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JLee.00000
Associate III
February 22, 2022
Question

How to do 800*480 LTDC Sync

  • February 22, 2022
  • 1 reply
  • 1185 views

I want to set it to LTDC and use the color keying function in STM32H7, but I had no choice but to use it custom mode.

When I made the project with TGFX, it was custom setting.

The strange thing is that the pixel width and height of LTDC and TGFX are different, but they work normally.

However, if the pixel width of the LTDC is changed to 800 in the attached custom mode image, the LCD display is broken and output.

I use LCD and STM32H747-DISCO with 800*480 resolution.

Please tell me how to set up LTDC Sync.

referred document :

LTDC chapter in datasheet

Information

App note

ps. If anyone knows, I would appreciate it if you could let me know the code, CubeMX, or TGFX settings for color keying.

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1 reply

ktrofimo
Senior III
February 22, 2022

Check you buffer start addresses.​