Hi @Pako887 ,
You need to write SPI drivers for the display. Are you using emWin? If yes, then you need to link the SPI drivers to emWin.
We have a code example for interfacing TFT display with PSoC6, and you can take inspiration from the same. Find the link here: PSoC 6 TFT Display Interface with EmWin Graphics Library.
I am also attaching SEGGER emWin Graphic Library (emWinGraphics) document here. It gives instructions on how to use emWin on PSoC devices for PSoC Creator software.
I've been trying all day to load the library but I couldn't do it it doesn't show me the new Graphic components added to the catalog. How can I do? Is there any example for Psoc4 that I can try to use already built?