/**************************************************************************//** * @file nu_acmp.h * @version V3.00 * @brief ACMP Driver Header File * * @copyright SPDX-License-Identifier: Apache-2.0 * @copyright Copyright (C) 2020 Nuvoton Technology Corp. All rights reserved. ******************************************************************************/ #ifndef __NU_ACMP_H__ #define __NU_ACMP_H__ #ifdef __cplusplus extern "C" { #endif /** @addtogroup Standard_Driver Standard Driver @{ */ /** @addtogroup ACMP_Driver ACMP Driver @{ */ /** @addtogroup ACMP_EXPORTED_CONSTANTS ACMP Exported Constants @{ */ /*---------------------------------------------------------------------------------------------------------*/ /* ACMP_CTL constant definitions */ /*---------------------------------------------------------------------------------------------------------*/ #define ACMP_CTL_FILTSEL_OFF (0UL << 13) /*!< ACMP_CTL setting for filter function disabled. */ #define ACMP_CTL_FILTSEL_1PCLK (1UL << 13) /*!< ACMP_CTL setting for 1 PCLK filter count. */ #define ACMP_CTL_FILTSEL_2PCLK (2UL << 13) /*!< ACMP_CTL setting for 2 PCLK filter count. */ #define ACMP_CTL_FILTSEL_4PCLK (3UL << 13) /*!< ACMP_CTL setting for 4 PCLK filter count. */ #define ACMP_CTL_FILTSEL_8PCLK (4UL << 13) /*!< ACMP_CTL setting for 8 PCLK filter count. */ #define ACMP_CTL_FILTSEL_16PCLK (5UL << 13) /*!< ACMP_CTL setting for 16 PCLK filter count. */ #define ACMP_CTL_FILTSEL_32PCLK (6UL << 13) /*!< ACMP_CTL setting for 32 PCLK filter count. */ #define ACMP_CTL_FILTSEL_64PCLK (7UL << 13) /*!< ACMP_CTL setting for 64 PCLK filter count. */ #define ACMP_CTL_INTPOL_RF (0UL << 8) /*!< ACMP_CTL setting for selecting rising edge and falling edge as interrupt condition. */ #define ACMP_CTL_INTPOL_R (1UL << 8) /*!< ACMP_CTL setting for selecting rising edge as interrupt condition. */ #define ACMP_CTL_INTPOL_F (2UL << 8) /*!< ACMP_CTL setting for selecting falling edge as interrupt condition. */ #define ACMP_CTL_POSSEL_P0 (0UL << 6) /*!< ACMP_CTL setting for selecting ACMPx_P0 pin as the source of ACMP V+. */ #define ACMP_CTL_POSSEL_P1 (1UL << 6) /*!< ACMP_CTL setting for selecting ACMPx_P1 pin as the source of ACMP V+. */ #define ACMP_CTL_POSSEL_P2 (2UL << 6) /*!< ACMP_CTL setting for selecting ACMPx_P2 pin as the source of ACMP V+. */ #define ACMP_CTL_POSSEL_P3 (3UL << 6) /*!< ACMP_CTL setting for selecting ACMPx_P3 pin as the source of ACMP V+. */ #define ACMP_CTL_NEGSEL_PIN (0UL << 4) /*!< ACMP_CTL setting for selecting the voltage of ACMP negative input pin as the source of ACMP V-. */ #define ACMP_CTL_NEGSEL_CRV (1UL << 4) /*!< ACMP_CTL setting for selecting internal comparator reference voltage as the source of ACMP V-. */ #define ACMP_CTL_NEGSEL_VBG (2UL << 4) /*!< ACMP_CTL setting for selecting internal Band-gap voltage as the source of ACMP V-. */ #define ACMP_CTL_NEGSEL_DAC (3UL << 4) /*!< ACMP_CTL setting for selecting DAC output voltage as the source of ACMP V-. */ #define ACMP_CTL_HYSTERESIS_30MV (3UL << 24) /*!< ACMP_CTL setting for enabling the hysteresis function at 30mV. */ #define ACMP_CTL_HYSTERESIS_20MV (2UL << 24) /*!< ACMP_CTL setting for enabling the hysteresis function at 20mV. */ #define ACMP_CTL_HYSTERESIS_10MV (1UL << 24) /*!