[Icc-avr] RTC - how to compute the difference in minutes

Jaspers, Ton t.jaspers at cpseurope.com
Wed Nov 28 11:04:30 PST 2007


Ad 1. No but you can very easily add it.  

Ad 2. Open source time does not use float's, it uses unsigned long's.   

I have succesfully ported the time.h defined code to Coldfire, AVR and
others.  
It takes a few hours (mostly testing) provided you have some experience
with  
these functions. After that the whole wealth of Linux time/date
conversion 
functions is available, including leap years, daylight saving time and 
formatting to any  known time/date format, including the scilly American
ones.
(MLSD first).   

Cheers,
Ton

 
	From: Robert Rademacher
	
	Hi,
	
	1) ICCAVR compiler DOES NOT have time.h.
	2) It needs to be calculated without using the float variable.

	Robert
	
	
	What about google-ing for open source implementation of time.h
functions?
	gmtime() and localtime() et al already know how to deal with
leap year etc
	
	http://en.wikipedia.org/wiki/Time.h for time.h info.
	
	
	HTH
	Ivan Vernot
-- 
	



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