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/**************************************************************************//**
* @file acmp.c
* @version V1.00
* $Revision: 4 $
* $Date: 15/11/04 7:32p $
* @brief NUC472/NUC442 Analog Comparator(ACMP) driver source file
*
* @note
* Copyright (C) 2014 Nuvoton Technology Corp. All rights reserved.
*****************************************************************************/
#include "NUC472_442.h"
#ifdef __cplusplus
extern "C"
{
#endif
/** @addtogroup NUC472_442_Device_Driver NUC472/NUC442 Device Driver
@{
*/
/** @addtogroup NUC472_442_ACMP_Driver ACMP Driver
@{
*/
/** @addtogroup NUC472_442_ACMP_EXPORTED_FUNCTIONS ACMP Exported Functions
@{
*/
/**
* @brief Configure the specified ACMP module
*
* @param[in] acmp The base address of ACMP module
* @param[in] u32ChNum comparator number, could be 0, 1, 2
* @param[in] u32NegSrc is comparator negative input selection. Including:
* - \ref ACMP_VNEG_PIN
* - \ref ACMP_VNEG_BANDGAP
* - \ref ACMP_VNEG_4_OVER_24_VDD
* - \ref ACMP_VNEG_5_OVER_24_VDD
* - \ref ACMP_VNEG_6_OVER_24_VDD
* - \ref ACMP_VNEG_7_OVER_24_VDD
* - \ref ACMP_VNEG_8_OVER_24_VDD
* - \ref ACMP_VNEG_9_OVER_24_VDD
* - \ref ACMP_VNEG_10_OVER_24_VDD
* - \ref ACMP_VNEG_11_OVER_24_VDD
* - \ref ACMP_VNEG_12_OVER_24_VDD
* - \ref ACMP_VNEG_13_OVER_24_VDD
* - \ref ACMP_VNEG_14_OVER_24_VDD
* - \ref ACMP_VNEG_15_OVER_24_VDD
* - \ref ACMP_VNEG_16_OVER_24_VDD
* - \ref ACMP_VNEG_17_OVER_24_VDD
* - \ref ACMP_VNEG_18_OVER_24_VDD
* - \ref ACMP_VNEG_19_OVER_24_VDD
* - \ref ACMP_VNEG_4_OVER_24_IREF
* - \ref ACMP_VNEG_5_OVER_24_IREF
* - \ref ACMP_VNEG_6_OVER_24_IREF
* - \ref ACMP_VNEG_7_OVER_24_IREF
* - \ref ACMP_VNEG_8_OVER_24_IREF
* - \ref ACMP_VNEG_9_OVER_24_IREF
* - \ref ACMP_VNEG_10_OVER_24_IREF
* - \ref ACMP_VNEG_11_OVER_24_IREF
* - \ref ACMP_VNEG_12_OVER_24_IREF
* - \ref ACMP_VNEG_13_OVER_24_IREF
* - \ref ACMP_VNEG_14_OVER_24_IREF
* - \ref ACMP_VNEG_15_OVER_24_IREF
* - \ref ACMP_VNEG_16_OVER_24_IREF
* - \ref ACMP_VNEG_17_OVER_24_IREF
* - \ref ACMP_VNEG_18_OVER_24_IREF
* - \ref ACMP_VNEG_19_OVER_24_IREF
*
* @param[in] u32HysteresisEn is the hysteresis function option. Including:
* - \ref ACMP_HYSTERESIS_ENABLE
* - \ref ACMP_HYSTERESIS_DISABLE
* @return None
*/
void ACMP_Open(ACMP_T *acmp, uint32_t u32ChNum, uint32_t u32NegSrc, uint32_t u32HysteresisEn)
{
if((u32NegSrc != ACMP_VNEG_PIN) && (u32NegSrc != ACMP_VNEG_BANDGAP))
ACMP->VREF = u32NegSrc | ACMP_VREF_IREFSEL_Msk;
ACMP->CTL[u32ChNum] = (ACMP->CTL[u32ChNum] & (~(ACMP_CTL_NEGSEL_Msk | ACMP_CTL_HYSEN_Msk))) |
((u32NegSrc != ACMP_VNEG_PIN ? ACMP_CTL_NEGSEL_Msk : 0) | u32HysteresisEn | ACMP_CTL_ACMPEN_Msk);
}
/**
* @brief This function close comparator
*
* @param[in] acmp The base address of ACMP module
* @param[in] u32ChNum comparator number.
*
* @return None
*/
void ACMP_Close(ACMP_T *acmp, uint32_t u32ChNum)
{
ACMP->CTL[u32ChNum] &= (~ACMP_CTL_ACMPEN_Msk);
}
/*@}*/ /* end of group NUC472_442_ACMP_EXPORTED_FUNCTIONS */
/*@}*/ /* end of group NUC472_442_ACMP_Driver */
/*@}*/ /* end of group NUC472_442_Device_Driver */
#ifdef __cplusplus
}
#endif
/*** (C) COPYRIGHT 2014 Nuvoton Technology Corp. ***/
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