A GPS serial interrupt service routine that has an on the fly nmea parser. Works with a STM32F411RE and a Adafruit GPS logger.
Dependents: Bicycl_Computer_NUCLEO-F411RE Bicycl_Computer_NUCLEO-L476RG
Fork of GPS by
main.cpp
#include "mbed.h" #include "GPSISR.h" #define PIN_RX_GPS PA_12 //GPS Shield RX pin #define PIN_TX_GPS PA_11 //GPS Shield TX pin Serial pc(USBTX, USBRX); // Set up serial interrupe service handler for gps characters. GPS MyGPS(PIN_TX_GPS,PIN_RX_GPS, 9600); int main() { while (1) { if (MyGPS.dataready()) { MyGPS.read(); pc.printf("NMEA has valid data"); pc.printf("Sats : %d \n", MyGPS.buffer.satellites); pc.printf("%d-%d-%d\n", MyGPS.buffer.month, MyGPS.buffer.day, MyGPS.buffer.year); pc.printf("%d:%d:%d\n", MyGPS.buffer.hours, MyGPS.buffer.minutes, MyGPS.buffer.seconds); } else { pc.printf("NMEA has no valid data"); } } }
GPSISR.h
- Committer:
- trevieze
- Date:
- 2017-02-17
- Revision:
- 3:e64b8be9ce92
- Parent:
- 2:dbc6c0789611
- Child:
- 4:7240a18102a6
File content as of revision 3:e64b8be9ce92:
/* mbed EM-406 GPS Module Library * Copyright (c) 2008-2010, sford * * Permission is hereby granted, free of charge, to any person obtaining a copy * of this software and associated documentation files (the "Software"), to deal * in the Software without restriction, including without limitation the rights * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell * copies of the Software, and to permit persons to whom the Software is * furnished to do so, subject to the following conditions: * * The above copyright notice and this permission notice shall be included in * all copies or substantial portions of the Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN * THE SOFTWARE. */ #include "mbed.h" #ifndef MBED_GPS_H #define MBED_GPS_H /** A GPS interface for reading from a Globalsat EM-406 GPS Module */ class GPS { public: /** Create the GPS interface, connected to the specified serial port */ GPS(PinName tx, PinName rx, int Baud); //Peripheral Serial _gps; // Setup a serial interrupt function to transmit data void getline(); void Rx_interrupt(void); bool dataready(void); //void f1(a_struct& struct); //f1(a_struct s); // Reading struct that includes the data for each reading we take struct reading { float latitude; //Signed positive if N, negative if S float longitude; //Signed positive if E, negative if W uint8_t day; uint8_t month; uint8_t year; uint8_t hour; uint8_t minutes; float speed; float altitude; float bearing; int satellites; }; struct reading buffer; void read(void); char msg[256]; volatile char rx_in; bool interrupt; private: }; #endif