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 public class Ublox6Sample {
26 	private static final int BUFFERLENGTH = 256;
27 
28 	static {
29 		try {
30 			System.loadLibrary("javaupm_ublox6");
31 		} catch (UnsatisfiedLinkError e) {
32 			System.err.println("error in loading native library");
33 			System.exit(-1);
34 		}
35 	}
36 
main(String[] args)37 	public static void main(String[] args) throws InterruptedException {
38 		// ! [Interesting]
39 		// Instantiate a Ublox6 GPS device on uart 0
40 		upm_ublox6.Ublox6 nmea = new upm_ublox6.Ublox6(0);
41 
42 		// make sure port is initialized properly. 9600 baud is the default.
43 		if (!nmea.setupTty()) {
44 			throw new RuntimeException("Failed to setup tty port parameters");
45 		}
46 
47 		// Collect and output NMEA data. There are various libraries out on
48 		// the Internet, that can handle decoding NMEA data and presenting
49 		// it in a more easily accessible format. This example will just
50 		// check for, and read raw NMEA data from the device and output it
51 		// on standard output.
52 
53 		// This device also supports numerous configuration options, which
54 		// you can set with writeData(). Please refer to the Ublox-6 data
55 		// sheet for further information on the formats of the data sent and
56 		// received, and the various operating modes available.
57 
58 		byte[] nmeaBuffer = new byte[BUFFERLENGTH];
59 
60 		while (true) {
61 			// we don't want the read to block in this example, so always
62 			// check to see if data is available first.
63 			if (nmea.dataAvailable()) {
64 				int rv = nmea.readData(nmeaBuffer);
65 
66 				if (rv > 0)
67 					for (int i = 0; i < rv; i++)
68 						System.out.print((char) nmeaBuffer[i]);
69 
70 				if (rv < 0) { // some sort of read error occurred
71 					System.err.println("Port read error.");
72 					break;
73 				}
74 				continue;
75 			}
76 
77 			Thread.sleep(1000);
78 		}
79 		// ! [Interesting]
80 	}
81 
82 }