path: root/Drivers/STM32U0xx_HAL_Driver/Inc/stm32u0xx_ll_comp.h

/**
  ******************************************************************************
  * @file    stm32u0xx_ll_comp.h
  * @author  MCD Application Team
  * @brief   Header file of COMP LL module.
  ******************************************************************************
  * @attention
  *
  * Copyright (c) 2023 STMicroelectronics.
  * All rights reserved.
  *
  * This software is licensed under terms that can be found in the LICENSE file
  * in the root directory of this software component.
  * If no LICENSE file comes with this software, it is provided AS-IS.
  *
  ******************************************************************************
  */

/* Define to prevent recursive inclusion -------------------------------------*/
#ifndef STM32U0xx_LL_COMP_H
#define STM32U0xx_LL_COMP_H

#ifdef __cplusplus
extern "C" {
#endif

/* Includes ------------------------------------------------------------------*/
#include "stm32u0xx.h"

/** @addtogroup STM32U0xx_LL_Driver
  * @{
  */

#if defined (COMP1) || defined (COMP2)

/** @defgroup COMP_LL COMP
  * @{
  */

/* Private types -------------------------------------------------------------*/
/* Private variables ---------------------------------------------------------*/
/* Private constants ---------------------------------------------------------*/
/** @defgroup COMP_LL_Private_Constants COMP Private Constants
  * @{
  */

/* Internal mask for pair of comparators instances window mode:               */
/* To select into literals LL_COMP_WINDOWMODE_COMPx_INPUT_PLUS_COMMON         */
/* the relevant bits for:                                                     */
/* (concatenation of multiple bits used in different registers)               */
/* - Comparator instance selected as master for window mode : register offset */
/* - Window mode enable or disable: bit value */
#define LL_COMP_WINDOWMODE_COMP_ODD_REGOFFSET_MASK  (0x00000000UL) /* Register of COMP instance odd (COMP1_CSR, ...)
                                                                      defined as reference register */
#define LL_COMP_WINDOWMODE_COMP_EVEN_REGOFFSET_MASK (0x00000001UL) /* Register of COMP instance even (COMP2_CSR, ...)
                                                                      offset vs register of COMP instance odd */
#define LL_COMP_WINDOWMODE_COMPX_REGOFFSET_MASK     (LL_COMP_WINDOWMODE_COMP_ODD_REGOFFSET_MASK  \
                                                     | LL_COMP_WINDOWMODE_COMP_EVEN_REGOFFSET_MASK)
#define LL_COMP_WINDOWMODE_COMPX_SETTING_MASK       (COMP_CSR_WINMODE)
#define LL_COMP_WINDOWOUTPUT_COMPX_SETTING_MASK     (COMP_CSR_WINOUT)
#define LL_COMP_WINDOWOUTPUT_BOTH_SETTING_MASK      (COMP_CSR_WINOUT << 1UL)
#define LL_COMP_WINDOWOUTPUT_BOTH_POS_VS_WINDOW     (1UL)

/* COMP registers bits positions */
#define LL_COMP_WINDOWMODE_BITOFFSET_POS   (11UL) /* Value equivalent to POSITION_VAL(COMP_CSR_WINMODE) */
#define LL_COMP_OUTPUT_LEVEL_BITOFFSET_POS (30UL) /* Value equivalent to POSITION_VAL(COMP_CSR_VALUE) */

/**
  * @}
  */

/* Private macros ------------------------------------------------------------*/
/** @defgroup COMP_LL_Private_Macros COMP Private Macros
  * @{
  */

/**
  * @brief  Driver macro reserved for internal use: set a pointer to
  *         a register from a register basis from which an offset
  *         is applied.
  * @param  __REG__ Register basis from which the offset is applied.
  * @param  __REG_OFFFSET__ Offset to be applied (unit: number of registers).
  * @retval Pointer to register address
  */
#define __COMP_PTR_REG_OFFSET(__REG__, __REG_OFFFSET__)                        \
  ((__IO uint32_t *)((uint32_t) ((uint32_t)(&(__REG__)) + ((__REG_OFFFSET__) << 2UL))))

/**
  * @}
  */

/* Exported types ------------------------------------------------------------*/
#if defined(USE_FULL_LL_DRIVER)
/** @defgroup COMP_LL_ES_INIT COMP Exported Init structure
  * @{
  */

/**
  * @brief  Structure definition of some features of COMP instance.
  */
typedef struct
{
  uint32_t PowerMode;                   /*!< Set comparator operating mode to adjust power and speed.
                                             This parameter can be a value of @ref COMP_LL_EC_POWERMODE
                                             This feature can be modified afterwards using unitary
                                             function @ref LL_COMP_SetPowerMode(). */

  uint32_t InputPlus;                   /*!< Set comparator input plus (non-inverting input).
                                             This parameter can be a value of @ref COMP_LL_EC_INPUT_PLUS
                                             This feature can be modified afterwards using unitary function
                                             @ref LL_COMP_SetInputPlus(). */

  uint32_t InputMinus;                  /*!< Set comparator input minus (inverting input).
                                             This parameter can be a value of @ref COMP_LL_EC_INPUT_MINUS
                                             This feature can be modified afterwards using unitary function
                                              @ref LL_COMP_SetInputMinus(). */

  uint32_t InputHysteresis;             /*!< Set comparator hysteresis mode of the input minus.
                                             This parameter can be a value of @ref COMP_LL_EC_INPUT_HYSTERESIS
                                             This feature can be modified afterwards using unitary function
                                             @ref LL_COMP_SetInputHysteresis(). */

  uint32_t OutputPolarity;              /*!< Set comparator output polarity.
                                             This parameter can be a value of @ref COMP_LL_EC_OUTPUT_POLARITY
                                             This feature can be modified afterwards using unitary function
                                             @ref LL_COMP_SetOutputPolarity(). */

  uint32_t OutputBlankingSource;        /*!< Set comparator blanking source.
                                             This parameter can be a value of @ref COMP_LL_EC_OUTPUT_BLANKING_SOURCE
                                             This feature can be modified afterwards using unitary function
                                             @ref LL_COMP_SetOutputBlankingSource(). */

