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/**
******************************************************************************
* @file stm32g4xx_ll_comp.c
* @author MCD Application Team
* @brief COMP LL module driver
******************************************************************************
* @attention
*
* <h2><center>&copy; Copyright (c) 2019 STMicroelectronics.
* All rights reserved.</center></h2>
*
* This software component is licensed by ST under BSD 3-Clause license,
* the "License"; You may not use this file except in compliance with the
* License. You may obtain a copy of the License at:
* opensource.org/licenses/BSD-3-Clause
*
******************************************************************************
*/
#if defined(USE_FULL_LL_DRIVER)
/* Includes ------------------------------------------------------------------*/
#include "stm32g4xx_ll_comp.h"
#ifdef USE_FULL_ASSERT
#include "stm32_assert.h"
#else
#define assert_param(expr) ((void)0U)
#endif
/** @addtogroup STM32G4xx_LL_Driver
* @{
*/
/** @addtogroup COMP_LL COMP
* @{
*/
/* Private types -------------------------------------------------------------*/
/* Private variables ---------------------------------------------------------*/
/* Private constants ---------------------------------------------------------*/
/* Private macros ------------------------------------------------------------*/
/** @addtogroup COMP_LL_Private_Macros
* @{
*/
/* Check of parameters for configuration of COMP hierarchical scope: */
/* COMP instance. */
/* Note: On this STM32 serie, comparator input plus parameters are */
/* the same on all COMP instances. */
/* However, comparator instance kept as macro parameter for */
/* compatibility with other STM32 families. */
#define IS_LL_COMP_INPUT_PLUS(__COMP_INSTANCE__, __INPUT_PLUS__) \
( ((__INPUT_PLUS__) == LL_COMP_INPUT_PLUS_IO1) \
|| ((__INPUT_PLUS__) == LL_COMP_INPUT_PLUS_IO2) \
)
#if defined(STM32G474xx) || defined(STM32G484xx) || defined(STM32G473xx) || defined(STM32G483xx)
#define IS_LL_COMP_INPUT_MINUS(__COMP_INSTANCE__, __INPUT_MINUS__) \
(((__INPUT_MINUS__) == LL_COMP_INPUT_MINUS_1_4VREFINT) || \
((__INPUT_MINUS__) == LL_COMP_INPUT_MINUS_1_2VREFINT) || \
((__INPUT_MINUS__) == LL_COMP_INPUT_MINUS_3_4VREFINT) || \
((__INPUT_MINUS__) == LL_COMP_INPUT_MINUS_VREFINT) || \
((__INPUT_MINUS__) == LL_COMP_INPUT_MINUS_IO1) || \
((__INPUT_MINUS__) == LL_COMP_INPUT_MINUS_IO2) || \
(((__COMP_INSTANCE__) == COMP1) && \
(((__INPUT_MINUS__) == LL_COMP_INPUT_MINUS_DAC1_CH1) || \
((__INPUT_MINUS__) == LL_COMP_INPUT_MINUS_DAC3_CH1)) \
) || \
(((__COMP_INSTANCE__) == COMP2) && \
(((__INPUT_MINUS__) == LL_COMP_INPUT_MINUS_DAC1_CH2) || \
