How to read Adafruit GPS Data with STM32?

I'm using a STM32 Nucleo-F334R8 board and a Ultimate GPS Breakout V3 from Adafruit.

What I'm trying to do is to read the GPS data with Putty on my computer using the serial communication.

At the end I want to get the GPS data on my F334R8 board and then send it to a RaspberryPi 3 with the serial communication. I'm having a lot of trouble so far, I'm coding on Mbed Compiler Online and every time I have the feeling to find a solution it gets worse.

Does anyone have a solution for me?

EDIT : Alright thank you! I'm also trying to send my received data to a Raspberry Pi 3 through serial communication. I have connected the D15 and D14 to the TX and RX of the Raspberry but when i'm using :

#include "mbed.h"
#include "MTK3339.h"

static int waitData = 0;
static MTK3339 gps(D8, D2);
static float latitude = 0;
static float longitude = 0;

Serial rasp(D15, D14); // D15 = RX, D14 = TX

static void dataAvailable() {
    waitData |= gps.getAvailableDataType();
}

int main(void) {

    gps.start(&dataAvailable, (MTK3339::NmeaGga|MTK3339::NmeaVtg));

    while(1) {
        while(waitData == 0);

        if ((waitData & MTK3339::NmeaGga) != 0) {
            waitData &= ~(MTK3339::NmeaGga);
            latitude = gps.getLatitudeAsDegrees();
            longitude = gps.getLongitudeAsDegrees();
            //printf("%f,%f\n", gps.getLatitudeAsDegrees(), gps.getLongitudeAsDegrees());
            //printf("lat = %f, long = %f",latitude, longitude); 
            rasp.printf("%f\n", latitude);           
        }  

        waitData &= (MTK3339::NmeaGga|MTK3339::NmeaVtg);
    }
}

But it's not working. I'm not receiving anything on the Raspberry console. Could someone help please?

Solution

Here's an example application which reads data of the GPS chip that's on the Adafruit board: https://os.mbed.com/users/embeddedartists/code/app_gps/

Hook the GPS chip to the F334R8 board over UART on pins D8/D2 (D0/D1 are not usable for UART on that board as it's used for communication with the computer). Then change line 5 in main.cpp to:

static MTK3339 gps(D8, D2);