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Kvan .3
Kvan .3
Associate
February 20, 2021
Question

Custom loader internal & qspi possible?

  • February 20, 2021
  • 2 replies
  • 715 views

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.

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2 replies

Tesla DeLorean
Tesla DeLorean
Guru
February 20, 2021

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.

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MM..1
MM..1
Super User
February 20, 2021

Is it possible ? YES

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

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