GFX example

Hello

I am testing the nrf_GFX example with ST7735 

but the example has a ST7735 128x 160 and i have  St7735 80 x 160, I Change de dimentions in sdk_config.h

in the main I changed this 

I changed nrf_lcd_ili9341 to nrf_lcd_st7735

but dont works , i am thinking is the circuit connections or in the program, could you help me?, is there a secret? , i thought is change the lcd dimensions only

nrf52                      LCD

p1.6 mosi.............. sda

p1.0 clk................. sclk

p0.3 CD...............   cd

?          ................  res

?    ........................  cs

?      .....................  blk          

thanks and regards

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