| /** |
| ****************************************************************************** |
| * @file stm32l4xx_ll_comp.h |
| * @author MCD Application Team |
| * @brief Header file of COMP LL module. |
| ****************************************************************************** |
| * @attention |
| * |
| * Copyright (c) 2017 STMicroelectronics. |
| * All rights reserved. |
| * |
| * This software is licensed under terms that can be found in the LICENSE file |
| * in the root directory of this software component. |
| * If no LICENSE file comes with this software, it is provided AS-IS. |
| * |
| ****************************************************************************** |
| */ |
| |
| /* Define to prevent recursive inclusion -------------------------------------*/ |
| #ifndef STM32L4xx_LL_COMP_H |
| #define STM32L4xx_LL_COMP_H |
| |
| #ifdef __cplusplus |
| extern "C" { |
| #endif |
| |
| /* Includes ------------------------------------------------------------------*/ |
| #include "stm32l4xx.h" |
| |
| /** @addtogroup STM32L4xx_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 (30UL) /* Value equivalent to POSITION_VAL(COMP_CSR_VALUE) */ |
| |
| /** |
| * @} |
| */ |
| |
| /* Private macros ------------------------------------------------------------*/ |
| /** @defgroup COMP_LL_Private_Macros COMP 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 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 |
| * @{ |
| */ |
| #if defined(COMP2) |
| #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) /*!< 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). */ |
| #endif /* COMP2 */ |
| /** |
| * @} |
| */ |
| |
| /** @defgroup COMP_LL_EC_POWERMODE Comparator modes - Power mode |
| * @{ |
| */ |
| #define LL_COMP_POWERMODE_HIGHSPEED (0x00000000UL) /*!< COMP power mode to high speed */ |
| #define LL_COMP_POWERMODE_MEDIUMSPEED (COMP_CSR_PWRMODE_0) /*!< COMP power mode to medium speed */ |
| #define LL_COMP_POWERMODE_ULTRALOWPOWER (COMP_CSR_PWRMODE_1 | COMP_CSR_PWRMODE_0) /*!< COMP power mode to ultra-low power */ |
| /** |
| * @} |
| */ |
| |
| /** @defgroup COMP_LL_EC_INPUT_PLUS Comparator inputs - Input plus (input non-inverting) selection |
| * @{ |
| */ |
| #define LL_COMP_INPUT_PLUS_IO1 (0x00000000UL) /*!< Comparator input plus connected to IO1 (pin PC5 for COMP1, pin PB4 for COMP2) */ |
| #define LL_COMP_INPUT_PLUS_IO2 (COMP_CSR_INPSEL_0) /*!< Comparator input plus connected to IO2 (pin PB2 for COMP1, pin PB6 for COMP2) */ |
| #if defined(COMP_CSR_INPSEL_1) |
| #define LL_COMP_INPUT_PLUS_IO3 (COMP_CSR_INPSEL_1) /*!< Comparator input plus connected to IO3 (pin PA1 for COMP1, pin PA3 for COMP2) */ |
| #endif /* COMP_CSR_INPSEL_1 */ |
| /** |
| * @} |
| */ |
| |
| /** @defgroup COMP_LL_EC_INPUT_MINUS Comparator inputs - Input minus (input inverting) selection |
| * @{ |
| */ |
| #define LL_COMP_INPUT_MINUS_1_4VREFINT ( COMP_CSR_SCALEN | COMP_CSR_BRGEN) /*!< Comparator input minus connected to 1/4 VrefInt */ |
| #define LL_COMP_INPUT_MINUS_1_2VREFINT ( COMP_CSR_INMSEL_0 | COMP_CSR_SCALEN | COMP_CSR_BRGEN) /*!< Comparator input minus connected to 1/2 VrefInt */ |
