Upgrade STM32WB5 MCU (Stack + User app) via UART

[Artomatica]

We have the following use case: 
- H5 MCU runs FreeRtos and communicates with the STM32WB5 chip via UART;
- We want to be able to download the SW into the CM4 and CM0 memory regions.
What is the simplest way to update the stack and user app via UART?

Thank you!

[Foued_KH]

Hello @Artomatica , 

You can use a bootloader to update the stack and user app.

The bootloader can be programmed into the device's memory during the initial programming phase and is responsible for updating the firmware.
When a firmware update is required, the firmware update tool sends the new firmware over UART to the bootloader, which writes it to the appropriate memory regions.

Foued