Hardware integration on STM32H750 Disco board with TouchGFX

[Zui]

Hello

i'm trying to port the code shown in the webinar:

https://www.youtube.com/watch?v=jQO7zhX0e0Q

to the STM32H750 disco board, because i need urgently to be able to pilot a GPIO on that board.

The webinar shows the TouchGFX project genarated code, in particular on 29:54 the main.cpp is shown, which have hw_init() and touchgfx_init() functions, but in my main.cpp those functions are not there. is this because at the moment the touchGFX can't generate a CUBEMX project? any way to do that?

i also tryed to generate a project starting from CUBEMX, sinche this H750eval board is present, but when i choose that board, only the MCU is shown, not the board, so i can't configure any GPIO/Led ecc on board.

Thanks for any help

[Martin KJELDSEN]

Hi @Zui​,

CubeMX does not support TouchGFX on H7, yet. We have an H750 disco application template available through the designer, though.

You're right in that the calls to

hw_init();
touchgfx_init();

are in main.cpp, but the definitions are usually in BoardConfiguration.cpp.

Try starting from TouchGFX Designer instead and make changes to GPIOs by hand - Or, do it in CubeMX in a seperate project and port those changes over to the TouchGFX project.

/Martin

[Zui]

I'm doing as you suggest, but now i can't make it work when compiled via IAR.

i started a new TouchGFX project, imported my GUI, compiled and downloaded to my board, all worked fine, but if i try do load on board same code compiled by IAR won't work (and i'm using STM32 Link Utility to flash into board)

any advice?

Tnx

[Martin KJELDSEN]

You'll have to be more specific, i think. Can you debug your way through the application?

/Martin

[Zui]

no, i'm just using IAR for compiling, then flashing with stm32 link

[Martin KJELDSEN]

You should be able to program using st-link and then debug the code running from internal flash using IAR.

/Martin

[Zui]

Yes i can do that (just tryedd), but how that is going to help me understan why same code, compiled with touchGFX gcc works, and compiled with IAR don't?

Thanks

[Martin KJELDSEN]

It will help you understand where things go wrong, and then maybe, based on that, we can figure out the answer to your original question.

/Martin