Zoltan Hudak / Mbed 2 deprecated Clock_Hello

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

Dependencies:   mbed Clock

main.cpp@2:0fcd1b86588b, 2015-11-29 (annotated)

Committer:
hudakz
Date:
Sun Nov 29 19:51:16 2015 +0000
Revision:
2:0fcd1b86588b
Parent:
1:0e2956eaae94
Child:
3:0a77d653f8a6
Updated.

Who changed what in which revision?

UserRevisionLine numberNew contents of line
hudakz 0:81acb52fed21 1 /**
hudakz 0:81acb52fed21 2 * Demonstrates how to use the Clock library
hudakz 0:81acb52fed21 3 *
hudakz 2:0fcd1b86588b 4 * Note: It's a software implemented Real Time Clock.
hudakz 2:0fcd1b86588b 5 * No external hardware (like DS1307 or DS3231 or etc.) is needed.
hudakz 0:81acb52fed21 6 *
hudakz 0:81acb52fed21 7 */
hudakz 0:81acb52fed21 8
hudakz 0:81acb52fed21 9 #include "mbed.h"
hudakz 0:81acb52fed21 10 #include "Clock.h"
hudakz 0:81acb52fed21 11
hudakz 2:0fcd1b86588b 12 Serial pc(USBTX, USBRX);
hudakz 0:81acb52fed21 13
hudakz 0:81acb52fed21 14
hudakz 2:0fcd1b86588b 15 Clock rtc; // Create an instance of Clock class (set to 00:00:00 1 January, 1970)
hudakz 0:81acb52fed21 16
hudakz 2:0fcd1b86588b 17 // Create some alarms
hudakz 1:0e2956eaae94 18 time_t alarm1 = Clock::asTime(2015, 3, 24, 11, 36, 15); // year, month (1 stands for Jan etc.), day of month, hour, minute, second
hudakz 2:0fcd1b86588b 19 time_t alarm2 = Clock::asTime(2015, 3, 24, 11, 37, 30);
hudakz 0:81acb52fed21 20
hudakz 1:0e2956eaae94 21 volatile bool ticked = false; // tick flag
hudakz 0:81acb52fed21 22
hudakz 0:81acb52fed21 23 /**
hudakz 0:81acb52fed21 24 * @brief Clock tick event handler (called once a second)
hudakz 1:0e2956eaae94 25 * @note Keep it as short as possible.
hudakz 0:81acb52fed21 26 * @param
hudakz 0:81acb52fed21 27 * @retval
hudakz 0:81acb52fed21 28 */
hudakz 1:0e2956eaae94 29 void onClockTick(void) {
hudakz 1:0e2956eaae94 30 ticked = true;
hudakz 0:81acb52fed21 31 }
hudakz 0:81acb52fed21 32
hudakz 1:0e2956eaae94 33
hudakz 0:81acb52fed21 34 int main() {
hudakz 2:0fcd1b86588b 35 rtc.attach(&onClockTick); // attach a handler function to the rtc's tick event
hudakz 0:81acb52fed21 36
hudakz 0:81acb52fed21 37 //
hudakz 1:0e2956eaae94 38 // Set rtc for instance to 2015, March, 24th, 11 hours, 35 minutes, 45 seconds
hudakz 0:81acb52fed21 39 //
hudakz 2:0fcd1b86588b 40 rtc.set(2015, 3, 24, 11, 35, 45);
hudakz 0:81acb52fed21 41
hudakz 0:81acb52fed21 42 while (true) {
hudakz 1:0e2956eaae94 43 if(ticked == true) {
hudakz 1:0e2956eaae94 44 ticked = false; // clear the flag for next use
hudakz 1:0e2956eaae94 45
hudakz 2:0fcd1b86588b 46 // In your application you can
hudakz 2:0fcd1b86588b 47 // draw clock hands on a graphical display here
