109 lines
3.8 KiB
C
109 lines
3.8 KiB
C
/**************************************************************************//**
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* @file acmp.c
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* @version V3.00
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* $Revision: 1 $
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* $Date: 16/07/07 7:50p $
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* @brief Analog Comparator(ACMP) driver source file
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*
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* @note
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* @copyright (C) 2019 Nuvoton Technology Corp. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without modification,
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* are permitted provided that the following conditions are met:
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* 1. Redistributions of source code must retain the above copyright notice,
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* this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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* 3. Neither the name of Nuvoton Technology Corp. nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
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* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*****************************************************************************/
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#include "M261.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_FUNCTIONS ACMP Exported Functions
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@{
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*/
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/**
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* @brief Configure the specified ACMP module
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*
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* @param[in] acmp The pointer of the specified ACMP module
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* @param[in] u32ChNum Comparator number.
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* @param[in] u32NegSrc 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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* - \ref ACMP_CTL_NEGSEL_DAC
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* @param[in] u32HysSel The hysteresis function option. Including:
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* - \ref ACMP_CTL_HYSTERESIS_30MV
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* - \ref ACMP_CTL_HYSTERESIS_20MV
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* - \ref ACMP_CTL_HYSTERESIS_10MV
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* - \ref ACMP_CTL_HYSTERESIS_DISABLE
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*
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* @return None
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*
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* @details Configure hysteresis function, select the source of negative input and enable analog comparator.
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*/
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void ACMP_Open(ACMP_T *acmp, uint32_t u32ChNum, uint32_t u32NegSrc, uint32_t u32HysSel)
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{
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acmp->CTL[u32ChNum] = (acmp->CTL[u32ChNum] & (~(ACMP_CTL_NEGSEL_Msk | ACMP_CTL_HYSSEL_Msk))) | (u32NegSrc | u32HysSel | ACMP_CTL_ACMPEN_Msk);
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}
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/**
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* @brief Close analog comparator
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*
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* @param[in] acmp The pointer of the specified ACMP module
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* @param[in] u32ChNum Comparator number.
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*
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* @return None
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*
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* @details This function will clear ACMPEN bit of ACMP_CTL register to disable analog comparator.
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*/
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void ACMP_Close(ACMP_T *acmp, uint32_t u32ChNum)
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{
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acmp->CTL[u32ChNum] &= (~ACMP_CTL_ACMPEN_Msk);
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}
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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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/*** (C) COPYRIGHT 2019 Nuvoton Technology Corp. ***/
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