} LL_COMP_InitTypeDef;

/**
  * @}
  */
#endif /* USE_FULL_LL_DRIVER */

/* Exported constants --------------------------------------------------------*/
/** @defgroup COMP_LL_Exported_Constants COMP Exported Constants
  * @{
  */


/** @defgroup COMP_LL_EC_COMMON_WINDOWMODE Comparator common modes - Window mode
  * @{
  */
#define LL_COMP_WINDOWMODE_DISABLE                 (0x00000000UL)                                                   /*!< Window mode disable: Comparators 1 and 2 are independent */
#define LL_COMP_WINDOWMODE_COMP1_INPUT_PLUS_COMMON (COMP_CSR_WINMODE | LL_COMP_WINDOWMODE_COMP_EVEN_REGOFFSET_MASK) /*!< Window mode enable: Comparators instances pair COMP1 and COMP2 have their input plus connected together. The common input is COMP1 input plus (COMP2 input plus is no more accessible). */
#define LL_COMP_WINDOWMODE_COMP2_INPUT_PLUS_COMMON (COMP_CSR_WINMODE | LL_COMP_WINDOWMODE_COMP_ODD_REGOFFSET_MASK)  /*!< Window mode enable: if used from COMP1 or COMP2 instance, comparators instances pair COMP1 and COMP2 have their input plus connected together, the common input is COMP2 input plus (COMP1 input plus is no more accessible). */
/**
  * @}
  */

/** @defgroup COMP_LL_EC_COMMON_WINDOWOUTPUT Comparator common modes - Window output
  * @{
  */
#define LL_COMP_WINDOWOUTPUT_EACH_COMP               (0x00000000UL)                                                  /*!< Window output default mode: Comparators output are indicating each their own state. To know window mode state: each comparator output must be read, if "((COMPx exclusive or COMPy) == 1)" then monitored signal is within comparators window. The same way, if both comparators output are high, then monitored signal is below window. */
#define LL_COMP_WINDOWOUTPUT_COMP1                   (COMP_CSR_WINOUT | LL_COMP_WINDOWMODE_COMP_ODD_REGOFFSET_MASK)  /*!< Window output synthesized on COMP1 output: COMP1 output is no more indicating its own state, but global window mode state (logical high means monitored signal is within comparators window). Note: impacts only comparator output signal level (COMPx_OUT propagated to GPIO, EXTI lines, timers, ...), does not impact output digital state of comparator (COMPx_VALUE) always reflecting each comparator output state.*/
#define LL_COMP_WINDOWOUTPUT_COMP2                   (COMP_CSR_WINOUT | LL_COMP_WINDOWMODE_COMP_EVEN_REGOFFSET_MASK) /*!< Window output synthesized on COMP2 output: COMP2 output is no more indicating its own state, but global window mode state (logical high means monitored signal is within comparators window). Note: impacts only comparator output signal level (COMPx_OUT propagated to GPIO, EXTI lines, timers, ...), does not impact output digital state of comparator (COMPx_VALUE) always reflecting each comparator output state.*/
#define LL_COMP_WINDOWOUTPUT_BOTH                    (COMP_CSR_WINOUT | LL_COMP_WINDOWMODE_COMP_EVEN_REGOFFSET_MASK | LL_COMP_WINDOWOUTPUT_BOTH_SETTING_MASK)      /*!< Window output synthesized on both comparators output of pair of comparator selected (COMP1 and COMP2): both comparators outputs are no more indicating their own state, but global window mode state (logical high means monitored signal is within comparators window). This is a specific configuration (technically possible but not relevant from application point of view: 2 comparators output used for the same signal level), standard configuration for window mode is one of the settings above. */
/**
  * @}
  */


/** @defgroup COMP_LL_EC_POWERMODE Comparator modes - Power mode
  * @{
  */
#define LL_COMP_POWERMODE_HIGHSPEED     (0x00000000UL)                            /*!< COMP power mode to high speed */
#define LL_COMP_POWERMODE_MEDIUMSPEED   (COMP_CSR_PWRMODE_0)                      /*!< COMP power mode to medium speed */
#define LL_COMP_POWERMODE_ULTRALOWPOWER (COMP_CSR_PWRMODE_1 | COMP_CSR_PWRMODE_0) /*!< COMP power mode to ultra-low power */
/**
  * @}
  */

/** @defgroup COMP_LL_EC_INPUT_PLUS Comparator inputs - Input plus (input non-inverting) selection
  * @{
  */
#define LL_COMP_INPUT_PLUS_IO1         (0x00000000UL)                          /*!< Comparator input plus connected to IO1 (pin PC5 for COMP1, pin PB4 for COMP2) */
#define LL_COMP_INPUT_PLUS_IO2         (COMP_CSR_INPSEL_0)                     /*!< Comparator input plus connected to IO2 (pin PB2 for COMP1, pin PB6 for COMP2) */
#define LL_COMP_INPUT_PLUS_IO3         (COMP_CSR_INPSEL_1)                     /*!< Comparator input plus connected to IO3 (pin PA1 for COMP1, pin PA3 for COMP2) */
#define LL_COMP_INPUT_PLUS_IO4         (COMP_CSR_INPSEL_1 | COMP_CSR_INPSEL_0) /*!< Comparator input plus connected to IO4 (pin PA9 for COMP1, pin PD10 for COMP2) */
#define LL_COMP_INPUT_PLUS_IO5         (COMP_CSR_INPSEL_2)                     /*!< Comparator input plus connected to IO5 (pin PC6 for COMP1) */
/**
  * @}
  */

