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diff --git a/bsps/arm/stm32h7/hal/stm32h7xx_hal_pwr.c b/bsps/arm/stm32h7/hal/stm32h7xx_hal_pwr.c new file mode 100644 index 0000000000..43d9052a2c --- /dev/null +++ b/bsps/arm/stm32h7/hal/stm32h7xx_hal_pwr.c @@ -0,0 +1,868 @@ +/**
+ ******************************************************************************
+ * @file stm32h7xx_hal_pwr.c
+ * @author MCD Application Team
+ * @brief PWR HAL module driver.
+ * This file provides firmware functions to manage the following
+ * functionalities of the Power Controller (PWR) peripheral:
+ * + Initialization and de-initialization functions.
+ * + Peripheral Control functions.
+ * + Interrupt Handling functions.
+ @verbatim
+ ==============================================================================
+ ##### PWR peripheral overview #####
+ ==============================================================================
+ [..]
+ (#) The Power control (PWR) provides an overview of the supply architecture
+ for the different power domains and of the supply configuration
+ controller.
+ In the H7 family, the number of power domains is different between
+ device lines. This difference is due to characteristics of each device.
+
+ (#) Domain architecture overview for the different H7 lines:
+ (+) Dual core lines are STM32H745, STM32H747, STM32H755 and STM32H757.
+ These devices have 3 power domains (D1, D2 and D3).
+ The domain D1 contains a CPU (Cortex-M7), a Flash memory and some
+ peripherals. The D2 domain contains peripherals and a CPU
+ (Cortex-M4). The D3 domain contains the system control, I/O logic
+ and low-power peripherals.
+ (+) STM32H743, STM32H753, STM32H742 and STM32H750 devices have 3 power
+ domains (D1, D2 and D3).
+ The domain D1 contains a CPU (Cortex-M7), a Flash memory and some
+ peripherals. The D2 domain contains peripherals. The D3 domains
+ contains the system control, I/O logic and low-power peripherals.
+ (+) STM32H7AxxQ, STM32H7BxxQ, STM32H7Axxx and STM32H7Bxxx devices have 2
+ power domains (CD and SRD).
+ The core domain (CD) contains a CPU (Cortex-M7), a Flash
+ memory and peripherals. The SmartRun domain contains the system
+ control, I/O logic and low-power peripherals.
+
+ (#) Every entity have low power mode as decribed below :
+ (#) The CPU low power modes are :
+ (+) CPU CRUN.
+ (+) CPU CSLEEP.
+ (+) CPU CSTOP.
+ (#) The domain low power modes are :
+ (+) DRUN.
+ (+) DSTOP.
+ (+) DSTANDBY.
+ (#) The SYSTEM low power modes are :
+ (+) RUN* : The Run* mode is entered after a POR reset and a wakeup from
+ Standby. In Run* mode, the performance is limited and the
+ system supply configuration shall be programmed. The system
+ enters Run mode only when the ACTVOSRDY bit in PWR control
+ status register 1 (PWR_CSR1) is set to 1.
+ (+) RUN.
+ (+) STOP.
+ (+) STANDBY.
+
+ ==============================================================================
+ ##### How to use this driver #####
+ ==============================================================================
+ [..]
+ (#) Power management peripheral is active by default at startup level in
+ STM32h7xx lines.
+
+ (#) Call HAL_PWR_EnableBkUpAccess() and HAL_PWR_DisableBkUpAccess() functions
+ to enable/disable access to the backup domain (RTC registers, RTC backup
+ data registers and backup SRAM).
+
+ (#) Call HAL_PWR_ConfigPVD() after setting parameters to be configured (event
+ mode and voltage threshold) in order to set up the Power Voltage Detector,
+ then use HAL_PWR_EnablePVD() and HAL_PWR_DisablePVD() functions to start
+ and stop the PVD detection.
+ (+) PVD level could be one of the following values :
+ (++) 1V95
+ (++) 2V1
+ (++) 2V25
+ (++) 2V4
+ (++) 2V55
+ (++) 2V7
+ (++) 2V85
+ (++) External voltage level
+
+ (#) Call HAL_PWR_EnableWakeUpPin() and HAL_PWR_DisableWakeUpPin() functions
+ with the right parameter to configure the wake up pin polarity (Low or
+ High) and to enable and disable it.