| #define LL_COMP_INPUT_MINUS_3_4VREFINT ( COMP_CSR_INMSEL_1 | COMP_CSR_SCALEN | COMP_CSR_BRGEN) /*!< Comparator input minus connected to 3/4 VrefInt */ |
| #define LL_COMP_INPUT_MINUS_VREFINT ( COMP_CSR_INMSEL_1 | COMP_CSR_INMSEL_0 | COMP_CSR_SCALEN ) /*!< 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 PB1 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) */ |
| #if defined(COMP_CSR_INMESEL_1) |
| #define LL_COMP_INPUT_MINUS_IO3 ( COMP_CSR_INMESEL_0 | COMP_CSR_INMSEL_2 | COMP_CSR_INMSEL_1 | COMP_CSR_INMSEL_0) /*!< Comparator input minus connected to IO3 (pin PA0 for COMP1, pin PA2 for COMP2) */ |
| #define LL_COMP_INPUT_MINUS_IO4 (COMP_CSR_INMESEL_1 | COMP_CSR_INMSEL_2 | COMP_CSR_INMSEL_1 | COMP_CSR_INMSEL_0) /*!< Comparator input minus connected to IO4 (pin PA4 for COMP1, pin PA4 for COMP2) */ |
| #define LL_COMP_INPUT_MINUS_IO5 (COMP_CSR_INMESEL_1 | COMP_CSR_INMESEL_0 | COMP_CSR_INMSEL_2 | COMP_CSR_INMSEL_1 | COMP_CSR_INMSEL_0) /*!< Comparator input minus connected to IO5 (pin PA5 for COMP1, pin PA5 for COMP2) */ |
| #endif |
| /** |
| * @} |
| */ |
| |
| /** @defgroup COMP_LL_EC_INPUT_LEGACY Comparator inputs legacy literals name |
| * @{ |
| */ |
| #define LL_COMP_WINDOWMODE_ENABLE LL_COMP_WINDOWMODE_COMP1_INPUT_PLUS_COMMON |
| |
| #define LL_COMP_INVERTINGINPUT_1_4VREFINT LL_COMP_INPUT_MINUS_1_4VREFINT |
| #define LL_COMP_INVERTINGINPUT_1_2VREFINT LL_COMP_INPUT_MINUS_1_2VREFINT |
| #define LL_COMP_INVERTINGINPUT_3_4VREFINT LL_COMP_INPUT_MINUS_3_4VREFINT |
| #define LL_COMP_INVERTINGINPUT_VREFINT LL_COMP_INPUT_MINUS_VREFINT |
| #define LL_COMP_INVERTINGINPUT_DAC1 LL_COMP_INPUT_MINUS_DAC1_CH1 |
| #define LL_COMP_INVERTINGINPUT_DAC2 LL_COMP_INPUT_MINUS_DAC1_CH2 |
| #define LL_COMP_INVERTINGINPUT_IO1 LL_COMP_INPUT_MINUS_IO1 |
| #define LL_COMP_INVERTINGINPUT_IO2 LL_COMP_INPUT_MINUS_IO2 |
| #if defined(COMP_CSR_INMESEL_1) |
| #define LL_COMP_INVERTINGINPUT_IO3 LL_COMP_INPUT_MINUS_IO3 |
| #define LL_COMP_INVERTINGINPUT_IO4 LL_COMP_INPUT_MINUS_IO4 |
| #define LL_COMP_INVERTINGINPUT_IO5 LL_COMP_INPUT_MINUS_IO5 |
| #endif /* COMP_CSR_INMESEL_1 */ |
| |
| #define LL_COMP_NONINVERTINGINPUT_IO1 LL_COMP_INPUT_PLUS_IO1 |
| #define LL_COMP_NONINVERTINGINPUT_IO2 LL_COMP_INPUT_PLUS_IO2 |
| #if defined(COMP_CSR_INPSEL_1) |
| #define LL_COMP_NONINVERTINGINPUT_IO3 LL_COMP_INPUT_PLUS_IO3 |
| #endif /* COMP_CSR_INPSEL_1 */ |
| /** |
| * @} |
| */ |
| |
| /** @defgroup COMP_LL_EC_INPUT_HYSTERESIS Comparator input - Hysteresis |
| * @{ |
| */ |
| #define LL_COMP_HYSTERESIS_NONE (0x00000000UL) /*!< No hysteresis */ |
| #define LL_COMP_HYSTERESIS_LOW ( COMP_CSR_HYST_0) /*!< Hysteresis level low */ |
| #define LL_COMP_HYSTERESIS_MEDIUM (COMP_CSR_HYST_1 ) /*!< Hysteresis level medium */ |
| #define LL_COMP_HYSTERESIS_HIGH (COMP_CSR_HYST_1 | COMP_CSR_HYST_0) /*!< Hysteresis level high */ |
| /** |
| * @} |
| */ |
| |
| /** @defgroup COMP_LL_EC_OUTPUT_POLARITY Comparator output - Output polarity |
| * @{ |
| */ |
| #define LL_COMP_OUTPUTPOL_NONINVERTED (0x00000000UL) /*!< COMP output polarity is not inverted: comparator output is high when the plus (non-inverting) input is at a higher voltage than the minus (inverting) input */ |
| #define LL_COMP_OUTPUTPOL_INVERTED (COMP_CSR_POLARITY) /*!< COMP output polarity is inverted: comparator output is low when the plus (non-inverting) input is at a lower voltage than the minus (inverting) input */ |
| /** |
| * @} |
| */ |
| |
| /** @defgroup COMP_LL_EC_OUTPUT_BLANKING_SOURCE Comparator output - Blanking source |
| * @{ |
| */ |
| #define LL_COMP_BLANKINGSRC_NONE (0x00000000UL) /*!<Comparator output without blanking */ |
| #define LL_COMP_BLANKINGSRC_TIM1_OC5_COMP1 (COMP_CSR_BLANKING_0) /*!< Comparator output blanking source TIM1 OC5 (specific to COMP instance: COMP1) */ |
| #define LL_COMP_BLANKINGSRC_TIM2_OC3_COMP1 (COMP_CSR_BLANKING_1) /*!< Comparator output blanking source TIM2 OC3 (specific to COMP instance: COMP1) */ |
| #define LL_COMP_BLANKINGSRC_TIM3_OC3_COMP1 (COMP_CSR_BLANKING_2) /*!< Comparator output blanking source TIM3 OC3 (specific to COMP instance: COMP1) */ |
| #define LL_COMP_BLANKINGSRC_TIM3_OC4_COMP2 (COMP_CSR_BLANKING_0) /*!< Comparator output blanking source TIM3 OC4 (specific to COMP instance: COMP2) */ |
| #define LL_COMP_BLANKINGSRC_TIM8_OC5_COMP2 (COMP_CSR_BLANKING_1) /*!< Comparator output blanking source TIM8 OC5 (specific to COMP instance: COMP2) */ |
| #define LL_COMP_BLANKINGSRC_TIM15_OC1_COMP2 (COMP_CSR_BLANKING_2) /*!< Comparator output blanking source TIM15 OC1 (specific to COMP instance: COMP2) */ |
| /** |
| * @} |
| */ |
| |
| /** @defgroup COMP_LL_EC_OUTPUT_BLANKING_SOURCE_LEGACY Comparator output blanking source legacy literals name |
| * @{ |
| */ |
| #define LL_COMP_BLANKINGSRC_TIM1_OC5 (LL_COMP_BLANKINGSRC_TIM1_OC5_COMP1) |
| #define LL_COMP_BLANKINGSRC_TIM2_OC3 (LL_COMP_BLANKINGSRC_TIM2_OC3_COMP1) |
| #define LL_COMP_BLANKINGSRC_TIM3_OC3 (LL_COMP_BLANKINGSRC_TIM3_OC3_COMP1) |
| |
| #define LL_COMP_BLANKINGSRC_TIM3_OC4 (LL_COMP_BLANKINGSRC_TIM3_OC4_COMP2) |
| #define LL_COMP_BLANKINGSRC_TIM8_OC5 (LL_COMP_BLANKINGSRC_TIM8_OC5_COMP2) |
| #define LL_COMP_BLANKINGSRC_TIM15_OC1 (LL_COMP_BLANKINGSRC_TIM15_OC1_COMP2) |
| /** |
| * @} |
| */ |
| |
| /** @defgroup COMP_LL_EC_OUTPUT_LEVEL Comparator output - Output level |
| * @{ |
| */ |
| #define LL_COMP_OUTPUT_LEVEL_LOW (0x00000000UL) /*!< Comparator output level low (if the polarity is not inverted, otherwise to be complemented) */ |
| #define LL_COMP_OUTPUT_LEVEL_HIGH (0x00000001UL) /*!< Comparator output level high (if the polarity is not inverted, otherwise to be complemented) */ |
| /** |
| * @} |
| */ |
| |
| /** @defgroup COMP_LL_EC_HW_DELAYS Definitions of COMP hardware constraints delays |
| * @note Only COMP peripheral HW delays are defined in COMP LL driver driver, |
| * not timeout values. |
| * For details on delays values, refer to descriptions in source code |
| * above each literal definition. |
| * @{ |
| */ |
| |
| /* Delay for comparator startup time. */ |
| /* Note: Delay required to reach propagation delay specification. */ |
| /* Literal set to maximum value (refer to device datasheet, */ |
