Integrating Parallel RGB LCD with STM32 controller

[KM L.1]

As we have Parallel RGB LCD and we tried integrating with STM32H743 controller and using touchGFX we are trying to display the image but nothing is displaying on the LCD so what may be the issue?

[KM L.1]

I looked into GPIO configuration and it's correct.. ​

Then I will look into this framebuffer address .

Thank You​

[KM L.1]

Is that possible to change the RGB configuration to BGR in STM32cubeMX or touchGFX?

[MM..1]

No i mean only in your code , when your display have too config interface connected SPI or I2C, you send some commands and set this.

[KM L.1]

Ok but I'm not configuring anything using SPI or I2C.

​How can I check the framebuffers in stm32 cubeide??

[Martin KJELDSEN]

There should be a memory window where you can just point to the address of the framebuffer you're interested in and look at the raw data.

[KM L.1]

I cross verified the LTDC GPIO configuration also.

if i give(0, 255, 255) - Red color is displaying on lcd but from touchgfx it is (255, 0, 0).

Can you please look into this and let me know if any configuration is wrong. I'm struggling from two days .

Thank you

[MM..1]

Your project is configured to 16bit touchGFX framebuff this equal to RGB565. You need understand how this work, in memory dont exist 255 0 0.

And read this https://community.st.com/s/question/0D50X0000C9dxj6SQA/how-to-change-touchgfx-framebuffer-to-big-endian