+
+ (#) Call HAL_PWR_EnterSLEEPMode() function to enter the current Core in SLEEP
+ mode. Wake-up from SLEEP mode could be following to an event or an
+ interrupt according to low power mode intrinsic request called (__WFI()
+ or __WFE()).
+ Please ensure to clear all CPU pending events by calling
+ HAL_PWREx_ClearPendingEvent() function when trying to enter the Cortex-Mx
+ in SLEEP mode with __WFE() entry.
+
+ (#) Call HAL_PWR_EnterSTOPMode() function to enter the whole system to Stop 0
+ mode for single core devices. For dual core devices, this API will enter
+ the domain (containing Cortex-Mx that executing this function) in DSTOP
+ mode. According to the used parameter, user could select the regulator to
+ be kept actif in low power mode and wake-up event type.
+ Please ensure to clear all CPU pending events by calling
+ HAL_PWREx_ClearPendingEvent() function when trying to enter the Cortex-Mx
+ in CSTOP mode with __WFE() entry.
+
+ (#) Call HAL_PWR_EnterSTANDBYMode() function to enter the whole system in
+ STANDBY mode for single core devices. For dual core devices, this API
+ will enter the domain (containing Cortex-Mx that executing this function)
+ in DSTANDBY mode.
+
+ (#) Call HAL_PWR_EnableSleepOnExit() and HAL_PWR_DisableSleepOnExit() APIs to
+ enable and disable the Cortex-Mx re-entring in SLEEP mode after an
+ interruption handling is over.
+
+ (#) Call HAL_PWR_EnableSEVOnPend() and HAL_PWR_DisableSEVOnPend() functions
+ to configure the Cortex-Mx to wake-up after any pending event / interrupt
+ even if it's disabled or has insufficient priority to cause exception
+ entry.
+
+ (#) Call HAL_PWR_PVD_IRQHandler() function to handle the PWR PVD interrupt
+ request.
+
+ *** PWR HAL driver macros list ***
+ =============================================
+ [..]
+ Below the list of most used macros in PWR HAL driver.
+
+ (+) __HAL_PWR_VOLTAGESCALING_CONFIG() : Configure the main internal
+ regulator output voltage.
+ (+) __HAL_PWR_GET_FLAG() : Get the PWR pending flags.
+ (+) __HAL_PWR_CLEAR_FLAG() : Clear the PWR pending flags.
+
+ @endverbatim
+ ******************************************************************************
+ * @attention
+ *
+ * <h2><center>© COPYRIGHT(c) 2017 STMicroelectronics.
+ * All rights reserved.</center></h2>
+ *
+ * This software component is licensed by ST under BSD 3-Clause license,
+ * the "License"; You may not use this file except in compliance with the
+ * License. You may obtain a copy of the License at:
+ * opensource.org/licenses/BSD-3-Clause
+ *
+ ******************************************************************************
+ */
+
+/* Includes ------------------------------------------------------------------*/
+#include "stm32h7xx_hal.h"
+
+/** @addtogroup STM32H7xx_HAL_Driver
+ * @{
+ */
+
+/** @defgroup PWR PWR
+ * @brief PWR HAL module driver
+ * @{
+ */
+
+#ifdef HAL_PWR_MODULE_ENABLED
+
+/* Private typedef -----------------------------------------------------------*/
+/* Private define ------------------------------------------------------------*/
+
+/** @addtogroup PWR_Private_Constants PWR Private Constants
+ * @{
+ */
+
+/** @defgroup PWR_PVD_Mode_Mask PWR PVD Mode Mask
+ * @{
+ */
+#if !defined (DUAL_CORE)
+#define PVD_MODE_IT (0x00010000U)
+#define PVD_MODE_EVT (0x00020000U)
+#endif /* !defined (DUAL_CORE) */
+
+#define PVD_RISING_EDGE (0x00000001U)
+#define PVD_FALLING_EDGE (0x00000002U)
+#define PVD_RISING_FALLING_EDGE (0x00000003U)
+/**
+ * @}
+ */
+
+/**
+ * @}
+ */
+
+/* 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 and De-Initialization Functions #####
+ ===============================================================================
+ [..]
+ This section provides functions allowing to deinitialize power peripheral.
+
+ [..]
+ After system reset, the backup domain (RTC registers, RTC backup data
+ registers and backup SRAM) is protected against possible unwanted write
+ accesses.
