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Associate II
April 10, 2025
Question

TouchGFX project not working on STM32H747I Disco

  • April 10, 2025
  • 8 replies
  • 982 views

Hello Everyoane,

I'm new here and I'm trying to set up my first project. I don't have experience with the STM board, so I don't know where the problem starts.

To check the boards, I'm using some templates from TouchGFX Designer and writing on my board. The problem that I have is that is not working correctly at all. I don't have texts or instead of the graphic (one analog clock), for example, I have just a white square. Also, if I load an image and try to display it, it's just a white square on the display ( after I write the program).

If I'm usind text, on the display I have pixel problems.

Can I have some advice, please?

Thank you!

Alex

8 replies

GaetanGodart
Technical Moderator
April 10, 2025

Hello @radescu and welcome to the community!

 

Can you tell me what hardware you are using? You say you use a ST board, so a DK (discovery) board?

If you have a discovery board with a screen, your board is probably already available in the TouchGFX Designer.

If you did not use a TBS (TouchGFX Board Setup) from TouchGFX Designer, can you tell me how you created your project?

 

Regards,

radescuAuthor
Associate II
April 10, 2025

I'm sorry.

The board is STM32H747I - Disco

radescuAuthor
Associate II
April 10, 2025

The project was created in TouchGFX Design. It was just a simple drag and drop test and some buttons to change the pages, to see how it looks on display. I also tried some templates, but the same issues.

The buttons change the pages, but as I said, no text, no colour, no icons. The buttons are just with.

I made some green and red areas on the screen and I have those areas, but buttons, pictures or default features ( clock) are just waith squares

GaetanGodart
Technical Moderator
April 10, 2025

The STM32H747 is available in TouchGFX Designer indeed, but there are 2 different TBS, one for the discovery board and one for the evaluation board, maybe you choose the wrong one.

You can check our Youtube tutorial playlist to learn, how to use TouchGFX.

 

Regards,

radescuAuthor
Associate II
April 10, 2025

I use the correct one. The 2 types are different, so I chose the correct one. I'm sure about this.

Is frustrating that for 5 days, I couldn't have the correct images on the display. Even just a simple text is impossible to display. Should there be a hardware problem with this board? I mean, not fully fixed before being released on the market?

 

I succeeded only in blinking some LEDs on the board, but this is nothing

 

GaetanGodart
Technical Moderator
April 10, 2025

The board should work.
Maybe your external memory is not working on your specific board (wrong jumpers? the board got damaged?).
Can you try to put an image in internal flash and see if you can see the image that way :

GaetanGodart_0-1744292146903.png

 

Also, when you run the simulator, everything is fine right?

 

Finally, if possible, try with another board.

 

Regards,

radescuAuthor
Associate II
April 10, 2025

I will follow the Youtube from your link to see if I find something wrong.

Thank you for your support here!

radescuAuthor
Associate II
April 10, 2025

The board is new, out of the box. I didn't change the jumpers. With the simulator, yes, everything is perfect.

I checked the videos from youTube, and I did the same.

I will check with the image, what you recommended, but it is not related, as a simple button is without colour (it is just a white rectangular shape).

I wanted to use this board for some industrial automation, but as it's started in this way, and I should change the board, it is impossible to rely on this board in the industrial area. I don't invest in another board as I don't trust it anymore.

I thought that I did something wrong, but it looks like the product is for the hobby area, and it can't be used in the industrial area. 

Really appreciate your time here

 

radescuAuthor
Associate II
April 10, 2025

I start working again, and without doing absolutly nothing different, the images and the buttons and everything looks goon now. I think here is a hardware problem, some imperfect contacts, which will b ehard to catch.

Once again, thank you for your support!

MM..1
Chief III
April 10, 2025

Little additional info... you choice most complex board of high level STM without experience, then result is clear...

MM1_0-1744314870038.png

and FYI in designer first step choice board, exist pulldown menu with versions fw variants. Not all works on all board variants. Next point is TGFX version not always latest is best choice usw.

 

radescuAuthor
Associate II
April 11, 2025

Thank you for your post, Mr. MM..1,

I chose that complex board for industrial applications to avoid using a PC and use Visual Studio for programming, mainly because of the dimensions of the board, compared with the PC.

I hope I will manage to make my projects.

Once again, thank you for your involvement and your valuable advice.