Circle and Shape Widget not the correct color on the LCD

[psilvaggio]

The circles and shape widgets in my application do not display the correct color on my LCD, they all show as (looks like) pure white. They appear fine when run in the simulator. Box widget colors are fine, as are images and buttons.

Any clues on why colors appear fine in the simulator but not on the application LCD?

Edit: note this is on TouchGFX version 4.18.0

[Peter BENSCH]

Welcome, @psilvaggio​, to the community!

You didn't mention which hardware you're testing on: your own or a DISCOVERY from ST?

Regards

/Peter

[psilvaggio]

Sorry about that. This is my own hardware. STM32F429IIT6 with external RAM and 24-bit LCD

[Peter BENSCH]

OK, with your own hardware, of course, all components have to interact and be configured correctly. Since there are so many possibilities for a misconfiguration it will be difficult to discuss that here.

Have you already worked through the tutorials, e.g. the Hardware Selection and the Board Bring Up?

Maybe you find information in similar articles in the Knowledge Base, like e.g. this one?

Regards

/Peter

[psilvaggio]

I found a workaround for the black outline on Canvas widgets issue which resulted from switching to the XRGB8888 format. If I have a Box widget the size of the entire screen on top of everything else with alpha > 0 (I made it 1 so it didn't affect the look of the rest of the screen), the black outline problem went away and everything looks good. It would still be nice to see a little more explanation/documentation on why ARGB8888 doesn't support non-byte-write, but this is no longer a show-stopper issue.