FLASHFILE ?= $(HEXFILE) FLASHER ?= $(RIOTTOOLS)/uf2/uf2conv.py FFLAGS ?= $(FFLAGS_OPTS) $(FLASHFILE) PREFLASH_DELAY ?= 2 ifeq ($(RIOTTOOLS)/uf2/uf2conv.py,$(FLASHER)) FLASHDEPS += $(FLASHER) endif