LCD display with LTDC for STM32H7

[ardarda3537]

I'm trying to learn how to use the LCD display on the STM32H745I-DISCO board.
(I'm a beginner at coding, so please go easy on me!)

Right now, I'm just trying to display basic text on the screen, but nothing shows up, it's either all white or all black depending on the settings in the ltdc.c file.

I've tried different (and maybe even nonsense) functions to fix it, but nothing worked so far.

I couldn’t find many resources, especially for the STM32H7 series, so I’m feeling a bit stuck.

My goal for this project is to read data from the ADC and show it on the screen (like speed etc.), nothing too fancy.

If you have any advice or guidance, I’d be very eager to hear it!

[KDJEM.1]

Hello @ardarda3537 and welcome to the community;

I recommend referring to some available resources to start with LCD and get inspired to configure your own project:

- Introduction to LCD-TFT display controller (LTDC) on STM32 MCUs - Application note and precisely "7 LTDC application examples" section.

- How to set up the LTDC peripheral to interface with the display panel ATM0500D27-CT from AZ Displays - STMicroelectronics Community

- LTDC examples tested with STM32H745I-DISCO board: LTDC_Display_1Layer and LTDC_Display_2Layers

I hope this help you.

Thank you.

Kaouthar

[GaetanGodart]

Hello @ardarda3537 ,

The simplest way to control your Display is to sue TouchGFX Designer since you use a discovery board.
https://www.youtube.com/watch?v=OMeiG9jS-yk&list=PLnMKNibPkDnF9x-s1e-v9Wtvv-fB88VWA

If you want to do everything from scratch, look at this!:

• https://support.touchgfx.com/docs/development/board-bring-up/board-introduction
• https://support.touchgfx.com/docs/development/touchgfx-hal-development/touchgfx-al-development-introduction
• https://www.youtube.com/watch?v=SRQD8JMeg_k
• https://www.youtube.com/watch?v=suMytEyQTP4&list=PLfIJKC1ud8giOsk-C4BCOwSHtbXqTNb1W&index=2

Regards,