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B3M38SPD seminar project - beehive monitor with LoRa reporting
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spd-lorabees/Drivers/STM32L0xx_HAL_Driver/Inc/stm32l0xx_ll_comp.h

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/**
******************************************************************************
* @file stm32l0xx_ll_comp.h
* @author MCD Application Team
* @brief Header file of COMP LL module.
******************************************************************************
* @attention
*
* <h2><center>&copy; COPYRIGHT(c) 2016 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 __STM32L0xx_LL_COMP_H
#define __STM32L0xx_LL_COMP_H
#ifdef __cplusplus
extern "C" {
#endif
/* Includes ------------------------------------------------------------------*/
#include "stm32l0xx.h"
/** @addtogroup STM32L0xx_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
* @{
*/
/* COMP registers bits positions */
#define LL_COMP_OUTPUT_LEVEL_BITOFFSET_POS ((uint32_t)30U) /* Value equivalent to POSITION_VAL(COMP_CSR_COMP1VALUE) */
/**
* @}
*/
/* Private macros ------------------------------------------------------------*/
/* 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 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(). */
} 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 ((uint32_t)0x00000000U) /*!< Window mode disable: Comparators 1 and 2 are independent */
#define LL_COMP_WINDOWMODE_COMP1_INPUT_PLUS_COMMON (COMP_CSR_COMP1WM) /*!< 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). */
/**
* @}
*/
/** @defgroup COMP_LL_EC_POWERMODE Comparator modes - Power mode
* @{
*/
#define LL_COMP_POWERMODE_ULTRALOWPOWER ((uint32_t)0x00000000U) /*!< COMP power mode to low speed (specific to COMP instance: COMP2) */
#define LL_COMP_POWERMODE_MEDIUMSPEED (COMP_CSR_COMP2SPEED) /*!< COMP power mode to fast speed (specific to COMP instance: COMP2) */
/**
* @}
*/
/** @defgroup COMP_LL_EC_INPUT_PLUS Comparator inputs - Input plus (input non-inverting) selection
* @{
*/
#define LL_COMP_INPUT_PLUS_IO1 ((uint32_t)0x00000000U) /*!< Comparator input plus connected to IO1 (pin PA1 for COMP1, pin PA3 for COMP2) */
#define LL_COMP_INPUT_PLUS_IO2 (COMP_CSR_COMP2INPSEL_0) /*!< Comparator input plus connected to IO2 (pin PB4 for COMP2) (specific to COMP instance: COMP2) */
#define LL_COMP_INPUT_PLUS_IO3 (COMP_CSR_COMP2INPSEL_1) /*!< Comparator input plus connected to IO3 (pin PA5 for COMP2) (specific to COMP instance: COMP2) */
#define LL_COMP_INPUT_PLUS_IO4 (COMP_CSR_COMP2INPSEL_0 | COMP_CSR_COMP2INPSEL_1) /*!< Comparator input plus connected to IO4 (pin PB6 for COMP2) (specific to COMP instance: COMP2) */
#define LL_COMP_INPUT_PLUS_IO5 (COMP_CSR_COMP2INPSEL_2) /*!< Comparator input plus connected to IO5 (pin PB7 for COMP2) (specific to COMP instance: COMP2) */
#if defined (STM32L011xx) || defined (STM32L021xx)
#define LL_COMP_INPUT_PLUS_IO6 (COMP_CSR_COMP2INPSEL_2 | COMP_CSR_COMP2INPSEL_0) /*!< Comparator input plus connected to IO6 (pin PA7 for COMP2) (specific to COMP instance: COMP2) (Available only on devices STM32L0 category 1) */
#endif
/**
* @}
*/
/** @defgroup COMP_LL_EC_INPUT_MINUS Comparator inputs - Input minus (input inverting) selection
* @{
*/
#define LL_COMP_INPUT_MINUS_1_4VREFINT (COMP_CSR_COMP2INNSEL_2 ) /*!< Comparator input minus connected to 1/4 VrefInt (specifity of COMP2 related to path to enable via SYSCFG: refer to comment in function @ref LL_COMP_SetInputMinus() ) (specific to COMP instance: COMP2) */
#define LL_COMP_INPUT_MINUS_1_2VREFINT (COMP_CSR_COMP2INNSEL_2 | COMP_CSR_COMP2INNSEL_0) /*!< Comparator input minus connected to 1/2 VrefInt (specifity of COMP2 related to path to enable via SYSCFG: refer to comment in function @ref LL_COMP_SetInputMinus() ) (specific to COMP instance: COMP2) */