| /* parameter "tSTART"). */ |
| /* Unit: us */ |
| #define LL_COMP_DELAY_STARTUP_US ( 80UL) /*!< Delay for COMP startup time */ |
| |
| /* Delay for comparator voltage scaler stabilization time. */ |
| /* Note: Voltage scaler is used when selecting comparator input */ |
| /* based on VrefInt: VrefInt or subdivision of VrefInt. */ |
| /* Literal set to maximum value (refer to device datasheet, */ |
| /* parameter "tSTART_SCALER"). */ |
| /* Unit: us */ |
| #define LL_COMP_DELAY_VOLTAGE_SCALER_STAB_US ( 200UL) /*!< Delay for COMP voltage scaler stabilization time */ |
| |
| /** |
| * @} |
| */ |
| |
| /** |
| * @} |
| */ |
| |
| /* Exported macro ------------------------------------------------------------*/ |
| /** @defgroup COMP_LL_Exported_Macros COMP Exported Macros |
| * @{ |
| */ |
| /** @defgroup COMP_LL_EM_WRITE_READ Common write and read registers macro |
| * @{ |
| */ |
| |
| /** |
| * @brief Write a value in COMP register |
| * @param __INSTANCE__ comparator instance |
| * @param __REG__ Register to be written |
| * @param __VALUE__ Value to be written in the register |
| * @retval None |
| */ |
| #define LL_COMP_WriteReg(__INSTANCE__, __REG__, __VALUE__) WRITE_REG((__INSTANCE__)->__REG__, (__VALUE__)) |
| |
| /** |
| * @brief Read a value in COMP register |
| * @param __INSTANCE__ comparator instance |
| * @param __REG__ Register to be read |
| * @retval Register value |
| */ |
| #define LL_COMP_ReadReg(__INSTANCE__, __REG__) READ_REG((__INSTANCE__)->__REG__) |
| /** |
| * @} |
| */ |
| |
| /** @defgroup COMP_LL_EM_HELPER_MACRO COMP helper macro |
| * @{ |
| */ |
| |
| /** |
| * @brief Helper macro to select the COMP common instance |
| * to which is belonging the selected COMP instance. |
| * @note COMP common register instance can be used to |
| * set parameters common to several COMP instances. |
| * Refer to functions having argument "COMPxy_COMMON" as parameter. |
| * @param __COMPx__ COMP instance |
| * @retval COMP common instance or value "0" if there is no COMP common instance. |
| */ |
| #define __LL_COMP_COMMON_INSTANCE(__COMPx__) \ |
| (COMP12_COMMON) |
| |
| /** |
| * @} |
| */ |
| |
| /** |
| * @} |
| */ |
| |
| /* Exported functions --------------------------------------------------------*/ |
| /** @defgroup COMP_LL_Exported_Functions COMP Exported Functions |
| * @{ |
| */ |
| |
| #if defined(COMP2) |
| /** @defgroup COMP_LL_EF_Configuration_comparator_common Configuration of COMP hierarchical scope: common to several COMP instances |
| * @{ |
| */ |
| |
| /** |
| * @brief Set window mode of a pair of comparators instances |
| * (2 consecutive COMP instances COMP<x> and COMP<x+1>). |
| * @rmtoll CSR WINMODE LL_COMP_SetCommonWindowMode |
| * @param COMPxy_COMMON Comparator common instance |
| * (can be set directly from CMSIS definition or by using helper macro @ref __LL_COMP_COMMON_INSTANCE() ) |
| * @param WindowMode This parameter can be one of the following values: |
| * @arg @ref LL_COMP_WINDOWMODE_DISABLE |
| * @arg @ref LL_COMP_WINDOWMODE_COMP1_INPUT_PLUS_COMMON |
| * @retval None |
