Configure stm32h747i-disco touch screen to make a graphic interface.

[slimani]

I am a student in embedded systems. I have a final project with the stm32h747i-disco card. I want to configure the touch screen to make a graphic interface.

[mƎALLEm]

Hello @slimani and welcome to the ST community,

Please use TouchGFX designer tool to create a ready-to-use graphic project based on that board. The hardware will be configured automatically: LCD, Frame buffer, TouchScreen, memories, etc ..

As shown in this screenshot, find your board and click on create button:

Hope that answers your question.

[slimani]

I am making a project on touchgfx and I upload this project to the card but the card screen does not work remains black please help me 

 

[mƎALLEm]

Hello,

You are using a dual core product and there are two projects related to both cores CM4 and CM7. Make sure to upload the two binaries of both cores:

No relation with activating a timer with the display.

[slimani]

I do all that but nothing changes the screen remains black does not turn on can you give me the steps to test the screen

[slimani]

I also activate the timer but the screen always remains black and does not light up.

[slimani]

I download it how do I upload it to stm32

[slimani]

 

[slimani]

finally it works

 

[mƎALLEm]

Now did you try the generated TouchGFX project?

Note: don't start a debug session. Just upload the two applications CM4 and CM7 disconnect and reconnect the STLINK USB cable again.

[slimani]

I want to make this graphical interface, can you help me to do that and thank you very much 

 

[mƎALLEm]

1 - Did you solve your original issue or not? does the generated TouchGX project is working for you? and how it worked for you.

2- 

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@slimani wrote:

I want to make this graphical interface, can you help me to do that and thank you very much 

 

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This is another question, you need to open e new thread for it.

Thank you.

[slimani]

No, my problem is not solved. I didn't understand the cause of this problem. When I create a project with TouchGFX and upload it to the STM32, the screen remains black and doesn't light up. However, when I upload the demo project you gave me, the screen works correctly.
And I will open a new thread for the GFX interface.

[slimani]

I didn't understand your answer correctly but I opened stmprogrammer and I found this file and I clicked on connect, what is this file for? Is it for you to upload this file and then I upload the project if it explains to you what exactly needs to be done?

[mƎALLEm]

This the flashloader used by STM32CubeProgrammer to upload the external Flash (QuadSPI). The quad SPI flash contains the TouchGFX assets: images, texts etc.. 

Select that Flash loader then upload the two hex files as I mentionned before. Did you see somthing on the screen?

[slimani]

I uploaded the two .hex files from CM7 and CM4 but the screen remains black and does not light up. The screen only lights up when I upload the demo project. I don't understand the cause of this.