/*
GPS test routine, based on serial passthrough from the Arduino standard examples
which was originally written by   by Erik Nyquist, kudos!
it wasn't working using 'serial' so I changed it to a non-reserved name and BINGO. :)
*/
HardwareSerial GPS(PA10,PB6); 

void setup() {
  Serial.begin(9600);
  GPS.begin(9600);
}

void loop() {
  if (Serial.available()) {      // If anything comes in Serial (USB),
    GPS.write(Serial.read());   // read it and send it out Serial1 (pins 0 & 1)
  }

  if (GPS.available()) {     // If anything comes in Serial1 (pins 0 & 1)
    Serial.write(GPS.read());   // read it and send it out Serial (USB)
  }
}