bm8563.c File Reference

#include "bm8563.h"
#include "i2c_device.h"
#include "driver/i2c.h"
#include <string.h>

Macros
#define	BM8563_ADDR   0x51

Functions
void	BM8563_Init ()
	Initializes the BM8563 real-time clock over i2c. More...
void	BM8563_SetTime (rtc_date_t *data)
	Sets the date and time on the BM8563. More...
void	BM8563_GetTime (rtc_date_t *data)
	Retrieves the date and time on the BM8563. More...
void	BM8563_SetAlarmIRQ (int8_t minute, int8_t hour, int8_t day, int8_t week)
	Sets the date and time "alarm" IRQ with the BM8563. More...
int16_t	BM8563_SetTimerIRQ (int16_t value)
	Sets the "timer" IRQ on the BM8563. More...
int16_t	BM8563_GetTimerTime ()
	Retrieve the time left in the set timer. More...
uint8_t	BM8563_GetIRQ ()
	Retrieve the IRQ status from timer/alarm. More...
void	BM8563_ClearIRQ ()
	Clear the IRQ status from timer/alarm. More...

Macro Definition Documentation

BM8563_ADDR

#define BM8563_ADDR   0x51

Function Documentation

BM8563_Init()

void BM8563_Init

(

)

Initializes the BM8563 real-time clock over i2c.

Note

The Core2ForAWS_Init() calls this function when the hardware feature is enabled.

BM8563_SetTime()

void BM8563_SetTime

(

rtc_date_t *

data

)

Sets the date and time on the BM8563.

Example:

Set the date and time to September 30, 2020 13:40:10.

rtc_date_t date;
date.year = 2020;
date.month = 9;
date.day = 30;
 
date.hour = 13;
date.minute = 40;
date.second = 10;
BM8563_SetTime(&date);

Parameters

[in]

data

Desired date and time.

BM8563_GetTime()

void BM8563_GetTime

(

rtc_date_t *

data

)

Retrieves the date and time on the BM8563.

Example:

Get the current date and time and print it out.

rtc_date_t date;
 
BM8563_GetTime(&date);
printf("Date: %d-%02d-%02d Time: %02d:%02d:%02d",
        date.year, date.month, date.day, date.hour, date.minute, date.second)

Parameters

[out]

data

The current date and time.

BM8563_SetAlarmIRQ()

void BM8563_SetAlarmIRQ	(	int8_t	minute,
		int8_t	hour,
		int8_t	day,
		int8_t	week
	)

Sets the date and time "alarm" IRQ with the BM8563.

Parameters

[in]	minute	The minute to trigger the IRQ.
[in]	hour	The hour to trigger the IRQ.
[in]	day	The day to trigger the IRQ.
[in]	week	The week to trigger the IRQ.

BM8563_SetTimerIRQ()

int16_t BM8563_SetTimerIRQ

(

int16_t

value

)

Sets the "timer" IRQ on the BM8563.

Parameters

[in]

value

Desired countdown time to trigger the IRQ. The maximum countdown time is 255 * 60 seconds.

BM8563_GetTimerTime()

int16_t BM8563_GetTimerTime

(

)

Retrieve the time left in the set timer.

BM8563_GetIRQ()

uint8_t BM8563_GetIRQ

(

)

Retrieve the IRQ status from timer/alarm.

BM8563_ClearIRQ()

void BM8563_ClearIRQ

(

)

Clear the IRQ status from timer/alarm.