Currently, the Arduino and urclock programmers attempt to auto-reset the board via the RTS line, to kick it into bootloader mode. On open, the do a 'RTS=0, Sleep, RTS=1', which pulls the reset line ...

STM32CubeProgrammer allows the set DTR and RTS values when uploading with serial method. This seems impossible to do into Arduino framework stm32duino. There isn't any option parameter in any menu to ...