How make external loader AT25SF128A for STM32H723zgt6?

[CabinJo]

HI.

Previously, I successfully completed development for my project using the W25Q128 SPI Flash with its working External Loader file (.stldr).

However, due to internal circumstances, we have recently replaced the external memory with the AT25SF128A. Since changing the chip, flashing code via the previous external loader no longer works.

As a result, I need an External Loader tailored for the AT25SF128A.
Could you please let me know if an External Loader for the AT25SF128A on the STM32H723 is already available from ST?

If it is not available, could you provide guidance or reference materials on how to generate/modify an External Loader project for this specific memory?

Thank you for your support.

[Guenael Cadier]

hi ​@CabinJo 
Indeed each loader is dedicated to a memory reference.
For guidance, please check if you could find useful information in this MooC, even it does not rely on same memory reference, or STM32 reference.
https://www.st.com/content/st_com/en/support/learning/stm32-moocs/external_QSPI_loader.html
Regards