Wio GPS Board and Arduino Due

Hello,



I am trying to get data from an Arduino Due to a Wio GPS board. I am using the following code:

[code]
#include <SoftwareSerial.h>
SoftwareSerial ser_serial(A0,A1);

GPSTracker gpsTracker = GPSTracker();

void setup() {
pinMode(12, OUTPUT);
digitalWrite(12, HIGH);
ser_serial.begin(115200);
SerialUSB.begin(115200);
}
.
.
.
serialByte = ser_serial.read();
.
.
.
[/code]

My problem is that I receive the following message on the serial monitor: MAL POWER DOWN

I have connected the A0, A1 pins to TX, RX of the Due and the related grounds.

What am I doing wrong?

Any suggestions?