in my board I don't have access to any boot pins. The only pins that can use are TX e RX.I'm using ST Flash Loader and ST Cube Programmer to load the firmware .Thanks
Hi TDK, thanks for your answer,When I get a new board I load the firmware using ST Link programmer. The firmware that is loaded accepts some commands , one of them is the command to jump to the system bootloader.I think I'll follow your suggestion an...