Make XPLAINBridge serial bridge much more reliable for the reception of characters...
[pub/USBasp.git] / Projects / TemperatureDataLogger / Lib / DS1307.c
index 0c1d98f..8aa6ad0 100644 (file)
-/*\r
-     Copyright (C) Dean Camera, 2010.\r
-              \r
-  dean [at] fourwalledcubicle [dot] com\r
-      www.fourwalledcubicle.com\r
-*/\r
-\r
-#include "DS1307.h"\r
-\r
-void DS1307_SetDate(uint8_t Day, uint8_t Month, uint8_t Year)\r
-{\r
-#if defined(DUMMY_RTC)\r
-       return;\r
-#endif\r
-\r
-       DS1307_DateRegs_t CurrentRTCDate;               \r
-       CurrentRTCDate.Byte1.TenDay   = (Day / 10);\r
-       CurrentRTCDate.Byte1.Day      = (Day % 10);\r
-       CurrentRTCDate.Byte2.TenMonth = (Month / 10);\r
-       CurrentRTCDate.Byte2.Month    = (Month % 10);\r
-       CurrentRTCDate.Byte3.TenYear  = (Year / 10);\r
-       CurrentRTCDate.Byte3.Year     = (Year % 10);\r
-\r
-       if (TWI_StartTransmission(DS1307_ADDRESS_WRITE, 10))\r
-       {\r
-               TWI_SendByte(DS1307_DATEREG_START);\r
-               TWI_SendByte(CurrentRTCDate.Byte1.IntVal);\r
-               TWI_SendByte(CurrentRTCDate.Byte2.IntVal);\r
-               TWI_SendByte(CurrentRTCDate.Byte3.IntVal);\r
-               \r
-               TWI_StopTransmission();\r
-       }\r
-}\r
-\r
-void DS1307_SetTime(uint8_t Hour, uint8_t Minute, uint8_t Second)\r
-{\r
-#if defined(DUMMY_RTC)\r
-       return;\r
-#endif\r
-\r
-       DS1307_TimeRegs_t CurrentRTCTime;\r
-       CurrentRTCTime.Byte1.TenSec  = (Second / 10);\r
-       CurrentRTCTime.Byte1.Sec     = (Second % 10);\r
-       CurrentRTCTime.Byte1.CH      = false;\r
-       CurrentRTCTime.Byte2.TenMin  = (Minute / 10);\r
-       CurrentRTCTime.Byte2.Min     = (Minute % 10);\r
-       CurrentRTCTime.Byte3.TenHour = (Hour / 10);\r
-       CurrentRTCTime.Byte3.Hour    = (Hour % 10);\r
-       CurrentRTCTime.Byte3.TwelveHourMode = false;\r
-       \r
-       if (TWI_StartTransmission(DS1307_ADDRESS_WRITE, 10))\r
-       {\r
-               TWI_SendByte(DS1307_TIMEREG_START);\r
-               TWI_SendByte(CurrentRTCTime.Byte1.IntVal);\r
-               TWI_SendByte(CurrentRTCTime.Byte2.IntVal);\r
-               TWI_SendByte(CurrentRTCTime.Byte3.IntVal);\r
-               \r
-               TWI_StopTransmission();\r
-       }\r
-}\r
-               \r
-void DS1307_GetDate(uint8_t* Day, uint8_t* Month, uint8_t* Year)\r
-{\r
-#if defined(DUMMY_RTC)\r
-       *Day   = 1;\r
-       *Month = 1;\r
-       *Year  = 1;\r
-       return;\r
-#endif\r
-\r
-       if (TWI_StartTransmission(DS1307_ADDRESS_WRITE, 10))\r
-       {\r
-               TWI_SendByte(DS1307_DATEREG_START);\r
-               \r
-               TWI_StopTransmission();\r
-       }\r
-\r
-       DS1307_DateRegs_t CurrentRTCDate;\r
-\r
-       if (TWI_StartTransmission(DS1307_ADDRESS_READ, 10))\r
-       {\r
-               TWI_ReceiveByte(&CurrentRTCDate.Byte1.IntVal, false);\r
