Touchgfx gets stucked in takeFrameBufferSemaphore()

[stevehong]

Hello.

During rapid screen switching, TouchGFX becomes stuck randomly in takeFrameBufferSemaphore().

The issue reproduces within 1 hour after startup. 

We use TouchGfx 4.18.1 on STM32F439 and TouchGfx runs on external SDRAM. 

Also we have observed that  DMA_Interface "isRunning" status was continuously 1 when TouchGfx was struck.

Could you help me out? Also, when does the DMA's running status get cleared?

[Osman SOYKURT]

Hello @stevehong ,

I could see that the problem you described is very much similar to what was in this thread dated from some years ago. Did you try the workarounds suggested in it?

Regards,

[Jacob WOODRUFF]

Hi All,

This question has been routed to our online support center for direct assistance.

Regards,
Jake

ST Support