402 lines
19 KiB
C
402 lines
19 KiB
C
/**************************************************************************//**
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* @file nu_acmp.h
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* @version V0.10
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* $Revision: 2 $
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* $Date: 18/12/21 10:53a $
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* @brief M031 Series ACMP Driver Header File
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*
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* @note
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* SPDX-License-Identifier: Apache-2.0
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* Copyright (C) 2018 Nuvoton Technology Corp. All rights reserved.
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*****************************************************************************/
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#ifndef __NU_ACMP_H__
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#define __NU_ACMP_H__
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/*---------------------------------------------------------------------------------------------------------*/
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/* Include related headers */
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/*---------------------------------------------------------------------------------------------------------*/
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#include "M031Series.h"
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#ifdef __cplusplus
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extern "C"
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{
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#endif
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/** @addtogroup Standard_Driver Standard Driver
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@{
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*/
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/** @addtogroup ACMP_Driver ACMP Driver
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@{
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*/
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/** @addtogroup ACMP_EXPORTED_CONSTANTS ACMP Exported Constants
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@{
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*/
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/*---------------------------------------------------------------------------------------------------------*/
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/* ACMP_CTL constant definitions */
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/*---------------------------------------------------------------------------------------------------------*/
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#define ACMP_CTL_FILTSEL_OFF (0UL << ACMP_CTL_FILTSEL_Pos) /*!< ACMP_CTL setting for filter function disabled. \hideinitializer */
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#define ACMP_CTL_FILTSEL_1PCLK (1UL << ACMP_CTL_FILTSEL_Pos) /*!< ACMP_CTL setting for 1 PCLK filter count. \hideinitializer */
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#define ACMP_CTL_FILTSEL_2PCLK (2UL << ACMP_CTL_FILTSEL_Pos) /*!< ACMP_CTL setting for 2 PCLK filter count. \hideinitializer */
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#define ACMP_CTL_FILTSEL_4PCLK (3UL << ACMP_CTL_FILTSEL_Pos) /*!< ACMP_CTL setting for 4 PCLK filter count. \hideinitializer */
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#define ACMP_CTL_FILTSEL_8PCLK (4UL << ACMP_CTL_FILTSEL_Pos) /*!< ACMP_CTL setting for 8 PCLK filter count. \hideinitializer */
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#define ACMP_CTL_FILTSEL_16PCLK (5UL << ACMP_CTL_FILTSEL_Pos) /*!< ACMP_CTL setting for 16 PCLK filter count. \hideinitializer */
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#define ACMP_CTL_FILTSEL_32PCLK (6UL << ACMP_CTL_FILTSEL_Pos) /*!< ACMP_CTL setting for 32 PCLK filter count. \hideinitializer */
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#define ACMP_CTL_FILTSEL_64PCLK (7UL << ACMP_CTL_FILTSEL_Pos) /*!< ACMP_CTL setting for 64 PCLK filter count. \hideinitializer */
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#define ACMP_CTL_INTPOL_RF (0UL << ACMP_CTL_INTPOL_Pos) /*!< ACMP_CTL setting for selecting rising edge and falling edge as interrupt condition. \hideinitializer */
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#define ACMP_CTL_INTPOL_R (1UL << ACMP_CTL_INTPOL_Pos) /*!< ACMP_CTL setting for selecting rising edge as interrupt condition. \hideinitializer */
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#define ACMP_CTL_INTPOL_F (2UL << ACMP_CTL_INTPOL_Pos) /*!< ACMP_CTL setting for selecting falling edge as interrupt condition. \hideinitializer */
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#define ACMP_CTL_POSSEL_P0 (0UL << ACMP_CTL_POSSEL_Pos) /*!< ACMP_CTL setting for selecting ACMPx_P0 pin as the source of ACMP V+. \hideinitializer */
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#define ACMP_CTL_POSSEL_P1 (1UL << ACMP_CTL_POSSEL_Pos) /*!< ACMP_CTL setting for selecting ACMPx_P1 pin as the source of ACMP V+. \hideinitializer */
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#define ACMP_CTL_POSSEL_P2 (2UL << ACMP_CTL_POSSEL_Pos) /*!< ACMP_CTL setting for selecting ACMPx_P2 pin as the source of ACMP V+. \hideinitializer */