+ The HAL_PWR_EnableBkUpAccess() function enables the access to the backup
+ domain.
+ The HAL_PWR_DisableBkUpAccess() function disables the access to the backup
+ domain.
+
+@endverbatim
+ * @{
+ */
+
+/**
+ * @brief Deinitialize the HAL PWR peripheral registers to their default reset
+ * values.
+ * @note This functionality is not available in this product.
+ * The prototype is kept just to maintain compatibility with other
+ * products.
+ * @retval None.
+ */
+void HAL_PWR_DeInit (void)
+{
+}
+
+/**
+ * @brief Enable access to the backup domain (RTC registers, RTC backup data
+ * registers and backup SRAM).
+ * @note If the HSE divided by 2, 3, ..31 is used as the RTC clock, the
+ * Backup Domain Access should be kept enabled.
+ * @retval None.
+ */
+void HAL_PWR_EnableBkUpAccess (void)
+{
+ /* Enable access to RTC and backup registers */
+ SET_BIT (PWR->CR1, PWR_CR1_DBP);
+}
+
+/**
+ * @brief Disable access to the backup domain (RTC registers, RTC backup data
+ * registers and backup SRAM).
+ * @note If the HSE divided by 2, 3, ..31 is used as the RTC clock, the
+ * Backup Domain Access should be kept enabled.
+ * @retval None.
+ */
+void HAL_PWR_DisableBkUpAccess (void)
+{
+ /* Disable access to RTC and backup registers */
+ CLEAR_BIT (PWR->CR1, PWR_CR1_DBP);
+}
+/**
+ * @}
+ */
+
+/** @defgroup PWR_Exported_Functions_Group2 Peripheral Control Functions
+ * @brief Power Control functions
+ *
+@verbatim
+ ===============================================================================
+ ##### Peripheral Control Functions #####
+ ===============================================================================
+ [..]
+ This section provides functions allowing to control power peripheral.
+
+ *** PVD configuration ***
+ =========================
+ [..]
+ (+) The PVD is used to monitor the VDD power supply by comparing it to a
+ threshold selected by the PVD Level (PLS[7:0] bits in the PWR_CR1
+ register).
+
+ (+) A PVDO flag is available to indicate if VDD is higher or lower
+ than the PVD threshold. This event is internally connected to the EXTI
+ line 16 to generate an interrupt if enabled.
+ It is configurable through __HAL_PWR_PVD_EXTI_ENABLE_IT() macro.
+
+ (+) The PVD is stopped in STANDBY mode.
+
+ *** Wake-up pin configuration ***
+ =================================
+ [..]
+ (+) Wake-up pin is used to wake up the system from STANDBY mode.
+ The pin pull is configurable through the WKUPEPR register to be in
+ No-pull, Pull-up and Pull-down.
+ The pin polarity is configurable through the WKUPEPR register to be
+ active on rising or falling edges.
+
+ (+) There are up to six Wake-up pin in the STM32H7 devices family.
+
+ *** Low Power modes configuration ***
+ =====================================
+ [..]
+ The device present 3 principles low-power modes features:
+ (+) SLEEP mode : Cortex-Mx is stopped and all PWR domains are remaining
+ active (Powered and Clocked).
+
+ (+) STOP mode : Cortex-Mx is stopped, clocks are stopped and the
+ regulator is running. The Main regulator or the LP
+ regulator could be selected.
+
+ (+) STANDBY mode : All PWR domains enter DSTANDBY mode and the VCORE
+ supply regulator is powered off.
+
+ *** SLEEP mode ***
+ ==================
+ [..]
+ (+) Entry:
+ The SLEEP mode is entered by using the HAL_PWR_EnterSLEEPMode(Regulator,
+ SLEEPEntry) function.
+
+ (++) PWR_SLEEPENTRY_WFI: enter SLEEP mode with WFI instruction.
+ (++) PWR_SLEEPENTRY_WFE: enter SLEEP mode with WFE instruction.
+
+ -@@- The Regulator parameter is not used for the STM32H7 family
+ and is kept as parameter just to maintain compatibility with the
+ lower power families (STM32L).
+
+ (+) Exit:
+ Any peripheral interrupt acknowledged by the nested vectored interrupt
+ controller (NVIC) can wake up the device from SLEEP mode.
