STM32H5 External Loader QSPI flash MX25L12835F

[lallain]

Hello,

I am trying to make an external loader for a STM32H5 to program a QSPI flash MX25L12835F with STM32 Cube Programmer.

In my project I add files Dev_inf.c .h ans Loader_Src.c .h from :

https://github.com/STMicroelectronics/stm32-externaloader/tree/main/STM32H5x_boards/MX25LM51245G_STM32H573I-DK

And modify them to adapt to my board :

- Dev_inf.c  : update StorageInfo struct

- Loader_src.c : reimplement Init() , MassErase() , Write(), SectorErase() with my flash driver.

I test these functions in debug with the original linker STM32H562RGTX_FLASH.ld and these functions works ok.

After I change the linker file with linker.ld of the branch contrib stm32-external-loader\Loader_Files\other devices and build and generate the file .stldr and put it into STM32CubeProgrammer\bin\ExternalLoader

Then when I open STM32CubeProgrammer I see my external loader in the list :

 

But when I try to read or erase at QSPI address 0x90000000 I get an error immediatly and nothing happens on the QSPI bus signals like if the functions are not executed :

Does anyone have an idea of what I forgot to do ? 

Thanks,

[KDJEM.1]

Hello @lallain and welcome to the community;

I recommend you to look at MOOC - External QSPI loader how to - YouTube and get inspired to check your configuration.

Which VTOR address are you using? I think this discussion can help you: Solved: Files for STM32H563 External Loader - STMicroelectronics Community

I hope this help you!

Thank you.

Kaouthar