2025-11-18 12:14 AM
I am currently working on a project using the STM32F401RE Nucleo board interfaced with a 3.5-inch TFT SPI display (ILI9488 driver). I am facing an issue where the display does not show any output, even though the backlight turns on and the code uploads successfully without errors.
I have already checked the SPI connections, power supply, and display initialization code, but the screen still remains blank. I would like to kindly request your guidance or any reference materials/libraries that can help me correctly configure and test the display with STM32CubeIDE.
If possible, I would appreciate help with:
Correct SPI configuration for ILI9488
Required GPIO pin mapping (DC, RESET, CS, etc.)
A working example code or initialization sequence
Any known issues or recommended libraries for STM32F4 + ILI9488
Your support will greatly help me continue my project. Thank you