+
+ *** STOP mode ***
+ =================
+ [..]
+ In system STOP mode, all clocks in the 1.2V 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 in STOP mode, FLASH can be powered off before
+ entering the STOP mode using the HAL_PWREx_EnableFlashPowerDown() function.
+ It can be switched on again by software after exiting the STOP mode using
+ the HAL_PWREx_DisableFlashPowerDown() function.
+
+ (+) Entry:
+ The STOP mode is entered using the HAL_PWR_EnterSTOPMode(Regulator,
+ STOPEntry) function with:
+
+ (++) Regulator:
+ (+++) PWR_MAINREGULATOR_ON: Main regulator ON.
+ (+++) PWR_LOWPOWERREGULATOR_ON: Low Power regulator ON.
+
+ (++) STOPEntry:
+ (+++) 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.
+
+ *** STANDBY mode ***
+ ====================
+ [..]
+ (+)
+ The system STANDBY mode allows to achieve the lowest power consumption.
+ It is based on the Cortex-Mx deep SLEEP mode, with the voltage regulator
+ disabled. The system 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 or falling 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 or a time-stamp 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_RTCEx_SetTimeStamp_IT() or
+ HAL_RTCEx_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_RTCEx_SetWakeUpTimer_IT() function.
+
+@endverbatim
+ * @{
+ */
+
+/**
+ * @brief Configure the event mode and the voltage threshold detected by the
+ * Programmable Voltage Detector(PVD).
+ * @param sConfigPVD : Pointer to an PWR_PVDTypeDef structure that contains
+ * the configuration information for the PVD.
+ * @note Refer to the electrical characteristics of your device datasheet for
+ * more details about the voltage threshold corresponding to each
+ * detection level.
+ * @note For dual core devices, please ensure to configure the EXTI lines for
+ * the different Cortex-Mx through PWR_Exported_Macro provided by this
+ * driver. All combination are allowed: wake up only Cortex-M7, wake up
+ * only Cortex-M4 or wake up Cortex-M7 and Cortex-M4.
+ * @retval None.
+ */
+void HAL_PWR_ConfigPVD (PWR_PVDTypeDef *sConfigPVD)
+{
+ /* Check the PVD configuration parameter */
+ if (sConfigPVD == NULL)
+ {
+ return;
+ }
+
+ /* Check the parameters */
+ assert_param (IS_PWR_PVD_LEVEL (sConfigPVD->PVDLevel));
+ assert_param (IS_PWR_PVD_MODE (sConfigPVD->Mode));
+
+ /* Set PLS[7:5] bits according to PVDLevel value */
+ MODIFY_REG (PWR->CR1, PWR_CR1_PLS, sConfigPVD->PVDLevel);
+
+ /* Clear previous config */
+#if !defined (DUAL_CORE)
+ __HAL_PWR_PVD_EXTI_DISABLE_EVENT ();
+ __HAL_PWR_PVD_EXTI_DISABLE_IT ();
+#endif /* !defined (DUAL_CORE) */
+
+ __HAL_PWR_PVD_EXTI_DISABLE_RISING_EDGE ();
+ __HAL_PWR_PVD_EXTI_DISABLE_FALLING_EDGE ();
+
+#if !defined (DUAL_CORE)
+ /* Interrupt mode configuration */
+ if ((sConfigPVD->Mode & PVD_MODE_IT) == PVD_MODE_IT)
+ {
+ __HAL_PWR_PVD_EXTI_ENABLE_IT ();
+ }
+
+ /* Event mode configuration */
+ if ((sConfigPVD->Mode & PVD_MODE_EVT) == PVD_MODE_EVT)
+ {
+ __HAL_PWR_PVD_EXTI_ENABLE_EVENT ();
+ }
+#endif /* !defined (DUAL_CORE) */
+
+ /* Rising edge configuration */
+ if ((sConfigPVD->Mode & PVD_RISING_EDGE) == PVD_RISING_EDGE)
+ {
+ __HAL_PWR_PVD_EXTI_ENABLE_RISING_EDGE ();
+ }
+
+ /* Falling edge configuration */
+ if ((sConfigPVD->Mode & PVD_FALLING_EDGE) == PVD_FALLING_EDGE)
+ {
+ __HAL_PWR_PVD_EXTI_ENABLE_FALLING_EDGE ();
+ }
+}
+
+/**
+ * @brief Enable the Programmable Voltage Detector (PVD).
