STM32U575 and 2.3" TFT with ILI9341 Driver, wrong colors

[Sany]

Hello,

I have a STM32U575 and a 2.3" TFT with ILI9341, i use TouchGFX, thats works fine, after my GPDMA1 is correctly configured. (I Hope my GPMDA1 is correctly configured, and it's not a problem with the Transmitting DMA)

Now i have 3 Screens, (Red, Green, Blue) but i have the problem, the colors on my display was wrong.

"Red = Magenta","Green=Green","Blue=Black"

The TFT is a RGB565, the Driver uses RGB565, the TFT is in the 16-Bit mode, and my SPI on 8-Bit mode.
How must i change, to show the correct colors on my display?

I found a thread in this forum, but there is no solution, only a hint "swap the bytes it's a problem between 16 bit display and 8 bit SPI...."..

my code i use is attached.

Thanks daniel

[Andrew Neil]

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@Sany wrote:

I found a thread in this forum

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Please give a link.

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@Sany wrote:

but there is no solution, only a hint "swap the bytes it's a problem between 16 bit display and 8 bit SPI...."..

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So did you try that?

PS:

Don't forget to provide the link to here in your previous thread

[WENDA]

The same problem we encountered. My solution is to access ILI9341 controller with a command 0x21 which is used to turn display inversion on, according to my datasheet given.

It is supposed to modify your initialization method ILI9341_Init() in source file ili9341.c.