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#define ACMP_CTL_POSSEL_P3 (3UL << ACMP_CTL_POSSEL_Pos) /*!< ACMP_CTL setting for selecting ACMPx_P3 pin as the source of ACMP V+. \hideinitializer */
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#define ACMP_CTL_NEGSEL_PIN (0UL << ACMP_CTL_NEGSEL_Pos) /*!< ACMP_CTL setting for selecting the voltage of ACMP negative input pin as the source of ACMP V-. \hideinitializer */
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#define ACMP_CTL_NEGSEL_CRV (1UL << ACMP_CTL_NEGSEL_Pos) /*!< ACMP_CTL setting for selecting internal comparator reference voltage as the source of ACMP V-. \hideinitializer */
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#define ACMP_CTL_NEGSEL_VBG (2UL << ACMP_CTL_NEGSEL_Pos) /*!< ACMP_CTL setting for selecting internal Band-gap voltage as the source of ACMP V-. \hideinitializer */
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#define ACMP_CTL_HYSTERESIS_ENABLE (1UL << ACMP_CTL_HYSEN_Pos) /*!< ACMP_CTL setting for enabling the hysteresis function. \hideinitializer */
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#define ACMP_CTL_HYSTERESIS_DISABLE (0UL << ACMP_CTL_HYSEN_Pos) /*!< ACMP_CTL setting for disabling the hysteresis function. \hideinitializer */
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/*---------------------------------------------------------------------------------------------------------*/
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/* ACMP_VREF constant definitions */
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/*---------------------------------------------------------------------------------------------------------*/
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#define ACMP_VREF_CRVSSEL_VDDA (0UL << ACMP_VREF_CRVSSEL_Pos) /*!< ACMP_VREF setting for selecting analog supply voltage VDDA as the CRV source voltage \hideinitializer */
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#define ACMP_VREF_CRVSSEL_INTVREF (1UL << ACMP_VREF_CRVSSEL_Pos) /*!< ACMP_VREF setting for selecting internal reference voltage as the CRV source voltage \hideinitializer */
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/*@}*/ /* end of group ACMP_EXPORTED_CONSTANTS */
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/** @addtogroup ACMP_EXPORTED_FUNCTIONS ACMP Exported Functions
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@{
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*/
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/*---------------------------------------------------------------------------------------------------------*/
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/* Define Macros and functions */
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/*---------------------------------------------------------------------------------------------------------*/
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/**
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* @brief This macro is used to enable output inverse function
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* @param[in] acmp The pointer of the specified ACMP module
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* @param[in] u32ChNum The ACMP number
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* @return None
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* @details This macro will set ACMPOINV bit of ACMP_CTL register to enable output inverse function.
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* \hideinitializer
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*/
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#define ACMP_ENABLE_OUTPUT_INVERSE(acmp, u32ChNum) ((acmp)->CTL[(u32ChNum)] |= ACMP_CTL_ACMPOINV_Msk)
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/**
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* @brief This macro is used to disable output inverse function
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* @param[in] acmp The pointer of the specified ACMP module
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* @param[in] u32ChNum The ACMP number
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* @return None
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* @details This macro will clear ACMPOINV bit of ACMP_CTL register to disable output inverse function.
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* \hideinitializer
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*/
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#define ACMP_DISABLE_OUTPUT_INVERSE(acmp, u32ChNum) ((acmp)->CTL[(u32ChNum)] &= ~ACMP_CTL_ACMPOINV_Msk)
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/**
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* @brief This macro is used to select ACMP negative input source
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* @param[in] acmp The pointer of the specified ACMP module
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* @param[in] u32ChNum The ACMP number
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* @param[in] u32Src is comparator negative input selection. Including:
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* - \ref ACMP_CTL_NEGSEL_PIN
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* - \ref ACMP_CTL_NEGSEL_CRV
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* - \ref ACMP_CTL_NEGSEL_VBG
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* @return None
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* @details This macro will set NEGSEL (ACMP_CTL[5:4]) to determine the source of negative input.
