Hardfault on STM32F769 using TouchGFX

[pascalous]

hi

I use touchgfx 4.24 , STM32CubeIDE 1.16 and STM32cubeMX 6.12

I do a project with touchgfx, I import it on cubeide, no problems to launch it on the card (STM32F769I-DISCO)

I make a modification ( uart 5) on the file ioc and the bilioteque (newlib rentrand) as requested by CubeMX. When I launch after compilation I have an error, of type MemManage_Handler
I do not see mistake that I could have comeate.
Who can help me?

thank

[mƎALLEm]

Hello @pascalous and welcome to the community,

Check the MPU config and if you declared something in a memory region that MPU prevents that access.

[pascalous]

thank for reply

I just remade a project, I neither is put any personal code. I put uart5 in assynchrone mode, I complicate the file ioc and I have the same problem. uart5 and mpu have they the same memory zone?

 

[mƎALLEm]

Before enabling the UART, did you get the same behavior?

[pascalous]

sorry

i build ioc....not complicate

[pascalous]

sorry for my mistake

I've just send you the complet project

thank you for help

 

 

[mƎALLEm]

Hello @pascalous and thank you for the sharing.

I reproduced the behavior and seems doesn't have a link to USART activation but to the TouchGFX task itself.

Attached your project where I commented out all the code not related to the TouchGFX, increased the Stack size, optimization to None. Still having the issue. Checked MPU config, I don't see any issue 

I think better to move this topic to TouchGFX forum so TouchGFX team can help you.

@GaetanGodart, could you help on this topic?

Thank you.

 

[pascalous]

Thank you for your return, SofLit

[pascalous]

hi

update perform the issue persists
I can’t use my STM32F769I-DISCO card with wifi module and touchgfx
Is there another method?

 

[GaetanGodart]

Hello @pascalous ,

 

I would guess it is an issue with FreeRTOS actually.

Can you try to activate your UART5, but when do not fix the warning about NEWLIB_REENTRANT, when STM32CubeMX asks you "Do you still want to generate code", just click "Yes".

 

Regards,

[pascalous]

It works, thank you for your help

[GaetanGodart]

I am glad it fixed your issue! :smiling_face_with_smiling_eyes: