# This board uses the vendor's serial bootloader

PROGRAMMER ?= nrfutil

ifeq (nrfutil,$(PROGRAMMER))

  # Using nrfutil implies using the Nordic bootloader described at
  # <https://devzone.nordicsemi.com/nordic/short-range-guides/b/getting-started/posts/nrf52840-dongle-programming-tutorial>.
  #
  # It has a static MBR at the first 4k, and an ample 128k Open USB Bootloader at
  # the end, leaving 892k for the application. This overwrites any SoftDevice,
  # but that's what the minimal working example for the dongle does as well.

  ROM_OFFSET = 0x1000
  ROM_LEN = 0xdf000

  FLASHFILE = $(HEXFILE)
  FLASHDEPS += $(HEXFILE).zip
  FLASHER = nrfutil
  FFLAGS = dfu usb-serial --port=${PORT} --package=$(HEXFILE).zip

  include $(RIOTMAKE)/tools/usb_board_reset.mk
endif

PROGRAMMERS_SUPPORTED += nrfutil

%.hex.zip: %.hex
	$(call check_cmd,$(FLASHER),Flash program and preparation tool)
	$(FLASHER) pkg generate --hw-version 52 --sd-req 0x00 --application-version 1 --application $< $@

include $(RIOTBOARD)/common/nrf52/Makefile.include