/** @defgroup COMP_LL_EC_INPUT_MINUS Comparator inputs - Input minus (input inverting) selection
  * @{
  */
#define LL_COMP_INPUT_MINUS_1_4VREFINT  (0x00000000UL)                                                                  /*!< Comparator input minus connected to 1/4 VrefInt  */
#define LL_COMP_INPUT_MINUS_1_2VREFINT  (                                                            COMP_CSR_INMSEL_0) /*!< Comparator input minus connected to 1/2 VrefInt  */
#define LL_COMP_INPUT_MINUS_3_4VREFINT  (                                        COMP_CSR_INMSEL_1                    ) /*!< Comparator input minus connected to 3/4 VrefInt  */
#define LL_COMP_INPUT_MINUS_VREFINT     (                                        COMP_CSR_INMSEL_1 | COMP_CSR_INMSEL_0) /*!< Comparator input minus connected to VrefInt */
#define LL_COMP_INPUT_MINUS_DAC1_CH1    (                    COMP_CSR_INMSEL_2                                        ) /*!< Comparator input minus connected to DAC1 channel 1 (DAC_OUT1)  */
#define LL_COMP_INPUT_MINUS_IO1         (                    COMP_CSR_INMSEL_2                     | COMP_CSR_INMSEL_0) /*!< Comparator input minus connected to IO1 (pin PC4 for COMP1, pin PB7 for COMP2) */
#define LL_COMP_INPUT_MINUS_IO2         (                    COMP_CSR_INMSEL_2 | COMP_CSR_INMSEL_1                    ) /*!< Comparator input minus connected to IO2 (pin PB1 for COMP1, pin PB3 for COMP2) */
#define LL_COMP_INPUT_MINUS_IO3         (                    COMP_CSR_INMSEL_2 | COMP_CSR_INMSEL_1 | COMP_CSR_INMSEL_0) /*!< Comparator input minus connected to IO3 (pin PA0 for COMP1, pin PA2 for COMP2) */
#define LL_COMP_INPUT_MINUS_IO4         (COMP_CSR_INMSEL_3                                                            ) /*!< Comparator input minus connected to IO4 (pin PA4 for COMP1, pin PA4 for COMP2) */
#define LL_COMP_INPUT_MINUS_IO5         (COMP_CSR_INMSEL_3                                         | COMP_CSR_INMSEL_0) /*!< Comparator input minus connected to IO5 (pin PA5 for COMP1, pin PA5 for COMP2) */
/**
  * @}
  */

/** @defgroup COMP_LL_EC_INPUT_HYSTERESIS Comparator input - Hysteresis
  * @{
  */
#define LL_COMP_HYSTERESIS_NONE         (0x00000000UL)                      /*!< No hysteresis */
#define LL_COMP_HYSTERESIS_LOW          (                  COMP_CSR_HYST_0) /*!< Hysteresis level low */
#define LL_COMP_HYSTERESIS_MEDIUM       (COMP_CSR_HYST_1                  ) /*!< Hysteresis level medium */
#define LL_COMP_HYSTERESIS_HIGH         (COMP_CSR_HYST_1 | COMP_CSR_HYST_0) /*!< Hysteresis level high */
/**
  * @}
  */

/** @defgroup COMP_LL_EC_OUTPUT_POLARITY Comparator output - Output polarity
  * @{
  */
#define LL_COMP_OUTPUTPOL_NONINVERTED   (0x00000000UL)          /*!< COMP output polarity is not inverted: comparator output is high when the plus (non-inverting) input is at a higher voltage than the minus (inverting) input */
#define LL_COMP_OUTPUTPOL_INVERTED      (COMP_CSR_POLARITY)     /*!< COMP output polarity is inverted: comparator output is low when the plus (non-inverting) input is at a lower voltage than the minus (inverting) input */
/**
  * @}
  */

/** @defgroup COMP_LL_EC_OUTPUT_BLANKING_SOURCE Comparator output - Blanking source
  * @{
  */
#define LL_COMP_BLANKINGSRC_NONE            (0x00000000UL)          /*!<Comparator output without blanking */
/* Note: Output blanking source common to all COMP instances */
#define LL_COMP_BLANKINGSRC_TIM1_OC4        (COMP_CSR_BLANKSEL_0)   /*!< Comparator output blanking source TIM1 OC4 (common to all COMP instances: COMP1, COMP2) */
#define LL_COMP_BLANKINGSRC_TIM1_OC5        (COMP_CSR_BLANKSEL_1)   /*!< Comparator output blanking source TIM1 OC5 (common to all COMP instances: COMP1, COMP2) */
#define LL_COMP_BLANKINGSRC_TIM2_OC3        (COMP_CSR_BLANKSEL_2)   /*!< Comparator output blanking source TIM2 OC3 (common to all COMP instances: COMP1, COMP2) */
#define LL_COMP_BLANKINGSRC_TIM3_OC3        (COMP_CSR_BLANKSEL_3)   /*!< Comparator output blanking source TIM3 OC3 (common to all COMP instances: COMP1, COMP2) */
#define LL_COMP_BLANKINGSRC_TIM15_OC2       (COMP_CSR_BLANKSEL_4)   /*!< Comparator output blanking source TIM15 OC2 (common to all COMP instances: COMP1, COMP2) */
/**
  * @}
  */

/** @defgroup COMP_LL_EC_OUTPUT_LEVEL Comparator output - Output level
  * @{
  */
#define LL_COMP_OUTPUT_LEVEL_LOW        (0x00000000UL)          /*!< Comparator output level low (if the polarity is not inverted, otherwise to be complemented) */
#define LL_COMP_OUTPUT_LEVEL_HIGH       (0x00000001UL)          /*!< Comparator output level high (if the polarity is not inverted, otherwise to be complemented) */
/**
  * @}
  */

/** @defgroup COMP_LL_EC_HW_DELAYS  Definitions of COMP hardware constraints delays
  * @note   Only COMP peripheral HW delays are defined in COMP LL driver driver,
  *         not timeout values.
  *         For details on delays values, refer to descriptions in source code
  *         above each literal definition.
  * @{
  */

/* Delay for comparator startup time.                                         */
/* Note: Delay required to reach propagation delay specification.             */
/* Literal set to maximum value (refer to device datasheet,                   */
/* parameter "tSTART").                                                       */
/* Unit: us                                                                   */
#define LL_COMP_DELAY_STARTUP_US          ( 80UL) /*!< Delay for COMP startup time */

