Can not show Image in DSI video mode

[Zbobo.1]

(sorry for my bad English)

​

Hi, My project is base on STM32F469 ,LCD use DSI video mode.

Now I can show pixels in TouchGFX box , but can not show images.

​

Touchgfx project with images:​

display like this：​

touchgfx project with image&pixel：​

display like this:

​

the Images in touchgfx is seted as RGB565.

LCD controller is seted in RGB565 mode.

And DSI,LTDC,LTDC layer,DMA2D both are in RGB565.

​

Why do I have this effect?How can I fix it？

Thanks.

​

[MM..1]

I dont understand your image 2 and result you can show pixels.

As first dont use touchGFX and start your display config work in basic princips.

Run DSI testpatterns, check ltdc memory usw...

[Zbobo.1]

Hi MM..1 

I had checked my driver and DSI , LTDC setting, is okay.Use HAL_SDRAM_Read_16b() to write Touchgfx image generated xxxbpp.cpp can get correct display.But image in touchgfx project cannot display correctly.

[Romain DIELEMAN]

Have you tried putting the images in internal and then external memory ?

/Romain

[Zbobo.1]

Thanks everone. I found that qspiflash download FLM is not correct.When I erase flash it write 0x88 into it and touchgfx images always get 0x88...​

And my QSPI memory mapping mode is not setting correctly too.STM32F469-DISCO is use N25Q128A , my project is use W25Q128FV instead.

I wonder does ST provide this kind of norflash FLM to user?