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Improve communication stability: In case e.g. the bluetooth module has just been started some 'noice' characters may be in the receive buffer causing an error in the modul responds function. In case the legth of the response is unexpected then the buffer will be evaluated till it is empty or an matching answer is found.
author Ideenmodellierer
date Sun, 01 Sep 2024 21:38:06 +0200
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/**
  ******************************************************************************
  * @file    stm32f4xx_hal_pwr_ex.h
  * @author  MCD Application Team
  * @brief   Header file of PWR HAL Extension module.
  ******************************************************************************
  * @attention
  *
  * <h2><center>&copy; COPYRIGHT(c) 2017 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.
  *
  ******************************************************************************
  */ 

/* Define to prevent recursive inclusion -------------------------------------*/
#ifndef __STM32F4xx_HAL_PWR_EX_H
#define __STM32F4xx_HAL_PWR_EX_H

#ifdef __cplusplus
 extern "C" {
#endif

/* Includes ------------------------------------------------------------------*/
#include "stm32f4xx_hal_def.h"

/** @addtogroup STM32F4xx_HAL_Driver
  * @{
  */

/** @addtogroup PWREx
  * @{
  */ 

/* Exported types ------------------------------------------------------------*/ 
/* Exported constants --------------------------------------------------------*/
/** @defgroup PWREx_Exported_Constants PWREx Exported Constants
  * @{
  */
#if defined(STM32F427xx) || defined(STM32F437xx) || defined(STM32F429xx) || defined(STM32F439xx) ||\
    defined(STM32F446xx) || defined(STM32F469xx) || defined(STM32F479xx)
   
/** @defgroup PWREx_Regulator_state_in_UnderDrive_mode PWREx Regulator state in UnderDrive mode
  * @{
  */
#define PWR_MAINREGULATOR_UNDERDRIVE_ON                       PWR_CR_MRUDS
#define PWR_LOWPOWERREGULATOR_UNDERDRIVE_ON                   ((uint32_t)(PWR_CR_LPDS | PWR_CR_LPUDS))
/**
  * @}
  */ 
  
/** @defgroup PWREx_Over_Under_Drive_Flag PWREx Over Under Drive Flag
  * @{
  */
#define PWR_FLAG_ODRDY                  PWR_CSR_ODRDY
#define PWR_FLAG_ODSWRDY                PWR_CSR_ODSWRDY
#define PWR_FLAG_UDRDY                  PWR_CSR_UDSWRDY
/**
  * @}
  */
#endif /* STM32F427xx || STM32F437xx || STM32F429xx || STM32F439xx || STM32F446xx || STM32F469xx || STM32F479xx */

/** @defgroup PWREx_Regulator_Voltage_Scale PWREx Regulator Voltage Scale
  * @{
  */
#if defined(STM32F405xx) || defined(STM32F407xx) || defined(STM32F415xx) || defined(STM32F417xx)   
#define PWR_REGULATOR_VOLTAGE_SCALE1         PWR_CR_VOS             /* Scale 1 mode(default value at reset): the maximum value of fHCLK = 168 MHz. */
#define PWR_REGULATOR_VOLTAGE_SCALE2         0x00000000U            /* Scale 2 mode: the maximum value of fHCLK = 144 MHz. */
#else
#define PWR_REGULATOR_VOLTAGE_SCALE1         PWR_CR_VOS             /* Scale 1 mode(default value at reset): the maximum value of fHCLK is 168 MHz. It can be extended to
                                                                       180 MHz by activating the over-drive mode. */
#define PWR_REGULATOR_VOLTAGE_SCALE2         PWR_CR_VOS_1           /* Scale 2 mode: the maximum value of fHCLK is 144 MHz. It can be extended to
                                                                       168 MHz by activating the over-drive mode. */
#define PWR_REGULATOR_VOLTAGE_SCALE3         PWR_CR_VOS_0           /* Scale 3 mode: the maximum value of fHCLK is 120 MHz. */
#endif /* STM32F405xx || STM32F407xx || STM32F415xx || STM32F417xx */ 
/**
  * @}
  */
#if defined(STM32F410Tx) || defined(STM32F410Cx) || defined(STM32F410Rx) || defined(STM32F446xx) || defined(STM32F412Zx) || defined(STM32F412Vx) || \
    defined(STM32F412Rx) || defined(STM32F412Cx) || defined(STM32F413xx) || defined(STM32F423xx)
/** @defgroup PWREx_WakeUp_Pins PWREx WakeUp Pins
  * @{
  */
#define PWR_WAKEUP_PIN2                 0x00000080U
#if defined(STM32F410Tx) || defined(STM32F410Cx) || defined(STM32F410Rx) || defined(STM32F412Zx) || defined(STM32F412Vx) || \
    defined(STM32F412Rx) || defined(STM32F412Cx) || defined(STM32F413xx) || defined(STM32F423xx) 
#define PWR_WAKEUP_PIN3                 0x00000040U
#endif /* STM32F410xx || STM32F412Zx || STM32F412Vx || STM32F412Rx || STM32F412Zx || STM32F412Vx || \
          STM32F412Rx || STM32F412Cx || STM32F413xx || STM32F423xx */
/**
  * @}
  */   
#endif /* STM32F410xx || STM32F446xx || STM32F412Zx || STM32F412Vx || STM32F412Rx || STM32F412Cx ||
          STM32F413xx || STM32F423xx */

