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STM32H743I-EVAL + LCD(800x480)

BMunk.1
Associate II

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

4 REPLIES 4
MM..1
Chief II

Maybe two problems

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

Start testing without TouchGFX only setup LTDC

SDRAM working/configured?

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Up vote any posts that you find helpful, it shows what's working..

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 

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

0693W00000LyGaOQAV.png

0693W00000LyGaTQAV.png