As for the larger image not loading, it sounds like you are hitting the throughput limitation of the flash SPI interface for the IC, there is a limit on the amount of data which can be red during one screen refresh from flash. You could try lowering the screen refresh rate or utilising Adaptive Frame Rate to see if this helps with the larger images.

This problem fixed.It's about EVE_config library. I don't know why EVE_DISP_PCLK_FREQ is set 0xd12 !!!(In other library is 51MHz)
I changed it to 51000000 , EVE_DISP_PCLK to 20 , EVE_DISP_HCYCLE to 2000 so loading image directly from flash work properly.
I still don't understand why. Is there an explanation for this?

Hello again

Thanks for your reply.

Can you just confirm if you are seeing issues where the Y coordinate is a negative number or if it is any non zero integer?

Y coordinate that i used is positive and i test with another image with different size(72x72) and y coordinate work correct but still previous image(256x152) corrupted with y coordinate. Is it strange Or size affects on function or ...?

Hello
Thank you for your reply.

I found the problem.It's my mistake. I missed EVE_LIB_BeginCoProList command before EVE_CMD_FLASHUPDATE and EVE_CMD_FLASHREAD. Of course in Programming Guide Document in not mentioned about this point and in i found it in uploaded example.

Loading directly ASTC format image from flash to display is done correct but now i have another problem with using EVE_VERTEX2II function. When i use this function to giving coordinate for a bitmap, the x coordinate work properly but nonzero y coordinate cause corrupted display!

Like this:
http://www.brtcommunity.com/index.php?topic=285.msg1341#msg1341

Is solved?

EVE_VERTEX2II work completely good with same image that load from RAM_G.