127 lines
2.0 KiB
C
127 lines
2.0 KiB
C
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/*
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Copyright (C) Dean Camera, 2019.
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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 _RTC_H_
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#define _RTC_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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#include "Config/AppConfig.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 Sec : 4;
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unsigned TenSec : 3;
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unsigned 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 Min : 4;
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unsigned TenMin : 3;
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unsigned 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 Hour : 4;
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unsigned TenHour : 2;
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unsigned TwelveHourMode : 1;
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unsigned Reserved : 1;
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} Fields;
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uint8_t IntVal;
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} Byte3;
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union
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{
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struct
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{
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unsigned DayOfWeek : 3;
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unsigned Reserved : 5;
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} Fields;
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uint8_t IntVal;
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} Byte4;
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union
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{
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struct
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{
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unsigned Day : 4;
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unsigned TenDay : 2;
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unsigned Reserved : 2;
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} Fields;
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uint8_t IntVal;
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} Byte5;
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union
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{
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struct
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{
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unsigned Month : 4;
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unsigned TenMonth : 1;
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unsigned Reserved : 3;
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} Fields;
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uint8_t IntVal;
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} Byte6;
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union
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{
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struct
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{
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unsigned Year : 4;
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unsigned TenYear : 4;
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} Fields;
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uint8_t IntVal;
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} Byte7;
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} DS1307_DateTimeRegs_t;
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/* Macros: */
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/** TWI address of the DS1307 device on the bus. */
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#define DS1307_ADDRESS 0xD0
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/* Function Prototypes: */
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void RTC_Init(void);
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void RTC_Tick500ms(void);
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bool RTC_SetTimeDate(const TimeDate_t* NewTimeDate);
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bool RTC_GetTimeDate(TimeDate_t* const TimeDate);
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#endif
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