-               TWI_ReceiveByte(&CurrentRTCDate.Byte2.IntVal, false);\r
-               TWI_ReceiveByte(&CurrentRTCDate.Byte3.IntVal, true);\r
-               \r
-               TWI_StopTransmission();\r
-       }\r
-\r
-       *Day    = (CurrentRTCDate.Byte1.TenDay   * 10) + CurrentRTCDate.Byte1.Day;\r
-       *Month  = (CurrentRTCDate.Byte2.TenMonth * 10) + CurrentRTCDate.Byte2.Month;\r
-       *Year   = (CurrentRTCDate.Byte3.TenYear  * 10) + CurrentRTCDate.Byte3.Year;\r
-}\r
-\r
-void DS1307_GetTime(uint8_t* Hour, uint8_t* Minute, uint8_t* Second)\r
-{\r
-#if defined(DUMMY_RTC)\r
-       *Hour   = 1;\r
-       *Minute = 1;\r
-       *Second = 1;\r
-       return;\r
-#endif\r
-\r
-       if (TWI_StartTransmission(DS1307_ADDRESS_WRITE, 10))\r
-       {\r
-               TWI_SendByte(DS1307_TIMEREG_START);\r
-               \r
-               TWI_StopTransmission();\r
-       }\r
-       \r
-       DS1307_TimeRegs_t CurrentRTCTime;\r
-\r
-       if (TWI_StartTransmission(DS1307_ADDRESS_READ, 10))\r
-       {\r
-               TWI_ReceiveByte(&CurrentRTCTime.Byte1.IntVal, false);\r
-               TWI_ReceiveByte(&CurrentRTCTime.Byte2.IntVal, false);\r
-               TWI_ReceiveByte(&CurrentRTCTime.Byte3.IntVal, true);\r
-               \r
-               TWI_StopTransmission();\r
-       }\r
-\r
-       *Second  = (CurrentRTCTime.Byte1.TenSec  * 10) + CurrentRTCTime.Byte1.Sec;\r
-       *Minute  = (CurrentRTCTime.Byte2.TenMin  * 10) + CurrentRTCTime.Byte2.Min;\r
-       *Hour    = (CurrentRTCTime.Byte3.TenHour * 10) + CurrentRTCTime.Byte3.Hour;\r
-}\r
+/*
+     Copyright (C) Dean Camera, 2010.
+              
+  dean [at] fourwalledcubicle [dot] com
+      www.fourwalledcubicle.com
+*/
+
+#include "DS1307.h"
+
+void DS1307_SetDate(uint8_t Day, uint8_t Month, 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);
+
+       if (TWI_StartTransmission(DS1307_ADDRESS_WRITE, 10))
+       {
+               TWI_SendByte(DS1307_DATEREG_START);
+               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)
+{
+#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;
+       
+       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)
+{
+#if defined(DUMMY_RTC)
+       *Day   = 1;
+       *Month = 1;
+       *Year  = 1;
+       return;
+#endif
+
+       if (TWI_StartTransmission(DS1307_ADDRESS_WRITE, 10))
+       {
+               TWI_SendByte(DS1307_DATEREG_START);
+               
+               TWI_StopTransmission();
+       }
+
+       DS1307_DateRegs_t CurrentRTCDate;
+
+       if (TWI_StartTransmission(DS1307_ADDRESS_READ, 10))
+       {
+               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;
+}
+
+void DS1307_GetTime(uint8_t* Hour, uint8_t* Minute, uint8_t* Second)
+{
+#if defined(DUMMY_RTC)
+       *Hour   = 1;
+       *Minute = 1;
+       *Second = 1;
+       return;
+#endif
+
+       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;
+}