/**
******************************************************************************
* @file stm32g0xx_ll_comp.h
* @author MCD Application Team
* @brief Header file of COMP LL module.
******************************************************************************
* @attention
*
*
© Copyright (c) 2018 STMicroelectronics.
* All rights reserved.
*
* 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
*
******************************************************************************
*/
/* Define to prevent recursive inclusion -------------------------------------*/
#ifndef STM32G0xx_LL_COMP_H
#define STM32G0xx_LL_COMP_H
#ifdef __cplusplus
extern "C" {
#endif
/* Includes ------------------------------------------------------------------*/
#include "stm32g0xx.h"
/** @addtogroup STM32G0xx_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__) \
((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: 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 synthetized 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). */
#define LL_COMP_WINDOWOUTPUT_COMP2 (COMP_CSR_WINOUT | LL_COMP_WINDOWMODE_COMP_EVEN_REGOFFSET_MASK) /*!< Window output synthetized 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). */
#define LL_COMP_WINDOWOUTPUT_BOTH (COMP_CSR_WINOUT | LL_COMP_WINDOWMODE_COMP_EVEN_REGOFFSET_MASK | LL_COMP_WINDOWOUTPUT_BOTH_SETTING_MASK) /*!< Window output synthetized on both COMP1 and COMP2 output: COMP1 and COMP2 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 configuraton (technically possible but not relevant from application point of view: 2 comparators output used for the same signal level), standard configuraton for window mode is one of the 3 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 */
/**
* @}
*/
/** @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) */
/**
* @}
*/
/** @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_DAC1_CH2 ( COMP_CSR_INMSEL_2 | COMP_CSR_INMSEL_0) /*!< Comparator input minus connected to DAC1 channel 2 (DAC_OUT2) */
#define LL_COMP_INPUT_MINUS_IO1 ( COMP_CSR_INMSEL_2 | COMP_CSR_INMSEL_1 ) /*!< Comparator input minus connected to IO1 (pin PA9 for COMP1, pin PB3 for COMP2) */
#define LL_COMP_INPUT_MINUS_IO2 ( COMP_CSR_INMSEL_2 | COMP_CSR_INMSEL_1 | COMP_CSR_INMSEL_0) /*!< Comparator input minus connected to IO2 (pin PC4 for COMP1, pin PB7 for COMP2) */
#define LL_COMP_INPUT_MINUS_IO3 (COMP_CSR_INMSEL_3 ) /*!< Comparator input minus connected to IO3 (pin PA0 for COMP1, pin PA2 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) /*!__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
* @{
*/
/** @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 odd and even COMP and COMP).
* @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 serie, window mode can be set from one of the pair */
/* of COMP instances: COMP1 or COMP2. */
register 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 */
register 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 odd and even COMP and COMP).
* @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(COMP_Common_TypeDef *COMPxy_COMMON)
{
/* Note: On this STM32 serie, window mode can be set from one of the pair */
/* of COMP instances: COMP1 or COMP2. */
register uint32_t window_mode_comp_odd = READ_BIT(COMPxy_COMMON->CSR_ODD, COMP_CSR_WINMODE);
register uint32_t window_mode_comp_even = 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 odd and even COMP and COMP).
* @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
* @arg @ref LL_COMP_WINDOWOUTPUT_BOTH
* @retval None
*/
__STATIC_INLINE void LL_COMP_SetCommonWindowOutput(COMP_Common_TypeDef *COMPxy_COMMON, uint32_t WindowOutput)
{
register 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 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 odd and even COMP and COMP).
* @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
* @arg @ref LL_COMP_WINDOWOUTPUT_BOTH
*/
__STATIC_INLINE uint32_t LL_COMP_GetCommonWindowOutput(COMP_Common_TypeDef *COMPxy_COMMON)
{
register uint32_t window_output_comp_odd = READ_BIT(COMPxy_COMMON->CSR_ODD, COMP_CSR_WINOUT);
register uint32_t window_output_comp_even = 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));
}
/**
* @}
*/
/** @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(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 serie, 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 "xxxx".
*/
//#warning "Specify parameter name in STM32G0 datasheet"
/*
* @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_DAC1_CH2
* @arg @ref LL_COMP_INPUT_MINUS_IO1
* @arg @ref LL_COMP_INPUT_MINUS_IO2
* @arg @ref LL_COMP_INPUT_MINUS_IO3
* @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
* @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
* @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
*/
__STATIC_INLINE uint32_t LL_COMP_GetInputPlus(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 serie, 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 "xxxx".
*/
//#warning "Specify parameter name in STM32G0 datasheet"
/*
* @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_DAC1_CH2
* @arg @ref LL_COMP_INPUT_MINUS_IO1
* @arg @ref LL_COMP_INPUT_MINUS_IO2
* @arg @ref LL_COMP_INPUT_MINUS_IO3
* @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_DAC1_CH2
* @arg @ref LL_COMP_INPUT_MINUS_IO1
* @arg @ref LL_COMP_INPUT_MINUS_IO2
* @arg @ref LL_COMP_INPUT_MINUS_IO3
*/
__STATIC_INLINE uint32_t LL_COMP_GetInputMinus(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(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(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_BLANKING, 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(COMP_TypeDef *COMPx)
{
return (uint32_t)(READ_BIT(COMPx->CSR, COMP_CSR_BLANKING));
}
/**
* @}
*/
/** @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.
*/
//#warning "Specify startup time naming in datasheet for the selected IP"
/*
* @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(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(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(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, 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 /* STM32G0xx_LL_COMP_H */
/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/