Enhance TemperatureDatalogger project -- add RTC capabilities so that data is logged...

[pub/lufa.git] / Projects / TemperatureDataLogger / Lib / DS1307.c

diff --git a/Projects/TemperatureDataLogger/Lib/DS1307.c b/Projects/TemperatureDataLogger/Lib/DS1307.c
new file mode 100644 (file)
index 0000000..37817e9
--- /dev/null
+++ b/Projects/TemperatureDataLogger/Lib/DS1307.c
@@ -0,0 +1,129 @@
+/*\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_Init(void)\r
+{\r
+       // Nothing to initialize\r
+}\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))\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))\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))\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))\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))\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))\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