/**
  * @}
  */ 
  
/* Exported macro ------------------------------------------------------------*/
/** @defgroup PWREx_Exported_Constants PWREx Exported Constants
  *  @{
  */

#if defined(STM32F405xx) || defined(STM32F407xx) || defined(STM32F415xx) || defined(STM32F417xx)
/** @brief  macros configure the main internal regulator output voltage.
  * @param  __REGULATOR__ specifies the regulator output voltage to achieve
  *         a tradeoff between performance and power consumption when the device does
  *         not operate at the maximum frequency (refer to the datasheets for more details).
  *          This parameter can be one of the following values:
  *            @arg PWR_REGULATOR_VOLTAGE_SCALE1: Regulator voltage output Scale 1 mode
  *            @arg PWR_REGULATOR_VOLTAGE_SCALE2: Regulator voltage output Scale 2 mode
  * @retval None
  */
#define __HAL_PWR_VOLTAGESCALING_CONFIG(__REGULATOR__) do {                                                     \
                                                            __IO uint32_t tmpreg = 0x00U;                        \
                                                            MODIFY_REG(PWR->CR, PWR_CR_VOS, (__REGULATOR__));   \
                                                            /* Delay after an RCC peripheral clock enabling */  \
                                                            tmpreg = READ_BIT(PWR->CR, PWR_CR_VOS);             \
                                                            UNUSED(tmpreg);                                     \
                                                          } while(0U)
#else
/** @brief  macros configure the main internal regulator output voltage.
  * @param  __REGULATOR__ specifies the regulator output voltage to achieve
  *         a tradeoff between performance and power consumption when the device does
  *         not operate at the maximum frequency (refer to the datasheets for more details).
  *          This parameter can be one of the following values:
  *            @arg PWR_REGULATOR_VOLTAGE_SCALE1: Regulator voltage output Scale 1 mode
  *            @arg PWR_REGULATOR_VOLTAGE_SCALE2: Regulator voltage output Scale 2 mode
  *            @arg PWR_REGULATOR_VOLTAGE_SCALE3: Regulator voltage output Scale 3 mode
  * @retval None
  */
#define __HAL_PWR_VOLTAGESCALING_CONFIG(__REGULATOR__) do {                                                     \
                                                            __IO uint32_t tmpreg = 0x00U;                        \
                                                            MODIFY_REG(PWR->CR, PWR_CR_VOS, (__REGULATOR__));   \
                                                            /* Delay after an RCC peripheral clock enabling */  \
                                                            tmpreg = READ_BIT(PWR->CR, PWR_CR_VOS);             \
                                                            UNUSED(tmpreg);                                     \
                                                          } while(0U)
#endif /* STM32F405xx || STM32F407xx || STM32F415xx || STM32F417xx */ 

