I would like to implement read-out protection on STM32F103 high-density device. As far I can see there is an
option register FLASH_OBR with RDP bit for read-out enable/disable protection.
Beside the main application, I also implemented bootloader, which can reprogram main application from external
flash. So this bootloader should be able to SET and CLEAR RDP bit without a need for mass flash erase!
Is this possible? I implemented WRITE protection, which works OK, but I can't get read-out protection!
I managed to enable read-out protection using an external tool, but it is not functional if I run it from code.