MCU_VARIANT = nrf52840 CFLAGS += -DNRF52840_XXAA LD_FILE = $(BOARD_PATH)/$(BOARD).ld # flash using bossac (as part of Nano33 BSP tools) # can be found in arduino15/packages/arduino/tools/bossac/ # Add it to your PATH or change BOSSAC variable to match your installation BOSSAC = bossac flash: $(BUILD)/$(PROJECT).bin @:$(call check_defined, SERIAL, example: SERIAL=/dev/ttyACM0) $(BOSSAC) --port=$(SERIAL) -U -i -e -w $^ -R