Need Bootloader Sample for STM32U575 Nucleo board

hiteshk014 · ‎2025-10-23

Dear ST Support Team,

I hope this message finds you well.

I am currently working with the STM32U575ZIT6QU Nucleo board and would like to request a assistance in obtaining a sample bootloader application for this device. Goal is to ensure a successful boot-up sequence where the bootloader initializes correctly and subsequently launches a sample application.

To clarify the requirements:

We are not using secure boot or image signing; verification is not required for now not needed, but good to have
Need a basic bootloader that can boot and transition into a sample application reliably.
The sample application should demonstrate that the bootloader has successfully handed over control.
Could you kindly provide:

A reference bootloader project compatible with STM32U575ZIT6QU.
A sample application that can be used to validate the bootloader handoff.
Any documentation or guidelines that would assist in integrating and testing this setup.

Your support in helping us get started with this boot-up flow would be greatly appreciated.

TDK · ‎2025-10-23

> but good to have. Need a basic bootloader that can boot and transition into a sample application reliably.

Why? If the bootloader is always calling the application, there is no need for it. Boot directly to the application.

Open bootloader:

How to use the ST Open Bootloader for STM32 Microc... - STMicroelectronics Community

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Andrew Neil · ‎2025-10-23

What about the built-in System bootloader?

See the device datasheet, and Application note AN2606, Introduction to system memory boot mode on STM32 MCUs.

A complex system that works is invariably found to have evolved from a simple system that worked.
A complex system designed from scratch never works and cannot be patched up to make it work.