STM32U5 with TouchGFX Hard fault on initialization

[JacopoFurci]

Hi,

I recently started working on a custom board using the STM32U5G9ZJT6Q microcontroller. I'm planning on using TouchGFX with LTDC, DMA2D and GPU2D to implement a graphical user interface and AzureRTOS as rtos.

I am encountering a problem when, in the main function, the microcontroller hard faults during the MX_TouchGFX_PreOSInit function, in particular at the FrontendHeap& heap = FrontendHeap::getInstance() call.

I am using STM32CubeIde 1.19.0 with STM32CubeMX 6.15.0 and TouchGFX 4.25.0. I also tried with TouchGFX 4.24.2 with no luck unfortunately.

Here are the screenshots of the hard fault info, stacktrace, and disassembly as shown by STM32CubeIde:

I also attached a minimal project in which I only configured the relevant intefaces and middlewares and in which the problem still occurs.

I already made sure that the CRC peripheral is enabled as suggested in other posts I found. 

Sorry if I made some mistakes as it is my first time posting, and thank you for any help you can provide.

[LouisB · Accepted solution]

Hello @JacopoFurci,

In CubeMX in Computing->CRC, you cant have something different from "Default Polynomial State". But after TGFX initialization, you can change the CRC polynomial state if you want to.

BR,

[JacopoFurci]

Hi Louis,

that was the problem thank you. I probably changed it at some point and forgot, now it works as expected.

Thank you again for your help.

Best regards,

Jacopo