| /** |
| ****************************************************************************** |
| * @file stm32f0xx_ll_comp.h |
| * @author MCD Application Team |
| * @brief Header file of COMP LL module. |
| ****************************************************************************** |
| * @attention |
| * |
| * Copyright (c) 2016 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 __STM32F0xx_LL_COMP_H |
| #define __STM32F0xx_LL_COMP_H |
| |
| #ifdef __cplusplus |
| extern "C" { |
| #endif |
| |
| /* Includes ------------------------------------------------------------------*/ |
| #include "stm32f0xx.h" |
| |
| /** @addtogroup STM32F0xx_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 |
| * @{ |
| */ |
| |
| /* Differentiation between COMP instances */ |
| /* Note: Value not corresponding to a register offset since both */ |
| /* COMP instances are sharing the same register) . */ |
| #define COMPX_BASE COMP_BASE |
| #define COMPX (COMP1 - COMP2) |
| |
| /* COMP registers bits positions */ |
| #define LL_COMP_OUTPUT_LEVEL_BITOFFSET_POS ((uint32_t)14U) /* Value equivalent to POSITION_VAL(COMP_CSR_COMP1OUT) */ |
| |
| /** |
| * @} |
| */ |
| |
| /* Private macros ------------------------------------------------------------*/ |
| /** @defgroup COMP_LL_Private_Macros COMP Private Macros |
| * @{ |
| */ |
| |
| /** |
| * @brief Driver macro reserved for internal use: if COMP instance selected |
| * is odd (COMP1, COMP3, ...), return value '1', else return '0'. |
| * @param __COMP_INSTANCE__ COMP instance |
| * @retval If COMP instance is odd, value '1'. Else, value '0'. |
| */ |
| #define __COMP_IS_INSTANCE_ODD(__COMP_INSTANCE__) \ |
| ((~(((uint32_t)(__COMP_INSTANCE__) - COMP_BASE) >> 1U)) & 0x00000001) |
| |
| /** |
| * @brief Driver macro reserved for internal use: if COMP instance selected |
| * is even (COMP2, COMP4, ...), return value '1', else return '0'. |
| * @param __COMP_INSTANCE__ COMP instance |
| * @retval If COMP instance is even, value '1'. Else, value '0'. |
| */ |
| #define __COMP_IS_INSTANCE_EVEN(__COMP_INSTANCE__) \ |
| (((uint32_t)(__COMP_INSTANCE__) - COMP_BASE) >> 1U) |
| |
| /** |
| * @brief Driver macro reserved for internal use: from COMP instance |
| * selected, set offset of bits into COMP register. |
| * @note Since both COMP instances are sharing the same register |
| * with 2 area of bits with an offset of 16 bits, this function |
| * returns value "0" if COMP1 is selected and "16" if COMP2 is |
| * selected. |
| * @param __COMP_INSTANCE__ COMP instance |
| * @retval Bits offset in register 32 bits |
| */ |
| #define __COMP_BITOFFSET_INSTANCE(__COMP_INSTANCE__) \ |
| (((uint32_t)(__COMP_INSTANCE__) - COMP_BASE) << 3U) |
| |
| /** |
| * @} |
| */ |
| |
| /* 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 OutputSelection; /*!< Set comparator output selection. |
| This parameter can be a value of @ref COMP_LL_EC_OUTPUT_SELECTION |
| |
| This feature can be modified afterwards using unitary function @ref LL_COMP_SetOutputSelection(). */ |
| |
| 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_WNDWEN) /*!< 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_COMP1MODE_0) /*!< COMP power mode to medium speed */ |
| #define LL_COMP_POWERMODE_LOWPOWER (COMP_CSR_COMP1MODE_1) /*!< COMP power mode to low power */ |
| #define LL_COMP_POWERMODE_ULTRALOWPOWER (COMP_CSR_COMP1MODE_1 | COMP_CSR_COMP1MODE_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 PA1 for COMP1, pin PA3 for COMP2) */ |
