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Dd.21
Dd.21
Associate III
Dec 30, 2020 2:35 AM UTC
Solved

Hello, i hava got a problem with full scrren size controls. Sometimes, there will be a flash line end of the controls. What i suppose to do with this problem?

Box

0693W000006H8vNQAS.jpg 

Container0693W000006H8vIQAS.jpgButton0693W000006H8vDQAS.jpg

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MM..1
MM..1Best answer
Super User
Dec 31, 2020 2:08 PM UTC

Only RAM is smaller, because when framebuffer start on 0x20048000

RAM must end here.

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17 replies

MM..1
MM..1
Super User
Dec 30, 2020 9:55 AM UTC

Here is more possible fails. LTDC framebuffer error in config, Porch data for LCD . Source images converting problem when 565 used...

Dd.21
Dd.21Author
Associate III
Dec 30, 2020 11:27 AM UTC

Thank you for your answer. Sorry, but this really puzzles me. if it is a framebuffer or porch data problem, shouldn't all similar scenarios go wrong? And, I used RGB888 configuration in TouchGFX Designer.

MM..1
MM..1
Super User
Dec 30, 2020 11:35 AM UTC

As i write source images format no screen, then when you use png 565 for screen 888. But you have this on color box too then format isnt source.

Have your LCD internal framebuffer or you use video mode? single or double buffer?...? Get full info about your config help solve your trouble...

Dd.21
Dd.21Author
Associate III
Dec 31, 2020 2:04 AM UTC

0693W000006HEuaQAG.pngThis is my LTDC init code. The problem is not always here. Once this problem occurs next to a control that has had a problem, then all the control that has the problem will have this problem again. Is it possible that something is wrong with the screen itself？

MM..1
MM..1
Super User
Dec 31, 2020 6:34 AM UTC

320x360x3=345600 and your FBStartAddr is 300k in SRAM , you dont get info how STM you use, Where is your FB ???

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