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* \hideinitializer
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*/
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#define ACMP_SET_NEG_SRC(acmp, u32ChNum, u32Src) ((acmp)->CTL[(u32ChNum)] = ((acmp)->CTL[(u32ChNum)] & ~ACMP_CTL_NEGSEL_Msk) | (u32Src))
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/**
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* @brief This macro is used to enable hysteresis function
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* @param[in] acmp The pointer of the specified ACMP module
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* @param[in] u32ChNum The ACMP number
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* @return None
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* @details This macro will set HYSEN bit of ACMP_CTL register to enable hysteresis function.
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* \hideinitializer
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*/
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#define ACMP_ENABLE_HYSTERESIS(acmp, u32ChNum) ((acmp)->CTL[(u32ChNum)] |= ACMP_CTL_HYSEN_Msk)
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/**
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* @brief This macro is used to disable hysteresis function
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* @param[in] acmp The pointer of the specified ACMP module
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* @param[in] u32ChNum The ACMP number
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* @return None
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* @details This macro will clear HYSEN bit of ACMP_CTL register to disable hysteresis function.
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* \hideinitializer
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*/
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#define ACMP_DISABLE_HYSTERESIS(acmp, u32ChNum) ((acmp)->CTL[(u32ChNum)] &= ~ACMP_CTL_HYSEN_Msk)
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/**
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* @brief This macro is used to enable interrupt
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* @param[in] acmp The pointer of the specified ACMP module
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* @param[in] u32ChNum The ACMP number
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* @return None
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* @details This macro will set ACMPIE bit of ACMP_CTL register to enable interrupt function.
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* If wake-up function is enabled, the wake-up interrupt will be enabled as well.
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* \hideinitializer
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*/
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#define ACMP_ENABLE_INT(acmp, u32ChNum) ((acmp)->CTL[(u32ChNum)] |= ACMP_CTL_ACMPIE_Msk)
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/**
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* @brief This macro is used to disable interrupt
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* @param[in] acmp The pointer of the specified ACMP module
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* @param[in] u32ChNum The ACMP number
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* @return None
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* @details This macro will clear ACMPIE bit of ACMP_CTL register to disable interrupt function.
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* \hideinitializer
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*/
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#define ACMP_DISABLE_INT(acmp, u32ChNum) ((acmp)->CTL[(u32ChNum)] &= ~ACMP_CTL_ACMPIE_Msk)
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/**
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* @brief This macro is used to enable ACMP
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* @param[in] acmp The pointer of the specified ACMP module
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* @param[in] u32ChNum The ACMP number
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* @return None
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* @details This macro will set ACMPEN bit of ACMP_CTL register to enable analog comparator.
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* \hideinitializer
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*/
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#define ACMP_ENABLE(acmp, u32ChNum) ((acmp)->CTL[(u32ChNum)] |= ACMP_CTL_ACMPEN_Msk)
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/**
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* @brief This macro is used to disable ACMP
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* @param[in] acmp The pointer of the specified ACMP module
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* @param[in] u32ChNum The ACMP number
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* @return None
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* @details This macro will clear ACMPEN bit of ACMP_CTL register to disable analog comparator.
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* \hideinitializer
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*/
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#define ACMP_DISABLE(acmp, u32ChNum) ((acmp)->CTL[(u32ChNum)] &= ~ACMP_CTL_ACMPEN_Msk)
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/**
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* @brief This macro is used to get ACMP output value
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* @param[in] acmp The pointer of the specified ACMP module
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* @param[in] u32ChNum The ACMP number
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* @return ACMP output value
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* @details This macro will return the ACMP output value.
