STEmwin not working at all. Just getting a blank screen

[JHeni]

Hey guys,

i got a strange problem with stemwin.

I'm currently migrating my project from an F103 to an F413.

On the F103 Stmwin worked fine. On my F413 i'm just getting a blank screen.

Let's assume the actuel LCD_Write/Read are still working. Could you give me some hint's where to check?

My EmWin Initialisation looks like this:

void LCD_X_Config(void) {
 
	ERROR_LOGGER_T error_logger = {0};
	error_logger.error_type = error_types_display_stemwin;
 
 GUI_DEVICE * pDevice;
 CONFIG_FLEXCOLOR Config = {0};
 GUI_PORT_API PortAPI = {0};
 //
 // Set display driver and color conversion
 //
 pDevice = GUI_DEVICE_CreateAndLink(GUIDRV_FLEXCOLOR, GUICC_565, 0, 0);
 //
 // Display driver configuration, required for Lin-driver
 //
 LCD_SetSizeEx (0, XSIZE_PHYS , YSIZE_PHYS);
 LCD_SetVSizeEx(0, VXSIZE_PHYS, VYSIZE_PHYS);
 //
 // Orientation
 //
 
 Config.Orientation = GUI_MIRROR_X;
 
 GUIDRV_FlexColor_Config(pDevice, &Config);
 
 
 //
 // Set controller and operation mode
 //
 PortAPI.pfWrite16_A0 = LcdWriteReg;
 PortAPI.pfWrite16_A1 = LcdWriteData;
 PortAPI.pfWriteM16_A1 = LcdWriteDataMultiple;
 PortAPI.pfReadM16_A1 = LcdReadDataMultiple;
 
 
 
 GUIDRV_FlexColor_SetFunc(pDevice, &PortAPI, GUIDRV_FLEXCOLOR_F66714, GUIDRV_FLEXCOLOR_M16C0B16);

int LCD_X_DisplayDriver(unsigned LayerIndex, unsigned Cmd, void * pData) {
	int r;
	(void) LayerIndex;
	(void) pData;
 
	switch (Cmd) {
	case LCD_X_INITCONTROLLER: {
	//
	// Called during the initialization process in order to set up the
	// display controller and put it into operation. If the display
	// controller is not initialized by any external routine this needs
 
		//do something
 
		return 0;
	}
//no other cases
	default:
	{
		r = -1;
		break;
	}
	}
	return r;
}

Do i have to add extra cases here?

Does Stemwin provide any debugging options? Can i somehow check what's wrong or does somebody have an idea whats missing?

Again: It all Worked on my F1. The SPI Communication and the Config are still the same on the F4.

The emwin library version is the same. however it's a libary version compiled with a floating point unit.

I'd be very glad for any suggestions :)