What is the way do store a framebuffer into a LCD Display Controller SSD1963

[MLair.1]

Hello everyone,

I have a Mikromedia 7 Capacitive board, which includes a STM32F746ZG, a LCD Display Controller SSD1963 and a 7" touch screen, this is how it looks :

I'd like to store framebuffers made by my MCU into the SSD1963 and then it displays on the screen.

I've made the SSD1963 driver which can initializes and transmits data to the SSD1963 (it's supposed to work).

Now i created my target with single Buffer strategy on TouchGFXGenerator : 

Obviously, the IDE stores the framebuffer in internal RAM. Which function have I to modify in order to store the pixels in the SSD1963 ?

If I wasn't clear, I could explain in details.

Thanks, Maël