#define LL_COMP_INPUT_MINUS_3_4VREFINT (COMP_CSR_COMP2INNSEL_2 | COMP_CSR_COMP2INNSEL_1 ) /*!< Comparator input minus connected to 3/4 VrefInt (specifity of COMP2 related to path to enable via SYSCFG: refer to comment in function @ref LL_COMP_SetInputMinus() ) (specific to COMP instance: COMP2) */
#define LL_COMP_INPUT_MINUS_VREFINT ((uint32_t)0x00000000U) /*!< Comparator input minus connected to VrefInt (specifity of COMP2 related to path to enable via SYSCFG: refer to comment in function @ref LL_COMP_SetInputMinus() ) */
#define LL_COMP_INPUT_MINUS_DAC1_CH1 ( COMP_CSR_COMP2INNSEL_1 ) /*!< Comparator input minus connected to DAC1 channel 1 (DAC_OUT1) */
#define LL_COMP_INPUT_MINUS_DAC1_CH2 ( COMP_CSR_COMP2INNSEL_1 | COMP_CSR_COMP2INNSEL_0) /*!< Comparator input minus connected to DAC1 channel 2 (DAC_OUT2) */
#define LL_COMP_INPUT_MINUS_IO1 ( COMP_CSR_COMP2INNSEL_0) /*!< Comparator input minus connected to IO1 (pin PA0 for COMP1, pin PA2 for COMP2) */
#define LL_COMP_INPUT_MINUS_IO2 (COMP_CSR_COMP2INNSEL_2 | COMP_CSR_COMP2INNSEL_1 | COMP_CSR_COMP2INNSEL_0) /*!< Comparator input minus connected to IO2 (pin PB3 for COMP2) (specific to COMP instance: COMP2) */
/**
* @}
*/
/** @defgroup COMP_LL_EC_OUTPUT_SELECTION_LPTIM Comparator output - Output selection specific to LPTIM peripheral
* @{
*/
#define LL_COMP_OUTPUT_LPTIM1_IN1_COMP1 (COMP_CSR_COMP1LPTIM1IN1) /*!< COMP output connected to TIM2 input capture 4 */
#define LL_COMP_OUTPUT_LPTIM1_IN1_COMP2 (COMP_CSR_COMP2LPTIM1IN1) /*!< COMP output connected to TIM2 input capture 4 */
#define LL_COMP_OUTPUT_LPTIM1_IN2_COMP2 (COMP_CSR_COMP2LPTIM1IN2) /*!< COMP output connected to TIM2 input capture 4 */
/**
* @}
*/
/** @defgroup COMP_LL_EC_OUTPUT_POLARITY Comparator output - Output polarity
* @{
*/
#define LL_COMP_OUTPUTPOL_NONINVERTED ((uint32_t)0x00000000U) /*!< 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_COMP1POLARITY) /*!< 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_LEVEL Comparator output - Output level
* @{
*/
#define LL_COMP_OUTPUT_LEVEL_LOW ((uint32_t)0x00000000U) /*!< Comparator output level low (if the polarity is not inverted, otherwise to be complemented) */
#define LL_COMP_OUTPUT_LEVEL_HIGH ((uint32_t)0x00000001U) /*!< 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 IP 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 ((uint32_t) 25U) /*!< Delay for COMP startup time */
/* Delay for comparator voltage scaler stabilization time */
/* (voltage from VrefInt, delay based on VrefInt startup time). */
/* Literal set to maximum value (refer to device datasheet, */
/* parameter "TVREFINT"). */
/* Unit: us */
#define LL_COMP_DELAY_VOLTAGE_SCALER_STAB_US ((uint32_t)3000U) /*!< 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
* @{
*/
/** @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<x> and COMP<x+1>).
* @rmtoll COMP1_CSR COMP1WM 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
* @retval None
*/
__STATIC_INLINE void LL_COMP_SetCommonWindowMode(COMP_Common_TypeDef *COMPxy_COMMON, uint32_t WindowMode)
{
MODIFY_REG(COMPxy_COMMON->CSR, COMP_CSR_COMP1WM, WindowMode);
}
/**
* @brief Get window mode of a pair of comparators instances
* (2 consecutive COMP instances odd and even COMP<x> and COMP<x+1>).
* @rmtoll COMP1_CSR COMP1WM 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
*/
__STATIC_INLINE uint32_t LL_COMP_GetCommonWindowMode(COMP_Common_TypeDef *COMPxy_COMMON)
{
return (uint32_t)(READ_BIT(COMPxy_COMMON->CSR, COMP_CSR_COMP1WM));
}
/**
* @}
*/
/** @defgroup COMP_LL_EF_Configuration_comparator_modes Configuration of comparator modes
* @{
*/
/**
* @brief Set comparator instance operating mode to adjust power and speed.
