Library for the EM-406 GPS module
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GPS.h
00001 /* mbed EM-406 GPS Module Library 00002 * Copyright (c) 2008-2010, sford 00003 * 00004 * Permission is hereby granted, free of charge, to any person obtaining a copy 00005 * of this software and associated documentation files (the "Software"), to deal 00006 * in the Software without restriction, including without limitation the rights 00007 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell 00008 * copies of the Software, and to permit persons to whom the Software is 00009 * furnished to do so, subject to the following conditions: 00010 * 00011 * The above copyright notice and this permission notice shall be included in 00012 * all copies or substantial portions of the Software. 00013 * 00014 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 00015 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 00016 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE 00017 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 00018 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, 00019 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN 00020 * THE SOFTWARE. 00021 */ 00022 00023 #include "mbed.h" 00024 00025 #ifndef MBED_GPS_H 00026 #define MBED_GPS_H 00027 00028 /** A GPS interface for reading from a Globalsat EM-406 GPS Module */ 00029 class GPS { 00030 public: 00031 00032 /** Create the GPS interface, connected to the specified serial port 00033 */ 00034 GPS(PinName tx, PinName rx); 00035 00036 /** Sample the incoming GPS data, returning whether there is a lock 00037 * 00038 * @return 1 if there was a lock when the sample was taken (and therefore .longitude and .latitude are valid), else 0 00039 */ 00040 int sample(); 00041 00042 /** The longitude (call sample() to set) */ 00043 float longitude; 00044 00045 /** The latitude (call sample() to set) */ 00046 float latitude; 00047 00048 private: 00049 float trunc(float v); 00050 void getline(); 00051 00052 Serial _gps; 00053 char msg[256]; 00054 00055 }; 00056 00057 #endif
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