TouchGFX Screen flickers when another screen is selected

[GS1]

Hi TouchGFX users,

I have a flicker problem which obviously exists since Release 4.14 (maybe already 4.13. as I scipped this release)

Appx. after every 20 ... 30 power cycles the screen initialisation and updates to included widgets flickers. Powering up the system again clears this effect and everything works perfectly.

Please see below video on how this effect looks like. The flicker is only once per screen update.

Of course I use double buffering.

Has anybody an idea of what might be the reason?

P.S: This effect is also seen once when another screen is selected, which does not update values every 0.5 sec like seen in the screen from the video. 

Best regards

GS

[Bob Bailey]

memory leak stepping on your framebuffer?

[Bob Bailey]

perhaps some issue with the DMA interfering with TouchGFX actions. Try handling the UART stuff with just interupts. I have a similar project with UART and CAN both receiving at moderate speeds with no issues. Currently on version 4.16

Bob

[MJonk.1]

did you find a solution to this? We are facing a similar issue. Thank you.

[GS1]

Hi,

no, the problem still exists and we just have to live with it, unfortunately.

[MM..1]

Hi long time, but you write still have issue. From video seems conflict repeat is around half second. Better is show your code and write where you comunicate and how.

Model tick is executed alltime, too on screen changes usw.