Teensy 3.2 and Adafruit_GPS Library incompatibility

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erekAda
 
Posts: 2
Joined: Wed Oct 14, 2015 11:00 pm

Teensy 3.2 and Adafruit_GPS Library incompatibility

Post by erekAda »

I am attempting to use the Adafruit_GPS (Ultimate GPS+Data Logger Shield) with a Teensy 3.2, but I am experiencing an issue

Code: Select all

// Test code for Adafruit GPS modules using MTK3329/MTK3339 driver
//
// This code shows how to listen to the GPS module in an interrupt
// which allows the program to have more 'freedom' - just parse
// when a new NMEA sentence is available! Then access data when
// desired.
//
// Tested and works great with the Adafruit Ultimate GPS module
// using MTK33x9 chipset
//    ------> http://www.adafruit.com/products/746
// Pick one up today at the Adafruit electronics shop 
// and help support open source hardware & software! -ada

#include <Adafruit_GPS.h>
#include <SoftwareSerial.h>


// If you're using a GPS module:
// Connect the GPS Power pin to 5V
// Connect the GPS Ground pin to ground
// If using software serial (sketch example default):
//   Connect the GPS TX (transmit) pin to Digital 3
//   Connect the GPS RX (receive) pin to Digital 2
// If using hardware serial (e.g. Arduino Mega):
//   Connect the GPS TX (transmit) pin to Arduino RX1, RX2 or RX3
//   Connect the GPS RX (receive) pin to matching TX1, TX2 or TX3

// If you're using the Adafruit GPS shield, change 
// SoftwareSerial mySerial(3, 2); -> SoftwareSerial mySerial(8, 7);
// and make sure the switch is set to SoftSerial

// If using software serial, keep these lines enabled
// (you can change the pin numbers to match your wiring):
SoftwareSerial mySerial;

//Adafruit_GPS GPS(&mySerial);
// If using hardware serial (e.g. Arduino Mega), comment
// out the above six lines and enable this line instead:
Adafruit_GPS GPS(&mySerial);


// Set GPSECHO to 'false' to turn off echoing the GPS data to the Serial console
// Set to 'true' if you want to debug and listen to the raw GPS sentences. 
#define GPSECHO  true

// this keeps track of whether we're using the interrupt
// off by default!
boolean usingInterrupt = false;
void useInterrupt(boolean); // Func prototype keeps Arduino 0023 happy

void setup()  
{

  // connect at 115200 so we can read the GPS fast enough and echo without dropping chars
  // also spit it out
  Serial.begin(115200);
  //Serial.println("Adafruit GPS library basic test!");

  // 9600 NMEA is the default baud rate for Adafruit MTK GPS's- some use 4800
  GPS.begin(9600);

  // uncomment this line to turn on RMC (recommended minimum) and GGA (fix data) including altitude
  GPS.sendCommand(PMTK_SET_NMEA_OUTPUT_RMCGGA);
  // uncomment this line to turn on only the "minimum recommended" data
  //GPS.sendCommand(PMTK_SET_NMEA_OUTPUT_RMCONLY);
  // For parsing data, we don't suggest using anything but either RMC only or RMC+GGA since
  // the parser doesn't care about other sentences at this time

  // Set the update rate
  GPS.sendCommand(PMTK_SET_NMEA_UPDATE_1HZ);   // 1 Hz update rate
  // For the parsing code to work nicely and have time to sort thru the data, and
  // print it out we don't suggest using anything higher than 1 Hz

  // Request updates on antenna status, comment out to keep quiet
  GPS.sendCommand(PGCMD_ANTENNA);

  // the nice thing about this code is you can have a timer0 interrupt go off
  // every 1 millisecond, and read data from the GPS for you. that makes the
  // loop code a heck of a lot easier!
  //useInterrupt(true);

  delay(1000);
  // Ask for firmware version
  Serial.println(PMTK_Q_RELEASE);
}


uint32_t timer = millis();
void loop()                     // run over and over again
{


  // in case you are not using the interrupt above, you'll
  // need to 'hand query' the GPS, not suggested :(
  if (! usingInterrupt) {
    // read data from the GPS in the 'main loop'
    char c = GPS.read();
    // if you want to debug, this is a good time to do it!
    if (GPSECHO)
      if (c) Serial.print(c);
  }

