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Waveform display on STM32F429I-EVAL LCD

Embedded_Andy
Associate III

‎2025-09-29 8:55 PM - last edited on ‎2025-09-30 2:03 AM by

Hello everyone, 

I am trying to use STM32F429I eval board to do some basic signal processing labs, like show a sinewave on the LCD display, and fft spectrum on the display too.
But it is not easy to manually configure the LCD display to show some custom waveform. 

It looks like we need to configure FMC -> LTDC -> LCD...

Since there is only one LCD on the board, I assume I need to enable LCD1... 
Then, how am I supposed to configure FMC in the first place ?

Thank you.

 

Embedded_Andy_1-1759203619208.png

 

 

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mƎALLEm
ST Employee

‎2025-09-30 1:58 AM - edited ‎2025-09-30 3:41 AM

Hello

I don’t see the purpose of the FMC? to drive the lcd? Unless it will be used for frame buffer, but to drive the lcd itself, there is no link to the lcd usage here.

Try to inspire from these exemples you need to configure only the LTDC interface: https://github.com/STMicroelectronics/STM32CubeF4/tree/master/Projects/STM324x9I_EVAL/Examples/LTDC

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