((__INPUT_MINUS__) == LL_COMP_INPUT_MINUS_DAC3_CH2)) \
) || \
(((__COMP_INSTANCE__) == COMP3) && \
(((__INPUT_MINUS__) == LL_COMP_INPUT_MINUS_DAC1_CH1) || \
((__INPUT_MINUS__) == LL_COMP_INPUT_MINUS_DAC3_CH1)) \
) || \
(((__COMP_INSTANCE__) == COMP4) && \
(((__INPUT_MINUS__) == LL_COMP_INPUT_MINUS_DAC1_CH1) || \
((__INPUT_MINUS__) == LL_COMP_INPUT_MINUS_DAC3_CH2)) \
) || \
(((__COMP_INSTANCE__) == COMP5) && \
(((__INPUT_MINUS__) == LL_COMP_INPUT_MINUS_DAC1_CH2) || \
((__INPUT_MINUS__) == LL_COMP_INPUT_MINUS_DAC4_CH1)) \
) || \
(((__COMP_INSTANCE__) == COMP6) && \
(((__INPUT_MINUS__) == LL_COMP_INPUT_MINUS_DAC2_CH1) || \
((__INPUT_MINUS__) == LL_COMP_INPUT_MINUS_DAC4_CH2)) \
) || \
(((__COMP_INSTANCE__) == COMP7) && \
(((__INPUT_MINUS__) == LL_COMP_INPUT_MINUS_DAC2_CH1) || \
((__INPUT_MINUS__) == LL_COMP_INPUT_MINUS_DAC4_CH1)) \
))
#elif defined(STM32GBK1CB) || defined(STM32G431xx) || defined(STM32G441xx) || defined(STM32G471xx)
#define IS_LL_COMP_INPUT_MINUS(__COMP_INSTANCE__, __INPUT_MINUS__) \
(((__INPUT_MINUS__) == LL_COMP_INPUT_MINUS_1_4VREFINT) || \
((__INPUT_MINUS__) == LL_COMP_INPUT_MINUS_1_2VREFINT) || \
((__INPUT_MINUS__) == LL_COMP_INPUT_MINUS_3_4VREFINT) || \
((__INPUT_MINUS__) == LL_COMP_INPUT_MINUS_VREFINT) || \
((__INPUT_MINUS__) == LL_COMP_INPUT_MINUS_IO1) || \
((__INPUT_MINUS__) == LL_COMP_INPUT_MINUS_IO2) || \
(((__COMP_INSTANCE__) == COMP1) && \
(((__INPUT_MINUS__) == LL_COMP_INPUT_MINUS_DAC1_CH1) || \
((__INPUT_MINUS__) == LL_COMP_INPUT_MINUS_DAC3_CH1)) \
) || \
(((__COMP_INSTANCE__) == COMP2) && \
(((__INPUT_MINUS__) == LL_COMP_INPUT_MINUS_DAC1_CH2) || \
((__INPUT_MINUS__) == LL_COMP_INPUT_MINUS_DAC3_CH2)) \
) || \
(((__COMP_INSTANCE__) == COMP3) && \
(((__INPUT_MINUS__) == LL_COMP_INPUT_MINUS_DAC1_CH1) || \
((__INPUT_MINUS__) == LL_COMP_INPUT_MINUS_DAC3_CH1)) \
) || \
(((__COMP_INSTANCE__) == COMP4) && \
(((__INPUT_MINUS__) == LL_COMP_INPUT_MINUS_DAC1_CH1) || \
((__INPUT_MINUS__) == LL_COMP_INPUT_MINUS_DAC3_CH2)) \
))
#endif
#define IS_LL_COMP_INPUT_HYSTERESIS(__INPUT_HYSTERESIS__) \
( ((__INPUT_HYSTERESIS__) == LL_COMP_HYSTERESIS_NONE) \
|| ((__INPUT_HYSTERESIS__) == LL_COMP_HYSTERESIS_10MV) \
|| ((__INPUT_HYSTERESIS__) == LL_COMP_HYSTERESIS_20MV) \
|| ((__INPUT_HYSTERESIS__) == LL_COMP_HYSTERESIS_30MV) \
|| ((__INPUT_HYSTERESIS__) == LL_COMP_HYSTERESIS_40MV) \
|| ((__INPUT_HYSTERESIS__) == LL_COMP_HYSTERESIS_50MV) \
|| ((__INPUT_HYSTERESIS__) == LL_COMP_HYSTERESIS_60MV) \
|| ((__INPUT_HYSTERESIS__) == LL_COMP_HYSTERESIS_70MV) \
)
#define IS_LL_COMP_OUTPUT_POLARITY(__POLARITY__) \
( ((__POLARITY__) == LL_COMP_OUTPUTPOL_NONINVERTED) \
|| ((__POLARITY__) == LL_COMP_OUTPUTPOL_INVERTED) \
)
#if defined(STM32G474xx) || defined(STM32G484xx) || defined(STM32G473xx) || defined(STM32G483xx)
