Slice callback function example to avoid flickering since memory device and copytolcd function is consuming more execution time

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    • Slice callback function example to avoid flickering since memory device and copytolcd function is consuming more execution time

      Can you please explain slice call back function with an example to avoid flickering since in my application after creating memory device and using GUI_MEMDEV_CopyToLCD function
      (mainly to avoid flickering) to draw multiple text lines of font size "Aerial37_Bold", it is taking around 130ms execution time on 480*480 pixels display.

    • Hi,

      Which slice callback function are talking about?

      It is possible to set a animation callback function with GUI_MEMDEV_SetAnimationCallback(). But this is only for the memory device animation functions like GUI_MEMDEV_FadeInDevices(). But this will not reduce the drawing time.

      If you are using the GUIDRV_Lin driver you should use multibuffering to avoid flickering. With multibuffering you don't have to memory devices and the output will be drawn directly into the backbuffer.

      You might refer to the emWin user manual chapter 23 Multiple Buffering to get more information about this.

      Regards,
      Sven
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