The official Mbed 2 C/C++ SDK provides the software platform and libraries to build your applications.
Dependents: hello SerialTestv11 SerialTestv12 Sierpinski ... more
mbed 2
This is the mbed 2 library. If you'd like to learn about Mbed OS please see the mbed-os docs.
Diff: TARGET_NUCLEO_L011K4/TOOLCHAIN_ARM_MICRO/stm32l0xx_ll_comp.h
- Revision:
- 171:3a7713b1edbc
- Parent:
- 167:84c0a372a020
diff -r e95d10626187 -r 3a7713b1edbc TARGET_NUCLEO_L011K4/TOOLCHAIN_ARM_MICRO/stm32l0xx_ll_comp.h --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/TARGET_NUCLEO_L011K4/TOOLCHAIN_ARM_MICRO/stm32l0xx_ll_comp.h Thu Nov 08 11:45:42 2018 +0000 @@ -0,0 +1,721 @@ +/** + ****************************************************************************** + * @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****/