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* \hideinitializer
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*/
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#define ACMP_GET_OUTPUT(acmp, u32ChNum) (((acmp)->STATUS & (ACMP_STATUS_ACMPO0_Msk<<((u32ChNum))))?1:0)
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/**
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* @brief This macro is used to get ACMP interrupt flag
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* @param[in] acmp The pointer of the specified ACMP module
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* @param[in] u32ChNum The ACMP number
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* @return ACMP interrupt occurred (1) or not (0)
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* @details This macro will return the ACMP interrupt flag.
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* \hideinitializer
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*/
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#define ACMP_GET_INT_FLAG(acmp, u32ChNum) (((acmp)->STATUS & (ACMP_STATUS_ACMPIF0_Msk<<((u32ChNum))))?1:0)
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/**
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* @brief This macro is used to clear ACMP interrupt flag
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* @param[in] acmp The pointer of the specified ACMP module
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* @param[in] u32ChNum The ACMP number
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* @return None
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* @details This macro will write 1 to ACMPIFn bit of ACMP_STATUS register to clear interrupt flag.
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* \hideinitializer
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*/
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#define ACMP_CLR_INT_FLAG(acmp, u32ChNum) ((acmp)->STATUS = (ACMP_STATUS_ACMPIF0_Msk<<((u32ChNum))))
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/**
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* @brief This macro is used to clear ACMP wake-up interrupt flag
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* @param[in] acmp The pointer of the specified ACMP module
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* @param[in] u32ChNum The ACMP number
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* @return None
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* @details This macro will write 1 to WKIFn bit of ACMP_STATUS register to clear interrupt flag.
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* \hideinitializer
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*/
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#define ACMP_CLR_WAKEUP_INT_FLAG(acmp, u32ChNum) ((acmp)->STATUS = (ACMP_STATUS_WKIF0_Msk<<((u32ChNum))))
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/**
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* @brief This macro is used to enable ACMP wake-up function
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* @param[in] acmp The pointer of the specified ACMP module
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* @param[in] u32ChNum The ACMP number
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* @return None
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* @details This macro will set WKEN (ACMP_CTL[16]) to enable ACMP wake-up function.
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* \hideinitializer
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*/
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#define ACMP_ENABLE_WAKEUP(acmp, u32ChNum) ((acmp)->CTL[(u32ChNum)] |= ACMP_CTL_WKEN_Msk)
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/**
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* @brief This macro is used to disable ACMP wake-up function
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* @param[in] acmp The pointer of the specified ACMP module
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* @param[in] u32ChNum The ACMP number
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* @return None
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* @details This macro will clear WKEN (ACMP_CTL[16]) to disable ACMP wake-up function.
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* \hideinitializer
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*/
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#define ACMP_DISABLE_WAKEUP(acmp, u32ChNum) ((acmp)->CTL[(u32ChNum)] &= ~ACMP_CTL_WKEN_Msk)
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/**
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* @brief This macro is used to select ACMP positive input pin
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* @param[in] acmp The pointer of the specified ACMP module
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* @param[in] u32ChNum The ACMP number
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* @param[in] u32Pin Comparator positive pin selection. Including:
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* - \ref ACMP_CTL_POSSEL_P0
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* - \ref ACMP_CTL_POSSEL_P1
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* - \ref ACMP_CTL_POSSEL_P2
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* - \ref ACMP_CTL_POSSEL_P3
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* @return None
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* @details This macro will set POSSEL (ACMP_CTL[7:6]) to determine the comparator positive input pin.
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* \hideinitializer
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*/
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#define ACMP_SELECT_P(acmp, u32ChNum, u32Pin) ((acmp)->CTL[(u32ChNum)] = ((acmp)->CTL[(u32ChNum)] & ~ACMP_CTL_POSSEL_Msk) | (u32Pin))
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/**
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* @brief This macro is used to enable ACMP filter function
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* @param[in] acmp The pointer of the specified ACMP module
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* @param[in] u32ChNum The ACMP number
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* @return None
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* @details This macro will set OUTSEL (ACMP_CTL[12]) to enable output filter function.