#define IS_LL_COMP_OUTPUT_BLANKING_SOURCE(__INSTANCE__, __OUTPUT_BLANKING_SOURCE__) \
((((__INSTANCE__) == COMP1) && \
(((__OUTPUT_BLANKING_SOURCE__) == LL_COMP_BLANKINGSRC_NONE) || \
((__OUTPUT_BLANKING_SOURCE__) == LL_COMP_BLANKINGSRC_TIM1_OC5_COMP1) || \
((__OUTPUT_BLANKING_SOURCE__) == LL_COMP_BLANKINGSRC_TIM2_OC3_COMP1) || \
((__OUTPUT_BLANKING_SOURCE__) == LL_COMP_BLANKINGSRC_TIM3_OC3_COMP1) || \
((__OUTPUT_BLANKING_SOURCE__) == LL_COMP_BLANKINGSRC_TIM8_OC5_COMP1))) \
|| \
(((__INSTANCE__) == COMP2) && \
(((__OUTPUT_BLANKING_SOURCE__) == LL_COMP_BLANKINGSRC_NONE) || \
((__OUTPUT_BLANKING_SOURCE__) == LL_COMP_BLANKINGSRC_TIM1_OC5_COMP2) || \
((__OUTPUT_BLANKING_SOURCE__) == LL_COMP_BLANKINGSRC_TIM2_OC3_COMP2) || \
((__OUTPUT_BLANKING_SOURCE__) == LL_COMP_BLANKINGSRC_TIM3_OC3_COMP2) || \
((__OUTPUT_BLANKING_SOURCE__) == LL_COMP_BLANKINGSRC_TIM8_OC5_COMP2))) \
|| \
(((__INSTANCE__) == COMP3) && \
(((__OUTPUT_BLANKING_SOURCE__) == LL_COMP_BLANKINGSRC_NONE) || \
((__OUTPUT_BLANKING_SOURCE__) == LL_COMP_BLANKINGSRC_TIM1_OC5_COMP3) || \
((__OUTPUT_BLANKING_SOURCE__) == LL_COMP_BLANKINGSRC_TIM2_OC4_COMP3) || \
((__OUTPUT_BLANKING_SOURCE__) == LL_COMP_BLANKINGSRC_TIM3_OC3_COMP3) || \
((__OUTPUT_BLANKING_SOURCE__) == LL_COMP_BLANKINGSRC_TIM8_OC5_COMP3))) \
|| \
(((__INSTANCE__) == COMP4) && \
(((__OUTPUT_BLANKING_SOURCE__) == LL_COMP_BLANKINGSRC_NONE) || \
((__OUTPUT_BLANKING_SOURCE__) == LL_COMP_BLANKINGSRC_TIM1_OC5_COMP4) || \
((__OUTPUT_BLANKING_SOURCE__) == LL_COMP_BLANKINGSRC_TIM3_OC4_COMP4) || \
((__OUTPUT_BLANKING_SOURCE__) == LL_COMP_BLANKINGSRC_TIM8_OC5_COMP4) || \
((__OUTPUT_BLANKING_SOURCE__) == LL_COMP_BLANKINGSRC_TIM15_OC1_COMP4))) \
|| \
(((__INSTANCE__) == COMP5) && \
(((__OUTPUT_BLANKING_SOURCE__) == LL_COMP_BLANKINGSRC_NONE) || \
((__OUTPUT_BLANKING_SOURCE__) == LL_COMP_BLANKINGSRC_TIM1_OC5_COMP5) || \
((__OUTPUT_BLANKING_SOURCE__) == LL_COMP_BLANKINGSRC_TIM2_OC3_COMP5) || \
((__OUTPUT_BLANKING_SOURCE__) == LL_COMP_BLANKINGSRC_TIM3_OC3_COMP5) || \
((__OUTPUT_BLANKING_SOURCE__) == LL_COMP_BLANKINGSRC_TIM8_OC5_COMP5))) \
|| \
(((__INSTANCE__) == COMP6) && \
(((__OUTPUT_BLANKING_SOURCE__) == LL_COMP_BLANKINGSRC_NONE) || \
((__OUTPUT_BLANKING_SOURCE__) == LL_COMP_BLANKINGSRC_TIM1_OC5_COMP6) || \
((__OUTPUT_BLANKING_SOURCE__) == LL_COMP_BLANKINGSRC_TIM2_OC4_COMP6) || \
((__OUTPUT_BLANKING_SOURCE__) == LL_COMP_BLANKINGSRC_TIM8_OC5_COMP6) || \
((__OUTPUT_BLANKING_SOURCE__) == LL_COMP_BLANKINGSRC_TIM15_OC2_COMP6))) \
|| \
(((__INSTANCE__) == COMP7) && \
(((__OUTPUT_BLANKING_SOURCE__) == LL_COMP_BLANKINGSRC_NONE) || \
((__OUTPUT_BLANKING_SOURCE__) == LL_COMP_BLANKINGSRC_TIM1_OC5_COMP7) || \
