I need a customized bootloader as source code for the stm32f4 and F0 series.
The bootloader will be used in a system, which is interconnected with halfduplex RS-485.
Multiple Controller in the system will have their own ID and there is a master mcu.
Its not relevant how to get the bootloader into the system, its allowed to use SWD or JTAG.
I would also need a puristic gui where I can upload the firmware into the controller.
For the start I only need to evaluate the bootloader with a discovery board,
later on it would be great to select each controller in the system for update via a spinbox.
Also a small tool, where the firmware is encrypted, would be cool including
the ability to write the key into it.
It would be a plus, if the bootloader can have encryption.