After migrating to the Embedded Wizard, the screen looks a little red.

Question

Hi.

I was previously using Embedded Wizard 11 to display the screen on a custom board.
It worked very well, and the screen looked great. Then, this time, I took on the task of migrating the project to Embedded Wizard 14.

 

1. Changes the platform package

2. Changes 'ewconfig.h', 'ewdef.h', 'ewmain.c/h' files

3. Changes some TargetSpecific files (ew_bsp_xx.c/h)

4. Opening a project created with Embedded Wizard 11 in Embedded Wizard 14 and saving it again

5. Generate code.

 

Testing shows that it works fine functionally, but the screen looks a little red.
(I can't quite tell if this is a darkened screen or a reddish appearance)
System settings, DMA2D, LTDC settings, etc. are the same as before.

I've tried changing several settings, but I always see the same thing.
Can you think of anything that might be the cause?

 

Embedded wizard 11 display

 

Embedded Wizard 14 display

 

Thank you.

Answer 1

Hello,

really difficult to say what is going wrong.

Maybe the version of the STM32 Cube Firmware is different? Maybe the display gamma table is initialized differently?

Best regards,

Manfred.

Comments

Where do I initialize the display gamma table?

Let me know which parts I should compare.

The STM32 Cube Firmware is the same.

Thank you.

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In case the STM32 Cube Firmware is identical, I do not see any initialization issues or differences.

Can you try some color gradients as used in the example ColorFormats - just to make sure that there are linear color in both cases:

Just to have a common understanding: Are you executing the two binaries on the identical hardware?