the RTC registers, RTC backup registers, backup SRAM and Standby + circuitry. + The voltage regulator is OFF. + + (+) Entry: + (++) The Standby mode is entered using the HAL_PWR_EnterSTANDBYMode() function. + (+) Exit: + (++) WKUP pin rising edge, RTC alarm (Alarm A and Alarm B), RTC wakeup, + tamper event, time-stamp event, external reset in NRST pin, IWDG reset. + + *** Auto-wakeup (AWU) from low-power mode *** + ============================================= + [..] + The MCU can be woken up from low-power mode by an RTC Alarm event, an RTC + Wakeup event, a tamper event, a time-stamp event, or a comparator event, + without depending on an external interrupt (Auto-wakeup mode). + + (+) RTC auto-wakeup (AWU) from the Stop and Standby modes + + (++) To wake up from the Stop mode with an RTC alarm event, it is necessary to + configure the RTC to generate the RTC alarm using the HAL_RTC_SetAlarm_IT() function. + + (++) To wake up from the Stop mode with an RTC Tamper or time stamp event, it + is necessary to configure the RTC to detect the tamper or time stamp event using the + HAL_RTC_SetTimeStamp_IT() or HAL_RTC_SetTamper_IT() functions. + + (++) To wake up from the Stop mode with an RTC WakeUp event, it is necessary to + configure the RTC to generate the RTC WakeUp event using the HAL_RTC_SetWakeUpTimer_IT() function. + + (+) Comparator auto-wakeup (AWU) from the Stop mode + + (++) To wake up from the Stop mode with a comparator wakeup event, it is necessary to: + (+++) Configure the EXTI Line associated with the comparator (example EXTI Line 22 for comparator 2) + to be sensitive to to the selected edges (falling, rising or falling + and rising) (Interrupt or Event modes) using the EXTI_Init() function. + (+++) Configure the comparator to generate the event. +@endverbatim + * @{ + */ + +/** + * @brief Enables the WakeUp PINx functionality. + * @param WakeUpPinx: Specifies the Power Wake-Up pin to enable. + * This parameter can be one of the following values: + * @arg PWR_WAKEUP_PIN1, PWR_WAKEUP_PIN2, PWR_WAKEUP_PIN3 + * @retval None + */ +void HAL_PWR_EnableWakeUpPin(uint32_t WakeUpPinx) +{ + __IO uint32_t tmp = 0; + + /* Check the parameters */ + assert_param(IS_PWR_WAKEUP_PIN(WakeUpPinx)); + tmp = CSR_EWUP1_BB + (WakeUpPinx << 2); + *(__IO uint32_t *) (tmp) = (uint32_t)ENABLE; +} + +/** + * @brief Disables the WakeUp PINx functionality. + * @param WakeUpPinx: Specifies the Power Wake-Up pin to disable. + * This parameter can be one of the following values: + * @arg PWR_WAKEUP_PIN1, PWR_WAKEUP_PIN2, PWR_WAKEUP_PIN3 + * @retval None + */ +void HAL_PWR_DisableWakeUpPin(uint32_t WakeUpPinx) +{ + __IO uint32_t tmp = 0; + + /* Check the parameters */ + assert_param(IS_PWR_WAKEUP_PIN(WakeUpPinx)); + tmp = CSR_EWUP1_BB + (WakeUpPinx << 2); + *(__IO uint32_t *) (tmp) = (uint32_t)DISABLE; +} + +/** + * @brief Enters Sleep mode. + * @note In Sleep mode, all I/O pins keep the same state as in Run mode. + * @param Regulator: Specifies the regulator state in SLEEP mode. + * This parameter can be one of the following values: + * @arg PWR_MAINREGULATOR_ON: SLEEP mode with regulator ON + * @arg PWR_LOWPOWERREGULATOR_ON: SLEEP mode with low power regulator ON + * @param SLEEPEntry: Specifies if SLEEP mode is entered with WFI or WFE instruction. + * When WFI entry is used, tick interrupt have to be disabled if not desired as + * the interrupt wake up source. + * This parameter can be one of the following values: + * @arg PWR_SLEEPENTRY_WFI: enter SLEEP mode with WFI instruction + * @arg PWR_SLEEPENTRY_WFE: enter SLEEP mode with WFE instruction + * @retval None + */ +void HAL_PWR_EnterSLEEPMode(uint32_t Regulator, uint8_t SLEEPEntry) +{ + uint32_t tmpreg = 0; + + /* Check the parameters */ + assert_param(IS_PWR_REGULATOR(Regulator)); + assert_param(IS_PWR_SLEEP_ENTRY(SLEEPEntry)); + + /* Select the regulator state in SLEEP mode ---------------------------------*/ + tmpreg = PWR->CR; + + /* Clear PDDS and LPDS bits */ + tmpreg &= (uint32_t)~(PWR_CR_PDDS | PWR_CR_LPDS); + + /* Set LPDS bit according to Regulator value */ + tmpreg |= Regulator; + + /* Store the new value */ + PWR->CR = tmpreg; + + /* Clear SLEEPDEEP bit of Cortex System Control Register */ + SCB->SCR &= (uint32_t)~((uint32_t)SCB_SCR_SLEEPDEEP_Msk); + + /* Select SLEEP mode entry -------------------------------------------------*/ + if(SLEEPEntry == PWR_SLEEPENTRY_WFI) + { + /* Request Wait For Interrupt */ + __WFI(); + } + else + { + /* Request Wait For Event */ + __SEV(); + __WFE(); + __WFE(); + } +} + +/** + * @brief Enters STOP mode. + * @note In Stop mode, all I/O pins keep the same state as in Run mode. + * @note When exiting Stop mode by issuing an interrupt or a wakeup event, + * the HSI RC oscillator is selected as system clock. + * @note When the voltage regulator operates in low power mode, an additional + * startup delay is incurred when waking up from Stop mode. + * By keeping the internal regulator ON during Stop mode, the consumption + * is higher although the startup time is reduced. + * @param Regulator: Specifies the regulator state in STOP mode. + * This parameter can be one of the following values: + * @arg PWR_MAINREGULATOR_ON: STOP mode with regulator ON + * @arg PWR_LOWPOWERREGULATOR_ON: STOP mode with low power regulator ON + * @param STOPEntry: specifies if STOP mode in entered with WFI or WFE instruction. + * This parameter can be one of the following values: + * @arg PWR_STOPENTRY_WFI:Enter STOP mode with WFI instruction + * @arg PWR_STOPENTRY_WFE: Enter STOP mode with WFE instruction + * @retval None + */ +void HAL_PWR_EnterSTOPMode(uint32_t Regulator, uint8_t STOPEntry) +{ + uint32_t tmpreg = 0; + + /* Check the parameters */ + assert_param(IS_PWR_REGULATOR(Regulator)); + assert_param(IS_PWR_STOP_ENTRY(STOPEntry)); + + /* Select the regulator state in STOP mode ---------------------------------*/ + tmpreg = PWR->CR; + + /* Clear PDDS and LPDS bits */ + tmpreg &= (uint32_t)~(PWR_CR_PDDS | PWR_CR_LPDS); + + /* Set LPDS bit according to Regulator value */ + tmpreg |= Regulator; + + /* Store the new value */ + PWR->CR = tmpreg; + + /* Set SLEEPDEEP bit of Cortex System Control Register */ + SCB->SCR |= SCB_SCR_SLEEPDEEP_Msk; + + /* Select STOP mode entry --------------------------------------------------*/ + if(STOPEntry == PWR_STOPENTRY_WFI) + { + /* Request Wait For Interrupt */ + __WFI(); + } + else + { + /* Request Wait For Event */ + __SEV(); + __WFE(); + __WFE(); + } + + /* Reset SLEEPDEEP bit of Cortex System Control Register */ + SCB->SCR &= (uint32_t)~((uint32_t)SCB_SCR_SLEEPDEEP_Msk); +} + +/** + * @brief Enters STANDBY mode. + * @note In Standby mode, all I/O pins are high impedance except for: + * - Reset pad (still available) + * - RTC_AF1 pin (PC13) if configured for tamper, time-stamp, RTC + * Alarm out, or RTC clock calibration out. + * - RTC_AF2 pin (PI8) if configured for tamper or time-stamp. + * - WKUP pin 1 (PA0) if enabled. + * @retval None + */ +void HAL_PWR_EnterSTANDBYMode(void) +{ + /* Select STANDBY mode */ + PWR->CR |= PWR_CR_PDDS; + + /* Set SLEEPDEEP bit of Cortex System Control Register */ + SCB->SCR |= SCB_SCR_SLEEPDEEP_Msk; + + /* This option is used to ensure that store operations are completed */ +#if defined ( __CC_ARM) + __force_stores(); +#endif + /* Request Wait For Interrupt */ + __WFI(); +} + +/** + * @} + */ + +/** + * @} + */ + +#endif /* HAL_PWR_MODULE_ENABLED */ +/** + * @} + */ + +/** + * @} + */ + +/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/ |