+ * @retval None.
+ */
+void HAL_PWR_EnablePVD (void)
+{
+ /* Enable the power voltage detector */
+ SET_BIT (PWR->CR1, PWR_CR1_PVDEN);
+}
+
+/**
+ * @brief Disable the Programmable Voltage Detector (PVD).
+ * @retval None.
+ */
+void HAL_PWR_DisablePVD (void)
+{
+ /* Disable the power voltage detector */
+ CLEAR_BIT (PWR->CR1, PWR_CR1_PVDEN);
+}
+
+/**
+ * @brief Enable the WakeUp PINx functionality.
+ * @param WakeUpPinPolarity : Specifies which Wake-Up pin to enable.
+ * This parameter can be one of the following legacy values, which
+ * sets the default (rising edge):
+ * @arg PWR_WAKEUP_PIN1, PWR_WAKEUP_PIN2, PWR_WAKEUP_PIN3,
+ * PWR_WAKEUP_PIN4, PWR_WAKEUP_PIN5, PWR_WAKEUP_PIN6.
+ * or one of the following values where the user can explicitly states
+ * the enabled pin and the chosen polarity:
+ * @arg PWR_WAKEUP_PIN1_HIGH, PWR_WAKEUP_PIN1_LOW,
+ * PWR_WAKEUP_PIN2_HIGH, PWR_WAKEUP_PIN2_LOW,
+ * PWR_WAKEUP_PIN3_HIGH, PWR_WAKEUP_PIN3_LOW,
+ * PWR_WAKEUP_PIN4_HIGH, PWR_WAKEUP_PIN4_LOW,
+ * PWR_WAKEUP_PIN5_HIGH, PWR_WAKEUP_PIN5_LOW,
+ * PWR_WAKEUP_PIN6_HIGH, PWR_WAKEUP_PIN6_LOW.
+ * @note PWR_WAKEUP_PINx and PWR_WAKEUP_PINx_HIGH are equivalent.
+ * @retval None.
+ */
+void HAL_PWR_EnableWakeUpPin (uint32_t WakeUpPinPolarity)
+{
+ /* Check the parameters */
+ assert_param (IS_PWR_WAKEUP_PIN (WakeUpPinPolarity));
+
+ /*
+ Enable and Specify the Wake-Up pin polarity and the pull configuration
+ for the event detection (rising or falling edge).
+ */
+ MODIFY_REG (PWR->WKUPEPR, PWR_EWUP_MASK, WakeUpPinPolarity);
+}
+
+/**
+ * @brief Disable 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,
+ * PWR_WAKEUP_PIN4, PWR_WAKEUP_PIN5, PWR_WAKEUP_PIN6,
+ * PWR_WAKEUP_PIN1_HIGH, PWR_WAKEUP_PIN1_LOW,
+ * PWR_WAKEUP_PIN2_HIGH, PWR_WAKEUP_PIN2_LOW,
+ * PWR_WAKEUP_PIN3_HIGH, PWR_WAKEUP_PIN3_LOW,
+ * PWR_WAKEUP_PIN4_HIGH, PWR_WAKEUP_PIN4_LOW,
+ * PWR_WAKEUP_PIN5_HIGH, PWR_WAKEUP_PIN5_LOW,
+ * PWR_WAKEUP_PIN6_HIGH, PWR_WAKEUP_PIN6_LOW.
+ * @retval None.
+ */
+void HAL_PWR_DisableWakeUpPin (uint32_t WakeUpPinx)
+{
+ /* Check the parameters */
+ assert_param (IS_PWR_WAKEUP_PIN (WakeUpPinx));
+
+ /* Disable the wake up pin selected */
+ CLEAR_BIT (PWR->WKUPEPR, (PWR_WKUPEPR_WKUPEN & WakeUpPinx));
+}
+
+/**
+ * @brief Enter the current core in SLEEP mode (CSLEEP).
+ * @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.
+ * @note This parameter is not used for the STM32H7 family and is kept as
+ * parameter just to maintain compatibility with the lower power
+ * families.
+ * @param SLEEPEntry : Specifies if SLEEP mode is entered with WFI or WFE
+ * intrinsic instruction.
+ * 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.
