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BMunk.1
Associate
April 18, 2022
Question

STM32H743I-EVAL + LCD(800x480)

  • April 18, 2022
  • 4 replies
  • 1928 views

Hi, I want to integrate an 24-bit parallel LCD(change from 640×480 to 800×480) with STM32H743I-EVAL board. But I am a beginner for this field. So I followed this video > https://www.youtube.com/watch?v=yiHjOH7zJP0.

What I have done is below:

  1. Created the folder using the sample template (STM32H743I EVAL) by TouchGFX Designer(V4.19.0)
  2. Open the STM32CubeMX file (V6.5.0)
  3. Changed PLL3 of Clock Configuartion from 32 to 24 to set 33.3MHz
  4. Changed LTDC values related to custom LCD
  5. The rest of the work was done exactly as shown in the video

However, the results are not good.

I'd really appreciate it if you could let me know what I'm doing wrong.

Please refer to the images below.

0693W00000LyDHiQAN.png 

0693W00000LyDHnQAN.png 

0693W00000LyDHsQAN.pngResult is:

0693W00000LyDI2QAN.jpg

This topic has been closed for replies.

4 replies

MM..1
Super User
April 18, 2022

Maybe two problems

  1. LCD mode other as need RGB
  2. FMC memory config fail

Start testing without TouchGFX only setup LTDC

BMunk.1
BMunk.1Author
Associate
April 19, 2022

I am not using Touchgfx, instead modified the LTDC part of the sample file a little and upload it, but it worked well.

0693W00000LyGYIQA3.png 

0693W00000LyGY3QAN.png 

0693W00000LyGQUQA3.jpg 

Tesla DeLorean
Guru
April 18, 2022

SDRAM working/configured?

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BMunk.1
BMunk.1Author
Associate
April 19, 2022

How can I make sure SDRAM is working properly? FMC config is:

0693W00000LyGaOQAV.png

0693W00000LyGaTQAV.png