((__OUTPUT_BLANKING_SOURCE__) == LL_COMP_BLANKINGSRC_TIM3_OC3_COMP7) || \
((__OUTPUT_BLANKING_SOURCE__) == LL_COMP_BLANKINGSRC_TIM8_OC5_COMP7) || \
((__OUTPUT_BLANKING_SOURCE__) == LL_COMP_BLANKINGSRC_TIM15_OC2_COMP7))) \
|| ((__OUTPUT_BLANKING_SOURCE__) == LL_COMP_BLANKINGSRC_TIM20_OC5) \
|| ((__OUTPUT_BLANKING_SOURCE__) == LL_COMP_BLANKINGSRC_TIM15_OC1) \
|| ((__OUTPUT_BLANKING_SOURCE__) == LL_COMP_BLANKINGSRC_TIM4_OC3) \
)
#elif defined(STM32GBK1CB) || defined(STM32G431xx) || defined(STM32G441xx) || defined(STM32G471xx)
#define IS_LL_COMP_OUTPUT_BLANKING_SOURCE(__INSTANCE__, __OUTPUT_BLANKING_SOURCE__) \
((((__INSTANCE__) == COMP1) && \
(((__OUTPUT_BLANKING_SOURCE__) == LL_COMP_BLANKINGSRC_NONE) || \
((__OUTPUT_BLANKING_SOURCE__) == LL_COMP_BLANKINGSRC_TIM1_OC5_COMP1) || \
((__OUTPUT_BLANKING_SOURCE__) == LL_COMP_BLANKINGSRC_TIM2_OC3_COMP1) || \
((__OUTPUT_BLANKING_SOURCE__) == LL_COMP_BLANKINGSRC_TIM3_OC3_COMP1) || \
((__OUTPUT_BLANKING_SOURCE__) == LL_COMP_BLANKINGSRC_TIM8_OC5_COMP1))) \
|| \
(((__INSTANCE__) == COMP2) && \
(((__OUTPUT_BLANKING_SOURCE__) == LL_COMP_BLANKINGSRC_NONE) || \
((__OUTPUT_BLANKING_SOURCE__) == LL_COMP_BLANKINGSRC_TIM1_OC5_COMP2) || \
((__OUTPUT_BLANKING_SOURCE__) == LL_COMP_BLANKINGSRC_TIM2_OC3_COMP2) || \
((__OUTPUT_BLANKING_SOURCE__) == LL_COMP_BLANKINGSRC_TIM3_OC3_COMP2) || \
((__OUTPUT_BLANKING_SOURCE__) == LL_COMP_BLANKINGSRC_TIM8_OC5_COMP2))) \
|| \
(((__INSTANCE__) == COMP3) && \
(((__OUTPUT_BLANKING_SOURCE__) == LL_COMP_BLANKINGSRC_NONE) || \
((__OUTPUT_BLANKING_SOURCE__) == LL_COMP_BLANKINGSRC_TIM1_OC5_COMP3) || \
((__OUTPUT_BLANKING_SOURCE__) == LL_COMP_BLANKINGSRC_TIM2_OC4_COMP3) || \
((__OUTPUT_BLANKING_SOURCE__) == LL_COMP_BLANKINGSRC_TIM3_OC3_COMP3) || \
((__OUTPUT_BLANKING_SOURCE__) == LL_COMP_BLANKINGSRC_TIM8_OC5_COMP3))) \
|| \
(((__INSTANCE__) == COMP4) && \
(((__OUTPUT_BLANKING_SOURCE__) == LL_COMP_BLANKINGSRC_NONE) || \
((__OUTPUT_BLANKING_SOURCE__) == LL_COMP_BLANKINGSRC_TIM1_OC5_COMP4) || \
((__OUTPUT_BLANKING_SOURCE__) == LL_COMP_BLANKINGSRC_TIM3_OC4_COMP4) || \
((__OUTPUT_BLANKING_SOURCE__) == LL_COMP_BLANKINGSRC_TIM8_OC5_COMP4) || \
((__OUTPUT_BLANKING_SOURCE__) == LL_COMP_BLANKINGSRC_TIM15_OC1_COMP4))) \
|| ((__OUTPUT_BLANKING_SOURCE__) == LL_COMP_BLANKINGSRC_TIM15_OC1) \
|| ((__OUTPUT_BLANKING_SOURCE__) == LL_COMP_BLANKINGSRC_TIM4_OC3) \
)
#endif
/**
* @}
*/
/* Private function prototypes -----------------------------------------------*/
/* Exported functions --------------------------------------------------------*/
/** @addtogroup COMP_LL_Exported_Functions
* @{
*/
/** @addtogroup COMP_LL_EF_Init
* @{
*/
/**
* @brief De-initialize registers of the selected COMP instance
* to their default reset values.