/* Delay for comparator voltage scaler stabilization time.                    */
/* Note: Voltage scaler is used when selecting comparator input               */
/*       based on VrefInt: VrefInt or subdivision of VrefInt.                 */
/* Literal set to maximum value (refer to device datasheet,                   */
/* parameter "tSTART_SCALER").                                                */
/* Unit: us                                                                   */
#define LL_COMP_DELAY_VOLTAGE_SCALER_STAB_US ( 200UL) /*!< Delay for COMP voltage scaler stabilization time */

/**
  * @}
  */

/**
  * @}
  */

/* Exported macro ------------------------------------------------------------*/
/** @defgroup COMP_LL_Exported_Macros COMP Exported Macros
  * @{
  */
/** @defgroup COMP_LL_EM_WRITE_READ Common write and read registers macro
  * @{
  */

/**
  * @brief  Write a value in COMP register
  * @param  __INSTANCE__ comparator instance
  * @param  __REG__ Register to be written
  * @param  __VALUE__ Value to be written in the register
  * @retval None
  */
#define LL_COMP_WriteReg(__INSTANCE__, __REG__, __VALUE__) WRITE_REG((__INSTANCE__)->__REG__, (__VALUE__))

/**
  * @brief  Read a value in COMP register
  * @param  __INSTANCE__ comparator instance
  * @param  __REG__ Register to be read
  * @retval Register value
  */
#define LL_COMP_ReadReg(__INSTANCE__, __REG__) READ_REG((__INSTANCE__)->__REG__)
/**
  * @}
  */

/** @defgroup COMP_LL_EM_HELPER_MACRO COMP helper macro
  * @{
  */

/**
  * @brief  Helper macro to select the COMP common instance
  *         to which is belonging the selected COMP instance.
  * @note   COMP common register instance can be used to
  *         set parameters common to several COMP instances.
  *         Refer to functions having argument "COMPxy_COMMON" as parameter.
  * @param  __COMPx__ COMP instance
  * @retval COMP common instance or value "0" if there is no COMP common instance.
  */
#define __LL_COMP_COMMON_INSTANCE(__COMPx__)          (COMP12_COMMON)

/**
  * @}
  */

/**
  * @}
  */

/* Exported functions --------------------------------------------------------*/
/** @defgroup COMP_LL_Exported_Functions COMP Exported Functions
  * @{
  */

#if defined(COMP2)
/** @defgroup COMP_LL_EF_Configuration_comparator_common Configuration of COMP hierarchical scope:
  *           common to several COMP instances
  * @{
  */

/**
  * @brief  Set window mode of a pair of comparators instances
  *         (2 consecutive COMP instances COMP<x> and COMP<x+1>).
  * @rmtoll CSR      WINMODE        LL_COMP_SetCommonWindowMode
  * @param  COMPxy_COMMON Comparator common instance
  *         (can be set directly from CMSIS definition or by using helper macro @ref __LL_COMP_COMMON_INSTANCE() )
  * @param  WindowMode This parameter can be one of the following values:
  *         @arg @ref LL_COMP_WINDOWMODE_DISABLE
  *         @arg @ref LL_COMP_WINDOWMODE_COMP1_INPUT_PLUS_COMMON
  *         @arg @ref LL_COMP_WINDOWMODE_COMP2_INPUT_PLUS_COMMON
  * @retval None
  */
__STATIC_INLINE void LL_COMP_SetCommonWindowMode(COMP_Common_TypeDef *COMPxy_COMMON, uint32_t WindowMode)
{
  /* Note: On this STM32 series, window mode can be set from any instance     */
  /*       of the pair of comparator instances.                               */
  __IO uint32_t *preg = __COMP_PTR_REG_OFFSET(COMPxy_COMMON->CSR_ODD,
                                              (WindowMode & LL_COMP_WINDOWMODE_COMPX_REGOFFSET_MASK));

  /* Clear the potential previous setting of window mode */
  __IO uint32_t *preg_clear = __COMP_PTR_REG_OFFSET(COMPxy_COMMON->CSR_ODD,
                                                    (~(WindowMode & LL_COMP_WINDOWMODE_COMPX_REGOFFSET_MASK) & 0x1UL));
  CLEAR_BIT(*preg_clear,
            COMP_CSR_WINMODE
           );

  /* Set window mode */
  MODIFY_REG(*preg,
             COMP_CSR_WINMODE,
             (WindowMode & LL_COMP_WINDOWMODE_COMPX_SETTING_MASK)
            );
}

/**
  * @brief  Get window mode of a pair of comparators instances
  *         (2 consecutive COMP instances COMP<x> and COMP<x+1>).
  * @rmtoll CSR      WINMODE        LL_COMP_GetCommonWindowMode
  * @param  COMPxy_COMMON Comparator common instance
  *         (can be set directly from CMSIS definition or by using helper macro @ref __LL_COMP_COMMON_INSTANCE() )
  * @retval Returned value can be one of the following values:
  *         @arg @ref LL_COMP_WINDOWMODE_DISABLE
  *         @arg @ref LL_COMP_WINDOWMODE_COMP1_INPUT_PLUS_COMMON
  *         @arg @ref LL_COMP_WINDOWMODE_COMP2_INPUT_PLUS_COMMON
  */
__STATIC_INLINE uint32_t LL_COMP_GetCommonWindowMode(const COMP_Common_TypeDef *COMPxy_COMMON)
{
  /* Note: On this STM32 series, window mode can be set from any instance     */
  /*       of the pair of comparator instances.                               */
  register const uint32_t window_mode_comp_odd = (uint32_t)READ_BIT(COMPxy_COMMON->CSR_ODD, COMP_CSR_WINMODE);
  register const uint32_t window_mode_comp_even = (uint32_t)READ_BIT(COMPxy_COMMON->CSR_EVEN, COMP_CSR_WINMODE);

  return (uint32_t)(window_mode_comp_odd
                    | window_mode_comp_even
                    | ((window_mode_comp_even >> LL_COMP_WINDOWMODE_BITOFFSET_POS)
                       * LL_COMP_WINDOWMODE_COMP_EVEN_REGOFFSET_MASK)
                   );
}

