Projects/TempDataLogger/Lib/RTC.h

   1 /*
   2      Copyright (C) Dean Camera, 2014.
   3
   4   dean [at] fourwalledcubicle [dot] com
   5            www.lufa-lib.org
   6 */
   7
   8 #ifndef _RTC_H_
   9 #define _RTC_H_
  10
  11         /* Includes: */
  12                 #include <avr/io.h>
  13
  14                 #include <LUFA/Drivers/Peripheral/TWI.h>
  15
  16                 #include "Config/AppConfig.h"
  17
  18         /* Type Defines: */
  19                 typedef struct
  20                 {
  21                         uint8_t Hour;
  22                         uint8_t Minute;
  23                         uint8_t Second;
  24                         uint8_t Day;
  25                         uint8_t Month;
  26                         uint8_t Year;
  27                 } TimeDate_t;
  28
  29                 typedef struct
  30                 {
  31                         union
  32                         {
  33                                 struct
  34                                 {
  35                                         unsigned Sec            : 4;
  36                                         unsigned TenSec         : 3;
  37                                         unsigned CH             : 1;
  38                                 } Fields;
  39
  40                                 uint8_t IntVal;
  41                         } Byte1;
  42
  43                         union
  44                         {
  45                                 struct
  46                                 {
  47                                         unsigned Min            : 4;
  48                                         unsigned TenMin         : 3;
  49                                         unsigned Reserved       : 1;
  50                                 } Fields;
  51
  52                                 uint8_t IntVal;
  53                         } Byte2;
  54
  55                         union
  56                         {
  57                                 struct
  58                                 {
  59                                         unsigned Hour            : 4;
  60                                         unsigned TenHour         : 2;
  61                                         unsigned TwelveHourMode  : 1;
  62                                         unsigned Reserved        : 1;
  63                                 } Fields;
  64
  65                                 uint8_t IntVal;
  66                         } Byte3;
  67
  68                         union
  69                         {
  70                                 struct
  71                                 {
  72                                         unsigned DayOfWeek       : 3;
  73                                         unsigned Reserved        : 5;
  74                                 } Fields;
  75
  76                                 uint8_t IntVal;
  77                         } Byte4;
  78
  79                         union
  80                         {
  81                                 struct
  82                                 {
  83                                         unsigned Day             : 4;
  84                                         unsigned TenDay          : 2;
  85                                         unsigned Reserved        : 2;
  86                                 } Fields;
  87
  88                                 uint8_t IntVal;
  89                         } Byte5;
  90
  91                         union
  92                         {
  93                                 struct
  94                                 {
  95                                         unsigned Month           : 4;
  96                                         unsigned TenMonth        : 1;
  97                                         unsigned Reserved        : 3;
  98                                 } Fields;
  99
 100                                 uint8_t IntVal;
 101                         } Byte6;
 102
 103                         union
 104                         {
 105                                 struct
 106                                 {
 107                                         unsigned Year            : 4;
 108                                         unsigned TenYear         : 4;
 109                                 } Fields;
 110
 111                                 uint8_t IntVal;
 112                         } Byte7;
 113                 } DS1307_DateTimeRegs_t;
 114
 115         /* Macros: */
 116                 /** TWI address of the DS1307 device on the bus. */
 117                 #define DS1307_ADDRESS       0xD0
 118
 119         /* Function Prototypes: */
 120                 void RTC_Init(void);
 121                 void RTC_Tick500ms(void);
 122                 bool RTC_SetTimeDate(const TimeDate_t* NewTimeDate);
 123                 bool RTC_GetTimeDate(TimeDate_t* const TimeDate);
 124
 125 #endif
 126