Gustavo Ramirez
ESTE PROGRAMA TOMA UNA CADENA DE GPS NEMEA Y CREA LA CADENA QUE EN GOOGLE MAPS SE ABRE EL MAPA INDICANDO LA GEOLOCALIZACION lA LIBRERIA GPS, FUE MODIFICADA EN LA ESTRUCUTURA DE DATOS, PARA RECONOCER LA VARIABLE (LOCK)DEL GPS QUE INDICA SI LOS DATOS SON ACEPTABLES EL PROGRAMA SE PRUEBA CON EL GPS VIRTUAL DE PROTEUS Y SE INYECTAN LOS DATOS A UNA FRDMKL25Z ATRAVES DE UN DONGLE QUE SE VINCULA DE FORMA LOGICA AL COMPIM DEL PROTEUS
Fork of
GPS_G
by 
joshema 216
ESTE PROGRAMA TOMA UNA CADENA DE GPS NEMEA Y CREA LA CADENA QUE EN GOOGLE MAPS, SE ABRE EL MAPA INDICANDO LA GEOLOCALIZACION LA LIBRERIA GPS, FUE MODIFICADA EN LA ESTRUCUTURA DE DATOS, PARA RECONOCER LA VARIABLE (LOCK)DEL GPS QUE INDICA SI LOS DATOS SON ACEPTABLES. EL PROGRAMA SE PRUEBA CON EL GPS VIRTUAL DE PROTEUS Y SE INYECTAN LOS DATOS A UNA FRDMKL25Z ATRAVES DE UN DONGLE QUE SE VINCULA DE FORMA LÓGICA AL COMPIM DEL PROTEUS. LAS CONEXIONES LA MUESTRA LA FIGURA DE ARRIBA, SI SE DESEA INCORPORAR A UN RASTREADOR SATELITAL. EL LED VERDE SE ENCIENDE SOLO SI LOS DATOS SON ACEPTABLES, LAMENTABLEMENTE EL GPS DE PROTEUS NO MODIFICA LA CADENA, SI SE CONFIGURAN MENOS DE TRES SATÉLITES EN VISTA.
LA CADENA RESULTANTE AL ESQUEMA ES LA SIGUIENTE. EL CENTRO DEL ESTADIO ATANACIO GIRARDOT, EN LA CIUDAD DE MEDELLÍN - COLOMBIA.
http://maps.google.com/maps?q=6.256791,-75.590302
GPS.cpp@0:15611c7938a3, 2010-06-08 (annotated)
- Committer:
- simon
- Date:
- Tue Jun 08 14:10:27 2010 +0000
- Revision:
- 0:15611c7938a3
- Child:
- 1:df8295aa2b2b
Who changed what in which revision?
| User | Revision | Line number | New contents of line |
|---|---|---|---|
| simon | 0:15611c7938a3 | 1 | /* mbed EM-406 GPS Module Library |
| simon | 0:15611c7938a3 | 2 | * Copyright (c) 2008-2010, sford |
| simon | 0:15611c7938a3 | 3 | * |
| simon | 0:15611c7938a3 | 4 | * Permission is hereby granted, free of charge, to any person obtaining a copy |
| simon | 0:15611c7938a3 | 5 | * of this software and associated documentation files (the "Software"), to deal |
| simon | 0:15611c7938a3 | 6 | * in the Software without restriction, including without limitation the rights |
| simon | 0:15611c7938a3 | 7 | * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell |
| simon | 0:15611c7938a3 | 8 | * copies of the Software, and to permit persons to whom the Software is |
| simon | 0:15611c7938a3 | 9 | * furnished to do so, subject to the following conditions: |
| simon | 0:15611c7938a3 | 10 | * |
| simon | 0:15611c7938a3 | 11 | * The above copyright notice and this permission notice shall be included in |
| simon | 0:15611c7938a3 | 12 | * all copies or substantial portions of the Software. |
| simon | 0:15611c7938a3 | 13 | * |
| simon | 0:15611c7938a3 | 14 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
| simon | 0:15611c7938a3 | 15 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
| simon | 0:15611c7938a3 | 16 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE |
| simon | 0:15611c7938a3 | 17 | * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
| simon | 0:15611c7938a3 | 18 | * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, |
| simon | 0:15611c7938a3 | 19 | * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN |
