build klipper with 12k bootloader! can-flash:
bootloader_flash -i can0 -b klipper.bin -a 0x08003000 -c "3d-tool" 5 --page-size 1024
scan for bootloader available:
bootloader_read_config -i can0 -a
using can-bootloader revilo196/can-bootloader/platfrom/can-3d-tool
bootloader aware klipper config to make a klipper mcu acces its bootloader [bootloader ] if is omitted the default mcu is used this anables the BOOTLOADER MCU= comand that will put this mcu in bootloader mode an the rest of the printer in shutdown