How too hook up gps on uart/gpio on the raspberry pi 3b?

[LightBridge16]

Hi,

I’m struggling to make gps working on the raspberry pi 3b connected on the gpio port.

gpio pint used 5V/3V GND pin 8&10
Gps module Ublox 6M v002 uart.
addon CSB502SSD head.
|-> ds1307 rtc clock, PL011, wifi, I2C.

http://www.pi2design.com/uploads/4/8/5/3/48531975/csb502ssd_hw_ref_manual_p3b.pdf