emWin with ILI9341 Graphic problem

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    • emWin with ILI9341 Graphic problem

      Hello,
      I have made an STemWin example with STM32F407 and ILI9341 with SPI interface.
      I think that there is an graphic driver problem. The graphics are not sharp. What Could be the correct driver settings ?
      My settings are;
      pDevice = GUI_DEVICE_CreateAndLink(GUIDRV_FLEXCOLOR, GUICC_565, 0, 0);
      GUIDRV_FlexColor_SetFunc(pDevice, &PortAPI, GUIDRV_FLEXCOLOR_F66709, GUIDRV_FLEXCOLOR_M16C0B8);
      Images
      • image.jpg

        244.35 kB, 1,280×960, viewed 207 times
    • Hi,

      Hard to say what's going wrong here.

      I suggest to double check your routines for writing and reading data, set in the PortAPI struct.

      Please try the code below.

      C Source Code

      1. void MainTask(void) {
      2. GUI_RECT Rect = { 0, 0, 49, 49 };
      3. GUI_COLOR aColor[] = { GUI_RED, GUI_GREEN, GUI_BLUE };
      4. char * apColor[GUI_COUNTOF(aColor)] = { "Red", "Green", "Blue" };
      5. unsigned i;
      6. GUI_Init();
      7. GUI_SetTextMode(GUI_TM_TRANS);
      8. for (i = 0; i < GUI_COUNTOF(aColor); i++) {
      9. GUI_SetColor(aColor[i]);
      10. GUI_FillRectEx(&Rect);
      11. GUI_SetColor(GUI_WHITE);
      12. GUI_DispStringInRect(apColor[i], &Rect, GUI_TA_HCENTER | GUI_TA_VCENTER);
      13. GUI_MoveRect(&Rect, Rect.x1 - Rect.x0 + 1, Rect.y1 - Rect.y0 + 1);
      14. }
      15. GUI_MoveRect(&Rect, -(Rect.x1 - Rect.x0 + 1), -(Rect.y1 - Rect.y0 + 1));
      16. GUI_SetColor(GUI_WHITE);
      17. GUI_DrawLine(0, ((Rect.y1 - Rect.y0 + 1) << 1) - 1, ((Rect.x1 - Rect.x0 + 1) << 1) - 1, 0);
      18. GUI_DispStringAt("Test", 0, (Rect.y0 + Rect.y1) >> 1);
      19. GUI_DispStringAt("Test", (Rect.x0 + Rect.x1) >> 1, 0);
      20. GUI_InvertRect(10, 10, Rect.x1 - 10, Rect.y1 - 10);
      21. while (1) {
      22. GUI_Exec();
      23. }
      24. }
      Display All
      The output should like on screenshot attached (simulation).

      Best regards,
      Sven
      Images
      • TestScreen.png

        4.03 kB, 226×208, viewed 175 times
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