+ * @note Ensure to clear pending events before calling this API through
+ * HAL_PWREx_ClearPendingEvent() when the SLEEP entry is WFE.
+ * @retval None.
+ */
+void HAL_PWR_EnterSLEEPMode (uint32_t Regulator, uint8_t SLEEPEntry)
+{
+ /* Check the parameters */
+ assert_param (IS_PWR_REGULATOR (Regulator));
+ assert_param (IS_PWR_SLEEP_ENTRY (SLEEPEntry));
+
+ /* Clear SLEEPDEEP bit of Cortex System Control Register */
+ CLEAR_BIT (SCB->SCR, SCB_SCR_SLEEPDEEP_Msk);
+
+ /* Select SLEEP mode entry */
+ if (SLEEPEntry == PWR_SLEEPENTRY_WFI)
+ {
+ /* Request Wait For Interrupt */
+ __WFI ();
+ }
+ else
+ {
+ /* Request Wait For Event */
+ __WFE ();
+ }
+}
+
+/**
+ * @brief Enter STOP mode.
+ * @note For single core devices, this API will enter the system in STOP mode
+ * with all domains in DSTOP, if RUN_D3/RUN_SRD bit in CPUCR regiter is
+ * cleared.
+ * For dual core devices, this API will enter the domain (containing
+ * Cortex-Mx that executing this function) in DSTOP mode. If all
+ * Cortex-Mx domains are in DSTOP and RUN_D3 bit in CPUCR register is
+ * cleared, all the system will enter in STOP mode.
+ * @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
+ * intrinsic 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.
+ * @note In System STOP mode, all I/O pins keep the same state as in Run mode.
+ * @note When exiting System STOP mode by issuing an interrupt or a wakeup
+ * event, the HSI RC oscillator is selected as default system wakeup
+ * clock.
+ * @note In System STOP mode, when the voltage regulator operates in low
+ * power mode, an additional startup delay is incurred when the system
+ * is waking up. By keeping the internal regulator ON during STOP mode,
+ * the consumption is higher although the startup time is reduced.
+ * @retval None.
+ */
+void HAL_PWR_EnterSTOPMode (uint32_t Regulator, uint8_t STOPEntry)
+{
+ /* Check the parameters */
+ assert_param (IS_PWR_REGULATOR (Regulator));
+ assert_param (IS_PWR_STOP_ENTRY (STOPEntry));
+
+ /* Select the regulator state in STOP mode */
+ MODIFY_REG (PWR->CR1, PWR_CR1_LPDS, Regulator);
+
+ /* Configure the PWR mode for the different Domains */
+#if defined (DUAL_CORE)
+ /* Check CPU ID */
+ if (HAL_GetCurrentCPUID () == CM7_CPUID)
+ {
+ /* Keep DSTOP mode when Cortex-M7 enters DEEP-SLEEP */
+ CLEAR_BIT (PWR->CPUCR, (PWR_CPUCR_PDDS_D1 | PWR_CPUCR_PDDS_D3));
+ }
+ else
+ {
+ /* Keep DSTOP mode when Cortex-M4 enters DEEP-SLEEP */
+ CLEAR_BIT (PWR->CPUCR, (PWR_CPUCR_PDDS_D2 | PWR_CPUCR_PDDS_D3));
+ }
+#else /* Single core devices */
+ /* Keep DSTOP mode when Cortex-M7 enter in DEEP-SLEEP */
+ CLEAR_BIT (PWR->CPUCR, (PWR_CPUCR_PDDS_D1 | PWR_CPUCR_PDDS_D3));
+
+#if defined (PWR_CPUCR_PDDS_D2)
+ /* Keep DSTOP mode when Cortex-M7 enter in DEEP-SLEEP */
+ CLEAR_BIT (PWR->CPUCR, PWR_CPUCR_PDDS_D2);
+#endif /* PWR_CPUCR_PDDS_D2 */
+#endif /* defined (DUAL_CORE) */
+
+ /* Set SLEEPDEEP bit of Cortex System Control Register */
+ SET_BIT (SCB->SCR, SCB_SCR_SLEEPDEEP_Msk);
+
+ /* Ensure that all instructions are done before entering STOP mode */
+ __DSB ();
+ __ISB ();
+
+ /* Select STOP mode entry */
+ if (STOPEntry == PWR_STOPENTRY_WFI)
+ {
+ /* Request Wait For Interrupt */
+ __WFI ();
+ }
+ else
+ {
+ /* Request Wait For Event */
+ __WFE ();
+ }
+
+ /* Clear SLEEPDEEP bit of Cortex-Mx in the System Control Register */
+ CLEAR_BIT (SCB->SCR, SCB_SCR_SLEEPDEEP_Msk);
+}
+
+/**
+ * @brief Enter STANDBY mode.
