emWin with ILI9341 Graphic problem

e135193 · Jun 3rd 2020, 9:00am

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);

SEGGER - Schoenen · Jun 3rd 2020, 4:22pm

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

void MainTask(void) {
GUI_RECT Rect = { 0, 0, 49, 49 };
GUI_COLOR aColor[] = { GUI_RED, GUI_GREEN, GUI_BLUE };
char * apColor[GUI_COUNTOF(aColor)] = { "Red", "Green", "Blue" };
unsigned i;
GUI_Init();
GUI_SetTextMode(GUI_TM_TRANS);
for (i = 0; i < GUI_COUNTOF(aColor); i++) {
GUI_SetColor(aColor[i]);
GUI_FillRectEx(&Rect);
GUI_SetColor(GUI_WHITE);
GUI_DispStringInRect(apColor[i], &Rect, GUI_TA_HCENTER | GUI_TA_VCENTER);
GUI_MoveRect(&Rect, Rect.x1 - Rect.x0 + 1, Rect.y1 - Rect.y0 + 1);
}
GUI_MoveRect(&Rect, -(Rect.x1 - Rect.x0 + 1), -(Rect.y1 - Rect.y0 + 1));
GUI_SetColor(GUI_WHITE);
GUI_DrawLine(0, ((Rect.y1 - Rect.y0 + 1) << 1) - 1, ((Rect.x1 - Rect.x0 + 1) << 1) - 1, 0);
GUI_DispStringAt("Test", 0, (Rect.y0 + Rect.y1) >> 1);
GUI_DispStringAt("Test", (Rect.x0 + Rect.x1) >> 1, 0);
GUI_InvertRect(10, 10, Rect.x1 - 10, Rect.y1 - 10);
while (1) {
GUI_Exec();
}
}

Display All

The output should like on screenshot attached (simulation).

Best regards,
Sven

emWin with ILI9341 Graphic problem

emWin with ILI9341 Graphic problem

C Source Code

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