STM32f746G Discovery .IOC loaded from CUBEMX with STemwin LCD display

[melt brink]

Posted on May 17, 2018 at 16:02

Goodday. 

Loading the default values in STM32f746 disco on STCubeMx, and performing following checks :

1. Graphics ticked, STEmwin enabled, Guibuilder enabled

2. Corrected the pixel resolutuon 480x272

3. Execute Guibuilder from within StCube

4. As per STcube manual (UM1718) check CRS, DMA2D, FMC,SDRAM,RCC,LTDC and DSI (all standard activated when loading the 746 Disco default  .IOC profile.

I am still not getting any display for some reason. I have tried to disable RTOS as well as any other peripherals in the default  setup that isnot required with no luck. I suspect a clock setup or something that has not been ticked.

Anyone perhaps have a working .IOC 32f746 Disco setup with working StemWin and  Guibuilder for me to compare to?

thanks a mil

#stcubemx #mbedtls-stm32f746g-discovery #stemwin #stemwin-guibuilder

[Imen.D]

Posted on May 17, 2018 at 16:16

Hello,

Which CubeMx and Cube firmware package versions used ?

Be sure to use the latest version and check that GUI_Init is called before any STemWin function is used.

I recommend you to share your ioc file to check your problem.

Best Regards

Imen.

[melt brink]

Posted on May 17, 2018 at 16:32

attcahed is my .IOC file after I have disabled just about everything. All I require is USART 6.

Im using cube 4.1

with latest f7 firmware 1.0

________________

Attachments :

WaiterGui_cube_disco7.ioc.zip : https://st--c.eu10.content.force.com/sfc/dist/version/download/?oid=00Db0000000YtG6&ids=0680X000006HxcJ&d=%2Fa%2F0X0000000b0E%2FIZ5L8xVsidwLMcvHcOBNvsmw6BgGc1b6LCtLJH1LEnI&asPdf=false

[Nawres GHARBI]

Posted on May 21, 2018 at 15:08

Hi Melt,

This is a pre-configured ioc, it may help you

________________

Attachments :

STM32F746_Discovery_Board.ioc.zip : https://st--c.eu10.content.force.com/sfc/dist/version/download/?oid=00Db0000000YtG6&ids=0680X000006HxXA&d=%2Fa%2F0X0000000b05%2FSIvJk6Il4Fs55rAg5CuZwzZU5ZwJkIjR7NnkYgLujYs&asPdf=false

[melt brink]

Posted on May 21, 2018 at 14:18

*/

#include 'GUI_App.h'

#include 'GUI.h'

#include 'DIALOG.h'

extern WM_HWIN CreateWindow(void);

void GRAPHICS_MainTask(void) {

/* 2- Create a Window using GUIBuilder */

// CreateWindow();

/* USER CODE BEGIN GRAPHICS_MainTask */

/* User can implement his graphic application here */

/* Hello Word example */

GUI_Clear();

GUI_SetColor(GUI_GREEN);

GUI_SetFont(&GUI_Font32_1);

GUI_DispStringAt('Hxcvdgdg!', (LCD_GetXSize()-150)/2, (LCD_GetYSize()-20)/2);

// GUI_Delay(5000);

GUI_DrawGradientRoundedV(100, 100, 140, 140, 10, GUI_LIGHTGRAY, GUI_GRAY);

GUI_Delay(5000);

GUI_SetColor(GUI_WHITE);

/* USER CODE END GRAPHICS_MainTask */

while(1)

{

GUI_Delay(100);

}

}

/*************************** End of file ****************************/

I have made some progress and can now print and draw to the stm32f746 using the code attached. My Guibuilder code

is not working as soon as I call Createwindow(); I get a blank screen.GUI_Aoo.c code attached.

For the Guibuilder to work do I need to include additional files besides the ones generated by .IOC?

my NEW IOC attatched.