#if defined(STM32F427xx) || defined(STM32F437xx) || defined(STM32F429xx) || defined(STM32F439xx) ||\
    defined(STM32F446xx) || defined(STM32F469xx) || defined(STM32F479xx)
/** @brief Macros to enable or disable the Over drive mode.
  * @note  These macros can be used only for STM32F42xx/STM3243xx devices.
  */
#define __HAL_PWR_OVERDRIVE_ENABLE() (*(__IO uint32_t *) CR_ODEN_BB = ENABLE)
#define __HAL_PWR_OVERDRIVE_DISABLE() (*(__IO uint32_t *) CR_ODEN_BB = DISABLE)

/** @brief Macros to enable or disable the Over drive switching.
  * @note  These macros can be used only for STM32F42xx/STM3243xx devices. 
  */
#define __HAL_PWR_OVERDRIVESWITCHING_ENABLE() (*(__IO uint32_t *) CR_ODSWEN_BB = ENABLE)
#define __HAL_PWR_OVERDRIVESWITCHING_DISABLE() (*(__IO uint32_t *) CR_ODSWEN_BB = DISABLE)

/** @brief Macros to enable or disable the Under drive mode.
  * @note  This mode is enabled only with STOP low power mode.
  *        In this mode, the 1.2V domain is preserved in reduced leakage mode. This 
  *        mode is only available when the main regulator or the low power regulator 
  *        is in low voltage mode.      
  * @note  If the Under-drive mode was enabled, it is automatically disabled after 
  *        exiting Stop mode. 
  *        When the voltage regulator operates in Under-drive mode, an additional  
  *        startup delay is induced when waking up from Stop mode.
  */
#define __HAL_PWR_UNDERDRIVE_ENABLE() (PWR->CR |= (uint32_t)PWR_CR_UDEN)
#define __HAL_PWR_UNDERDRIVE_DISABLE() (PWR->CR &= (uint32_t)(~PWR_CR_UDEN))

/** @brief  Check PWR flag is set or not.
  * @note   These macros can be used only for STM32F42xx/STM3243xx devices.
  * @param  __FLAG__ specifies the flag to check.
  *         This parameter can be one of the following values:
  *            @arg PWR_FLAG_ODRDY: This flag indicates that the Over-drive mode
  *                                 is ready 
  *            @arg PWR_FLAG_ODSWRDY: This flag indicates that the Over-drive mode
  *                                   switching is ready  
  *            @arg PWR_FLAG_UDRDY: This flag indicates that the Under-drive mode
  *                                 is enabled in Stop mode
  * @retval The new state of __FLAG__ (TRUE or FALSE).
  */
#define __HAL_PWR_GET_ODRUDR_FLAG(__FLAG__) ((PWR->CSR & (__FLAG__)) == (__FLAG__))

/** @brief Clear the Under-Drive Ready flag.
  * @note  These macros can be used only for STM32F42xx/STM3243xx devices.
  */
#define __HAL_PWR_CLEAR_ODRUDR_FLAG() (PWR->CSR |= PWR_FLAG_UDRDY)

#endif /* STM32F427xx || STM32F437xx || STM32F429xx || STM32F439xx || STM32F446xx || STM32F469xx || STM32F479xx */
/**
  * @}
  */

/* Exported functions --------------------------------------------------------*/
/** @addtogroup PWREx_Exported_Functions PWREx Exported Functions
  *  @{
  */
 
/** @addtogroup PWREx_Exported_Functions_Group1
  * @{
  */
void HAL_PWREx_EnableFlashPowerDown(void);
void HAL_PWREx_DisableFlashPowerDown(void); 
HAL_StatusTypeDef HAL_PWREx_EnableBkUpReg(void);
HAL_StatusTypeDef HAL_PWREx_DisableBkUpReg(void); 
uint32_t HAL_PWREx_GetVoltageRange(void);
HAL_StatusTypeDef HAL_PWREx_ControlVoltageScaling(uint32_t VoltageScaling);