< ACMP_CTL setting for enabling the hysteresis function at 10mV. */ #define ACMP_CTL_HYSTERESIS_DISABLE (0UL << 2) /*!< ACMP_CTL setting for disabling the hysteresis function. */ /*---------------------------------------------------------------------------------------------------------*/ /* ACMP_VREF constant definitions */ /*---------------------------------------------------------------------------------------------------------*/ #define ACMP_VREF_CRVSSEL_VDDA (0UL << 6) /*!< ACMP_VREF setting for selecting analog supply voltage VDDA as the CRV source voltage */ #define ACMP_VREF_CRVSSEL_INTVREF (1UL << 6) /*!< ACMP_VREF setting for selecting internal reference voltage as the CRV source voltage */ /**@}*/ /* end of group ACMP_EXPORTED_CONSTANTS */ /** @addtogroup ACMP_EXPORTED_FUNCTIONS ACMP Exported Functions @{ */ /*---------------------------------------------------------------------------------------------------------*/ /* Define Macros and functions */ /*---------------------------------------------------------------------------------------------------------*/ /** * @brief This macro is used to enable output inverse function * @param[in] acmp The pointer of the specified ACMP module * @param[in] u32ChNum The ACMP number * @return None * @details This macro will set ACMPOINV bit of ACMP_CTL register to enable output inverse function. */ #define ACMP_ENABLE_OUTPUT_INVERSE(acmp, u32ChNum) ((acmp)->CTL[(u32ChNum)] |= ACMP_CTL_ACMPOINV_Msk) /** * @brief This macro is used to disable output inverse function * @param[in] acmp The pointer of the specified ACMP module * @param[in] u32ChNum The ACMP number * @return None * @details This macro will clear ACMPOINV bit of ACMP_CTL register to disable output inverse function. */ #define ACMP_DISABLE_OUTPUT_INVERSE(acmp, u32ChNum) ((acmp)->CTL[(u32ChNum)] &= ~ACMP_CTL_ACMPOINV_Msk) /** * @brief This macro is used to select ACMP negative input source * @param[in] acmp The pointer of the specified ACMP module * @param[in] u32ChNum The ACMP number * @param[in] u32Src is comparator negative input selection. Including: * - \ref ACMP_CTL_NEGSEL_PIN * - \ref ACMP_CTL_NEGSEL_CRV * - \ref ACMP_CTL_NEGSEL_VBG * - \ref ACMP_CTL_NEGSEL_DAC * @return None * @details This macro will set NEGSEL (ACMP_CTL[5:4]) to determine the source of negative input. */ #define ACMP_SET_NEG_SRC(acmp, u32ChNum, u32Src) ((acmp)->CTL[(u32ChNum)] = ((acmp)->CTL[(u32ChNum)] & ~ACMP_CTL_NEGSEL_Msk) | (u32Src)) /** * @brief This macro is used to enable hysteresis function * @param[in] acmp The pointer of the specified ACMP module * @param[in] u32ChNum The ACMP number * @return None */ #define ACMP_ENABLE_HYSTERESIS(acmp, u32ChNum) ((acmp)->CTL[(u32ChNum)] |= ACMP_CTL_HYSTERESIS_30MV) /** * @brief This macro is used to disable hysteresis function * @param[in] acmp The pointer of the specified ACMP module * @param[in] u32ChNum The ACMP number * @return None * @details This macro will set HYSSEL of ACMP_CTL register to disable hysteresis function. */ #define ACMP_DISABLE_HYSTERESIS(acmp, u32ChNum) ((acmp)->CTL[(u32ChNum)] &= ~ACMP_CTL_HYSSEL_Msk) /** * @brief This macro is used to select hysteresis level * @param[in] acmp The pointer of the specified ACMP module * @param[in] u32ChNum The ACMP number * @param[in] u32HysSel The hysteresis function