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85 lines
2.2 KiB
C
85 lines
2.2 KiB
C
/**************************************************************************//**
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* @file acmp.c
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* @version V3.00
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* $Revision: 4 $
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* $Date: 15/08/11 10:26a $
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* @brief M451 series Analog Comparator(ACMP) driver source file
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*
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* @note
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* Copyright (C) 2014~2015 Nuvoton Technology Corp. All rights reserved.
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*****************************************************************************/
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#include "M451Series.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] u32HysteresisEn The hysteresis function option. Including:
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* - \ref ACMP_CTL_HYSTERESIS_ENABLE
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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 u32HysteresisEn)
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{
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Acmp->CTL[u32ChNum] = (Acmp->CTL[u32ChNum] & (~(ACMP_CTL_NEGSEL_Msk | ACMP_CTL_HYSEN_Msk))) | (u32NegSrc | u32HysteresisEn | 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 2014~2015 Nuvoton Technology Corp. ***/
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