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115 lines
1.9 KiB
115 lines
1.9 KiB
/*
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Copyright (C) Dean Camera, 2011.
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dean [at] fourwalledcubicle [dot] com
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www.lufa-lib.org
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*/
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#ifndef _DS1307_H_
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#define _DS1307_H_
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/* Includes: */
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#include <avr/io.h>
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#include <LUFA/Drivers/Peripheral/TWI.h>
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/* Type Defines: */
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typedef struct
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{
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uint8_t Hour;
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uint8_t Minute;
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uint8_t Second;
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uint8_t Day;
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uint8_t Month;
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uint8_t Year;
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} TimeDate_t;
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typedef struct
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{
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union
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{
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struct
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{
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unsigned int Sec : 4;
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unsigned int TenSec : 3;
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unsigned int CH : 1;
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} Fields;
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uint8_t IntVal;
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} Byte1;
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union
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{
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struct
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{
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unsigned int Min : 4;
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unsigned int TenMin : 3;
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unsigned int Reserved : 1;
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} Fields;
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uint8_t IntVal;
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} Byte2;
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union
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{
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struct
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{
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unsigned int Hour : 4;
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unsigned int TenHour : 2;
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unsigned int TwelveHourMode : 1;
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unsigned int Reserved : 1;
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} Fields;
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uint8_t IntVal;
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} Byte3;
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} DS1307_TimeRegs_t;
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typedef struct
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{
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union
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{
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struct
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{
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unsigned int Day : 4;
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unsigned int TenDay : 2;
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unsigned int Reserved : 2;
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} Fields;
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uint8_t IntVal;
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} Byte1;
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union
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{
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struct
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{
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unsigned int Month : 4;
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unsigned int TenMonth : 1;
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unsigned int Reserved : 3;
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} Fields;
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uint8_t IntVal;
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} Byte2;
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union
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{
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struct
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{
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unsigned int Year : 4;
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unsigned int TenYear : 4;
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} Fields;
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uint8_t IntVal;
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} Byte3;
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} DS1307_DateRegs_t;
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/* Macros: */
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#define DS1307_ADDRESS_READ (0xD0 | TWI_ADDRESS_READ)
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#define DS1307_ADDRESS_WRITE (0xD0 | TWI_ADDRESS_WRITE)
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/* Function Prototypes: */
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void DS1307_SetTimeDate(const TimeDate_t* NewTimeDate);
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void DS1307_GetTimeDate(TimeDate_t* const TimeDate);
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#endif
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