+ * @note For single core devices, this API will enter the system in STANDBY
+ * mode with all domains in DSTANDBY, if RUN_D3/RUN_SRD bit in CPUCR
+ * regiter is cleared.
+ * For dual core devices, this API will enter the domain (containing
+ * Cortex-Mx that executing this function) in DSTANDBY mode. If all
+ * Cortex-Mx domains are in DSTANDBY and RUN_D3 bit in CPUCR register
+ * is cleared, all the system will enter in STANDBY mode.
+ * @note The system enters Standby mode only when all domains are in DSTANDBY.
+ * @note When the System exit STANDBY mode by issuing an interrupt or a
+ * wakeup event, the HSI RC oscillator is selected as system clock.
+ * @retval None.
+ */
+void HAL_PWR_EnterSTANDBYMode (void)
+{
+ /* Configure the PWR mode for the different Domains */
+#if defined (DUAL_CORE)
+ /* Check CPU ID */
+ if (HAL_GetCurrentCPUID () == CM7_CPUID)
+ {
+ /* Enter DSTANDBY mode when Cortex-M7 enters DEEP-SLEEP */
+ SET_BIT (PWR->CPUCR, (PWR_CPUCR_PDDS_D1 | PWR_CPUCR_PDDS_D3));
+ SET_BIT (PWR->CPU2CR, (PWR_CPU2CR_PDDS_D1 | PWR_CPU2CR_PDDS_D3));
+ }
+ else
+ {
+ /* Enter DSTANDBY mode when Cortex-M4 enters DEEP-SLEEP */
+ SET_BIT (PWR->CPUCR, (PWR_CPUCR_PDDS_D2 | PWR_CPUCR_PDDS_D3));
+ SET_BIT (PWR->CPU2CR, (PWR_CPU2CR_PDDS_D2 | PWR_CPU2CR_PDDS_D3));
+ }
+#else /* Single core devices */
+ /* Enter DSTANDBY mode when Cortex-M7 enters DEEP-SLEEP */
+ SET_BIT (PWR->CPUCR, (PWR_CPUCR_PDDS_D1 | PWR_CPUCR_PDDS_D3));
+
+#if defined (PWR_CPUCR_PDDS_D2)
+ /* Enter DSTANDBY mode when Cortex-M7 enters DEEP-SLEEP */
+ SET_BIT (PWR->CPUCR, PWR_CPUCR_PDDS_D2);
+#endif /* PWR_CPUCR_PDDS_D2 */
+#endif /* defined (DUAL_CORE) */
+
+ /* Set SLEEPDEEP bit of Cortex System Control Register */
+ SET_BIT (SCB->SCR, SCB_SCR_SLEEPDEEP_Msk);
+
+ /* Ensure that all instructions are done before entering STOP mode */
+ __DSB ();
+ __ISB ();
+
+ /* This option is used to ensure that store operations are completed */
+#if defined (__CC_ARM)
+ __force_stores();
+#endif /* defined (__CC_ARM) */
+
+ /* Request Wait For Interrupt */
+ __WFI ();
+}
+
+/**
+ * @brief Indicate Sleep-On-Exit feature when returning from Handler mode to
+ * Thread mode.
+ * @note Set SLEEPONEXIT bit of SCR register. When this bit is set, the
+ * processor re-enters SLEEP mode when an interruption handling is over.
+ * Setting this bit is useful when the processor is expected to run
+ * only on interruptions handling.
+ * @retval None.
+ */
+void HAL_PWR_EnableSleepOnExit (void)
+{
+ /* Set SLEEPONEXIT bit of Cortex-Mx System Control Register */
+ SET_BIT (SCB->SCR, SCB_SCR_SLEEPONEXIT_Msk);
+}
+
+/**
+ * @brief Disable Sleep-On-Exit feature when returning from Handler mode to
+ * Thread mode.