/**
  * @brief  Set window output of a pair of comparators instances
  *         (2 consecutive COMP instances COMP<x> and COMP<x+1>).
  * @rmtoll CSR      WINOUT         LL_COMP_SetCommonWindowOutput
  * @param  COMPxy_COMMON Comparator common instance
  *         (can be set directly from CMSIS definition or by using helper macro @ref __LL_COMP_COMMON_INSTANCE() )
  * @param  WindowOutput This parameter can be one of the following values:
  *         @arg @ref LL_COMP_WINDOWOUTPUT_EACH_COMP
  *         @arg @ref LL_COMP_WINDOWOUTPUT_COMP1
  *         @arg @ref LL_COMP_WINDOWOUTPUT_COMP2
  * @retval None
  */
__STATIC_INLINE void LL_COMP_SetCommonWindowOutput(COMP_Common_TypeDef *COMPxy_COMMON, uint32_t WindowOutput)
{
  register __IO uint32_t *preg = __COMP_PTR_REG_OFFSET(COMPxy_COMMON->CSR_ODD,
                                                       (WindowOutput & LL_COMP_WINDOWMODE_COMPX_REGOFFSET_MASK));

  /* Clear the potential previous setting of window output on the relevant comparator instance */
  /* (clear bit of window output unless specific case of setting of comparator both output selected) */
  register __IO uint32_t *preg_clear = __COMP_PTR_REG_OFFSET(COMPxy_COMMON->CSR_ODD,
                                                             (~(WindowOutput & LL_COMP_WINDOWMODE_COMPX_REGOFFSET_MASK)
                                                              & 0x1UL));
  MODIFY_REG(*preg_clear,
             COMP_CSR_WINOUT,
             ((WindowOutput & LL_COMP_WINDOWOUTPUT_BOTH_SETTING_MASK) >> LL_COMP_WINDOWOUTPUT_BOTH_POS_VS_WINDOW)
            );

  /* Set window output */
  MODIFY_REG(*preg,
             COMP_CSR_WINOUT,
             (WindowOutput & LL_COMP_WINDOWOUTPUT_COMPX_SETTING_MASK)
            );
}

/**
  * @brief  Get window output of a pair of comparators instances
  *         (2 consecutive COMP instances COMP<x> and COMP<x+1>).
  * @rmtoll CSR      WINMODE        LL_COMP_GetCommonWindowOutput
  * @param  COMPxy_COMMON Comparator common instance
  *         (can be set directly from CMSIS definition or by using helper macro @ref __LL_COMP_COMMON_INSTANCE() )
  * @retval Returned value can be one of the following values:
  *         @arg @ref LL_COMP_WINDOWOUTPUT_EACH_COMP
  *         @arg @ref LL_COMP_WINDOWOUTPUT_COMP1
  *         @arg @ref LL_COMP_WINDOWOUTPUT_COMP2
  */
__STATIC_INLINE uint32_t LL_COMP_GetCommonWindowOutput(const COMP_Common_TypeDef *COMPxy_COMMON)
{
  register const uint32_t window_output_comp_odd = (uint32_t)READ_BIT(COMPxy_COMMON->CSR_ODD, COMP_CSR_WINOUT);
  register const uint32_t window_output_comp_even = (uint32_t)READ_BIT(COMPxy_COMMON->CSR_EVEN, COMP_CSR_WINOUT);

  /* Construct value corresponding to LL_COMP_WINDOWOUTPUT_xxx */
  return (uint32_t)(window_output_comp_odd
                    | window_output_comp_even
                    | ((window_output_comp_even >> COMP_CSR_WINOUT_Pos) * LL_COMP_WINDOWMODE_COMP_EVEN_REGOFFSET_MASK)
                    | (window_output_comp_odd + window_output_comp_even));
}
/**
  * @}
  */

#endif /* COMP2 */
/** @defgroup COMP_LL_EF_Configuration_comparator_modes Configuration of comparator modes
  * @{
  */

/**
  * @brief  Set comparator instance operating mode to adjust power and speed.
  * @rmtoll CSR      PWRMODE        LL_COMP_SetPowerMode
  * @param  COMPx Comparator instance
  * @param  PowerMode This parameter can be one of the following values:
  *         @arg @ref LL_COMP_POWERMODE_HIGHSPEED
  *         @arg @ref LL_COMP_POWERMODE_MEDIUMSPEED
  * @retval None
  */
__STATIC_INLINE void LL_COMP_SetPowerMode(COMP_TypeDef *COMPx, uint32_t PowerMode)
{
  MODIFY_REG(COMPx->CSR, COMP_CSR_PWRMODE, PowerMode);
}

/**
  * @brief  Get comparator instance operating mode to adjust power and speed.
  * @rmtoll CSR      PWRMODE        LL_COMP_GetPowerMode
  * @param  COMPx Comparator instance
  * @retval Returned value can be one of the following values:
  *         @arg @ref LL_COMP_POWERMODE_HIGHSPEED
  *         @arg @ref LL_COMP_POWERMODE_MEDIUMSPEED
  */
__STATIC_INLINE uint32_t LL_COMP_GetPowerMode(const COMP_TypeDef *COMPx)
{
  return (uint32_t)(READ_BIT(COMPx->CSR, COMP_CSR_PWRMODE));
}

/**
  * @}
  */

/** @defgroup COMP_LL_EF_Configuration_comparator_inputs Configuration of comparator inputs
  * @{
  */

