try this
Fork of DS1307_RTC by
Diff: DS1307_RTC.cpp
- Revision:
- 1:95a90bac5d6d
- Parent:
- 0:2bbb23558624
- Child:
- 2:a9a0784930bd
diff -r 2bbb23558624 -r 95a90bac5d6d DS1307_RTC.cpp --- a/DS1307_RTC.cpp Sat Oct 11 06:04:41 2014 +0000 +++ b/DS1307_RTC.cpp Sat Nov 01 14:05:25 2014 +0000 @@ -14,6 +14,26 @@ Day[0] = ""; Day[1] = "Sun"; + Day[2] = "Mon"; + Day[3] = "Tue"; + Day[4] = "Wed"; + Day[5] = "Thu"; + Day[6] = "Fri"; + Day[7] = "Sat"; + + Mon[0] = ""; + Mon[1] = "Jan"; + Mon[2] = "Feb"; + Mon[3] = "Mar"; + Mon[4] = "Apr"; + Mon[5] = "May"; + Mon[6] = "Jun"; + Mon[7] = "Jul"; + Mon[8] = "Aug"; + Mon[9] = "Sep"; + Mon[10] = "Oct"; + Mon[11] = "Nov"; + Mon[12] = "Dec"; rtc_sec = 0; rtc_minute = 0; @@ -94,6 +114,24 @@ RTC_write_reg(0, bcd(rtc_sec)); //seconds reg } +void DS1307_RTC::set_RTC_time_UTC(float utc_time, int timezone){ + int Hour = (int)((int)utc_time/10000) + timezone; + if(Hour < 0) + Hour += 24; + + int Min = (int)((int)utc_time/100%100); + int Sec = (int)utc_time % 100; + +/* RTC_write_reg(6, bcd(rtc_year)); //seconds reg + RTC_write_reg(5, bcd(rtc_month)); //month reg + RTC_write_reg(3, bcd(rtc_day)); //day reg + RTC_write_reg(4, bcd(rtc_date)); //date reg*/ + + RTC_write_reg(2, bcd(Hour)); //hour reg + RTC_write_reg(1, bcd(Min)); //minute reg + RTC_write_reg(0, bcd(Sec)); //seconds reg +} + void DS1307_RTC::get_RTC_time(char *str) { rtc_sec = unbcd(RTC_read_reg(0)); //