| #define LL_COMP_INPUT_PLUS_DAC1_CH1 (COMP_CSR_COMP1SW1) /*!< Comparator input plus connected to DAC1 channel 1 (DAC_OUT1), through dedicated switch (Note: this switch is solely intended to redirect signals onto high impedance input, such as COMP1 input plus (highly resistive switch)) (specific to COMP instance: COMP1) */ |
| /** |
| * @} |
| */ |
| |
| /** @defgroup COMP_LL_EC_INPUT_MINUS Comparator inputs - Input minus (input inverting) selection |
| * @{ |
| */ |
| #define LL_COMP_INPUT_MINUS_1_4VREFINT ((uint32_t)0x00000000U) /*!< Comparator input minus connected to 1/4 VrefInt */ |
| #define LL_COMP_INPUT_MINUS_1_2VREFINT ( COMP_CSR_COMP1INSEL_0) /*!< Comparator input minus connected to 1/2 VrefInt */ |
| #define LL_COMP_INPUT_MINUS_3_4VREFINT ( COMP_CSR_COMP1INSEL_1 ) /*!< Comparator input minus connected to 3/4 VrefInt */ |
| #define LL_COMP_INPUT_MINUS_VREFINT ( COMP_CSR_COMP1INSEL_1 | COMP_CSR_COMP1INSEL_0) /*!< Comparator input minus connected to VrefInt */ |
| #define LL_COMP_INPUT_MINUS_DAC1_CH1 (COMP_CSR_COMP1INSEL_2 ) /*!< Comparator input minus connected to DAC1 channel 1 (DAC_OUT1) */ |
| #define LL_COMP_INPUT_MINUS_DAC1_CH2 (COMP_CSR_COMP1INSEL_2 | COMP_CSR_COMP1INSEL_0) /*!< Comparator input minus connected to DAC1 channel 2 (DAC_OUT2) */ |
| #define LL_COMP_INPUT_MINUS_IO1 (COMP_CSR_COMP1INSEL_2 | COMP_CSR_COMP1INSEL_1 ) /*!< Comparator input minus connected to IO1 (pin PA0 for COMP1, pin PA2 for COMP2) */ |
| /** |
| * @} |
| */ |
| |
| /** @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_COMP1HYST_0) /*!< Hysteresis level low */ |
| #define LL_COMP_HYSTERESIS_MEDIUM (COMP_CSR_COMP1HYST_1 ) /*!< Hysteresis level medium */ |
| #define LL_COMP_HYSTERESIS_HIGH (COMP_CSR_COMP1HYST_1 | COMP_CSR_COMP1HYST_0) /*!< Hysteresis level high */ |
| /** |
| * @} |
| */ |
| |
| /** @defgroup COMP_LL_EC_OUTPUT_SELECTION Comparator output - Output selection |
| * @{ |
| */ |
| /* Note: Output redirection is common for COMP1 and COMP2 */ |
| #define LL_COMP_OUTPUT_NONE ((uint32_t)0x00000000U) /*!< COMP output is not connected to other peripherals (except GPIO and EXTI that are always connected to COMP output) */ |
| #define LL_COMP_OUTPUT_TIM1_BKIN (COMP_CSR_COMP1OUTSEL_0) /*!< COMP output connected to TIM1 break input (BKIN) */ |
| #define LL_COMP_OUTPUT_TIM1_IC1 (COMP_CSR_COMP1OUTSEL_1) /*!< COMP output connected to TIM1 input capture 1 */ |
| #define LL_COMP_OUTPUT_TIM1_OCCLR (COMP_CSR_COMP1OUTSEL_1 | COMP_CSR_COMP1OUTSEL_0) /*!< COMP output connected to TIM1 OCREF clear */ |
| #define LL_COMP_OUTPUT_TIM2_IC4 (COMP_CSR_COMP1OUTSEL_2) /*!< COMP output connected to TIM2 input capture 4 */ |
| #define LL_COMP_OUTPUT_TIM2_OCCLR (COMP_CSR_COMP1OUTSEL_2 | COMP_CSR_COMP1OUTSEL_0) /*!< COMP output connected to TIM2 OCREF clear */ |
| #define LL_COMP_OUTPUT_TIM3_IC1 (COMP_CSR_COMP1OUTSEL_2 | COMP_CSR_COMP1OUTSEL_1) /*!< COMP output connected to TIM3 input capture 1 */ |
| #define LL_COMP_OUTPUT_TIM3_OCCLR (COMP_CSR_COMP1OUTSEL_2 | COMP_CSR_COMP1OUTSEL_1 | COMP_CSR_COMP1OUTSEL_0) /*!< COMP output connected to TIM3 OCREF clear */ |
| /** |
| * @} |
| */ |
| |
| /** @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_COMP1POL) /*!< 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) 60U) /*!< 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 "tS_SC"). */ |