| simon | 0:15611c7938a3 | 20 | * THE SOFTWARE. |
| simon | 0:15611c7938a3 | 21 | */ |
| simon | 0:15611c7938a3 | 22 | |
| simon | 0:15611c7938a3 | 23 | #include "GPS.h" |
| simon | 0:15611c7938a3 | 24 | |
| simon | 0:15611c7938a3 | 25 | GPS::GPS(PinName tx, PinName rx) : _gps(tx, rx) { |
| simon | 0:15611c7938a3 | 26 | _gps.baud(4800); |
| simon | 0:15611c7938a3 | 27 | longitude = 0.0; |
| simon | 0:15611c7938a3 | 28 | latitude = 0.0; |
| simon | 0:15611c7938a3 | 29 | } |
| simon | 0:15611c7938a3 | 30 | |
| simon | 0:15611c7938a3 | 31 | int GPS::sample() { |
| simon | 0:15611c7938a3 | 32 | float time; |
| simon | 0:15611c7938a3 | 33 | char ns, ew; |
| simon | 0:15611c7938a3 | 34 | int lock; |
| simon | 0:15611c7938a3 | 35 | |
| simon | 0:15611c7938a3 | 36 | while(1) { |
| simon | 0:15611c7938a3 | 37 | getline(); |
| simon | 0:15611c7938a3 | 38 | |
| simon | 0:15611c7938a3 | 39 | // Check if it is a GPGGA msg (matches both locked and non-locked msg) |
| simon | 0:15611c7938a3 | 40 | if(sscanf(msg, "GPGGA,%f,%f,%c,%f,%c,%d", &time, &latitude, &ns, &longitude, &ew, &lock) >= 1) { |
| simon | 0:15611c7938a3 | 41 | if(!lock) { |
| simon | 0:15611c7938a3 | 42 | longitude = 0.0; |
| simon | 0:15611c7938a3 | 43 | latitude = 0.0; |
| simon | 0:15611c7938a3 | 44 | return 0; |
| simon | 0:15611c7938a3 | 45 | } else { |
| simon | 0:15611c7938a3 | 46 | if(ns == 'S') { latitude *= -1.0; } |
| simon | 0:15611c7938a3 | 47 | if(ew == 'W') { longitude *= -1.0; } |
| simon | 0:15611c7938a3 | 48 | float degrees = trunc(latitude / 100.0f); |
| simon | 0:15611c7938a3 | 49 | float minutes = latitude - (degrees * 100.0f); |
| simon | 0:15611c7938a3 | 50 | latitude = degrees + minutes / 60.0f; |
| simon | 0:15611c7938a3 | 51 | degrees = trunc(longitude / 100.0f * 0.01f); |
| simon | 0:15611c7938a3 | 52 | minutes = longitude - (degrees * 100.0f); |
| simon | 0:15611c7938a3 | 53 | longitude = degrees + minutes / 60.0f; |
| simon | 0:15611c7938a3 | 54 | return 1; |
| simon | 0:15611c7938a3 | 55 | } |
| simon | 0:15611c7938a3 | 56 | } |
| simon | 0:15611c7938a3 | 57 | } |
| simon | 0:15611c7938a3 | 58 | } |
| simon | 0:15611c7938a3 | 59 | |
| simon | 0:15611c7938a3 | 60 | float GPS::trunc(float v) { |
| simon | 0:15611c7938a3 | 61 | if(v < 0.0) { |
| simon | 0:15611c7938a3 | 62 | v*= -1.0; |
| simon | 0:15611c7938a3 | 63 | v = floor(v); |
| simon | 0:15611c7938a3 | 64 | v*=-1.0; |
| simon | 0:15611c7938a3 | 65 | } else { |
| simon | 0:15611c7938a3 | 66 | v = floor(v); |
| simon | 0:15611c7938a3 | 67 | } |
| simon | 0:15611c7938a3 | 68 | return v; |
| simon | 0:15611c7938a3 | 69 | } |
| simon | 0:15611c7938a3 | 70 | |
| simon | 0:15611c7938a3 | 71 | void GPS::getline() { |
| simon | 0:15611c7938a3 | 72 | while(_gps.getc() != '$'); // wait for the start of a line |
| simon | 0:15611c7938a3 | 73 | for(int i=0; i<256; i++) { |
| simon | 0:15611c7938a3 | 74 | msg[i] = _gps.getc(); |
| simon | 0:15611c7938a3 | 75 | if(msg[i] == '\r') { |
| simon | 0:15611c7938a3 | 76 | msg[i] = 0; |
| simon | 0:15611c7938a3 | 77 | return; |
| simon | 0:15611c7938a3 | 78 | } |
| simon | 0:15611c7938a3 | 79 | } |
| simon | 0:15611c7938a3 | 80 | error("Overflowed message limit"); |
| simon | 0:15611c7938a3 | 81 | } |