#if defined(STM32F469xx) || defined(STM32F479xx)
void HAL_PWREx_EnableWakeUpPinPolarityRisingEdge(void);
void HAL_PWREx_EnableWakeUpPinPolarityFallingEdge(void);
#endif /* STM32F469xx || STM32F479xx */

#if defined(STM32F410Tx) || defined(STM32F410Cx) || defined(STM32F410Rx) || defined(STM32F401xC) ||\
    defined(STM32F401xE) || defined(STM32F411xE) || defined(STM32F412Zx) || defined(STM32F412Vx) ||\
    defined(STM32F412Rx) || defined(STM32F412Cx) || defined(STM32F413xx) || defined(STM32F423xx)
void HAL_PWREx_EnableMainRegulatorLowVoltage(void);
void HAL_PWREx_DisableMainRegulatorLowVoltage(void);
void HAL_PWREx_EnableLowRegulatorLowVoltage(void);
void HAL_PWREx_DisableLowRegulatorLowVoltage(void);
#endif /* STM32F410xx || STM32F401xC || STM32F401xE || STM32F411xE || STM32F412Zx || STM32F412Vx ||\
          STM32F412Rx || STM32F412Cx || STM32F413xx || STM32F423xx */

#if defined(STM32F427xx) || defined(STM32F437xx) || defined(STM32F429xx) || defined(STM32F439xx) || defined(STM32F446xx) ||\
    defined(STM32F469xx) || defined(STM32F479xx)
HAL_StatusTypeDef HAL_PWREx_EnableOverDrive(void);
HAL_StatusTypeDef HAL_PWREx_DisableOverDrive(void);
HAL_StatusTypeDef HAL_PWREx_EnterUnderDriveSTOPMode(uint32_t Regulator, uint8_t STOPEntry);
#endif /* STM32F427xx || STM32F437xx || STM32F429xx || STM32F439xx || STM32F446xx || STM32F469xx || STM32F479xx */

/**
  * @}
  */

/**
  * @}
  */
/* Private types -------------------------------------------------------------*/
/* Private variables ---------------------------------------------------------*/
/* Private constants ---------------------------------------------------------*/
/** @defgroup PWREx_Private_Constants PWREx Private Constants
  * @{
  */

/** @defgroup PWREx_register_alias_address PWREx Register alias address
  * @{
  */
/* ------------- PWR registers bit address in the alias region ---------------*/
/* --- CR Register ---*/
/* Alias word address of FPDS bit */
#define FPDS_BIT_NUMBER          PWR_CR_FPDS_Pos
#define CR_FPDS_BB               (uint32_t)(PERIPH_BB_BASE + (PWR_CR_OFFSET_BB * 32U) + (FPDS_BIT_NUMBER * 4U))

/* Alias word address of ODEN bit   */
#define ODEN_BIT_NUMBER          PWR_CR_ODEN_Pos
#define CR_ODEN_BB               (uint32_t)(PERIPH_BB_BASE + (PWR_CR_OFFSET_BB * 32U) + (ODEN_BIT_NUMBER * 4U))

/* Alias word address of ODSWEN bit */
#define ODSWEN_BIT_NUMBER        PWR_CR_ODSWEN_Pos
#define CR_ODSWEN_BB             (uint32_t)(PERIPH_BB_BASE + (PWR_CR_OFFSET_BB * 32U) + (ODSWEN_BIT_NUMBER * 4U))
    
/* Alias word address of MRLVDS bit */
#define MRLVDS_BIT_NUMBER        PWR_CR_MRLVDS_Pos
#define CR_MRLVDS_BB             (uint32_t)(PERIPH_BB_BASE + (PWR_CR_OFFSET_BB * 32U) + (MRLVDS_BIT_NUMBER * 4U))

/* Alias word address of LPLVDS bit */
#define LPLVDS_BIT_NUMBER        PWR_CR_LPLVDS_Pos
#define CR_LPLVDS_BB             (uint32_t)(PERIPH_BB_BASE + (PWR_CR_OFFSET_BB * 32U) + (LPLVDS_BIT_NUMBER * 4U))