* @note If comparator is locked, de-initialization by software is
* not possible.
* The only way to unlock the comparator is a device hardware reset.
* @param COMPx COMP instance
* @retval An ErrorStatus enumeration value:
* - SUCCESS: COMP registers are de-initialized
* - ERROR: COMP registers are not de-initialized
*/
ErrorStatus LL_COMP_DeInit(COMP_TypeDef *COMPx)
{
ErrorStatus status = SUCCESS;
/* Check the parameters */
assert_param(IS_COMP_ALL_INSTANCE(COMPx));
/* Note: Hardware constraint (refer to description of this function): */
/* COMP instance must not be locked. */
if (LL_COMP_IsLocked(COMPx) == 0UL)
{
LL_COMP_WriteReg(COMPx, CSR, 0x00000000UL);
}
else
{
/* Comparator instance is locked: de-initialization by software is */
/* not possible. */
/* The only way to unlock the comparator is a device hardware reset. */
status = ERROR;
}
return status;
}
/**
* @brief Initialize some features of COMP instance.
* @note This function configures features of the selected COMP instance.
* Some features are also available at scope COMP common instance
* (common to several COMP instances).
* Refer to functions having argument "COMPxy_COMMON" as parameter.
* @param COMPx COMP instance
* @param COMP_InitStruct Pointer to a @ref LL_COMP_InitTypeDef structure
* @retval An ErrorStatus enumeration value:
* - SUCCESS: COMP registers are initialized
* - ERROR: COMP registers are not initialized
*/
ErrorStatus LL_COMP_Init(COMP_TypeDef *COMPx, LL_COMP_InitTypeDef *COMP_InitStruct)
{
ErrorStatus status = SUCCESS;
/* Check the parameters */
assert_param(IS_COMP_ALL_INSTANCE(COMPx));
assert_param(IS_LL_COMP_INPUT_PLUS(COMPx, COMP_InitStruct->InputPlus));
assert_param(IS_LL_COMP_INPUT_MINUS(COMPx, COMP_InitStruct->InputMinus));
assert_param(IS_LL_COMP_INPUT_HYSTERESIS(COMP_InitStruct->InputHysteresis));
assert_param(IS_LL_COMP_OUTPUT_POLARITY(COMP_InitStruct->OutputPolarity));
assert_param(IS_LL_COMP_OUTPUT_BLANKING_SOURCE(COMPx, COMP_InitStruct->OutputBlankingSource));
/* Note: Hardware constraint (refer to description of this function) */
/* COMP instance must not be locked. */
if (LL_COMP_IsLocked(COMPx) == 0UL)
{
/* Configuration of comparator instance : */
/* - InputPlus */
/* - InputMinus */
/* - InputHysteresis */
/* - OutputPolarity */
/* - OutputBlankingSource */
MODIFY_REG(COMPx->CSR,
COMP_CSR_INPSEL
| COMP_CSR_SCALEN
| COMP_CSR_BRGEN
| COMP_CSR_INMSEL
| COMP_CSR_HYST
| COMP_CSR_POLARITY
| COMP_CSR_BLANKING
,
COMP_InitStruct->InputPlus
| COMP_InitStruct->InputMinus
| COMP_InitStruct->InputHysteresis
| COMP_InitStruct->OutputPolarity
| COMP_InitStruct->OutputBlankingSource
);
}
else
{
/* Initialization error: COMP instance is locked. */
status = ERROR;
}
return status;
}
/**
* @brief Set each @ref LL_COMP_InitTypeDef field to default value.
* @param COMP_InitStruct Pointer to a @ref LL_COMP_InitTypeDef structure
* whose fields will be set to default values.
* @retval None
*/
void LL_COMP_StructInit(LL_COMP_InitTypeDef *COMP_InitStruct)
{
/* Set COMP_InitStruct fields to default values */
COMP_InitStruct->InputPlus = LL_COMP_INPUT_PLUS_IO1;
COMP_InitStruct->InputMinus = LL_COMP_INPUT_MINUS_VREFINT;
COMP_InitStruct->InputHysteresis = LL_COMP_HYSTERESIS_NONE;
COMP_InitStruct->OutputPolarity = LL_COMP_OUTPUTPOL_NONINVERTED;
COMP_InitStruct->OutputBlankingSource = LL_COMP_BLANKINGSRC_NONE;
}
/**
* @}
*/
/**
* @}
*/
/**
* @}
*/
/**
* @}
*/
#endif /* USE_FULL_LL_DRIVER */
/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/