| */ |
| __STATIC_INLINE void LL_COMP_SetCommonWindowMode(COMP_Common_TypeDef *COMPxy_COMMON, uint32_t WindowMode) |
| { |
| /* Note: On this STM32 series, window mode can be set only */ |
| /* from COMP instance: COMP2. */ |
| MODIFY_REG(COMPxy_COMMON->CSR, COMP_CSR_WINMODE, WindowMode); |
| } |
| |
| /** |
| * @brief Get window mode of a pair of comparators instances |
| * (2 consecutive COMP instances COMP<x> and COMP<x+1>). |
| * @rmtoll CSR WINMODE LL_COMP_GetCommonWindowMode |
| * @param COMPxy_COMMON Comparator common instance |
| * (can be set directly from CMSIS definition or by using helper macro @ref __LL_COMP_COMMON_INSTANCE() ) |
| * @retval Returned value can be one of the following values: |
| * @arg @ref LL_COMP_WINDOWMODE_DISABLE |
| * @arg @ref LL_COMP_WINDOWMODE_COMP1_INPUT_PLUS_COMMON |
| */ |
| __STATIC_INLINE uint32_t LL_COMP_GetCommonWindowMode(COMP_Common_TypeDef *COMPxy_COMMON) |
| { |
| return (uint32_t)(READ_BIT(COMPxy_COMMON->CSR, COMP_CSR_WINMODE)); |
| } |
| |
| /** |
| * @} |
| */ |
| |
| #endif /* COMP2 */ |
| /** @defgroup COMP_LL_EF_Configuration_comparator_modes Configuration of comparator modes |
| * @{ |
| */ |
| |
| /** |
| * @brief Set comparator instance operating mode to adjust power and speed. |
| * @rmtoll CSR PWRMODE LL_COMP_SetPowerMode |
| * @param COMPx Comparator instance |
| * @param PowerMode This parameter can be one of the following values: |
| * @arg @ref LL_COMP_POWERMODE_HIGHSPEED |
| * @arg @ref LL_COMP_POWERMODE_MEDIUMSPEED |
| * @arg @ref LL_COMP_POWERMODE_ULTRALOWPOWER |
| * @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 |
| * @arg @ref LL_COMP_POWERMODE_ULTRALOWPOWER |
| */ |
| __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 series, scaler bridge is configurable: |
| * to optimize power consumption, this function enables the |
| * voltage scaler bridge only when required |
| * (when selecting comparator input based on VrefInt: VrefInt or |
| * subdivision of VrefInt). |
| * - For scaler bridge power consumption values, |
| * refer to device datasheet, parameter "IDDA(SCALER)". |
| * - Voltage scaler requires a delay for voltage stabilization. |
| * Refer to device datasheet, parameter "tSTART_SCALER". |
| * - Scaler bridge is common for all comparator instances, |
| * therefore if at least one of the comparator instance |
| * is requiring the scaler bridge, it remains enabled. |
| * @rmtoll CSR INMSEL LL_COMP_ConfigInputs\n |
| * CSR INPSEL LL_COMP_ConfigInputs\n |
| * CSR BRGEN LL_COMP_ConfigInputs\n |
| * CSR SCALEN LL_COMP_ConfigInputs |
| * @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 (*) |
| * @arg @ref LL_COMP_INPUT_MINUS_IO4 (*) |
| * @arg @ref LL_COMP_INPUT_MINUS_IO5 (*) |
| * |
| * (*) Parameter not available on all devices. |
| * @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 (*) |
| * |
| * (*) Parameter not available on all devices. |
| * @retval None |
| */ |
| __STATIC_INLINE void LL_COMP_ConfigInputs(COMP_TypeDef *COMPx, uint32_t InputMinus, uint32_t InputPlus) |
| { |
| #if defined(COMP_CSR_INMESEL_1) |
| MODIFY_REG(COMPx->CSR, |
