Diff: time_config.h

Revision:

0:095b19b8fb7e

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/time_config.h	Thu Mar 07 23:30:19 2019 +0000
@@ -0,0 +1,106 @@
+#ifndef TIME_CONFIG_H
+#define TIME_CONFIG_H
+ 
+#include "mbed.h"
+
+time_t example_time() 
+{
+    // set an intial time
+    //  ...not really necessary for this example, but it beats setting it to 0 or some non-obvious large integer (# of seconds since 1/1/1970)
+    time_t rawtime=0;
+
+    struct tm * init_timeinfo;
+
+    // initialize time
+    init_timeinfo = localtime(&rawtime); // note:  must initialize the struct with this before trying to set components
+                                 // ...else code goes into the weeds!!
+    /*
+    init_timeinfo->tm_sec =     atoi(ss);
+    init_timeinfo->tm_min =     atoi(mm);
+    init_timeinfo->tm_hour =    atoi(hh);
+    init_timeinfo->tm_mday =    atoi(DD);
+    init_timeinfo->tm_mon =     atoi(MM) - 1;
+    init_timeinfo->tm_year =    (2000+atoi(AA)) - 1900;       
+    */
+    int Day=01;
+    int Month=01;
+    int Year=2019;
+    int Hour=0;
+    int Minutes=0;
+    int Seconds=00;
+    
+    init_timeinfo->tm_sec =     Seconds;
+    init_timeinfo->tm_min =     Minutes;
+    init_timeinfo->tm_hour =    Hour;
+    init_timeinfo->tm_mday =    Day;
+    init_timeinfo->tm_mon =     Month - 1;
+    init_timeinfo->tm_year =    Year - 1900;    
+
+    // compute the proper value for time in time_t type
+    rawtime = mktime(init_timeinfo);
+    return rawtime;
+    
+} //end time_t example_time() 
+
+void update_rtc() 
+{
+    // for use as interrupt routine, to insure that RTC is updated periodically
+    //  ...if rtc is not read before the underlying counter rolls over (typically 512 seconds), the RTC value will be wrong
+    //  ...ideally this would be done as part of the nrf51_rtc method, but I couldn't get it to behave (see nrf51_rtc.cpp for details)
+    rtc.time();
+    
+} //end update_rtc() 
+
+void time_init()
+{
+    // user selectable, any time < 512 seconds is OK
+    #define PERIODIC_UPDATE 1
+    Ticker rtc_ticker;
+    rtc_ticker.attach(&update_rtc, PERIODIC_UPDATE); // update the time regularly
+
+    time_t initial_time = example_time();
+    rtc.set_time(initial_time);
+    
+} //end time_init()
+
+void print_time() 
+{
+    // called when a button is pushed, this prints the current time to the USB-connected console
+
+    time_t rawtime=rtc.time();
+
+    // massage the time into a human-friendly format for printing
+    struct tm * timeinfo;
+    timeinfo = localtime(&rawtime);
+    char date[24];
+    strftime(date,sizeof(date),"%H:%M:%S em %d/%m/%G",timeinfo);
+    Open.printf("Horario e data atual: %s.\r\n",date);
+    
+}// end print_time() 
+
+void ask_time(char date[100]) 
+{  
+    time_t rawtime=rtc.time();
+
+    // massage the time into a human-friendly format for printing
+    struct tm * timeinfo;
+    timeinfo = localtime(&rawtime);
+    char buff1[100];
+    strftime(buff1,sizeof(buff1),"%H-%M-%S",timeinfo);
+    sprintf(date,"%s,",buff1);
+    
+} //end ask_time() 
+
+void ask_day(char daya[2]) 
+{
+    time_t rawtime=rtc.time();
+
+    // maessage the time into a human-friendly format for printing
+    struct tm * timeinfo;
+    timeinfo = localtime(&rawtime);
+    strftime(daya,sizeof(daya),"%d",timeinfo);
+    
+} //end ask_day()
+
+
+#endif