option. Including: * - \ref ACMP_CTL_HYSTERESIS_30MV * - \ref ACMP_CTL_HYSTERESIS_20MV * - \ref ACMP_CTL_HYSTERESIS_10MV * - \ref ACMP_CTL_HYSTERESIS_DISABLE * @return None */ #define ACMP_CONFIG_HYSTERESIS(acmp, u32ChNum, u32HysSel) ((acmp)->CTL[(u32ChNum)] = ((acmp)->CTL[(u32ChNum)] & ~ACMP_CTL_HYSSEL_Msk) | (u32HysSel)) /** * @brief This macro is used to enable interrupt * @param[in] acmp The pointer of the specified ACMP module * @param[in] u32ChNum The ACMP number * @return None * @details This macro will set ACMPIE bit of ACMP_CTL register to enable interrupt function. * If wake-up function is enabled, the wake-up interrupt will be enabled as well. */ #define ACMP_ENABLE_INT(acmp, u32ChNum) ((acmp)->CTL[(u32ChNum)] |= ACMP_CTL_ACMPIE_Msk) /** * @brief This macro is used to disable interrupt * @param[in] acmp The pointer of the specified ACMP module * @param[in] u32ChNum The ACMP number * @return None * @details This macro will clear ACMPIE bit of ACMP_CTL register to disable interrupt function. */ #define ACMP_DISABLE_INT(acmp, u32ChNum) ((acmp)->CTL[(u32ChNum)] &= ~ACMP_CTL_ACMPIE_Msk) /** * @brief This macro is used to enable ACMP * @param[in] acmp The pointer of the specified ACMP module * @param[in] u32ChNum The ACMP number * @return None * @details This macro will set ACMPEN bit of ACMP_CTL register to enable analog comparator. */ #define ACMP_ENABLE(acmp, u32ChNum) ((acmp)->CTL[(u32ChNum)] |= ACMP_CTL_ACMPEN_Msk) /** * @brief This macro is used to disable ACMP * @param[in] acmp The pointer of the specified ACMP module * @param[in] u32ChNum The ACMP number * @return None * @details This macro will clear ACMPEN bit of ACMP_CTL register to disable analog comparator. */ #define ACMP_DISABLE(acmp, u32ChNum) ((acmp)->CTL[(u32ChNum)] &= ~ACMP_CTL_ACMPEN_Msk) /** * @brief This macro is used to get ACMP output value * @param[in] acmp The pointer of the specified ACMP module * @param[in] u32ChNum The ACMP number * @return ACMP output value * @details This macro will return the ACMP output value. */ #define ACMP_GET_OUTPUT(acmp, u32ChNum) (((acmp)->STATUS & (ACMP_STATUS_ACMPO0_Msk<<((u32ChNum))))?1:0) /** * @brief This macro is used to get ACMP interrupt flag * @param[in] acmp The pointer of the specified ACMP module * @param[in] u32ChNum The ACMP number * @return ACMP interrupt occurred (1) or not (0) * @details This macro will return the ACMP interrupt flag. */ #define ACMP_GET_INT_FLAG(acmp, u32ChNum) (((acmp)->STATUS & (ACMP_STATUS_ACMPIF0_Msk<<((u32ChNum))))?1:0) /** * @brief This macro is used to clear ACMP interrupt flag * @param[in] acmp The pointer of the specified ACMP module * @param[in] u32ChNum The ACMP number * @return None * @details This macro will write 1 to ACMPIFn bit of ACMP_STATUS register to clear interrupt flag. */ #define ACMP_CLR_INT_FLAG(acmp, u32ChNum) ((acmp)->STATUS = (ACMP_STATUS_ACMPIF0_Msk<<((u32ChNum)))) /** * @brief This macro is used to clear ACMP wake-up interrupt flag * @param[in] acmp The pointer of the specified ACMP module * @param[in] u32ChNum The ACMP number * @return None * @details This macro will write 1 to WKIFn bit of ACMP_STATUS register to clear interrupt flag. */ #define ACMP_CLR_WAKEUP_INT_FLAG(acmp, u32ChNum) ((acmp)->STATUS = (ACMP_STATUS_WKIF0_Msk<<((u32ChNum)))) /** * @brief