RTC_I2C Class Reference

A generic I2C RTC base class. DO NOT USE DIRECTLY. More...

#include <RTClib.h>

Inheritance diagram for RTC_I2C:

Protected Member Functions
uint8_t	read_register (uint8_t reg)
	Read value from register. More...
void	write_register (uint8_t reg, uint8_t val)
	Write value to register. More...

Static Protected Member Functions
static uint8_t	bcd2bin (uint8_t val)
	Convert a binary coded decimal value to binary. RTC stores time/date values as BCD. More...
static uint8_t	bin2bcd (uint8_t val)
	Convert a binary value to BCD format for the RTC registers. More...

Protected Attributes
Adafruit_I2CDevice *	i2c_dev = NULL
	Pointer to I2C bus interface.

Detailed Description

A generic I2C RTC base class. DO NOT USE DIRECTLY.

Member Function Documentation

bcd2bin()

static uint8_t RTC_I2C::bcd2bin ( uint8_t  val )

inlinestaticprotected

Convert a binary coded decimal value to binary. RTC stores time/date values as BCD.

Parameters

val

BCD value

Returns

Binary value

bin2bcd()

static uint8_t RTC_I2C::bin2bcd ( uint8_t  val )

inlinestaticprotected

Convert a binary value to BCD format for the RTC registers.

Parameters

val	Binary value

Returns

BCD value

read_register()

uint8_t RTC_I2C::read_register ( uint8_t  reg )

protected

Read value from register.

Parameters

reg	register address

Returns

value of register

write_register()

void RTC_I2C::write_register ( uint8_t  reg, uint8_t  val  )

protected

Write value to register.

Parameters

reg	register address
val	value to write

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The documentation for this class was generated from the following files:

• src/RTClib.h
• src/RTClib.cpp