  // if a sentence is received, we can check the checksum, parse it...
  if (GPS.newNMEAreceived()) {
    // a tricky thing here is if we print the NMEA sentence, or data
    // we end up not listening and catching other sentences! 
    // so be very wary if using OUTPUT_ALLDATA and trytng to print out data
    //Serial.println(GPS.lastNMEA());   // this also sets the newNMEAreceived() flag to false

    if (!GPS.parse(GPS.lastNMEA()))   // this also sets the newNMEAreceived() flag to false
      return;  // we can fail to parse a sentence in which case we should just wait for another
  }

  // if millis() or timer wraps around, we'll just reset it
  if (timer > millis())  timer = millis();

  // approximately every 2 seconds or so, print out the current stats
  if (millis() - timer > 1000) { 
    timer = millis(); // reset the timer


    Serial.print("\nTime: ");
    Serial.print(GPS.hour, DEC); 
    Serial.print(':');
    Serial.print(GPS.minute, DEC); 
    Serial.print(':');
    Serial.print(GPS.seconds, DEC); 
    Serial.print('.');
    Serial.println(GPS.milliseconds);
    Serial.print("Date: ");
    Serial.print(GPS.day, DEC); 
    Serial.print('/');
    Serial.print(GPS.month, DEC); 
    Serial.print("/20");
    Serial.println(GPS.year, DEC);
    Serial.print("Fix: "); 
    Serial.print((int)GPS.fix);
    Serial.print(" quality: "); 
    Serial.println((int)GPS.fixquality); 
    if (GPS.fix) {
      Serial.print("Location: ");
      Serial.print(GPS.latitude, 4); 
      Serial.print(GPS.lat);
      Serial.print(", "); 
      Serial.print(GPS.longitude, 4); 
      Serial.println(GPS.lon);

      Serial.print("Speed (MPH): "); 
      Serial.println(GPS.speed);
      Serial.print("Angle: "); 
      Serial.println(GPS.angle);
      Serial.print("Altitude (Ft): "); 
      Serial.println(GPS.altitude);
      Serial.print("Satellites: "); 
      Serial.println((int)GPS.satellites);

    }  
  }
}

sketch_oct20a:39: error: no matching function for call to 'Adafruit_GPS::Adafruit_GPS(SoftwareSerial*)'
sketch_oct20a.ino:39:27: note: candidates are:
In file included from sketch_oct20a.ino:14:0:
C:\Program Files (x86)\Arduino\libraries\Adafruit-GPS-Library-master/Adafruit_GPS.h:111:3: note: Adafruit_GPS::Adafruit_GPS(HardwareSerial*)
Adafruit_GPS(HardwareSerial *ser); // Constructor when using HardwareSerial
^
C:\Program Files (x86)\Arduino\libraries\Adafruit-GPS-Library-master/Adafruit_GPS.h:111:3: note: no known conversion for argument 1 from 'SoftwareSerial*' to 'HardwareSerial*'
C:\Program Files (x86)\Arduino\libraries\Adafruit-GPS-Library-master/Adafruit_GPS.h:100:7: note: constexpr Adafruit_GPS::Adafruit_GPS(const Adafruit_GPS&)
class Adafruit_GPS {
^
C:\Program Files (x86)\Arduino\libraries\Adafruit-GPS-Library-master/Adafruit_GPS.h:100:7: note: no known conversion for argument 1 from 'SoftwareSerial*' to 'const Adafruit_GPS&'
C:\Program Files (x86)\Arduino\libraries\Adafruit-GPS-Library-master/Adafruit_GPS.h:100:7: note: constexpr Adafruit_GPS::Adafruit_GPS(Adafruit_GPS&&)
C:\Program Files (x86)\Arduino\libraries\Adafruit-GPS-Library-master/Adafruit_GPS.h:100:7: note: no known conversion for argument 1 from 'SoftwareSerial*' to 'Adafruit_GPS&&'
no matching function for call to 'Adafruit_GPS::Adafruit_GPS(SoftwareSerial*)'


this error seems to be around this :

Code: Select all

#ifdef __AVR__
  #if ARDUINO >= 100 
    Adafruit_GPS(AltSoftSerial *ser); // Constructor when using AltSoftSerial
  #else
    Adafruit_GPS(NewSoftSerial  *ser); // Constructor when using NewSoftSerial
  #endif
#endif
  Adafruit_GPS(HardwareSerial *ser); // Constructor when using HardwareSerial
is there anything we can do to port this library?

User avatar
adafruit_support_mike
 
Posts: 67446
Joined: Thu Feb 11, 2010 2:51 pm

Re: Teensy 3.2 and Adafruit_GPS Library incompatibility

Post by adafruit_support_mike »

If you're using a Teensy, you'll be better off using Paul's TinyGPS library:

https://www.pjrc.com/teensy/td_libs_TinyGPS.html

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