# setup the flash tool used # Bossa is the default programmer PROGRAMMER ?= bossa # Add bossa as supported programmers. Boards that support more programmers # should declare them in their own Makefile.include PROGRAMMERS_SUPPORTED += bossa ifeq ($(PROGRAMMER),bossa) # by default, we use BOSSA to flash this board and take into account the # preinstalled Arduino bootloader. ROM_OFFSET skips the space taken by # such bootloader. ifeq ($(CPU),samd5x) ROM_OFFSET ?= 0x4000 else ROM_OFFSET ?= 0x2000 endif BOSSA_ARDUINO_PREFLASH = yes PREFLASH_DELAY ?= 2 endif