96 lines
2.8 KiB
C
96 lines
2.8 KiB
C
/********************************** (C) COPYRIGHT *******************************
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* File Name : ch32v20x_rtc.h
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* Author : WCH
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* Version : V1.0.0
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* Date : 2021/06/06
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* Description : This file contains all the functions prototypes for the RTC
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* firmware library.
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* Copyright (c) 2021 Nanjing Qinheng Microelectronics Co., Ltd.
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* SPDX-License-Identifier: Apache-2.0
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*******************************************************************************/
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#ifndef __CH32V20x_RTC_H
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#define __CH32V20x_RTC_H
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#ifdef __cplusplus
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extern "C" {
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#endif
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#include "ch32v20x.h"
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typedef enum
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{
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Level_32 = 2,
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Level_64,
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Level_128,
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} Cali_LevelTypeDef;
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/* RTC_interrupts_define */
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#define RTC_IT_OW ((uint16_t)0x0004) /* Overflow interrupt */
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#define RTC_IT_ALR ((uint16_t)0x0002) /* Alarm interrupt */
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#define RTC_IT_SEC ((uint16_t)0x0001) /* Second interrupt */
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/* RTC_interrupts_flags */
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#define RTC_FLAG_RTOFF ((uint16_t)0x0020) /* RTC Operation OFF flag */
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#define RTC_FLAG_RSF ((uint16_t)0x0008) /* Registers Synchronized flag */
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#define RTC_FLAG_OW ((uint16_t)0x0004) /* Overflow flag */
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#define RTC_FLAG_ALR ((uint16_t)0x0002) /* Alarm flag */
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#define RTC_FLAG_SEC ((uint16_t)0x0001) /* Second flag */
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#if defined(CH32V20x_D8) || defined(CH32V20x_D8W)
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#define RB_OSC32K_HTUNE (0x1FE0)
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#define RB_OSC32K_LTUNE (0x1F)
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#define RB_OSC_CAL_HALT (0x80)
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#define RB_OSC_CAL_EN (0x02)
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#define RB_OSC_CAL_INT_EN (0x01)
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#define RB_OSC_CAL_OV_CNT (0xFF)
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#define RB_OSC_CAL_IF_END (1 << 15)
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#define RB_OSC_CAL_CNT_OV (1 << 14)
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#define RB_OSC_CAL_CNT (0x3FFF)
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#define RB_CAL_LP_EN (1 << 6)
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#define RB_CAL_WKUP_EN (1 << 5)
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#define RB_OSC_HALT_MD (1 << 4)
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#define RB_OSC_CNT_VLU (0x0F)
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#ifdef CLK_OSC32K
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#if ( CLK_OSC32K == 1 )
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#define CAB_LSIFQ 32000
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#else
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#define CAB_LSIFQ 32768
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#endif
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#else
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#define CAB_LSIFQ 32000
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#endif
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#endif
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void RTC_ITConfig(uint16_t RTC_IT, FunctionalState NewState);
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void RTC_EnterConfigMode(void);
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void RTC_ExitConfigMode(void);
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uint32_t RTC_GetCounter(void);
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void RTC_SetCounter(uint32_t CounterValue);
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void RTC_SetPrescaler(uint32_t PrescalerValue);
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void RTC_SetAlarm(uint32_t AlarmValue);
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uint32_t RTC_GetDivider(void);
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void RTC_WaitForLastTask(void);
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void RTC_WaitForSynchro(void);
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FlagStatus RTC_GetFlagStatus(uint16_t RTC_FLAG);
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void RTC_ClearFlag(uint16_t RTC_FLAG);
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ITStatus RTC_GetITStatus(uint16_t RTC_IT);
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void RTC_ClearITPendingBit(uint16_t RTC_IT);
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#if defined(CH32V20x_D8) || defined(CH32V20x_D8W)
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void Calibration_LSI(Cali_LevelTypeDef cali_Lv);
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#endif
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#ifdef __cplusplus
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}
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#endif
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#endif
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