* @rmtoll COMP2_CSR COMP2SPEED LL_COMP_SetPowerMode
* @param COMPx Comparator instance
* @param PowerMode This parameter can be one of the following values:
* @arg @ref LL_COMP_POWERMODE_MEDIUMSPEED (1)
* @arg @ref LL_COMP_POWERMODE_ULTRALOWPOWER (1)
*
* (1) Available only on COMP instance: COMP2.
* @retval None
*/
__STATIC_INLINE void LL_COMP_SetPowerMode(COMP_TypeDef *COMPx, uint32_t PowerMode)
{
MODIFY_REG(COMPx->CSR, COMP_CSR_COMP2SPEED, PowerMode);
}
/**
* @brief Get comparator instance operating mode to adjust power and speed.
* @note Available only on COMP instance: COMP2.
* @rmtoll COMP2_CSR COMP2SPEED LL_COMP_GetPowerMode\n
* @param COMPx Comparator instance
* @retval Returned value can be one of the following values:
* @arg @ref LL_COMP_POWERMODE_MEDIUMSPEED (1)
* @arg @ref LL_COMP_POWERMODE_ULTRALOWPOWER (1)
*
* (1) Available only on COMP instance: COMP2.
*/
__STATIC_INLINE uint32_t LL_COMP_GetPowerMode(COMP_TypeDef *COMPx)
{
return (uint32_t)(READ_BIT(COMPx->CSR, COMP_CSR_COMP2SPEED));
}
/**
* @}
*/
/** @defgroup COMP_LL_EF_Configuration_comparator_inputs Configuration of comparator inputs
* @{
*/
/**
* @brief Set comparator inputs minus (inverting) and plus (non-inverting).
* @note This function shall only be used for COMP2.
* For setting COMP1 input it is recommended to use LL_COMP_SetInputMinus()
* Plus (non-inverting) input is not configurable on COMP1.
* Using this function for COMP1 will corrupt COMP1WM register
* @note On this STM32 serie, specificity if using COMP instance COMP2
* with COMP input based on VrefInt (VrefInt or subdivision
* of VrefInt): scaler bridge is based on VrefInt and requires
* to enable path from VrefInt (refer to literal
* SYSCFG_CFGR3_ENBUFLP_VREFINT_COMP).
* @rmtoll COMP2_CSR COMP2INNSEL LL_COMP_ConfigInputs\n
* COMP2_CSR COMP2INPSEL LL_COMP_ConfigInputs
* @param COMPx Comparator instance
* @param InputMinus This parameter can be one of the following values:
* @arg @ref LL_COMP_INPUT_MINUS_VREFINT
* @arg @ref LL_COMP_INPUT_MINUS_IO1
* @arg @ref LL_COMP_INPUT_MINUS_DAC1_CH1
* @arg @ref LL_COMP_INPUT_MINUS_DAC1_CH2
* @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_IO2
* @param InputPlus This parameter can be one of the following values:
* @arg @ref LL_COMP_INPUT_PLUS_IO1 (1)
* @arg @ref LL_COMP_INPUT_PLUS_IO2 (1)
* @arg @ref LL_COMP_INPUT_PLUS_IO3 (1)
* @arg @ref LL_COMP_INPUT_PLUS_IO4 (1)
* @arg @ref LL_COMP_INPUT_PLUS_IO5 (1)
* @arg @ref LL_COMP_INPUT_PLUS_IO6 (1)(2)
*
* (1) Available only on COMP instance: COMP2.
* (2) Available only on devices STM32L0 category 1.
* @retval None
*/
__STATIC_INLINE void LL_COMP_ConfigInputs(COMP_TypeDef *COMPx, uint32_t InputMinus, uint32_t InputPlus)
{
MODIFY_REG(COMPx->CSR,
COMP_CSR_COMP2INNSEL | COMP_CSR_COMP2INPSEL,
InputMinus | InputPlus);
}
/**
* @brief Set comparator input plus (non-inverting).
* @note Only COMP2 allows to set the input plus (non-inverting).
* For COMP1 it is always PA1 IO, except when Windows Mode is selected.
