mbed library sources. Supersedes mbed-src.
Fork of mbed-dev by
Diff: targets/TARGET_NUVOTON/TARGET_M451/device/StdDriver/m451_acmp.c
- Revision:
- 149:156823d33999
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/targets/TARGET_NUVOTON/TARGET_M451/device/StdDriver/m451_acmp.c Fri Oct 28 11:17:30 2016 +0100 @@ -0,0 +1,84 @@ +/**************************************************************************//** + * @file acmp.c + * @version V3.00 + * $Revision: 4 $ + * $Date: 15/08/11 10:26a $ + * @brief M451 series Analog Comparator(ACMP) driver source file + * + * @note + * Copyright (C) 2014~2015 Nuvoton Technology Corp. All rights reserved. +*****************************************************************************/ + +#include "M451Series.h" + +#ifdef __cplusplus +extern "C" +{ +#endif + +/** @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] u32HysteresisEn The hysteresis function option. Including: + * - \ref ACMP_CTL_HYSTERESIS_ENABLE + * - \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 u32HysteresisEn) +{ + Acmp->CTL[u32ChNum] = (Acmp->CTL[u32ChNum] & (~(ACMP_CTL_NEGSEL_Msk | ACMP_CTL_HYSEN_Msk))) | (u32NegSrc | u32HysteresisEn | 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 */ + +#ifdef __cplusplus +} +#endif + +/*** (C) COPYRIGHT 2014~2015 Nuvoton Technology Corp. ***/ +