Revision 2:7166ad3f9a2a, committed 2016-12-22

Comitter:

reanimationxp

Date:

Thu Dec 22 05:55:53 2016 +0000

Parent:

1:b100ab44119d

Child:

3:e38a115af1dd

Commit message:

adding jhey's new new code. again. -reanimationxp

Changed in this revision

--- a/main.cpp	Thu Dec 22 05:52:09 2016 +0000
+++ b/main.cpp	Thu Dec 22 05:55:53 2016 +0000
@@ -1,3 +1,70 @@
+//gps.cpp
+//for use with Adafruit Ultimate GPS
+//Reads in and parses GPS data
+
+#include "mbed.h"
+#include "MBed_Adafruit_GPS.h"
+
+Serial * gps_Serial;
+Serial pc (USBTX, USBRX);
+
+int main() {
+   
+   pc.baud(115200); //sets virtual COM serial communication to high rate; this is to allow more time to be spent on GPS retrieval
+   
+   gps_Serial = new Serial(PTC17,PTC16); //serial object for use w/ GPS
+   Adafruit_GPS myGPS(gps_Serial); //object of Adafruit's GPS class
+   char c; //when read via Adafruit_GPS::read(), the class returns single character stored here
+   Timer refresh_Timer; //sets up a timer for use in loop; how often do we print GPS info?
+   const int refresh_Time = 2000; //refresh time in ms
+   
+   myGPS.begin(9600);  //sets baud rate for GPS communication; note this may be changed via Adafruit_GPS::sendCommand(char *)
+                       //a list of GPS commands is available at http://www.adafruit.com/datasheets/PMTK_A08.pdf
+   
+   myGPS.sendCommand(PMTK_SET_NMEA_OUTPUT_RMCGGA); //these commands are defined in MBed_Adafruit_GPS.h; a link is provided there for command creation
+   myGPS.sendCommand(PMTK_SET_NMEA_UPDATE_1HZ);
+   myGPS.sendCommand(PGCMD_ANTENNA);
+   
+   pc.printf("Connection established at 115200 baud...\n");
+   
+   wait(1);
+   
+   refresh_Timer.start();  //starts the clock on the timer
+   
+   while(true){
+       c = myGPS.read();   //queries the GPS
+       
+       if (c) { pc.printf("%c", c); } //this line will echo the GPS data if not paused
+       
+       //check if we recieved a new message from GPS, if so, attempt to parse it,
+       if ( myGPS.newNMEAreceived() ) {
+           if ( !myGPS.parse(myGPS.lastNMEA()) ) {
+               continue;   
+           }    
+       }
+       
+       //check if enough time has passed to warrant printing GPS info to screen
+       //note if refresh_Time is too low or pc.baud is too low, GPS data may be lost during printing
+       if (refresh_Timer.read_ms() >= refresh_Time) {
+           refresh_Timer.reset();
+           pc.printf("Time: %d:%d:%d.%u\n", myGPS.hour, myGPS.minute, myGPS.seconds, myGPS.milliseconds);
+           pc.printf("Date: %d/%d/20%d\n", myGPS.day, myGPS.month, myGPS.year);
+           pc.printf("Fix: %d\n", (int) myGPS.fix);
+           pc.printf("Quality: %d\n", (int) myGPS.fixquality);
+           if (myGPS.fix) {
+               pc.printf("Location: %5.2f%c, %5.2f%c\n", myGPS.latitude, myGPS.lat, myGPS.longitude, myGPS.lon);
+               pc.printf("Speed: %5.2f knots\n", myGPS.speed);
+               pc.printf("Angle: %5.2f\n", myGPS.angle);
+               pc.printf("Altitude: %5.2f\n", myGPS.altitude);
+               pc.printf("Satellites: %d\n", myGPS.satellites);
+           }
+       }
+   }
+}
+
+
+/*
+
 //gps.cpp
 //for use with Adafruit Ultimate GPS
 //Reads in and parses GPS data
@@ -61,6 +128,9 @@
        }
    }
 }
+/*
+
+
 
 /*