________________

Attachments :

STM32F746_Discovery_Board.ioc.zip : https://st--c.eu10.content.force.com/sfc/dist/version/download/?oid=00Db0000000YtG6&ids=0680X000006HxaN&d=%2Fa%2F0X0000000b02%2FKSFH0n._gBR_AX_1XgmmRA_6pr28N_Q..maSdcjATrs&asPdf=false

[melt brink]

Posted on May 21, 2018 at 16:17

Thanks Imen. I have tried your IOC file and seem to have the same problem. I can write and draw on the LCD but the minute I run 

CreateWindow();, the display flashes some pixels and goes black.

I suspect it could be an include file im missing from STemwin

[Nawres GHARBI]

Posted on May 29, 2018 at 16:00

Hi melt, 

In your DLG file go to 'static void _cbDialog' 

then case WM_INIT_DIALOG: and at the end of this case in the user tag put WM_Paint(pMsg->hWin);

[melt brink]

Posted on May 29, 2018 at 17:37

Thanks for the suggestion Nawres, I dontt seem to have  this case 

WM_INIT_DIALOG:

static void _cbDialog(WM_MESSAGE * pMsg) {

int NCode;

int Id;

// USER START (Optionally insert additional variables)

// USER END

switch (pMsg->MsgId) {

case WM_NOTIFY_PARENT:

Id = WM_GetId(pMsg->hWinSrc);

NCode = pMsg->Data.v;

switch(Id) {

case ID_BUTTON_0: // Notifications sent by 'Button'

switch(NCode) {

case WM_NOTIFICATION_CLICKED:

// USER START (Optionally insert code for reacting on notification message)

// USER END

break;

case WM_NOTIFICATION_RELEASED:

// USER START (Optionally insert code for reacting on notification message)

// USER END

break;

// USER START (Optionally insert additional code for further notification handling)

// USER END

}

break;

// USER START (Optionally insert additional code for further Ids)

// USER END

}

break;

// USER START (Optionally insert additional message handling)

// USER END

default:

WM_DefaultProc(pMsg);

break;

}

}

[melt brink]

Posted on June 14, 2018 at 12:30

From ST I have received a working IOC file with just graphics, UART, TIM3. Thanks to ST guys. Touch not support in Cubemx s yet. I am now trying to include touch but will start a new thread.

________________

Attachments :

STM32F746-Disco_CubeMX_4.26.ioc.zip : https://st--c.eu10.content.force.com/sfc/dist/version/download/?oid=00Db0000000YtG6&ids=0680X000006HxV3&d=%2Fa%2F0X0000000ayr%2FBWeO0U4VAc77WTeImKnaZWhqBUK30zvK_qGMD9tf8h0&asPdf=false

[ZMohd.7]

Hi Melt,

Hope you are doing well.

Can you share me that IOC file, provided by ST employee, because I'm here working on STM32F7 Discovery(MB1191B) board and facing same problem LCD not bring up when generating C code using STM32CubeMX.

Thanks in Advanced!!

[melt brink]

Please find file attached

[melt brink]

Hi Zafar

Are you using Stemwin? if you are then Stemwin will include the the touch functions. Remember to run Stemwin from within cubemx and make you GUI.

[ZMohd.7]

Hi Melt.

Thank You for your valuable replay!!

I will check it. :)

Regards,

Zafar

[Imen.D]

Hello @ZMohd.7​ ,

I invite you to follow this FAQ: Enable touch screen on the STM32F746G-Discovery

https://community.st.com/s/article/FAQ-Enable-touch-screen-on-the-STM32F746G-Discovery

Kind Regards,

Imen

[ZMohd.7]

Dear @Imen DAHMEN​ 

I followed the provided link and it's perfectly fine for me display with touch.

This time I am trying to build basic graphics display program using Internal SRAM of STM32F746 discovery board, I am able to swap the graphics buffer memory location from SDRAM to SRAM provided example code.

But when i am generate a code using CUBEMX with STemWin and in FMC option select LCD Interface in memory type, code is build but unfortunately it's not working or display blank.

[ .ioc file are attached for your reference.] 

Thanks in Advance.

Regards,

zaf

[TKula]

Hi all.

​

If take the 4.26 project and open in truestudio the touch works. But if i tskr the 4.26 into CubeMX and migrate to latest CubeF7 touch doesn't work. Any ideas why?​