* @rmtoll COMP2_CSR COMP2INPSEL 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 (1)
* @arg @ref LL_COMP_INPUT_PLUS_IO2 (1)
* @arg @ref LL_COMP_INPUT_PLUS_IO3 (1)
* @arg @ref LL_COMP_INPUT_PLUS_IO4 (1)
* @arg @ref LL_COMP_INPUT_PLUS_IO5 (1)
* @arg @ref LL_COMP_INPUT_PLUS_IO6 (1)(2)
*
* (1) Available only on COMP instance: COMP2.
* (2) Available only on devices STM32L0 category 1.
* @retval None
*/
__STATIC_INLINE void LL_COMP_SetInputPlus(COMP_TypeDef *COMPx, uint32_t InputPlus)
{
MODIFY_REG(COMPx->CSR, COMP_CSR_COMP2INPSEL, InputPlus);
}
/**
* @brief Get comparator input plus (non-inverting).
* @note Only COMP2 allows to set the input plus (non-inverting).
* For COMP1 it is always PA1 IO, except when Windows Mode is selected.
* @rmtoll COMP2_CSR COMP2INPSEL LL_COMP_GetInputPlus
* @param COMPx Comparator instance
* @retval Returned value can be one of the following values:
* @arg @ref LL_COMP_INPUT_PLUS_IO1 (1)
* @arg @ref LL_COMP_INPUT_PLUS_IO2 (1)
* @arg @ref LL_COMP_INPUT_PLUS_IO3 (1)
* @arg @ref LL_COMP_INPUT_PLUS_IO4 (1)
* @arg @ref LL_COMP_INPUT_PLUS_IO5 (1)
* @arg @ref LL_COMP_INPUT_PLUS_IO6 (1)(2)
*
* (1) Available only on COMP instance: COMP2.
* (2) Available only on devices STM32L0 category 1.
*/
__STATIC_INLINE uint32_t LL_COMP_GetInputPlus(COMP_TypeDef *COMPx)
{
return (uint32_t)(READ_BIT(COMPx->CSR, COMP_CSR_COMP2INPSEL));
}
/**
* @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, specificity if using COMP instance COMP2
* with COMP input based on VrefInt (VrefInt or subdivision
* of VrefInt): scaler bridge is based on VrefInt and requires
* to enable path from VrefInt (refer to literal
* SYSCFG_CFGR3_ENBUFLP_VREFINT_COMP).
* @rmtoll COMP1_CSR COMP1INNSEL LL_COMP_SetInputMinus\n
* COMP2_CSR COMP2INNSEL LL_COMP_SetInputMinus
* @param COMPx Comparator instance
* @param InputMinus This parameter can be one of the following values:
* @arg @ref LL_COMP_INPUT_MINUS_VREFINT
* @arg @ref LL_COMP_INPUT_MINUS_IO1
* @arg @ref LL_COMP_INPUT_MINUS_DAC1_CH1
* @arg @ref LL_COMP_INPUT_MINUS_DAC1_CH2
* @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_IO2 (*)
*
* (*) Available only on COMP instance: COMP2.
* @retval None
*/
__STATIC_INLINE void LL_COMP_SetInputMinus(COMP_TypeDef *COMPx, uint32_t InputMinus)
{
MODIFY_REG(COMPx->CSR, COMP_CSR_COMP2INNSEL, 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 COMP1_CSR COMP1INNSEL LL_COMP_GetInputMinus\n
* COMP2_CSR COMP2INNSEL LL_COMP_GetInputMinus
* @param COMPx Comparator instance
* @retval Returned value can be one of the following values:
* @arg @ref LL_COMP_INPUT_MINUS_VREFINT
* @arg @ref LL_COMP_INPUT_MINUS_IO1
* @arg @ref LL_COMP_INPUT_MINUS_DAC1_CH1
* @arg @ref LL_COMP_INPUT_MINUS_DAC1_CH2
* @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_IO2 (*)
*
* (*) Available only on COMP instance: COMP2.
*/
__STATIC_INLINE uint32_t LL_COMP_GetInputMinus(COMP_TypeDef *COMPx)
{
return (uint32_t)(READ_BIT(COMPx->CSR, COMP_CSR_COMP2INNSEL));
}
/**
* @}
*/
/** @defgroup COMP_LL_EF_Configuration_comparator_output Configuration of comparator output
* @{
*/
/**
* @brief Set comparator output LPTIM.
