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Associate II
October 24, 2023
Solved

LTDC (RGB) to LVDS interface

  • October 24, 2023
  • 3 replies
  • 8505 views

Hello everyone,

I have Custom board that has STM32H7 controller.
I wanted to interface display module G070ACE-LH3 and i have RGB to LVDS  DS90C385AMT/NOPB.
As I am a beginner wanted using Stm32 LTDC interface to bring up the display.

Can anyone help me with that?
#LTDC to LVDS

This topic has been closed for replies.
Best answer by t.decker

Hi @Shashikant_Hiremath,

I have made some adapter PCBs for the STM32F769I-EVAL board and one of them also had the DS90C385 on it. Attached is the schematic. Check how your display expects the RGB & Sync data in the LVDS stream and connect the LTDC RGB outputs of your SMT32H7 accordingly to the TxIN0..TXIN27.

 

3 replies

t.deckerBest answer
Senior II
October 25, 2023

Hi @Shashikant_Hiremath,

I have made some adapter PCBs for the STM32F769I-EVAL board and one of them also had the DS90C385 on it. Attached is the schematic. Check how your display expects the RGB & Sync data in the LVDS stream and connect the LTDC RGB outputs of your SMT32H7 accordingly to the TxIN0..TXIN27.

 

Associate II
March 19, 2024

Hi, As i'm searching the same way for interfacing lvds display to stm32f769-disc0..is this schematics can be used for f7-disc0 or should be make changes in sch..??

kindly please, help me,,
thanks in advance

regards ,

jr _ mbed_ er

Associate II
October 27, 2023

Thank you very much @t.decker for providing the inputs.
Can you share me Display source code just to test display working?

Senior II
November 6, 2023

I don't have test code to share. I followed the application notes of Display/LTDC and example projects.

Start simple: Only LTDC without TouchGFX. Define Background color in CubeMX and if all your timing etc is correct, you will see the color on your screen. Then create a Framebuffer and draw some test pattern into it. When you see the pattern on the screen you are ready to start with TouchGFX.

Associate II
February 14, 2024

sorry for late reply ,
Now display is working ,adjusted LTDC settings.
Now i need to think how to get touchgfx up and running on this