 /**
  * @}
  */

/** @defgroup PWREx_CSR_register_alias PWRx CSR Register alias address
  * @{
  */  
/* --- CSR Register ---*/
/* Alias word address of BRE bit */
#define BRE_BIT_NUMBER   PWR_CSR_BRE_Pos
#define CSR_BRE_BB      (uint32_t)(PERIPH_BB_BASE + (PWR_CSR_OFFSET_BB * 32U) + (BRE_BIT_NUMBER * 4U))

#if defined(STM32F469xx) || defined(STM32F479xx)
/* Alias word address of WUPP bit */
#define WUPP_BIT_NUMBER   PWR_CSR_WUPP_Pos
#define CSR_WUPP_BB      (PERIPH_BB_BASE + (PWR_CSR_OFFSET_BB * 32U) + (WUPP_BIT_NUMBER * 4U))
#endif /* STM32F469xx || STM32F479xx */
/**
  * @}
  */

/**
  * @}
  */

/* Private macros ------------------------------------------------------------*/
/** @defgroup PWREx_Private_Macros PWREx Private Macros
  * @{
  */

/** @defgroup PWREx_IS_PWR_Definitions PWREx Private macros to check input parameters
  * @{
  */
#if defined(STM32F427xx) || defined(STM32F437xx) || defined(STM32F429xx) || defined(STM32F439xx) ||\
    defined(STM32F446xx) || defined(STM32F469xx) || defined(STM32F479xx)
#define IS_PWR_REGULATOR_UNDERDRIVE(REGULATOR) (((REGULATOR) == PWR_MAINREGULATOR_UNDERDRIVE_ON) || \
                                                ((REGULATOR) == PWR_LOWPOWERREGULATOR_UNDERDRIVE_ON))
#endif /* STM32F427xx || STM32F437xx || STM32F429xx || STM32F439xx || STM32F446xx || STM32F469xx || STM32F479xx */

#if defined(STM32F405xx) || defined(STM32F407xx) || defined(STM32F415xx) || defined(STM32F417xx)
#define IS_PWR_VOLTAGE_SCALING_RANGE(VOLTAGE) (((VOLTAGE) == PWR_REGULATOR_VOLTAGE_SCALE1) || \
                                               ((VOLTAGE) == PWR_REGULATOR_VOLTAGE_SCALE2))
#else
#define IS_PWR_VOLTAGE_SCALING_RANGE(VOLTAGE) (((VOLTAGE) == PWR_REGULATOR_VOLTAGE_SCALE1) || \
                                               ((VOLTAGE) == PWR_REGULATOR_VOLTAGE_SCALE2) || \
                                               ((VOLTAGE) == PWR_REGULATOR_VOLTAGE_SCALE3))
#endif /* STM32F405xx || STM32F407xx || STM32F415xx || STM32F417xx */ 

#if defined(STM32F446xx)
#define IS_PWR_WAKEUP_PIN(PIN) (((PIN) == PWR_WAKEUP_PIN1) || ((PIN) == PWR_WAKEUP_PIN2))
#elif defined(STM32F410Tx) || defined(STM32F410Cx) || defined(STM32F410Rx) || defined(STM32F412Zx) ||\
      defined(STM32F412Vx) || defined(STM32F412Rx) || defined(STM32F412Cx) || defined(STM32F413xx) ||\
      defined(STM32F423xx)
#define IS_PWR_WAKEUP_PIN(PIN) (((PIN) == PWR_WAKEUP_PIN1) || ((PIN) == PWR_WAKEUP_PIN2) || \
                                ((PIN) == PWR_WAKEUP_PIN3))
#else
#define IS_PWR_WAKEUP_PIN(PIN) ((PIN) == PWR_WAKEUP_PIN1)
#endif /* STM32F446xx */
/**
  * @}
  */

/**
  * @}
  */

/**
  * @}
  */ 

/**
  * @}
  */
  
#ifdef __cplusplus
}
#endif


#endif /* __STM32F4xx_HAL_PWR_EX_H */

/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/