/**
  * @brief  Set comparator inputs minus (inverting) and plus (non-inverting).
  * @note   In case of comparator input selected to be connected to IO:
  *         GPIO pins are specific to each comparator instance.
  *         Refer to description of parameters or to reference manual.
  * @note   On this STM32 series, a voltage scaler is used
  *         when COMP input is based on VrefInt (VrefInt or subdivision
  *         of VrefInt):
  *         Voltage scaler requires a delay for voltage stabilization.
  *         Refer to device datasheet, parameter "tSTART_SCALER".
  * @rmtoll CSR      INMSEL         LL_COMP_ConfigInputs\n
  *         CSR      INPSEL         LL_COMP_ConfigInputs\n
  * @param  COMPx Comparator instance
  * @param  InputMinus This parameter can be one of the following values:
  *         @arg @ref LL_COMP_INPUT_MINUS_1_4VREFINT
  *         @arg @ref LL_COMP_INPUT_MINUS_1_2VREFINT
  *         @arg @ref LL_COMP_INPUT_MINUS_3_4VREFINT
  *         @arg @ref LL_COMP_INPUT_MINUS_VREFINT
  *         @arg @ref LL_COMP_INPUT_MINUS_DAC1_CH1
  *         @arg @ref LL_COMP_INPUT_MINUS_IO1
  *         @arg @ref LL_COMP_INPUT_MINUS_IO2
  *         @arg @ref LL_COMP_INPUT_MINUS_IO3
  *         @arg @ref LL_COMP_INPUT_MINUS_IO4
  *         @arg @ref LL_COMP_INPUT_MINUS_IO5
  * @param  InputPlus This parameter can be one of the following values:
  *         @arg @ref LL_COMP_INPUT_PLUS_IO1
  *         @arg @ref LL_COMP_INPUT_PLUS_IO2
  *         @arg @ref LL_COMP_INPUT_PLUS_IO3
  *         @arg @ref LL_COMP_INPUT_PLUS_IO4
  *         @arg @ref LL_COMP_INPUT_PLUS_IO5 (1)
  *
  *         (1) Available only on COMP instance: COMP1.
  * @retval None
  */
__STATIC_INLINE void LL_COMP_ConfigInputs(COMP_TypeDef *COMPx, uint32_t InputMinus, uint32_t InputPlus)
{
  MODIFY_REG(COMPx->CSR,
             COMP_CSR_INMSEL | COMP_CSR_INPSEL,
             InputMinus | InputPlus);
}

/**
  * @brief  Set comparator input plus (non-inverting).
  * @note   In case of comparator input selected to be connected to IO:
  *         GPIO pins are specific to each comparator instance.
  *         Refer to description of parameters or to reference manual.
  * @rmtoll CSR      INPSEL         LL_COMP_SetInputPlus
  * @param  COMPx Comparator instance
  * @param  InputPlus This parameter can be one of the following values:
  *         @arg @ref LL_COMP_INPUT_PLUS_IO1
  *         @arg @ref LL_COMP_INPUT_PLUS_IO2
  *         @arg @ref LL_COMP_INPUT_PLUS_IO3
  *         @arg @ref LL_COMP_INPUT_PLUS_IO4
  *         @arg @ref LL_COMP_INPUT_PLUS_IO5 (1)
  *
  *         (1) Available only on COMP instance: COMP1.
  * @retval None
  */
__STATIC_INLINE void LL_COMP_SetInputPlus(COMP_TypeDef *COMPx, uint32_t InputPlus)
{
  MODIFY_REG(COMPx->CSR, COMP_CSR_INPSEL, InputPlus);
}

/**
  * @brief  Get comparator input plus (non-inverting).
  * @note   In case of comparator input selected to be connected to IO:
  *         GPIO pins are specific to each comparator instance.
  *         Refer to description of parameters or to reference manual.
  * @rmtoll CSR      INPSEL         LL_COMP_GetInputPlus
  * @param  COMPx Comparator instance
  * @retval Returned value can be one of the following values:
  *         @arg @ref LL_COMP_INPUT_PLUS_IO1
  *         @arg @ref LL_COMP_INPUT_PLUS_IO2
  *         @arg @ref LL_COMP_INPUT_PLUS_IO3
  *         @arg @ref LL_COMP_INPUT_PLUS_IO4
  *         @arg @ref LL_COMP_INPUT_PLUS_IO5 (1)
  *
  *         (1) Available only on COMP instance: COMP1.
  */
__STATIC_INLINE uint32_t LL_COMP_GetInputPlus(const COMP_TypeDef *COMPx)
{
  return (uint32_t)(READ_BIT(COMPx->CSR, COMP_CSR_INPSEL));
}

/**
  * @brief  Set comparator input minus (inverting).
  * @note   In case of comparator input selected to be connected to IO:
  *         GPIO pins are specific to each comparator instance.
  *         Refer to description of parameters or to reference manual.
  * @note   On this STM32 series, a voltage scaler is used
  *         when COMP input is based on VrefInt (VrefInt or subdivision
  *         of VrefInt):
  *         Voltage scaler requires a delay for voltage stabilization.
  *         Refer to device datasheet, parameter "tSTART_SCALER".
  * @rmtoll CSR      INMSEL         LL_COMP_SetInputMinus
  * @param  COMPx Comparator instance
  * @param  InputMinus This parameter can be one of the following values:
  *         @arg @ref LL_COMP_INPUT_MINUS_1_4VREFINT
  *         @arg @ref LL_COMP_INPUT_MINUS_1_2VREFINT
  *         @arg @ref LL_COMP_INPUT_MINUS_3_4VREFINT
  *         @arg @ref LL_COMP_INPUT_MINUS_VREFINT
  *         @arg @ref LL_COMP_INPUT_MINUS_DAC1_CH1
  *         @arg @ref LL_COMP_INPUT_MINUS_IO1
  *         @arg @ref LL_COMP_INPUT_MINUS_IO2
  *         @arg @ref LL_COMP_INPUT_MINUS_IO3
  *         @arg @ref LL_COMP_INPUT_MINUS_IO4
  *         @arg @ref LL_COMP_INPUT_MINUS_IO5
  * @retval None
  */
__STATIC_INLINE void LL_COMP_SetInputMinus(COMP_TypeDef *COMPx, uint32_t InputMinus)
{
  MODIFY_REG(COMPx->CSR, COMP_CSR_INMSEL, InputMinus);
}

