Custom loader internal & qspi possible?

[Kvan .3]

Is it possible to write a custom loader (.stldr) for internal and external (qspi) flash? If so, any tips?

I'm following this guide:

https://www.st.com/content/st_com/en/support/learning/stm32-education/stm32-moocs/external_QSPI_loader.html

This is a touchgfx application with images in qspi and code running from internal flash on a STM32H743ZI.

[Tesla DeLorean]

The loaders for STM32 Cube Programmer / ST-LINK Utilities are single task, and ST already knows how to program the internal memories in its devices.

The problem comes with random pining and parts chosen by the end-user, quite a lot of unknown-unknowns

Suggest as a starting point you write application code that can read, erase and write your QSPI device as attached on your board, and test that extensively.

[MM..1]

Is it possible ? YES

Some tips source example exist in folder stlink or programmer external loaders...