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/**************************************************************************//**
* @file acmp.c
* @version V1.00
* @brief M480 series Analog Comparator(ACMP) driver source file
*
* SPDX-License-Identifier: Apache-2.0
* @copyright (C) 2016-2020 Nuvoton Technology Corp. All rights reserved.
*****************************************************************************/
#include "NuMicro.h"
/** @addtogroup Standard_Driver Standard Driver
@{
*/
/** @addtogroup ACMP_Driver ACMP Driver
@{
*/
/** @addtogroup ACMP_EXPORTED_FUNCTIONS ACMP Exported Functions
@{
*/
/**
* @brief Configure the specified ACMP module
*
* @param[in] acmp The pointer of the specified ACMP module
* @param[in] u32ChNum Comparator number.
* @param[in] u32NegSrc 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
* @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
*
* @details Configure hysteresis function, select the source of negative input and enable analog comparator.
*/
void ACMP_Open(ACMP_T *acmp, uint32_t u32ChNum, uint32_t u32NegSrc, uint32_t u32HysSel)
{
acmp->CTL[u32ChNum] = (acmp->CTL[u32ChNum] & (~(ACMP_CTL_NEGSEL_Msk | ACMP_CTL_HYSSEL_Msk))) | (u32NegSrc | u32HysSel | ACMP_CTL_ACMPEN_Msk);
}
/**
* @brief Close analog comparator
*
* @param[in] acmp The pointer of the specified ACMP module
* @param[in] u32ChNum Comparator number.
*
* @return None
*
* @details This function will clear ACMPEN bit of ACMP_CTL register to disable analog comparator.
*/
void ACMP_Close(ACMP_T *acmp, uint32_t u32ChNum)
{
acmp->CTL[u32ChNum] &= (~ACMP_CTL_ACMPEN_Msk);
}
/*@}*/ /* end of group ACMP_EXPORTED_FUNCTIONS */
/*@}*/ /* end of group ACMP_Driver */
/*@}*/ /* end of group Standard_Driver */
/*** (C) COPYRIGHT 2016 Nuvoton Technology Corp. ***/
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