Zoltan Hudak / Clock

Software implemented real time clock driven by a Ticker. No external hardware (like DS1307 or DS3231 or etc.) is needed. Should work on any mbed platform where Ticker works.

Dependents:   Clock_Hello

See demo:

Import programClock_Hello

Demo for the Clock library (real time clock driven by a Ticker).

Last commit 15 Jan 2019 by Zoltan Hudak

Diff: Clock.cpp

Revision:
5:d65fc7060635
Parent:
4:bbe7d7474acd
Child:
6:7edabed68b0f
--- a/Clock.cpp	Fri Apr 01 07:23:02 2016 +0000
+++ b/Clock.cpp	Fri May 20 18:14:34 2016 +0000
@@ -29,10 +29,10 @@
 #include "mbed.h"
 #include "Clock.h"
 
-// static member initialization
+// Static member initialization
 time_t          Clock::_time = 0;
 tm              Clock::_tm = {0, 0, 0, 0, 0, 0, -1};
-ClockFnc_t      Clock::_onTick = NULL;
+FunctionPointer Clock::_onTick = NULL;
 
 /**
  * @brief   Constructs a Clock.
@@ -48,7 +48,7 @@
  * @retval
  */
 Clock::Clock(int year, int mon, int mday, int hour, int min, int sec) {
-    _ticker.attach(&tick, 1.0);             // a Ticker ticking at 1s rate
+    _ticker.attach_us(&tick, 1000000);      // a Ticker ticking at 1s rate
     set(year, mon, mday, hour, min, sec);   // set date and time as requested
     attach_rtc(time, NULL, NULL, NULL);     // attach for C time functions
 }
@@ -63,7 +63,7 @@
  * @retval
  */
 Clock::Clock() {
-    _ticker.attach(&tick, 1.0);             // a Ticker ticking at 1s rate
+    _ticker.attach_us(&tick, 1000000);      // a Ticker ticking at 1s rate
     set(1970, 1, 1, 0, 0, 0);               // set date and time to the begin of Epoch
     attach_rtc(time, NULL, NULL, NULL);     // attach for C time functions
 }
@@ -80,20 +80,17 @@
  * @retval
  */
 void Clock::set(int year, int mon, int mday, int hour, int min, int sec) {
-    _ticker.detach();           // suspend ticks
-
+    _ticker.detach();                   // suspend ticks
     _tm.tm_year = year - 1900;
-    _tm.tm_mon =  mon - 1;      // convert to 0 based month
+    _tm.tm_mon =  mon - 1;              // convert to 0 based month
     _tm.tm_mday = mday;
     _tm.tm_hour = hour;
     _tm.tm_min = min;
     _tm.tm_sec = sec;
-    _tm.tm_isdst = -1;          // Is DST on? 1 = yes, 0 = no, -1 = unknown
-
-    _time = mktime(&_tm);       // convert to seconds elapsed since January 1, 1970
-    set_time(_time);            // set time
-
-    _ticker.attach(&tick, 1.0); // resume ticks
+    _tm.tm_isdst = -1;                  // Is DST on? 1 = yes, 0 = no, -1 = unknown
+    _time = mktime(&_tm);               // convert to seconds elapsed since January 1, 1970
+    set_time(_time);                    // set time
+    _ticker.attach_us(&tick, 1000000);  // resume ticks
 }
 
 /**
@@ -103,9 +100,9 @@
  * @retval
  */
 void Clock::set(tm& val) {
-    _ticker.detach();           // suspend ticks
+    _ticker.detach();                   // suspend ticks
     _tm = val;
-    _ticker.attach(&tick, 1.0); // resume ticks
+    _ticker.attach_us(&tick, 1000000);  // resume ticks
 }
 
 /**
@@ -115,10 +112,10 @@
  * @retval
  */
 void Clock::set(time_t val) {
-    _ticker.detach();           // suspend ticks
+    _ticker.detach();                   // suspend ticks
     _time = val;
     _tm = *::localtime(&_time);
-    _ticker.attach(&tick, 1.0); // resume ticks
+    _ticker.attach_us(&tick, 1000000);  // resume ticks
 }
 
 /**
@@ -210,9 +207,7 @@
  */
 void Clock::tick(void) {
     _tm = *::localtime(&(++_time));
-
-    if(_onTick != NULL) // if a handler was attached by the user
-        _onTick();      // call it
+    _onTick.call();
 }
 
 
@@ -222,10 +217,12 @@
  * @param   fnc:    User defined handler function of type void fnc(void)
  * @retval
  */
-void Clock::attach(ClockFnc_t fnc) {
-    _onTick = fnc;
+void Clock::attach(void (*fptr)(void)) {
+    if(fptr)
+        _onTick.attach(fptr);
 }
 
+
 /**
  * @brief   Detaches handler function from the onTick event
  * @note
@@ -233,7 +230,7 @@
  * @retval
  */
 void Clock::detach() {
-    _onTick = NULL;
+    _onTick.attach(NULL);
 }
 
 /**