/** | |
****************************************************************************** | |
* @file stm32l0xx_ll_comp.h | |
* @author MCD Application Team | |
* @brief Header file of COMP LL module. | |
****************************************************************************** | |
* @attention | |
* | |
* <h2><center>© 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****/ |