| COMP_CSR_INMESEL | COMP_CSR_INMSEL | COMP_CSR_INPSEL | COMP_CSR_SCALEN | COMP_CSR_BRGEN, |
| InputMinus | InputPlus); |
| #else |
| MODIFY_REG(COMPx->CSR, |
| COMP_CSR_INMSEL | COMP_CSR_INPSEL | COMP_CSR_SCALEN | COMP_CSR_BRGEN, |
| InputMinus | InputPlus); |
| #endif |
| } |
| |
| /** |
| * @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 (*) |
| * |
| * (*) Parameter not available on all devices. |
| * @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 (*) |
| * |
| * (*) Parameter not available on all devices. |
| */ |
| __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 series, scaler bridge is configurable: |
| * to optimize power consumption, this function enables the |
| * voltage scaler bridge only when required |
| * (when selecting comparator input based on VrefInt: VrefInt or |
| * subdivision of VrefInt). |
| * - For scaler bridge power consumption values, |
| * refer to device datasheet, parameter "IDDA(SCALER)". |
| * - Voltage scaler requires a delay for voltage stabilization. |
| * Refer to device datasheet, parameter "tSTART_SCALER". |
| * - Scaler bridge is common for all comparator instances, |
| * therefore if at least one of the comparator instance |
| * is requiring the scaler bridge, it remains enabled. |
| * @rmtoll CSR INMSEL LL_COMP_SetInputMinus\n |
| * CSR BRGEN LL_COMP_SetInputMinus\n |
| * CSR SCALEN 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 (*) |
| * @arg @ref LL_COMP_INPUT_MINUS_IO4 (*) |
| * @arg @ref LL_COMP_INPUT_MINUS_IO5 (*) |
| * |
| * (*) Parameter not available on all devices. |
| * @retval None |
| */ |
| __STATIC_INLINE void LL_COMP_SetInputMinus(COMP_TypeDef *COMPx, uint32_t InputMinus) |
| { |
| #if defined(COMP_CSR_INMESEL_1) |
| MODIFY_REG(COMPx->CSR, COMP_CSR_INMESEL | COMP_CSR_INMSEL | COMP_CSR_SCALEN | COMP_CSR_BRGEN, InputMinus); |
| #else |
| MODIFY_REG(COMPx->CSR, COMP_CSR_INMSEL | COMP_CSR_SCALEN | COMP_CSR_BRGEN, InputMinus); |
| #endif /* COMP_CSR_INMESEL_1 */ |
| } |
| |
| /** |
| * @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\n |
| * CSR BRGEN LL_COMP_GetInputMinus\n |
| * CSR SCALEN 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 (*) |
| * @arg @ref LL_COMP_INPUT_MINUS_IO4 (*) |
| * @arg @ref LL_COMP_INPUT_MINUS_IO5 (*) |
| * |
| * (*) Parameter not available on all devices. |
| */ |
| __STATIC_INLINE uint32_t LL_COMP_GetInputMinus(COMP_TypeDef *COMPx) |
| { |
| #if defined(COMP_CSR_INMESEL_1) |
| return (uint32_t)(READ_BIT(COMPx->CSR, COMP_CSR_INMESEL | COMP_CSR_INMSEL | COMP_CSR_SCALEN | COMP_CSR_BRGEN)); |
| #else |
| return (uint32_t)(READ_BIT(COMPx->CSR, COMP_CSR_INMSEL | COMP_CSR_SCALEN | COMP_CSR_BRGEN)); |
| #endif /* COMP_CSR_INMESEL_1 */ |
| } |
| |
| /** |
| * @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_OC5_COMP1 (1)(2) |
| * @arg @ref LL_COMP_BLANKINGSRC_TIM2_OC3_COMP1 (1)(2) |
| * @arg @ref LL_COMP_BLANKINGSRC_TIM3_OC3_COMP1 (1)(2) |
| * @arg @ref LL_COMP_BLANKINGSRC_TIM3_OC4_COMP2 (1)(3) |
| * @arg @ref LL_COMP_BLANKINGSRC_TIM8_OC5_COMP2 (1)(3) |
| * @arg @ref LL_COMP_BLANKINGSRC_TIM15_OC1_COMP2 (1)(3) |