This macro is used to enable ACMP wake-up function * @param[in] acmp The pointer of the specified ACMP module * @param[in] u32ChNum The ACMP number * @return None * @details This macro will set WKEN (ACMP_CTL[16]) to enable ACMP wake-up function. */ #define ACMP_ENABLE_WAKEUP(acmp, u32ChNum) ((acmp)->CTL[(u32ChNum)] |= ACMP_CTL_WKEN_Msk) /** * @brief This macro is used to disable ACMP wake-up function * @param[in] acmp The pointer of the specified ACMP module * @param[in] u32ChNum The ACMP number * @return None * @details This macro will clear WKEN (ACMP_CTL[16]) to disable ACMP wake-up function. */ #define ACMP_DISABLE_WAKEUP(acmp, u32ChNum) ((acmp)->CTL[(u32ChNum)] &= ~ACMP_CTL_WKEN_Msk) /** * @brief This macro is used to select ACMP positive input pin * @param[in] acmp The pointer of the specified ACMP module * @param[in] u32ChNum The ACMP number * @param[in] u32Pin Comparator positive pin selection. Including: * - \ref ACMP_CTL_POSSEL_P0 * - \ref ACMP_CTL_POSSEL_P1 * - \ref ACMP_CTL_POSSEL_P2 * - \ref ACMP_CTL_POSSEL_P3 * @return None * @details This macro will set POSSEL (ACMP_CTL[7:6]) to determine the comparator positive input pin. */ #define ACMP_SELECT_P(acmp, u32ChNum, u32Pin) ((acmp)->CTL[(u32ChNum)] = ((acmp)->CTL[(u32ChNum)] & ~ACMP_CTL_POSSEL_Msk) | (u32Pin)) /** * @brief This macro is used to enable ACMP filter function * @param[in] acmp The pointer of the specified ACMP module * @param[in] u32ChNum The ACMP number * @return None * @details This macro will set OUTSEL (ACMP_CTL[12]) to enable output filter function. */ #define ACMP_ENABLE_FILTER(acmp, u32ChNum) ((acmp)->CTL[(u32ChNum)] |= ACMP_CTL_OUTSEL_Msk) /** * @brief This macro is used to disable ACMP filter function * @param[in] acmp The pointer of the specified ACMP module * @param[in] u32ChNum The ACMP number * @return None * @details This macro will clear OUTSEL (ACMP_CTL[12]) to disable output filter function. */ #define ACMP_DISABLE_FILTER(acmp, u32ChNum) ((acmp)->CTL[(u32ChNum)] &= ~ACMP_CTL_OUTSEL_Msk) /** * @brief This macro is used to set ACMP filter function * @param[in] acmp The pointer of the specified ACMP module * @param[in] u32ChNum The ACMP number * @param[in] u32Cnt is comparator filter count setting. * - \ref ACMP_CTL_FILTSEL_OFF * - \ref ACMP_CTL_FILTSEL_1PCLK * - \ref ACMP_CTL_FILTSEL_2PCLK * - \ref ACMP_CTL_FILTSEL_4PCLK * - \ref ACMP_CTL_FILTSEL_8PCLK * - \ref ACMP_CTL_FILTSEL_16PCLK * - \ref ACMP_CTL_FILTSEL_32PCLK * - \ref ACMP_CTL_FILTSEL_64PCLK * @return None * @details When ACMP output filter function is enabled, the output sampling count is determined by FILTSEL (ACMP_CTL[15:13]). */ #define ACMP_SET_FILTER(acmp, u32ChNum, u32Cnt) ((acmp)->CTL[(u32ChNum)] = ((acmp)->CTL[(u32ChNum)] & ~ACMP_CTL_FILTSEL_Msk) | (u32Cnt)) /** * @brief This macro is used to select comparator reference voltage * @param[in] acmp The pointer of the specified ACMP module * @param[in] u32Level The comparator reference voltage setting. * The formula is: * comparator reference voltage = CRV source voltage x (1/6 + u32Level/24) * The range of u32Level is 0 ~ 15. * @return None * @details When CRV is selected as ACMP negative input source, the CRV level is determined by CRVCTL (ACMP_VREF[3:0]). */ #define ACMP_CRV_SEL(acmp, u32Level) ((acmp)->VREF = ((acmp)->VREF & ~ACMP_VREF_CRVCTL_Msk) | ((u32Level)<VREF = ((acmp)->VREF & ~ACMP_VREF_CRVSSEL_Msk) | (u32Src)) /** * @brief This macro is used to select ACMP interrupt condition * @param[in] acmp The pointer of the specified ACMP module * @param[in] u32ChNum The ACMP number * @param[in] u32Cond Comparator interrupt condition selection. Including: * - \ref ACMP_CTL_INTPOL_RF * - \ref ACMP_CTL_INTPOL_R * - \ref ACMP_CTL_INTPOL_F * @return None * @details The ACMP output interrupt condition can be rising edge, falling edge or any edge. */ #define ACMP_SELECT_INT_COND(acmp, u32ChNum, u32Cond) ((acmp)->CTL[(u32ChNum)] = ((acmp)->CTL[(u32ChNum)] & ~ACMP_CTL_INTPOL_Msk) | (u32Cond)) /** * @brief This macro is used to enable ACMP window latch mode * @param[in] acmp The pointer of the specified ACMP module * @param[in] u32ChNum The ACMP number * @return None * @details This macro will set WLATEN (ACMP_CTL[17]) to enable ACMP window latch mode. * When ACMP0/1_WLAT pin is at high level, ACMPO0/1 passes through window latch * block; when ACMP0/1_WLAT pin is at low level, the output of window latch block, * WLATOUT, is frozen. */ #define ACMP_ENABLE_WINDOW_LATCH(acmp, u32ChNum) ((acmp)->CTL[(u32ChNum)] |= ACMP_CTL_WLATEN_Msk) /** * @brief This macro is used to disable ACMP window latch mode * @param[in] acmp The pointer of the specified ACMP module * @param[in] u32ChNum The ACMP number * @return None * @details This macro will clear WLATEN (ACMP_CTL[17]) to disable ACMP window latch mode. */ #define ACMP_DISABLE_WINDOW_LATCH(acmp, u32ChNum) ((acmp)->CTL[(u32ChNum)] &= ~ACMP_CTL_WLATEN_Msk) /** * @brief This macro is used to enable ACMP window compare mode * @param[in] acmp The pointer of the specified ACMP module * @param[in] u32ChNum The ACMP number * @return None * @details This macro will set WCMPSEL (ACMP_CTL[18]) to enable ACMP window compare mode. * When window compare mode is enabled, user can connect the specific analog voltage * source to either the positive inputs of both comparators or the negative inputs of * both comparators. The upper bound and lower bound of the designated range are * determined by the voltages applied to the other inputs of both comparators. If the * output of a comparator is low and the other comparator outputs high, which means two * comparators implies the upper and lower bound. User can directly monitor a specific * analog voltage source via ACMPWO (ACMP_STATUS[16]). */ #define ACMP_ENABLE_WINDOW_COMPARE(acmp, u32ChNum) ((acmp)->CTL[(u32ChNum)] |= ACMP_CTL_WCMPSEL_Msk) /** * @brief This macro is used to disable ACMP window compare mode * @param[in] acmp The pointer of the specified ACMP module * @param[in] u32ChNum The ACMP number * @return None * @details This macro will clear WCMPSEL (ACMP_CTL[18]) to disable ACMP window compare mode. */ #define ACMP_DISABLE_WINDOW_COMPARE(acmp, u32ChNum) ((acmp)->CTL[(u32ChNum)] &= ~ACMP_CTL_WCMPSEL_Msk) /* Function prototype declaration */ void ACMP_Open(ACMP_T *acmp, uint32_t u32ChNum, uint32_t u32NegSrc, uint32_t u32HysSel); void ACMP_Close(ACMP_T *acmp, uint32_t u32ChNum); /**@}*/ /* end of group ACMP_EXPORTED_FUNCTIONS */ /**@}*/ /* end of group ACMP_Driver */ /**@}*/ /* end of group Standard_Driver */ #ifdef __cplusplus } #endif #endif /* __NU_ACMP_H__ */