* @rmtoll COMP1_CSR COMP1LPTIMIN1 LL_COMP_SetOutputLPTIM\n
* COMP2_CSR COMP2LPTIMIN1 LL_COMP_SetOutputLPTIM\n
* COMP2_CSR COMP2LPTIMIN2 LL_COMP_SetOutputLPTIM
* @param COMPx Comparator instance
* @param OutputLptim This parameter can be one of the following values:
* @arg @ref LL_COMP_OUTPUT_LPTIM1_IN1_COMP1 (*)
* @arg @ref LL_COMP_OUTPUT_LPTIM1_IN1_COMP2 (**)
* @arg @ref LL_COMP_OUTPUT_LPTIM1_IN2_COMP2 (**)
*
* (*) Available only on COMP instance: COMP1.\n
* (**) Available only on COMP instance: COMP2.
* @retval None
*/
__STATIC_INLINE void LL_COMP_SetOutputLPTIM(COMP_TypeDef *COMPx, uint32_t OutputLptim)
{
MODIFY_REG(COMPx->CSR, (COMP_CSR_COMP1LPTIM1IN1 | COMP_CSR_COMP2LPTIM1IN1 | COMP_CSR_COMP2LPTIM1IN2), OutputLptim);
}
/**
* @brief Get comparator output LPTIM.
* @rmtoll COMP1_CSR COMP1LPTIMIN1 LL_COMP_GetOutputLPTIM\n
* COMP2_CSR COMP2LPTIMIN1 LL_COMP_GetOutputLPTIM\n
* COMP2_CSR COMP2LPTIMIN2 LL_COMP_GetOutputLPTIM
* @param COMPx Comparator instance
* @retval Returned value can be one of the following values:
* @arg @ref LL_COMP_OUTPUT_LPTIM1_IN1_COMP1 (*)
* @arg @ref LL_COMP_OUTPUT_LPTIM1_IN1_COMP2 (**)
* @arg @ref LL_COMP_OUTPUT_LPTIM1_IN2_COMP2 (**)
*
* (*) Available only on COMP instance: COMP1.\n
* (**) Available only on COMP instance: COMP2.
*/
__STATIC_INLINE uint32_t LL_COMP_GetOutputLPTIM(COMP_TypeDef *COMPx)
{
return (uint32_t)(READ_BIT(COMPx->CSR, (COMP_CSR_COMP1LPTIM1IN1 | COMP_CSR_COMP2LPTIM1IN1 | COMP_CSR_COMP2LPTIM1IN2)));
}
/**
* @brief Set comparator instance output polarity.
* @rmtoll COMP COMP1POLARITY 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_COMPxPOLARITY, OutputPolarity);
}
/**
* @brief Get comparator instance output polarity.
* @rmtoll COMP COMP1POLARITY 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_COMPxPOLARITY));
}
/**
* @}
*/
/** @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 COMP1_CSR COMP1EN LL_COMP_Enable\n
* COMP2_CSR COMP2EN LL_COMP_Enable
* @param COMPx Comparator instance
* @retval None
*/
__STATIC_INLINE void LL_COMP_Enable(COMP_TypeDef *COMPx)
{
SET_BIT(COMPx->CSR, COMP_CSR_COMPxEN);
}
/**
* @brief Disable comparator instance.
* @rmtoll COMP1_CSR COMP1EN LL_COMP_Disable\n
* COMP2_CSR COMP2EN LL_COMP_Disable
* @param COMPx Comparator instance
* @retval None
*/
__STATIC_INLINE void LL_COMP_Disable(COMP_TypeDef *COMPx)
{
CLEAR_BIT(COMPx->CSR, COMP_CSR_COMPxEN);
}
/**
* @brief Get comparator enable state
* (0: COMP is disabled, 1: COMP is enabled)
* @rmtoll COMP1_CSR COMP1EN LL_COMP_IsEnabled\n
* COMP2_CSR COMP2EN 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_COMPxEN) == (COMP_CSR_COMPxEN));
}
/**
* @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 COMP1_CSR COMP1LOCK LL_COMP_Lock\n
* COMP2_CSR COMP2LOCK LL_COMP_Lock
* @param COMPx Comparator instance
* @retval None
*/
__STATIC_INLINE void LL_COMP_Lock(COMP_TypeDef *COMPx)
{
SET_BIT(COMPx->CSR, COMP_CSR_COMPxLOCK);
}
/**
* @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 COMP1_CSR COMP1LOCK LL_COMP_IsLocked\n
* COMP2_CSR COMP2LOCK 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_COMPxLOCK) == (COMP_CSR_COMPxLOCK));
}
/**
* @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 COMP1_CSR COMP1VALUE LL_COMP_ReadOutputLevel\n
* COMP2_CSR COMP2VALUE 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_COMPxOUTVALUE)
>> 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 /* __STM32L0xx_LL_COMP_H */
/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/