I soldered a new STM32 on the board, it can enter bootloader, but it's under Readout protection(I guess I bought renovated chip), I don't know how to unlock Readout by STM32CubeProgramer, finally, I use STVP and ST-LINK V1 to connect through SWD, and change the option byte, unlock Readout protection.
I don't want to use ST-LINK and STVP, because I need to have SWD interface on the PCB(the PCB space room is very limited). I want to use STM32CubeProgramer through USART to set option byte, but I didn't find out how to set option byte if the chip is Readout protected.
