1 /*
2  * Author: Stefan Andritoiu <stefan.andritoiu@intel.com>
3  * Copyright (c) 2015 Intel Corporation.
4  *
5  * Permission is hereby granted, free of charge, to any person obtaining
6  * a copy of this software and associated documentation files (the
7  * "Software"), to deal in the Software without restriction, including
8  * without limitation the rights to use, copy, modify, merge, publish,
9  * distribute, sublicense, and/or sell copies of the Software, and to
10  * permit persons to whom the Software is furnished to do so, subject to
11  * the following conditions:
12  *
13  * The above copyright notice and this permission notice shall be
14  * included in all copies or substantial portions of the Software.
15  *
16  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
17  * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
18  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
19  * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
20  * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
21  * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
22  * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
23  */
24 
25 //NOT TESTED!!!
26 public class DS1307Sample {
27 
28 	static {
29 		try {
30 			System.loadLibrary("javaupm_ds1307");
31 		} catch (UnsatisfiedLinkError e) {
32 			System.err.println("error in loading native library");
33 			System.exit(-1);
34 		}
35 	}
36 
printTime(upm_ds1307.DS1307 rtc)37 	static private void printTime(upm_ds1307.DS1307 rtc) {
38 		System.out.print("The time is: " + rtc.getMonth() + "/" + rtc.getDayOfMonth() + "/"
39 				+ rtc.getYear() + " " + rtc.getHours() + ":" + rtc.getMinutes() + ":"
40 				+ rtc.getSeconds());
41 
42 		if (rtc.getAmPmMode()) {
43 			if (rtc.getAmPmMode())
44 				System.out.print(" PM");
45 			else
46 				System.out.print(" AM");
47 		}
48 
49 		System.out.println();
50 
51 		if (rtc.getAmPmMode())
52 			System.out.println("Clock is in AM/PM mode");
53 		else
54 			System.out.println("Clock is in 24h mode");
55 
56 	}
57 
main(String[] args)58 	public static void main(String[] args) throws InterruptedException {
59 		// ! [Interesting]
60 		// Instantiate a DS1037 on I2C bus 0
61 		upm_ds1307.DS1307 rtc = new upm_ds1307.DS1307(0);
62 
63 		// always do this first
64 		System.out.println("Loading the current time...");
65 		if (!rtc.loadTime()) {
66 			System.err.println("rtc->loadTime() failed.");
67 			System.exit(-1);
68 		}
69 
70 		printTime(rtc);
71 
72 		// set the year as an example
73 		System.out.println("setting the year to 50");
74 		rtc.setYear(50);
75 		rtc.setTime();
76 
77 		// reload the time and print it
78 		rtc.loadTime();
79 		printTime(rtc);
80 
81 		// ! [Interesting]
82 	}
83 }