| /* 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 WNDWEN 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_WNDWEN, 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 WNDWEN 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_WNDWEN)); |
| } |
| |
| /** |
| * @} |
| */ |
| |
| /** @defgroup COMP_LL_EF_Configuration_comparator_modes Configuration of comparator modes |
| * @{ |
| */ |
| |
| /** |
| * @brief Set comparator instance operating mode to adjust power and speed. |
| * @rmtoll CSR COMP1MODE LL_COMP_SetPowerMode\n |
| * COMP2MODE 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_LOWPOWER |
| * @arg @ref LL_COMP_POWERMODE_ULTRALOWPOWER |
| * @retval None |
| */ |
| __STATIC_INLINE void LL_COMP_SetPowerMode(COMP_TypeDef *COMPx, uint32_t PowerMode) |
| { |
| MODIFY_REG(COMP->CSR, |
| COMP_CSR_COMP1MODE << __COMP_BITOFFSET_INSTANCE(COMPx), |
| PowerMode << __COMP_BITOFFSET_INSTANCE(COMPx) ); |
| } |
| |
| /** |
| * @brief Get comparator instance operating mode to adjust power and speed. |
| * @rmtoll CSR COMP1MODE LL_COMP_GetPowerMode\n |
| * COMP2MODE 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_LOWPOWER |
| * @arg @ref LL_COMP_POWERMODE_ULTRALOWPOWER |
| */ |
| __STATIC_INLINE uint32_t LL_COMP_GetPowerMode(COMP_TypeDef *COMPx) |
| { |
| return (uint32_t)(READ_BIT(COMP->CSR, |
| COMP_CSR_COMP1MODE << __COMP_BITOFFSET_INSTANCE(COMPx)) |
| >> __COMP_BITOFFSET_INSTANCE(COMPx) |
| ); |
| } |
| |
| /** |
| * @} |
| */ |
| |
| /** @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. |
| * @rmtoll CSR COMP1INSEL LL_COMP_ConfigInputs\n |
| * CSR COMP2INSEL LL_COMP_ConfigInputs\n |
| * CSR COMP1SW1 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 |
| * @param InputPlus This parameter can be one of the following values: |
| * @arg @ref LL_COMP_INPUT_PLUS_IO1 |
| * @arg @ref LL_COMP_INPUT_PLUS_DAC1_CH1 (1) |
| * |
| * (1) Parameter available only on COMP instance: COMP1. |
| * @retval None |
| */ |
| __STATIC_INLINE void LL_COMP_ConfigInputs(COMP_TypeDef *COMPx, uint32_t InputMinus, uint32_t InputPlus) |
| { |
| /* Note: Connection switch is applicable only to COMP instance COMP1, */ |
| /* therefore if COMP2 is selected the equivalent bit is */ |
| /* kept unmodified. */ |
| MODIFY_REG(COMP->CSR, |
| (COMP_CSR_COMP1INSEL | (COMP_CSR_COMP1SW1 * __COMP_IS_INSTANCE_ODD(COMPx))) << __COMP_BITOFFSET_INSTANCE(COMPx), |
| (InputMinus | InputPlus) << __COMP_BITOFFSET_INSTANCE(COMPx) ); |
| } |
| |
| /** |
| * @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 COMP1INSEL LL_COMP_SetInputPlus\n |
| * CSR COMP2INSEL 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_DAC1_CH1 (1) |
| * |
| * (1) Parameter available only on COMP instance: COMP1. |
| * @retval None |
| */ |
| __STATIC_INLINE void LL_COMP_SetInputPlus(COMP_TypeDef *COMPx, uint32_t InputPlus) |
| { |
| /* Note: Connection switch is applicable only to COMP instance COMP1, */ |
| /* therefore if COMP2 is selected the equivalent bit is */ |
| /* kept unmodified. */ |
| MODIFY_REG(COMP->CSR, |
| (COMP_CSR_COMP1SW1 * __COMP_IS_INSTANCE_ODD(COMPx)) << __COMP_BITOFFSET_INSTANCE(COMPx), |
| InputPlus << __COMP_BITOFFSET_INSTANCE(COMPx) ); |
| } |
| |
| /** |
| * @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 COMP1INSEL LL_COMP_GetInputPlus\n |
| * CSR COMP2INSEL 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_DAC1_CH1 (1) |
| * |
| * (1) Parameter available only on COMP instance: COMP1. |
| */ |
| __STATIC_INLINE uint32_t LL_COMP_GetInputPlus(COMP_TypeDef *COMPx) |
