USBCPD CubeIDE code results in HardFault when GUI_INTERFACE is enabled

[Franz.1]

So, I followed the following video step by step for a "project with a custom board" (video minute 13:04)

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

I am working on an STM32G0B1CBT6

The code is generated and can be built, but as soon as I enable the Utilities->GUI_INTERFACE in CubeMX, the generated code results in a Hardfault during initialisation ( to be specific in the in the file Utilities-> GUI_INTERFACE->bsp_gui.c) during execution of the line number 80, that is

 

 

 

 if ((0xFFFFFFFFu != *((uint32_t *)_addr)) && (MagicNumber != *((uint64_t *)_addr)))

 

 

 

Any hints on how to proceed debugging?

Thanks!

[TDK]

Ensure that the address at _addr is valid and lies within a readable memory somewhere.

[Franz.1]

Well, _addr is defined as

 

uint32_t _addr = GUI_FLASH_MAGIC_NUMBER;

 

 

The GUI_FLASH_MAGIC_NUMBER itself comes from 

 

#define GUI_FLASH_MAGIC_NUMBER ADDR_FLASH_LAST_PAGE

 

 

ADDR_FLASH_LAST_PAGE comes from

 

#if defined (FLASH_OPTR_DBANK) || defined(FLASH_DBANK_SUPPORT)
#define INDEX_PAGE ((FLASH_PAGE_NB * 2u) - 1u) /* Index of latest page */
#else
#define INDEX_PAGE (FLASH_PAGE_NB - 1u) /* Index of latest page */
#endif /* FLASH_OPTR_DBANK || FLASH_DBANK_SUPPORT */
#define ADDR_FLASH_LAST_PAGE (FLASH_BASE + (INDEX_PAGE * FLASH_PAGE_SIZE)) /* Base @ of latest page */
#define ADDR_FLASH_PAGE_END (ADDR_FLASH_LAST_PAGE + FLASH_PAGE_SIZE - 1u)

 

 

This comes all from the pregenerated code. The defines in the section above all refer to the respective stm32g0xx_hal_flash.h.  I did not change any of that and it seems correct.

[TDK]

I agree with your assessment.

When you debug the code, use the fault analyzer to see what it says is wrong.

Look at "_addr" in the expressions or variables window to find out where it points and ensure it's valid.

[zbrozek]

Just wanted to surface this thread to ST; this bug still exists. @FBL