GUI_MEMDEV_ShiftOutWindow

SimonThome · Jun 20th 2012, 10:38am

Hi everyone,
I would like some help with the animation and memory devices, in particular the GUI_MEMDEV_ShiftOutWindow() function.
I am using the Embedded Artists LPC1788 with 4.3" TFT LCD
When I use the GUI_MEMDEV_ShiftOutWindow() with any window the animation is very slow and appears to be tearing, and thus doesn't look nice at all. I have called these two functions first WM_SetCreateFlags(WM_CF_MEMDEV); GUI_Init();
What do I need to get this animation to run smoothly?

SEGGER - Adrian · Jun 21st 2012, 10:16am

Hello Simon,

Please note that processing animations increases CPU load dramatically, although the emWin routines are highly optimized. I recommend using an ARM9 processor for the implementation of animations, which are offered by NXP and other semiconductors as well.

If you have any further questions, please let me know.

Best regards,
Adrian

SimonThome · Jun 21st 2012, 11:46am

That's a pity.
Thanks for the reply Adrian

SimonThome · Jun 22nd 2012, 4:12pm

Would replacing the GUI_MEMCPY and GUI_MEMSET macros with DMA transfers improve the animation at all on this device? (as mentioned in the configuration chapter of the emWin manual)
Has anyone tried this?

SimonThome · Jun 29th 2012, 3:16pm

Would using multiple buffers increase the perforamce of an animated sliding window, using the LPC1788?

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