I using STM32H743BIT6 and 7 inch display.
if i enable dual buffer, #define EW_USE_DOUBLE_BUFFER 1
then after very long time screen displayed
if i disable dual buffer, #define EW_USE_DOUBLE_BUFFER 0
display character and picture very slowly
SDRAM or something is problem, but not sure, I don't know.
I want to know dual buffer enable/diable.