/**
  * @brief  Get comparator input minus (inverting).
  * @note   In case of comparator input selected to be connected to IO:
  *         GPIO pins are specific to each comparator instance.
  *         Refer to description of parameters or to reference manual.
  * @rmtoll CSR      INMSEL         LL_COMP_GetInputMinus
  * @param  COMPx Comparator instance
  * @retval Returned value can be one of the following values:
  *         @arg @ref LL_COMP_INPUT_MINUS_1_4VREFINT
  *         @arg @ref LL_COMP_INPUT_MINUS_1_2VREFINT
  *         @arg @ref LL_COMP_INPUT_MINUS_3_4VREFINT
  *         @arg @ref LL_COMP_INPUT_MINUS_VREFINT
  *         @arg @ref LL_COMP_INPUT_MINUS_DAC1_CH1
  *         @arg @ref LL_COMP_INPUT_MINUS_IO4
  *         @arg @ref LL_COMP_INPUT_MINUS_IO5
  */
__STATIC_INLINE uint32_t LL_COMP_GetInputMinus(const COMP_TypeDef *COMPx)
{
  return (uint32_t)(READ_BIT(COMPx->CSR, COMP_CSR_INMSEL));
}

/**
  * @brief  Set comparator instance hysteresis mode of the input minus (inverting input).
  * @rmtoll CSR      HYST           LL_COMP_SetInputHysteresis
  * @param  COMPx Comparator instance
  * @param  InputHysteresis This parameter can be one of the following values:
  *         @arg @ref LL_COMP_HYSTERESIS_NONE
  *         @arg @ref LL_COMP_HYSTERESIS_LOW
  *         @arg @ref LL_COMP_HYSTERESIS_MEDIUM
  *         @arg @ref LL_COMP_HYSTERESIS_HIGH
  * @retval None
  */
__STATIC_INLINE void LL_COMP_SetInputHysteresis(COMP_TypeDef *COMPx, uint32_t InputHysteresis)
{
  MODIFY_REG(COMPx->CSR, COMP_CSR_HYST, InputHysteresis);
}

/**
  * @brief  Get comparator instance hysteresis mode of the minus (inverting) input.
  * @rmtoll CSR      HYST           LL_COMP_GetInputHysteresis
  * @param  COMPx Comparator instance
  * @retval Returned value can be one of the following values:
  *         @arg @ref LL_COMP_HYSTERESIS_NONE
  *         @arg @ref LL_COMP_HYSTERESIS_LOW
  *         @arg @ref LL_COMP_HYSTERESIS_MEDIUM
  *         @arg @ref LL_COMP_HYSTERESIS_HIGH
  */
__STATIC_INLINE uint32_t LL_COMP_GetInputHysteresis(const COMP_TypeDef *COMPx)
{
  return (uint32_t)(READ_BIT(COMPx->CSR, COMP_CSR_HYST));
}

/**
  * @}
  */

/** @defgroup COMP_LL_EF_Configuration_comparator_output Configuration of comparator output
  * @{
  */

/**
  * @brief  Set comparator instance output polarity.
  * @rmtoll CSR      POLARITY       LL_COMP_SetOutputPolarity
  * @param  COMPx Comparator instance
  * @param  OutputPolarity This parameter can be one of the following values:
  *         @arg @ref LL_COMP_OUTPUTPOL_NONINVERTED
  *         @arg @ref LL_COMP_OUTPUTPOL_INVERTED
  * @retval None
  */
__STATIC_INLINE void LL_COMP_SetOutputPolarity(COMP_TypeDef *COMPx, uint32_t OutputPolarity)
{
  MODIFY_REG(COMPx->CSR, COMP_CSR_POLARITY, OutputPolarity);
}

/**
  * @brief  Get comparator instance output polarity.
  * @rmtoll CSR      POLARITY       LL_COMP_GetOutputPolarity
  * @param  COMPx Comparator instance
  * @retval Returned value can be one of the following values:
  *         @arg @ref LL_COMP_OUTPUTPOL_NONINVERTED
  *         @arg @ref LL_COMP_OUTPUTPOL_INVERTED
  */
__STATIC_INLINE uint32_t LL_COMP_GetOutputPolarity(const COMP_TypeDef *COMPx)
{
  return (uint32_t)(READ_BIT(COMPx->CSR, COMP_CSR_POLARITY));
}

/**
  * @brief  Set comparator instance blanking source.
  * @note   Blanking source may be specific to each comparator instance.
  *         Refer to description of parameters or to reference manual.
  * @note   Availability of parameters of blanking source from timer
  *         depends on timers availability on the selected device.
  * @rmtoll CSR      BLANKING       LL_COMP_SetOutputBlankingSource
  * @param  COMPx Comparator instance
  * @param  BlankingSource This parameter can be one of the following values:
  *         @arg @ref LL_COMP_BLANKINGSRC_NONE
  *         @arg @ref LL_COMP_BLANKINGSRC_TIM1_OC4  (1)
  *         @arg @ref LL_COMP_BLANKINGSRC_TIM1_OC5  (1)
  *         @arg @ref LL_COMP_BLANKINGSRC_TIM2_OC3  (1)
  *         @arg @ref LL_COMP_BLANKINGSRC_TIM3_OC3  (1)
  *         @arg @ref LL_COMP_BLANKINGSRC_TIM15_OC2 (1)
  *
  *         (1) Parameter availability depending on timer availability
  *             on the selected device.
  * @retval None
  */
__STATIC_INLINE void LL_COMP_SetOutputBlankingSource(COMP_TypeDef *COMPx, uint32_t BlankingSource)
{
  MODIFY_REG(COMPx->CSR, COMP_CSR_BLANKSEL, BlankingSource);
}

