About DMA2D_XferErrorCallback error.

[JPark.14]

Dear TouchGFX team,

 I am developing STM32L4R9 B/D including

DSI video mode LCD,

PSRAM,

OctoSPI Flash,

and TouchGFX.

Usually the device works well but sometimes it goes to "DMA2D_XferErrorCallback" handler.

In SEM32DMA.cpp,

static void DMA2D_XferErrorCallback(DMA2D_HandleTypeDef* handle)

{

   //assert(0);

  printf("%s()\n", __FUNCTION__);

}

When this error happens, the TouchGFX task comes to a halt but other tasks work normally.

Why this "DMA2D_XferErrorCallback" error happens? Is there any good way to prevent from it?

And could you let me know what I have to do to get out of this state when it happen?

Please let me know if any solution or good guideline.

Thanks in advance!

J.Park