touchgfx doesn't invalidate screen properly

[hsynk]

hello everyone, 

I try to run TouchGFX on STM32F2 series MCU (Cortex-M3) by using Cortex-M0 core lib. The project built successfully and run TouchGFX. The screen seem good. But I have a problem, after the animations like slider, button pressed etc. the objects doesn't invalidate properly. If I call "invalidate()" periodically, it is OK, all screen update succesfully.

I am attaching the photo of my problem, Can using the Cortex-M0 core lib cause this problem?

• TFT driver : ILI9488
• LCD Interface: FSMC
• Partial buffer (3x1000byte)

 

 

[hsynk]

I realized that when an object need to invalidate, touchgfxDisplayDriverTransmitBlock(..) function passes that h(height) is 2. This can cause the downsampling of data. When I invalidate the screen periodically, the incoming h argument is 1 every time. Why can the passed argument be 2?

 

 

 

 

[Osman SOYKURT]

Hello @hsynk ,

I don't think i's related to Cortex-M0 core lib usage. In some cases, it's normal to invalidate before and after an animation. Can you share your project so I can have a deeper look at it? (you can send it with pm if you'd prefer)