| { |
| /* Note: Connection switch is applicable only to COMP instance COMP1, */ |
| /* therefore is COMP2 is selected the returned value will be null. */ |
| return (uint32_t)(READ_BIT(COMP->CSR, |
| COMP_CSR_COMP1SW1 << __COMP_BITOFFSET_INSTANCE(COMPx)) |
| >> __COMP_BITOFFSET_INSTANCE(COMPx) |
| ); |
| } |
| |
| /** |
| * @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. |
| * @rmtoll CSR COMP1SW1 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 |
| * @retval None |
| */ |
| __STATIC_INLINE void LL_COMP_SetInputMinus(COMP_TypeDef *COMPx, uint32_t InputMinus) |
| { |
| MODIFY_REG(COMP->CSR, |
| COMP_CSR_COMP1INSEL << __COMP_BITOFFSET_INSTANCE(COMPx), |
| InputMinus << __COMP_BITOFFSET_INSTANCE(COMPx) ); |
| } |
| |
| /** |
| * @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 COMP1SW1 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 |
| */ |
| __STATIC_INLINE uint32_t LL_COMP_GetInputMinus(COMP_TypeDef *COMPx) |
| { |
| return (uint32_t)(READ_BIT(COMP->CSR, |
| COMP_CSR_COMP1INSEL << __COMP_BITOFFSET_INSTANCE(COMPx)) |
| >> __COMP_BITOFFSET_INSTANCE(COMPx) |
| ); |
| } |
| |
| /** |
| * @brief Set comparator instance hysteresis mode of the input minus (inverting input). |
| * @rmtoll CSR COMP1HYST LL_COMP_SetInputHysteresis\n |
| * COMP2HYST 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(COMP->CSR, |
| COMP_CSR_COMP1HYST << __COMP_BITOFFSET_INSTANCE(COMPx), |
| InputHysteresis << __COMP_BITOFFSET_INSTANCE(COMPx) ); |
| } |
| |
| /** |
| * @brief Get comparator instance hysteresis mode of the minus (inverting) input. |
| * @rmtoll CSR COMP1HYST LL_COMP_GetInputHysteresis\n |
| * COMP2HYST 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(COMP->CSR, |
| COMP_CSR_COMP1HYST << __COMP_BITOFFSET_INSTANCE(COMPx)) |
| >> __COMP_BITOFFSET_INSTANCE(COMPx) |
| ); |
| |
| } |
| |
| /** |
| * @} |
| */ |
| |
| /** @defgroup COMP_LL_EF_Configuration_comparator_output Configuration of comparator output |
| * @{ |
| */ |
| |
| /** |
| * @brief Set comparator output selection. |
| * @note Availability of parameters of output selection to timer |
| * depends on timers availability on the selected device. |
| * @rmtoll CSR COMP1OUTSEL LL_COMP_SetOutputSelection\n |
| * COMP2OUTSEL LL_COMP_SetOutputSelection |
| * @param COMPx Comparator instance |
| * @param OutputSelection This parameter can be one of the following values: |
| * @arg @ref LL_COMP_OUTPUT_NONE |
| * @arg @ref LL_COMP_OUTPUT_TIM1_BKIN (1) |
| * @arg @ref LL_COMP_OUTPUT_TIM1_IC1 (1) |
| * @arg @ref LL_COMP_OUTPUT_TIM1_OCCLR (1) |
| * @arg @ref LL_COMP_OUTPUT_TIM2_IC4 (1) |
| * @arg @ref LL_COMP_OUTPUT_TIM2_OCCLR (1) |
| * @arg @ref LL_COMP_OUTPUT_TIM3_IC1 (1) |
| * @arg @ref LL_COMP_OUTPUT_TIM3_OCCLR (1) |
| * |
| * (1) Parameter availability depending on timer availability |
| * on the selected device. |
| * @retval None |
| */ |
| __STATIC_INLINE void LL_COMP_SetOutputSelection(COMP_TypeDef *COMPx, uint32_t OutputSelection) |
| { |
| MODIFY_REG(COMP->CSR, |
| COMP_CSR_COMP1OUTSEL << __COMP_BITOFFSET_INSTANCE(COMPx), |
| OutputSelection << __COMP_BITOFFSET_INSTANCE(COMPx) ); |
| } |
| |
| /** |
| * @brief Get comparator output selection. |
| * @note Availability of parameters of output selection to timer |
| * depends on timers availability on the selected device. |
| * @rmtoll CSR COMP1OUTSEL LL_COMP_GetOutputSelection\n |
| * COMP2OUTSEL LL_COMP_GetOutputSelection |
