PCF85063A.h

#ifndef __PCF85063A_H__
#define __PCF85063A_H__

#include <stdint.h>
#include <stddef.h>
#include "esp_system.h"
#include <time.h>
#include <sys/time.h>

#define PCF8563_READ_ADDR               0xA3
#define PCF8563_WRITE_ADDR              0xA2

#define PCF_ALARM_FLAG                  (1<<3)
#define PCF_TIMER_FLAG                  (1<<2)
#define PCF_ALARM_INTERRUPT_ENABLE      (1<<1)
#define PCF_TIMER_INTERRUPT_ENABLE      (1<<0)

#define PCF_CLKOUT_32768HZ              0b10000000
#define PCF_CLKOUT_1024HZ               0b10000001
#define PCF_CLKOUT_32HZ                 0b10000010
#define PCF_CLKOUT_1HZ                  0b10000011
#define PCF_CLKOUT_DISABLED             0b00000000

#define PCF_TIMER_4096HZ                0b10000000
#define PCF_TIMER_64HZ                  0b10000001
#define PCF_TIMER_1HZ                   0b10000010
#define PCF_TIMER_1_60HZ                0b10000011
#define PCF_TIMER_DISABLED              0b00000011

#define SDA_PIN         21
#define SCL_PIN         22
#define I2C_MASTER_CLK  100000

typedef struct {
    uint8_t minute;
    uint8_t hour;
    uint8_t day;
    uint8_t weekday;
} PCF_Alarm;

typedef struct {
    uint8_t second;
    uint8_t minute;
    uint8_t hour;
    uint8_t day;
    uint8_t weekday;
    uint8_t month;
    uint16_t year;
} PCF_DateTime;


int PCF_Init(void);
esp_err_t PCF_Write(uint8_t addr, uint8_t *data, size_t count);
esp_err_t PCF_Read(uint8_t addr, uint8_t *data, size_t count);
int PCF_SetDateTime(PCF_DateTime *dateTime);
int PCF_GetDateTime(PCF_DateTime *dateTime);
int PCF_rtcUpdateSYSTEM(void);
int PCF_systemUpdateRTC(void);
int PCF_updateRTC(struct tm *tm_srt);

#endif