/*
- Copyright (C) Dean Camera, 2010.
-
+ Copyright (C) Dean Camera, 2011.
+
dean [at] fourwalledcubicle [dot] com
- www.fourwalledcubicle.com
+ www.lufa-lib.org
*/
#include "DS1307.h"
-void DS1307_SetDate(uint8_t Day, uint8_t Month, uint8_t Year)
+void DS1307_SetDate(const uint8_t Day,
+ const uint8_t Month,
+ const uint8_t Year)
{
#if defined(DUMMY_RTC)
return;
#endif
- DS1307_DateRegs_t CurrentRTCDate;
- CurrentRTCDate.Byte1.TenDay = (Day / 10);
- CurrentRTCDate.Byte1.Day = (Day % 10);
- CurrentRTCDate.Byte2.TenMonth = (Month / 10);
- CurrentRTCDate.Byte2.Month = (Month % 10);
- CurrentRTCDate.Byte3.TenYear = (Year / 10);
- CurrentRTCDate.Byte3.Year = (Year % 10);
+ DS1307_DateRegs_t CurrentRTCDate;
+ CurrentRTCDate.Byte1.Fields.TenDay = (Day / 10);
+ CurrentRTCDate.Byte1.Fields.Day = (Day % 10);
+ CurrentRTCDate.Byte2.Fields.TenMonth = (Month / 10);
+ CurrentRTCDate.Byte2.Fields.Month = (Month % 10);
+ CurrentRTCDate.Byte3.Fields.TenYear = (Year / 10);
+ CurrentRTCDate.Byte3.Fields.Year = (Year % 10);
if (TWI_StartTransmission(DS1307_ADDRESS_WRITE, 10))
{
TWI_SendByte(CurrentRTCDate.Byte1.IntVal);
TWI_SendByte(CurrentRTCDate.Byte2.IntVal);
TWI_SendByte(CurrentRTCDate.Byte3.IntVal);
-
+
TWI_StopTransmission();
}
}
-void DS1307_SetTime(uint8_t Hour, uint8_t Minute, uint8_t Second)
+void DS1307_SetTime(const uint8_t Hour,
+ const uint8_t Minute,
+ const uint8_t Second)
{
#if defined(DUMMY_RTC)
return;
#endif
DS1307_TimeRegs_t CurrentRTCTime;
- CurrentRTCTime.Byte1.TenSec = (Second / 10);
- CurrentRTCTime.Byte1.Sec = (Second % 10);
- CurrentRTCTime.Byte1.CH = false;
- CurrentRTCTime.Byte2.TenMin = (Minute / 10);
- CurrentRTCTime.Byte2.Min = (Minute % 10);
- CurrentRTCTime.Byte3.TenHour = (Hour / 10);
- CurrentRTCTime.Byte3.Hour = (Hour % 10);
- CurrentRTCTime.Byte3.TwelveHourMode = false;
-
+ CurrentRTCTime.Byte1.Fields.TenSec = (Second / 10);
+ CurrentRTCTime.Byte1.Fields.Sec = (Second % 10);
+ CurrentRTCTime.Byte1.Fields.CH = false;
+ CurrentRTCTime.Byte2.Fields.TenMin = (Minute / 10);
+ CurrentRTCTime.Byte2.Fields.Min = (Minute % 10);
+ CurrentRTCTime.Byte3.Fields.TenHour = (Hour / 10);
+ CurrentRTCTime.Byte3.Fields.Hour = (Hour % 10);
+ CurrentRTCTime.Byte3.Fields.TwelveHourMode = false;
+
if (TWI_StartTransmission(DS1307_ADDRESS_WRITE, 10))
{
TWI_SendByte(DS1307_TIMEREG_START);
TWI_SendByte(CurrentRTCTime.Byte1.IntVal);
TWI_SendByte(CurrentRTCTime.Byte2.IntVal);
TWI_SendByte(CurrentRTCTime.Byte3.IntVal);
-
+
TWI_StopTransmission();
}
}
-
-void DS1307_GetDate(uint8_t* Day, uint8_t* Month, uint8_t* Year)
+
+void DS1307_GetDate(uint8_t* const Day,
+ uint8_t* const Month,
+ uint8_t* const Year)
{
#if defined(DUMMY_RTC)
*Day = 1;
if (TWI_StartTransmission(DS1307_ADDRESS_WRITE, 10))
{
TWI_SendByte(DS1307_DATEREG_START);
-
+
TWI_StopTransmission();
}
TWI_ReceiveByte(&CurrentRTCDate.Byte1.IntVal, false);
TWI_ReceiveByte(&CurrentRTCDate.Byte2.IntVal, false);
TWI_ReceiveByte(&CurrentRTCDate.Byte3.IntVal, true);
-
+
TWI_StopTransmission();
}
- *Day = (CurrentRTCDate.Byte1.TenDay * 10) + CurrentRTCDate.Byte1.Day;
- *Month = (CurrentRTCDate.Byte2.TenMonth * 10) + CurrentRTCDate.Byte2.Month;
- *Year = (CurrentRTCDate.Byte3.TenYear * 10) + CurrentRTCDate.Byte3.Year;
+ *Day = (CurrentRTCDate.Byte1.Fields.TenDay * 10) + CurrentRTCDate.Byte1.Fields.Day;
+ *Month = (CurrentRTCDate.Byte2.Fields.TenMonth * 10) + CurrentRTCDate.Byte2.Fields.Month;
+ *Year = (CurrentRTCDate.Byte3.Fields.TenYear * 10) + CurrentRTCDate.Byte3.Fields.Year;
}
-void DS1307_GetTime(uint8_t* Hour, uint8_t* Minute, uint8_t* Second)
+void DS1307_GetTime(uint8_t* const Hour,
+ uint8_t* const Minute,
+ uint8_t* const Second)
{
#if defined(DUMMY_RTC)
*Hour = 1;
if (TWI_StartTransmission(DS1307_ADDRESS_WRITE, 10))
{
TWI_SendByte(DS1307_TIMEREG_START);
-
+
TWI_StopTransmission();
}
-
+
DS1307_TimeRegs_t CurrentRTCTime;
if (TWI_StartTransmission(DS1307_ADDRESS_READ, 10))
TWI_ReceiveByte(&CurrentRTCTime.Byte1.IntVal, false);
TWI_ReceiveByte(&CurrentRTCTime.Byte2.IntVal, false);
TWI_ReceiveByte(&CurrentRTCTime.Byte3.IntVal, true);
-
+
TWI_StopTransmission();
}
- *Second = (CurrentRTCTime.Byte1.TenSec * 10) + CurrentRTCTime.Byte1.Sec;
- *Minute = (CurrentRTCTime.Byte2.TenMin * 10) + CurrentRTCTime.Byte2.Min;
- *Hour = (CurrentRTCTime.Byte3.TenHour * 10) + CurrentRTCTime.Byte3.Hour;
+ *Second = (CurrentRTCTime.Byte1.Fields.TenSec * 10) + CurrentRTCTime.Byte1.Fields.Sec;
+ *Minute = (CurrentRTCTime.Byte2.Fields.TenMin * 10) + CurrentRTCTime.Byte2.Fields.Min;
+ *Hour = (CurrentRTCTime.Byte3.Fields.TenHour * 10) + CurrentRTCTime.Byte3.Fields.Hour;
}
+