| * @param COMPx Comparator instance |
| * @retval Returned value can be one of the following values: |
| * @arg @ref LL_COMP_OUTPUT_NONE |
| * @arg @ref LL_COMP_OUTPUT_TIM1_BKIN (1) |
| * @arg @ref LL_COMP_OUTPUT_TIM1_IC1 (1) |
| * @arg @ref LL_COMP_OUTPUT_TIM1_OCCLR (1) |
| * @arg @ref LL_COMP_OUTPUT_TIM2_IC4 (1) |
| * @arg @ref LL_COMP_OUTPUT_TIM2_OCCLR (1) |
| * @arg @ref LL_COMP_OUTPUT_TIM3_IC1 (1) |
| * @arg @ref LL_COMP_OUTPUT_TIM3_OCCLR (1) |
| * |
| * (1) Parameter availability depending on timer availability |
| * on the selected device. |
| */ |
| __STATIC_INLINE uint32_t LL_COMP_GetOutputSelection(COMP_TypeDef *COMPx) |
| { |
| return (uint32_t)(READ_BIT(COMP->CSR, |
| COMP_CSR_COMP1OUTSEL << __COMP_BITOFFSET_INSTANCE(COMPx)) |
| >> __COMP_BITOFFSET_INSTANCE(COMPx) |
| ); |
| } |
| |
| /** |
| * @brief Set comparator instance output polarity. |
| * @rmtoll CSR COMP1POL LL_COMP_SetOutputPolarity\n |
| * COMP2POL 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(COMP->CSR, |
| COMP_CSR_COMP1POL << __COMP_BITOFFSET_INSTANCE(COMPx), |
| OutputPolarity << __COMP_BITOFFSET_INSTANCE(COMPx) ); |
| } |
| |
| /** |
| * @brief Get comparator instance output polarity. |
| * @rmtoll CSR COMP1POL LL_COMP_GetOutputPolarity\n |
| * COMP2POL 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(COMP->CSR, |
| COMP_CSR_COMP1POL << __COMP_BITOFFSET_INSTANCE(COMPx)) |
| >> __COMP_BITOFFSET_INSTANCE(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 COMP1EN LL_COMP_Enable\n |
| * CSR COMP2EN LL_COMP_Enable |
| * @param COMPx Comparator instance |
| * @retval None |
| */ |
| __STATIC_INLINE void LL_COMP_Enable(COMP_TypeDef *COMPx) |
| { |
| SET_BIT(COMP->CSR, COMP_CSR_COMP1EN << __COMP_BITOFFSET_INSTANCE(COMPx)); |
| } |
| |
| /** |
| * @brief Disable comparator instance. |
| * @rmtoll CSR COMP1EN LL_COMP_Disable\n |
| * CSR COMP2EN LL_COMP_Disable |
| * @param COMPx Comparator instance |
| * @retval None |
| */ |
| __STATIC_INLINE void LL_COMP_Disable(COMP_TypeDef *COMPx) |
| { |
| CLEAR_BIT(COMP->CSR, COMP_CSR_COMP1EN << __COMP_BITOFFSET_INSTANCE(COMPx)); |
| } |
| |
| /** |
| * @brief Get comparator enable state |
| * (0: COMP is disabled, 1: COMP is enabled) |
| * @rmtoll CSR COMP1EN LL_COMP_IsEnabled\n |
| * 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(COMP->CSR, COMP_CSR_COMP1EN << __COMP_BITOFFSET_INSTANCE(COMPx)) == COMP_CSR_COMP1EN << __COMP_BITOFFSET_INSTANCE(COMPx)); |
| } |
| |
| /** |
| * @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 COMP1LOCK LL_COMP_Lock\n |
| * CSR COMP2LOCK LL_COMP_Lock |
| * @param COMPx Comparator instance |
| * @retval None |
| */ |
| __STATIC_INLINE void LL_COMP_Lock(COMP_TypeDef *COMPx) |
| { |
| SET_BIT(COMP->CSR, COMP_CSR_COMP1LOCK << __COMP_BITOFFSET_INSTANCE(COMPx)); |
| } |
| |
| /** |
| * @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 COMP1LOCK LL_COMP_IsLocked\n |
| * 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(COMP->CSR, COMP_CSR_COMP1LOCK << __COMP_BITOFFSET_INSTANCE(COMPx)) == COMP_CSR_COMP1LOCK << __COMP_BITOFFSET_INSTANCE(COMPx)); |
| } |
| |
| /** |
| * @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 COMP1OUT LL_COMP_ReadOutputLevel\n |
| * CSR COMP2OUT 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(COMP->CSR, |
| COMP_CSR_COMP1OUT << __COMP_BITOFFSET_INSTANCE(COMPx)) |
| >> (__COMP_BITOFFSET_INSTANCE(COMPx) + 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 /* __STM32F0xx_LL_COMP_H */ |