+ * @note Clears SLEEPONEXIT bit of SCR register. When this bit is set, the
+ * processor re-enters SLEEP mode when an interruption handling is over.
+ * @retval None
+ */
+void HAL_PWR_DisableSleepOnExit (void)
+{
+ /* Clear SLEEPONEXIT bit of Cortex-Mx System Control Register */
+ CLEAR_BIT (SCB->SCR, SCB_SCR_SLEEPONEXIT_Msk);
+}
+
+/**
+ * @brief Enable CORTEX SEVONPEND feature.
+ * @note Sets SEVONPEND bit of SCR register. When this bit is set, any
+ * pending event / interrupt even if it's disabled or has insufficient
+ * priority to cause exception entry wakes up the Cortex-Mx.
+ * @retval None.
+ */
+void HAL_PWR_EnableSEVOnPend (void)
+{
+ /* Set SEVONPEND bit of Cortex-Mx System Control Register */
+ SET_BIT (SCB->SCR, SCB_SCR_SEVONPEND_Msk);
+}
+
+/**
+ * @brief Disable CORTEX SEVONPEND feature.
+ * @note Resets SEVONPEND bit of SCR register. When this bit is reset, only
+ * enabled pending causes exception entry wakes up the Cortex-Mx.
+ * @retval None.
+ */
+void HAL_PWR_DisableSEVOnPend (void)
+{
+ /* Clear SEVONPEND bit of Cortex System Control Register */
+ CLEAR_BIT (SCB->SCR, SCB_SCR_SEVONPEND_Msk);
+}
+/**
+ * @}
+ */
+
+/** @defgroup PWR_Exported_Functions_Group3 Interrupt Handling Functions
+ * @brief Interrupt Handling functions
+ *
+@verbatim
+ ===============================================================================
+ ##### Interrupt Handling Functions #####
+ ===============================================================================
+ [..]
+ This section provides functions allowing to handle the PVD pending
+ interrupts.
+
+@endverbatim
+ * @{
+ */
+
+/**
+ * @brief This function handles the PWR PVD interrupt request.
+ * @note This API should be called under the PVD_AVD_IRQHandler().
+ * @retval None.
+ */
+void HAL_PWR_PVD_IRQHandler (void)
+{
+#if defined (DUAL_CORE)
+ /* Check Cortex-Mx ID */
+ if (HAL_GetCurrentCPUID () == CM7_CPUID)
+ {
+ /* Check PWR EXTI D1 flag */
+ if(__HAL_PWR_PVD_EXTI_GET_FLAG () != 0U)
+ {
+ /* Clear PWR EXTI D1 pending bit */
+ __HAL_PWR_PVD_EXTI_CLEAR_FLAG ();
+
+ /* PWR PVD interrupt user callback */
+ HAL_PWR_PVDCallback ();
+ }
+ }
+ else
+ {
+ /* Check PWR EXTI D2 flag */
+ if (__HAL_PWR_PVD_EXTID2_GET_FLAG () != 0U)
+ {
+ /* Clear PWR EXTI D2 pending bit */
+ __HAL_PWR_PVD_EXTID2_CLEAR_FLAG ();
+
+ /* PWR PVD interrupt user callback */
+ HAL_PWR_PVDCallback ();
+ }
+ }
+#else /* Single core devices */
+ /* PVD EXTI line interrupt detected */
+ if (__HAL_PWR_PVD_EXTI_GET_FLAG () != 0U)
+ {
+ /* Clear PWR EXTI pending bit */
+ __HAL_PWR_PVD_EXTI_CLEAR_FLAG ();
+
+ /* PWR PVD interrupt user callback */
+ HAL_PWR_PVDCallback ();
+ }
+#endif /* defined (DUAL_CORE) */
+}
+
+/**
+ * @brief PWR PVD interrupt callback.
+ * @retval None.
+ */
+__weak void HAL_PWR_PVDCallback (void)
+{
+ /* NOTE : This function should not be modified, when the callback is needed,
+ the HAL_PWR_PVDCallback can be implemented in the user file
+ */
+}
+
+/**
+ * @}
+ */
+
+/**
+ * @}
+ */
+
+#endif /* HAL_PWR_MODULE_ENABLED */
+/**
+ * @}
+ */
+
+/**
+ * @}
+ */
+
+/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
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