Hi, I am new with STM32F429ZI, i tried touchgfx as per tutorial video in youtube, but touch screen showing full white only. I am doing something wrong , kindly share proper your ideas, document and video. please help me

i am using STM32 CubeIDE, I did basic things like gpio, i2c etc. I am trying to work in display, but i dont know how to start display. Kindly anyone help me, touchgfx configure things and step by step procedure .