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Is it possible that STemWin (should be same as emWin) can cause problem where texts are displayed correctly at the same time as circles are displayed wrongly? That don't look like a display driver issue because some stuff is displayed totally ok. As far as I understand the display image is first created to the frame buffer and then transferred to the screen. Transferring data from frame buffer could not anymore separate if content is text or circle - even on same position. What can possible caus…
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I'm experiencing same problem as in smashings original question. I'm using STM32F429 discovery hardware and STemWin's Hello world example application from STM32Cube_FW_F4_V1.1.0 package as a base for my tests. I have put some texts, bitmaps and rectangles to the screen as a test. Everything works correctly when I use GUIDRV_LIN_32 driver as is in the example. Rotating screen 180 degrees with use of GUIDRV_LIN_OXY_32 seems ok. But when I take a closer look it's not. Texts and bitmaps are correctl…