touchgfx 1366*768 lcd flicker

[Zakba.1]

https://drive.google.com/file/d/1slB_5LC5tWVdE61MoUpXk6XO0F--_Sts/view?usp=drive_link 

Hello,

I use 1366*768 lcd in stm32h743iit6 with 50MHZ frequency and touch gfx. When I use value.setwildcard() and want to update a value on the screen it flickers ( the screen video is attached ). Would you please tell me what is happening? I have no idea. this is work and I have limited time to fix this.

frame period  = 778     One line Scanning Period  =1446

this is the link to watch the screen video.

https://drive.google.com/file/d/1slB_5LC5tWVdE61MoUpXk6XO0F--_Sts/view?usp=drive_link

[Tesla DeLorean]

50MHz for the pixel clock?

Provide details on the memory setup and bandwidth.

Provide details on the panel and display settings.

[MM..1]

Video is help, but other info is unusable. Show your code for update where you call it and how and bonus is RTOS info usw.

[Zakba.1 · Accepted solution]

Thanks to community members that replied I could solve the problem by reducing the frame rate to 25hz. For 1366×768 more or less than 24hz makes the screen flickering. 

[Tesla DeLorean]

The would make sense, you're pretty close to the bandwidth ceiling.

Can you provide a link to the specific panel you are using?

[Zakba.1]

this is the datasheet for the panel I am using. what do you mean by "you're pretty close to the bandwidth ceiling." ? Where can I find the maximum bandwidth?

[MM..1]

Page 18 is about clock, but Tesla say about band range inside MCU not in LCD.