/**
  * @brief  Get comparator instance blanking source.
  * @note   Availability of parameters of blanking source from timer
  *         depends on timers availability on the selected device.
  * @note   Blanking source may be specific to each comparator instance.
  *         Refer to description of parameters or to reference manual.
  * @rmtoll CSR      BLANKING       LL_COMP_GetOutputBlankingSource
  * @param  COMPx Comparator instance
  * @retval Returned value can be one of the following values:
  *         @arg @ref LL_COMP_BLANKINGSRC_NONE
  *         @arg @ref LL_COMP_BLANKINGSRC_TIM1_OC4  (1)
  *         @arg @ref LL_COMP_BLANKINGSRC_TIM1_OC5  (1)
  *         @arg @ref LL_COMP_BLANKINGSRC_TIM2_OC3  (1)
  *         @arg @ref LL_COMP_BLANKINGSRC_TIM3_OC3  (1)
  *         @arg @ref LL_COMP_BLANKINGSRC_TIM15_OC2 (1)
  *
  *         (1) Parameter availability depending on timer availability
  *             on the selected device.
  */
__STATIC_INLINE uint32_t LL_COMP_GetOutputBlankingSource(const COMP_TypeDef *COMPx)
{
  return (uint32_t)(READ_BIT(COMPx->CSR, COMP_CSR_BLANKSEL));
}

/**
  * @}
  */

/** @defgroup COMP_LL_EF_Operation Operation on comparator instance
  * @{
  */

/**
  * @brief  Enable comparator instance.
  * @note   After enable from off state, comparator requires a delay
  *         to reach reach propagation delay specification.
  *         Refer to device datasheet, parameter "tSTART".
  * @rmtoll CSR      EN             LL_COMP_Enable
  * @param  COMPx Comparator instance
  * @retval None
  */
__STATIC_INLINE void LL_COMP_Enable(COMP_TypeDef *COMPx)
{
  SET_BIT(COMPx->CSR, COMP_CSR_EN);
}

/**
  * @brief  Disable comparator instance.
  * @rmtoll CSR      EN             LL_COMP_Disable
  * @param  COMPx Comparator instance
  * @retval None
  */
__STATIC_INLINE void LL_COMP_Disable(COMP_TypeDef *COMPx)
{
  CLEAR_BIT(COMPx->CSR, COMP_CSR_EN);
}

/**
  * @brief  Get comparator enable state
  *         (0: COMP is disabled, 1: COMP is enabled)
  * @rmtoll CSR      EN             LL_COMP_IsEnabled
  * @param  COMPx Comparator instance
  * @retval State of bit (1 or 0).
  */
__STATIC_INLINE uint32_t LL_COMP_IsEnabled(const COMP_TypeDef *COMPx)
{
  return ((READ_BIT(COMPx->CSR, COMP_CSR_EN) == (COMP_CSR_EN)) ? 1UL : 0UL);
}

/**
  * @brief  Lock comparator instance.
  * @note   Once locked, comparator configuration can be accessed in read-only.
  * @note   The only way to unlock the comparator is a device hardware reset.
  * @rmtoll CSR      LOCK           LL_COMP_Lock
  * @param  COMPx Comparator instance
  * @retval None
  */
__STATIC_INLINE void LL_COMP_Lock(COMP_TypeDef *COMPx)
{
  SET_BIT(COMPx->CSR, COMP_CSR_LOCK);
}

/**
  * @brief  Get comparator lock state
  *         (0: COMP is unlocked, 1: COMP is locked).
  * @note   Once locked, comparator configuration can be accessed in read-only.
  * @note   The only way to unlock the comparator is a device hardware reset.
  * @rmtoll CSR      LOCK           LL_COMP_IsLocked
  * @param  COMPx Comparator instance
  * @retval State of bit (1 or 0).
  */
__STATIC_INLINE uint32_t LL_COMP_IsLocked(const COMP_TypeDef *COMPx)
{
  return ((READ_BIT(COMPx->CSR, COMP_CSR_LOCK) == (COMP_CSR_LOCK)) ? 1UL : 0UL);
}

/**
  * @brief  Read comparator instance output level.
  * @note   The comparator output level depends on the selected polarity
  *         (Refer to function @ref LL_COMP_SetOutputPolarity()).
  *         If the comparator polarity is not inverted:
  *          - Comparator output is low when the input plus
  *            is at a lower voltage than the input minus
  *          - Comparator output is high when the input plus
  *            is at a higher voltage than the input minus
  *         If the comparator polarity is inverted:
  *          - Comparator output is high when the input plus
  *            is at a lower voltage than the input minus
  *          - Comparator output is low when the input plus
  *            is at a higher voltage than the input minus
  * @rmtoll CSR      VALUE          LL_COMP_ReadOutputLevel
  * @param  COMPx Comparator instance
  * @retval Returned value can be one of the following values:
  *         @arg @ref LL_COMP_OUTPUT_LEVEL_LOW
  *         @arg @ref LL_COMP_OUTPUT_LEVEL_HIGH
  */
__STATIC_INLINE uint32_t LL_COMP_ReadOutputLevel(const COMP_TypeDef *COMPx)
{
  return (uint32_t)(READ_BIT(COMPx->CSR, COMP_CSR_VALUE)
                    >> LL_COMP_OUTPUT_LEVEL_BITOFFSET_POS);
}

/**
  * @}
  */

#if defined(USE_FULL_LL_DRIVER)
/** @defgroup COMP_LL_EF_Init Initialization and de-initialization functions
  * @{
  */

ErrorStatus LL_COMP_DeInit(COMP_TypeDef *COMPx);
ErrorStatus LL_COMP_Init(COMP_TypeDef *COMPx, const LL_COMP_InitTypeDef *COMP_InitStruct);
void        LL_COMP_StructInit(LL_COMP_InitTypeDef *COMP_InitStruct);

/**
  * @}
  */
#endif /* USE_FULL_LL_DRIVER */

/**
  * @}
  */

/**
  * @}
  */

/**
  * @}
  */

#endif /* COMP1 || COMP2 */

/**
  * @}
  */

#ifdef __cplusplus
}
#endif

#endif /* STM32U0xx_LL_COMP_H */