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* \hideinitializer
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*/
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#define ACMP_ENABLE_FILTER(acmp, u32ChNum) ((acmp)->CTL[(u32ChNum)] |= ACMP_CTL_OUTSEL_Msk)
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/**
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* @brief This macro is used to disable ACMP filter function
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* @param[in] acmp The pointer of the specified ACMP module
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* @param[in] u32ChNum The ACMP number
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* @return None
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* @details This macro will clear OUTSEL (ACMP_CTL[12]) to disable output filter function.
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* \hideinitializer
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*/
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#define ACMP_DISABLE_FILTER(acmp, u32ChNum) ((acmp)->CTL[(u32ChNum)] &= ~ACMP_CTL_OUTSEL_Msk)
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/**
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* @brief This macro is used to set ACMP filter function
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* @param[in] acmp The pointer of the specified ACMP module
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* @param[in] u32ChNum The ACMP number
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* @param[in] u32Cnt is comparator filter count setting.
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* - \ref ACMP_CTL_FILTSEL_OFF
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* - \ref ACMP_CTL_FILTSEL_1PCLK
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* - \ref ACMP_CTL_FILTSEL_2PCLK
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* - \ref ACMP_CTL_FILTSEL_4PCLK
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* - \ref ACMP_CTL_FILTSEL_8PCLK
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* - \ref ACMP_CTL_FILTSEL_16PCLK
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* - \ref ACMP_CTL_FILTSEL_32PCLK
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* - \ref ACMP_CTL_FILTSEL_64PCLK
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* @return None
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* @details When ACMP output filter function is enabled, the output sampling count is determined by FILTSEL (ACMP_CTL[15:13]).
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* \hideinitializer
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*/
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#define ACMP_SET_FILTER(acmp, u32ChNum, u32Cnt) ((acmp)->CTL[(u32ChNum)] = ((acmp)->CTL[(u32ChNum)] & ~ACMP_CTL_FILTSEL_Msk) | (u32Cnt))
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/**
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* @brief This macro is used to select comparator reference voltage
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* @param[in] acmp The pointer of the specified ACMP module
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* @param[in] u32Level The comparator reference voltage setting.
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* The formula is:
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* comparator reference voltage = CRV source voltage x (1/6 + u32Level/24)
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* The range of u32Level is 0 ~ 15.
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* @return None
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* @details When CRV is selected as ACMP negative input source, the CRV level is determined by CRVCTL (ACMP_VREF[3:0]).
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* \hideinitializer
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*/
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#define ACMP_CRV_SEL(acmp, u32Level) ((acmp)->VREF = ((acmp)->VREF & ~ACMP_VREF_CRVCTL_Msk) | ((u32Level)<<ACMP_VREF_CRVCTL_Pos))
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/**
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* @brief This macro is used to select the source of CRV
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* @param[in] acmp The pointer of the specified ACMP module
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* @param[in] u32Src is the source of CRV. Including:
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* - \ref ACMP_VREF_CRVSSEL_VDDA
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* - \ref ACMP_VREF_CRVSSEL_INTVREF
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* @return None
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* @details The source of CRV can be VDDA or internal reference voltage. The internal reference voltage level is determined by SYS_VREFCTL register.
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* \hideinitializer
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*/
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#define ACMP_SELECT_CRV_SRC(acmp, u32Src) ((acmp)->VREF = ((acmp)->VREF & ~ACMP_VREF_CRVSSEL_Msk) | (u32Src))
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/**
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* @brief This macro is used to select ACMP interrupt condition
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* @param[in] acmp The pointer of the specified ACMP module
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* @param[in] u32ChNum The ACMP number
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* @param[in] u32Cond Comparator interrupt condition selection. Including:
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* - \ref ACMP_CTL_INTPOL_RF
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* - \ref ACMP_CTL_INTPOL_R
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* - \ref ACMP_CTL_INTPOL_F
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* @return None
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* @details The ACMP output interrupt condition can be rising edge, falling edge or any edge.
