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
To give better visibility on the answered topics, please click on Accept as Solution on the reply which solved your issue or answered your question.
