emWin dialog box blinking getting slower and slower on STM32f429 DISCO

trial · Jun 14th 2018, 10:52am

Hello
i have a very simple application on STM32f429 DISCO : alternatively display dialog box1 / dialog box 2
After a few second the blinking of the dialog box is very slow.
What can happen the make the system slow down ?

1) Each dialog box has a 200ms timer that calls the other dialog box :
case WM_TIMER:
CreateFramewin_DLG_Startup();

case WM_TIMER:
CreateFramewin_DLG_Status_menu();

2) GUI_ALLOC_GetNumFreeBytes() returns 102948 free bytes

3) each dialog box prints bitmaps :

case WM_INIT_DIALOG:

hItem = pMsg->hWin;
FRAMEWIN_SetTitleVis(hWin, 0);
hItem = WM_GetDialogItem(pMsg->hWin, ID_IMAGE_SAND_GLASS);
IMAGE_SetBitmap(hItem, &bmsandglass);

4) SDRAM is not used

thanks for any support
Best regards

SEGGER - Schoenen · Jun 15th 2018, 9:13am

Hi,

Do you create each 200ms a new dialog?

Are these dialogs getting deleted at some point?

But for now I can't say why it's getting slower. I would expect that you run out of memory at some point if these dialogs are not getting deleted.

Regards,
Sven

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