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* \hideinitializer
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*/
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#define ACMP_SELECT_INT_COND(acmp, u32ChNum, u32Cond) ((acmp)->CTL[(u32ChNum)] = ((acmp)->CTL[(u32ChNum)] & ~ACMP_CTL_INTPOL_Msk) | (u32Cond))
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/**
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* @brief This macro is used to enable ACMP window latch mode
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* @param[in] acmp The pointer of the specified ACMP module
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* @param[in] u32ChNum The ACMP number
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* @return None
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* @details This macro will set WLATEN (ACMP_CTL[17]) to enable ACMP window latch mode.
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* When ACMP0/1_WLAT pin is at high level, ACMPO0/1 passes through window latch
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* block; when ACMP0/1_WLAT pin is at low level, the output of window latch block,
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* WLATOUT, is frozen.
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* \hideinitializer
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*/
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#define ACMP_ENABLE_WINDOW_LATCH(acmp, u32ChNum) ((acmp)->CTL[(u32ChNum)] |= ACMP_CTL_WLATEN_Msk)
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/**
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* @brief This macro is used to disable ACMP window latch mode
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* @param[in] acmp The pointer of the specified ACMP module
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* @param[in] u32ChNum The ACMP number
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* @return None
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* @details This macro will clear WLATEN (ACMP_CTL[17]) to disable ACMP window latch mode.
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* \hideinitializer
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*/
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#define ACMP_DISABLE_WINDOW_LATCH(acmp, u32ChNum) ((acmp)->CTL[(u32ChNum)] &= ~ACMP_CTL_WLATEN_Msk)
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/**
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* @brief This macro is used to enable ACMP window compare mode
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* @param[in] acmp The pointer of the specified ACMP module
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* @param[in] u32ChNum The ACMP number
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* @return None
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* @details This macro will set WCMPSEL (ACMP_CTL[18]) to enable ACMP window compare mode.
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* When window compare mode is enabled, user can connect the specific analog voltage
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* source to either the positive inputs of both comparators or the negative inputs of
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* both comparators. The upper bound and lower bound of the designated range are
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* determined by the voltages applied to the other inputs of both comparators. If the
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* output of a comparator is low and the other comparator outputs high, which means two
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* comparators implies the upper and lower bound. User can directly monitor a specific
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* analog voltage source via ACMPWO (ACMP_STATUS[16]).
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* \hideinitializer
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*/
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#define ACMP_ENABLE_WINDOW_COMPARE(acmp, u32ChNum) ((acmp)->CTL[(u32ChNum)] |= ACMP_CTL_WCMPSEL_Msk)
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/**
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* @brief This macro is used to disable ACMP window compare mode
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* @param[in] acmp The pointer of the specified ACMP module
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* @param[in] u32ChNum The ACMP number
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* @return None
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* @details This macro will clear WCMPSEL (ACMP_CTL[18]) to disable ACMP window compare mode.
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* \hideinitializer
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*/
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#define ACMP_DISABLE_WINDOW_COMPARE(acmp, u32ChNum) ((acmp)->CTL[(u32ChNum)] &= ~ACMP_CTL_WCMPSEL_Msk)
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/* Function prototype declaration */
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void ACMP_Open(ACMP_T *, uint32_t u32ChNum, uint32_t u32NegSrc, uint32_t u32HysteresisEn);
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void ACMP_Close(ACMP_T *, uint32_t u32ChNum);
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/*@}*/ /* end of group ACMP_EXPORTED_FUNCTIONS */
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/*@}*/ /* end of group ACMP_Driver */
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/*@}*/ /* end of group Standard_Driver */
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#ifdef __cplusplus
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}
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#endif
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#endif //__NU_ACMP_H__
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/*** (C) COPYRIGHT 2018 Nuvoton Technology Corp. ***/
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