GPS PIN CYD 3.5"

I just flashing  bruce firm on CYD 3.5" capacitive, unfoturtunately GPS not working ..just on status ..WAITING

the wiring for my CYD based on  CYD-2432S028
; SERIAL (GPS) dedicated pins
	-DSERIAL_TX=1
	-DSERIAL_RX=3
	-DGPS_SERIAL_TX=SERIAL_TX
	-DGPS_SERIAL_RX=SERIAL_RX

but when I looked at bruce WIKI 
CYD - GPS connection:
RX  	IO27
TX    IO22

so  which is the correct one??
