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Diff: TARGET_NUCLEO_L476RG/stm32l4xx_ll_comp.h
- Revision:
- 122:f9eeca106725
diff -r 6c34061e7c34 -r f9eeca106725 TARGET_NUCLEO_L476RG/stm32l4xx_ll_comp.h --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/TARGET_NUCLEO_L476RG/stm32l4xx_ll_comp.h Thu Jul 07 14:34:11 2016 +0100 @@ -0,0 +1,892 @@ +/** + ****************************************************************************** + * @file stm32l4xx_ll_comp.h + * @author MCD Application Team + * @version V1.5.1 + * @date 31-May-2016 + * @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 __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 ((uint32_t)30U) /* Value equivalent to POSITION_VAL(COMP_CSR_VALUE) */ + +/** + * @} + */ + +/* 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 + * @{ + */ +#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_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). */ +/** + * @} + */ + +/** @defgroup COMP_LL_EC_POWERMODE Comparator modes - Power mode + * @{ + */ +#define LL_COMP_POWERMODE_HIGHSPEED ((uint32_t)0x00000000U) /*!< 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 ((uint32_t)0x00000000U) /*!< 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 | COMP_CSR_INPSEL_0) /*!< Comparator input plus connected to IO3 (pin PA1 for COMP1, pin PA3 for COMP2) */ +#endif +/** + * @} + */ + +/** @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 + +#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 +/** + * @} + */ + +/** @defgroup COMP_LL_EC_INPUT_HYSTERESIS Comparator input - Hysteresis + * @{ + */ +#define LL_COMP_HYSTERESIS_NONE ((uint32_t)0x00000000U) /*!< 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 ((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_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 ((uint32_t)0x00000000U) /*!<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 ((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) 80U) /*!< 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 ((uint32_t) 200U) /*!< 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 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 serie, 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 odd and even 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)); +} + +/** + * @} + */ + +/** @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 serie, 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 serie, 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 +} + +/** + * @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 +} + +/** + * @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)); +} + +/** + * @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)); +} + +/** + * @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 */ + +/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/