1 /**************************************************************************//**
2 * @file acmp.c
3 * @version V1.00
4 * @brief M480 series Analog Comparator(ACMP) driver source file
5 *
6 * SPDX-License-Identifier: Apache-2.0
7 * @copyright (C) 2016-2020 Nuvoton Technology Corp. All rights reserved.
8 *****************************************************************************/
9 #include "NuMicro.h"
10
11
12 /** @addtogroup Standard_Driver Standard Driver
13 @{
14 */
15
16 /** @addtogroup ACMP_Driver ACMP Driver
17 @{
18 */
19
20
21 /** @addtogroup ACMP_EXPORTED_FUNCTIONS ACMP Exported Functions
22 @{
23 */
24
25
26 /**
27 * @brief Configure the specified ACMP module
28 *
29 * @param[in] acmp The pointer of the specified ACMP module
30 * @param[in] u32ChNum Comparator number.
31 * @param[in] u32NegSrc Comparator negative input selection. Including:
32 * - \ref ACMP_CTL_NEGSEL_PIN
33 * - \ref ACMP_CTL_NEGSEL_CRV
34 * - \ref ACMP_CTL_NEGSEL_VBG
35 * - \ref ACMP_CTL_NEGSEL_DAC
36 * @param[in] u32HysSel The hysteresis function option. Including:
37 * - \ref ACMP_CTL_HYSTERESIS_30MV
38 * - \ref ACMP_CTL_HYSTERESIS_20MV
39 * - \ref ACMP_CTL_HYSTERESIS_10MV
40 * - \ref ACMP_CTL_HYSTERESIS_DISABLE
41 *
42 * @return None
43 *
44 * @details Configure hysteresis function, select the source of negative input and enable analog comparator.
45 */
ACMP_Open(ACMP_T * acmp,uint32_t u32ChNum,uint32_t u32NegSrc,uint32_t u32HysSel)46 void ACMP_Open(ACMP_T *acmp, uint32_t u32ChNum, uint32_t u32NegSrc, uint32_t u32HysSel)
47 {
48 acmp->CTL[u32ChNum] = (acmp->CTL[u32ChNum] & (~(ACMP_CTL_NEGSEL_Msk | ACMP_CTL_HYSSEL_Msk))) | (u32NegSrc | u32HysSel | ACMP_CTL_ACMPEN_Msk);
49 }
50
51 /**
52 * @brief Close analog comparator
53 *
54 * @param[in] acmp The pointer of the specified ACMP module
55 * @param[in] u32ChNum Comparator number.
56 *
57 * @return None
58 *
59 * @details This function will clear ACMPEN bit of ACMP_CTL register to disable analog comparator.
60 */
ACMP_Close(ACMP_T * acmp,uint32_t u32ChNum)61 void ACMP_Close(ACMP_T *acmp, uint32_t u32ChNum)
62 {
63 acmp->CTL[u32ChNum] &= (~ACMP_CTL_ACMPEN_Msk);
64 }
65
66
67
68 /*@}*/ /* end of group ACMP_EXPORTED_FUNCTIONS */
69
70 /*@}*/ /* end of group ACMP_Driver */
71
72 /*@}*/ /* end of group Standard_Driver */
73
74 /*** (C) COPYRIGHT 2016 Nuvoton Technology Corp. ***/
75
76
