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qmk_firmware/Projects/TempDataLogger/Lib/DS1307.h

122 lines
1.9 KiB

/*
Copyright (C) Dean Camera, 2011.
dean [at] fourwalledcubicle [dot] com
www.lufa-lib.org
*/
#ifndef _DS1307_H_
#define _DS1307_H_
/* Includes: */
#include <avr/io.h>
#include <LUFA/Drivers/Peripheral/TWI.h>
/* Type Defines: */
typedef struct
{
uint8_t Hour;
uint8_t Minute;
uint8_t Second;
uint8_t Day;
uint8_t Month;
uint8_t Year;
} TimeDate_t;
typedef struct
{
union
{
struct
{
unsigned int Sec : 4;
unsigned int TenSec : 3;
unsigned int CH : 1;
} Fields;
uint8_t IntVal;
} Byte1;
union
{
struct
{
unsigned int Min : 4;
unsigned int TenMin : 3;
unsigned int Reserved : 1;
} Fields;
uint8_t IntVal;
} Byte2;
union
{
struct
{
unsigned int Hour : 4;
unsigned int TenHour : 2;
unsigned int TwelveHourMode : 1;
unsigned int Reserved : 1;
} Fields;
uint8_t IntVal;
} Byte3;
union
{
struct
{
unsigned int DayOfWeek : 3;
unsigned int Reserved : 5;
} Fields;
uint8_t IntVal;
} Byte4;
union
{
struct
{
unsigned int Day : 4;
unsigned int TenDay : 2;
unsigned int Reserved : 2;
} Fields;
uint8_t IntVal;
} Byte5;
union
{
struct
{
unsigned int Month : 4;
unsigned int TenMonth : 1;
unsigned int Reserved : 3;
} Fields;
uint8_t IntVal;
} Byte6;
union
{
struct
{
unsigned int Year : 4;
unsigned int TenYear : 4;
} Fields;
uint8_t IntVal;
} Byte7;
} DS1307_DateTimeRegs_t;
/* Macros: */
#define DS1307_ADDRESS 0xD0
/* Function Prototypes: */
bool DS1307_SetTimeDate(const TimeDate_t* NewTimeDate);
bool DS1307_GetTimeDate(TimeDate_t* const TimeDate);
#endif