![](/media/cache/img/default_profile.jpg.50x50_q85.jpg)
Initialize clock chip to compile time the first time the program runs after that it will read the time from the clock chip. I find this easy since a quick recompile and load of utility sets the clock chip then we reload with the normal firmware. OK for use in low volume testing.
Dependencies: DS1302 compile_time_to_system_time mbed
Fork of DS1302_HelloWorld by
Initialize Clock To Compile Time
Initialize clock chip to compile time the first time the program runs after that it will read the time from the clock chip.
I find this an easy way to initialize my clock chip and then it stays set for as long as the battery lasts. I use a quick recompile then copy this utility to the mbed board where it sets the time and date. After than reload the mbed board with normal firmware and the clock remains set.
I use it for low volume testing.
Underlying library for parsing DATE and TIME is as follows:
The time supplied by compiler is UMT so you need to adjust for local time if needed.
Referenced
- https://developer.mbed.org/users/petereiso/notebook/cc-time-functions/
- http://stackoverflow.com/questions/1765014/convert-string-from-date-into-a-time-t
Diff: main.cpp
- Revision:
- 3:a51d2418c6fe
- Parent:
- 2:be7af7513a1b
--- a/main.cpp Mon Mar 28 05:58:07 2016 +0000 +++ b/main.cpp Wed Mar 30 14:50:02 2016 +0000 @@ -9,13 +9,16 @@ that set the CPU time to reflect the clock chip time on startup. - By Jose Ellsworth CTO of A2WH Free use for all, No promises, no warranty + By Joseph Ellsworth CTO of A2WH + Take a look at A2WH.com Producing Water from Air using Solar Energy + March-2016 License: https://developer.mbed.org/handbook/MIT-Licence NOTE: To force reset of clock time change ClockSetSentinal to a different value. Or you can change on the compare statement below if you want to keep the same sentinal. + */ -#define ClockSetSentinal 20 +#define ClockSetSentinal 19 #include "mbed.h" #include "DS1302.h" #include "compile_time_to_system_time.h"