hudakz 2:0fcd1b86588b 48 // or update digital display etc.
hudakz 2:0fcd1b86588b 49 // ...
hudakz 2:0fcd1b86588b 50 // In this demo we just print some info ..
hudakz 1:0e2956eaae94 51 //
hudakz 2:0fcd1b86588b 52 pc.printf("==================================================\r\n");
hudakz 1:0e2956eaae94 53 //time_t time = time(NULL); // you can call C library time function if you like
hudakz 1:0e2956eaae94 54 time_t time = rtc.time(); // or Clock function
hudakz 2:0fcd1b86588b 55 pc.printf("Time as seconds since January 1, 1970 = %d\r\n", time);
hudakz 2:0fcd1b86588b 56 pc.printf("Time as a basic string = %s\r\n", ctime(&time));
hudakz 1:0e2956eaae94 57
hudakz 1:0e2956eaae94 58 //
hudakz 1:0e2956eaae94 59 // Use custom format:
hudakz 1:0e2956eaae94 60 //
hudakz 1:0e2956eaae94 61 char buffer[32];
hudakz 1:0e2956eaae94 62 strftime(buffer, 32, "%I:%M %p", localtime(&time));
hudakz 2:0fcd1b86588b 63 pc.printf("Time as a custom formatted string = %s\r\n", buffer);
hudakz 1:0e2956eaae94 64
hudakz 1:0e2956eaae94 65 //
hudakz 1:0e2956eaae94 66 // Design your own format:
hudakz 1:0e2956eaae94 67 //
hudakz 2:0fcd1b86588b 68 pc.printf("Date: %.4d-%.2d-%.2d\r\n", rtc.year(), rtc.mon(), rtc.mday());
hudakz 2:0fcd1b86588b 69 pc.printf("Time: %.2d:%.2d:%.2d\r\n", rtc.hour(), rtc.min(), rtc.sec());
hudakz 1:0e2956eaae94 70
hudakz 1:0e2956eaae94 71 //
hudakz 1:0e2956eaae94 72 // Perform periodical tasks:
hudakz 1:0e2956eaae94 73 //
hudakz 1:0e2956eaae94 74 if(rtc.sec() % 10 == 0) {
hudakz 2:0fcd1b86588b 75 pc.printf("\r\n Called each 10 seconds\r\n\r\n");
hudakz 1:0e2956eaae94 76 }
hudakz 1:0e2956eaae94 77
hudakz 1:0e2956eaae94 78 if(rtc.sec() == 0) {
hudakz 2:0fcd1b86588b 79 pc.printf("\r\n Called each minute.\r\n\r\n");
hudakz 1:0e2956eaae94 80
hudakz 1:0e2956eaae94 81 if(rtc.min() % 5 == 0)
hudakz 2:0fcd1b86588b 82 pc.printf("\r\n Called each 5 minutes\r\n");
hudakz 1:0e2956eaae94 83
hudakz 1:0e2956eaae94 84 if(rtc.min() == 0)
hudakz 2:0fcd1b86588b 85 pc.printf("\r\n Called each hour\r\n");
hudakz 1:0e2956eaae94 86
hudakz 1:0e2956eaae94 87 if(rtc.hour() == 0)
hudakz 2:0fcd1b86588b 88 pc.printf("\r\n Called at midnight\r\n");
hudakz 1:0e2956eaae94 89 }
hudakz 1:0e2956eaae94 90
hudakz 1:0e2956eaae94 91 //
hudakz 1:0e2956eaae94 92 // Trigger alarms:
hudakz 1:0e2956eaae94 93 //
hudakz 1:0e2956eaae94 94 if(rtc.time() == alarm1) {
hudakz 2:0fcd1b86588b 95 pc.printf("\r\n Alarm1 triggered!\r\n\r\n");
hudakz 1:0e2956eaae94 96 }
hudakz 1:0e2956eaae94 97
hudakz 1:0e2956eaae94 98 if(rtc.time() == alarm2) {
hudakz 2:0fcd1b86588b 99 pc.printf("\r\n Alarm2 triggered!\r\n\r\n");
hudakz 1:0e2956eaae94 100 }
hudakz 0:81acb52fed21 101 }
hudakz 0:81acb52fed21 102 }
hudakz 0:81acb52fed21 103 }