| * |
| * (1) Parameter availability depending on timer availability |
| * on the selected device. |
| * (2) On STM32L4, parameter available only on comparator instance: COMP1. |
| * (3) On STM32L4, parameter available only on comparator instance: COMP2. |
| * @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_OC5_COMP1 (1)(2) |
| * @arg @ref LL_COMP_BLANKINGSRC_TIM2_OC3_COMP1 (1)(2) |
| * @arg @ref LL_COMP_BLANKINGSRC_TIM3_OC3_COMP1 (1)(2) |
| * @arg @ref LL_COMP_BLANKINGSRC_TIM3_OC4_COMP2 (1)(3) |
| * @arg @ref LL_COMP_BLANKINGSRC_TIM8_OC5_COMP2 (1)(3) |
| * @arg @ref LL_COMP_BLANKINGSRC_TIM15_OC1_COMP2 (1)(3) |
| * |
| * (1) Parameter availability depending on timer availability |
| * on the selected device. |
| * (2) On STM32L4, parameter available only on comparator instance: COMP1. |
| * (3) On STM32L4, parameter available only on comparator instance: COMP2. |
| */ |
| __STATIC_INLINE uint32_t LL_COMP_GetOutputBlankingSource(COMP_TypeDef *COMPx) |
| { |
| return (uint32_t)(READ_BIT(COMPx->CSR, COMP_CSR_BLANKING)); |
| } |
| |
| /** |
| * @} |
| */ |
| |
| /** @defgroup COMP_LL_EF_Configuration_Legacy_Functions Configuration of COMP, legacy functions name |
| * @{ |
| */ |
| /* Old functions name kept for legacy purpose, to be replaced by the */ |
| /* current functions name. */ |
| __STATIC_INLINE void LL_COMP_SetInputNonInverting(COMP_TypeDef *COMPx, uint32_t InputNonInverting) |
| { |
| LL_COMP_SetInputPlus(COMPx, InputNonInverting); |
| } |
| __STATIC_INLINE uint32_t LL_COMP_GetInputNonInverting(COMP_TypeDef *COMPx) |
| { |
| return LL_COMP_GetInputPlus(COMPx); |
| } |
| |
| __STATIC_INLINE void LL_COMP_SetInputInverting(COMP_TypeDef *COMPx, uint32_t InputInverting) |
| { |
| LL_COMP_SetInputMinus(COMPx, InputInverting); |
| } |
| __STATIC_INLINE uint32_t LL_COMP_GetInputInverting(COMP_TypeDef *COMPx) |
| { |
| return LL_COMP_GetInputMinus(COMPx); |
| } |
| |
| /** |
| * @} |
| */ |
| |
| /** @defgroup COMP_LL_EF_Operation Operation on comparator instance |
| * @{ |
| */ |
| |
| /** |
| * @brief Enable comparator instance. |
| * @note After enable from off state, comparator requires a delay |
| * to reach reach propagation delay specification. |
| * Refer to device datasheet, parameter "tSTART". |
| * @rmtoll CSR EN LL_COMP_Enable |
| * @param COMPx Comparator instance |
| * @retval None |
| */ |
| __STATIC_INLINE void LL_COMP_Enable(COMP_TypeDef *COMPx) |
| { |
| SET_BIT(COMPx->CSR, COMP_CSR_EN); |
| } |
| |
| /** |
| * @brief Disable comparator instance. |
| * @rmtoll CSR EN LL_COMP_Disable |
| * @param COMPx Comparator instance |
| * @retval None |
| */ |
| __STATIC_INLINE void LL_COMP_Disable(COMP_TypeDef *COMPx) |
| { |
| CLEAR_BIT(COMPx->CSR, COMP_CSR_EN); |
| } |
| |
| /** |
| * @brief Get comparator enable state |
| * (0: COMP is disabled, 1: COMP is enabled) |
| * @rmtoll CSR EN LL_COMP_IsEnabled |
| * @param COMPx Comparator instance |
| * @retval State of bit (1 or 0). |
| */ |
| __STATIC_INLINE uint32_t LL_COMP_IsEnabled(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 /* STM32L4xx_LL_COMP_H */ |
