[avr-libc-commit] [2355] Reworked (yet again) the description of system_tick().

[Mike Rice]

Revision: 2355
          http://svn.sv.gnu.org/viewvc/?view=rev&root=avr-libc&revision=2355
Author:   swfltek
Date:     2013-04-20 11:32:50 +0000 (Sat, 20 Apr 2013)
Log Message:
-----------
Reworked (yet again) the description of system_tick(). I don't know how to 
describe it any more clearly than it is now.
Also removed my time zone from the figure for the 'end of time'.

Modified Paths:
--------------
    trunk/avr-libc/include/time.h

Modified: trunk/avr-libc/include/time.h
===================================================================
--- trunk/avr-libc/include/time.h       2013-04-19 21:56:17 UTC (rev 2354)
+++ trunk/avr-libc/include/time.h       2013-04-20 11:32:50 UTC (rev 2355)
@@ -59,7 +59,7 @@
 
     /**
         time_t represents seconds elapsed from Midnight, Jan 1 2000 UTC (the 
Y2K 'epoch').
-        Its range allows time to be handled properly up to Tue Feb 7 01:28:15 
2136.
+        Its range allows time to be handled properly up to Tue Feb 7 06:28:15 
2136.
     */
     typedef uint32_t time_t;
 
@@ -235,15 +235,15 @@
         Maintain the system time by calling this function at a rate of 1 Hertz.
 
         It is anticipated that this function will typically be called from 
within an
-        Interrupt Service Routine, (though that is not required). It therefore 
includes all necessary
-        prologue and epilogue, allowing it to be called from within a 'naked' 
ISR,  which will prevent
-        an unnecessary cpu register 'spill'
+        Interrupt Service Routine, (though that is not required). It therefore 
includes code which
+        makes it simple to use from within a 'Naked' ISR, avoiding the cost of 
saving and restoring
+        all the cpu registers.
 
         Such an ISR may resemble the following example...
 
-            ISR(TIMER2_COMPA_vect, ISR_NAKED)
+            ISR(RTC_OVF_vect, ISR_NAKED)
             {
-                system_tick_i();
+                system_tick();
                 reti();
             }
     */