Add UARTE in DFU bootloader to update an STM32

[vonRollChristophe]

Hi,

I use the secure BLE Bootloader to update the nRF52840 (with S140).

Now I want to add a UARTE to update the STM32 connected to nRF52.

Do you have a solution to do that? All my tries have not worked.

Thanks for help.

Best regards.

[vonRollChristophe]

Hi Simon,

I think the SoftDevice is not necessary for LibUarte.

Last days, I tried to update the STM32 with the application, and that's works. So I will try to update the STM32 with the application. The bootloader will receive the new firmware in DFU mode and transfer information to the application with a specific not-initialized RAM space. The application will make the STM32 update. I hope that will run as I want.