CFLAGS += \
  -flto \
  -mthumb \
  -mabi=aapcs \
  -mcpu=cortex-m4 \
  -mfloat-abi=hard \
  -mfpu=fpv4-sp-d16 \
  -DCFG_TUSB_MCU=OPT_MCU_NRF5X \
  -DNRF52840_XXAA \
  -DCONFIG_GPIO_AS_PINRESET

# nrfx issue undef _ARMCC_VERSION usage https://github.com/NordicSemiconductor/nrfx/issues/49
CFLAGS += -Wno-error=undef -Wno-error=unused-parameter

# due to tusb_hal_nrf_power_event
GCCVERSION = $(firstword $(subst ., ,$(shell arm-none-eabi-gcc -dumpversion)))
ifeq ($(shell expr $(GCCVERSION) \>= 8), 1)
CFLAGS += -Wno-error=cast-function-type
endif

# All source paths should be relative to the top level.
LD_FILE = hw/bsp/circuitplayground_bluefruit/nrf52840_s140_v6.ld

LDFLAGS += -L$(TOP)/hw/mcu/nordic/nrfx/mdk

SRC_C += \
  hw/mcu/nordic/nrfx/drivers/src/nrfx_power.c \
  hw/mcu/nordic/nrfx/mdk/system_nrf52840.c \

INC += \
  $(TOP)/hw/mcu/nordic/cmsis/Include \
  $(TOP)/hw/mcu/nordic \
  $(TOP)/hw/mcu/nordic/nrfx \
  $(TOP)/hw/mcu/nordic/nrfx/mdk \
  $(TOP)/hw/mcu/nordic/nrfx/hal \
  $(TOP)/hw/mcu/nordic/nrfx/drivers/include \
  $(TOP)/hw/mcu/nordic/nrfx/drivers/src \

SRC_S += hw/mcu/nordic/nrfx/mdk/gcc_startup_nrf52840.S

ASFLAGS += -D__HEAP_SIZE=0

# For TinyUSB port source
VENDOR = nordic
CHIP_FAMILY = nrf5x

# For freeRTOS port source
FREERTOS_PORT = ARM_CM4F

# For flash-jlink target
JLINK_DEVICE = nRF52840_xxAA
JLINK_IF = swd

# For uf2 conversion
UF2_FAMILY = 0xADA52840

$(BUILD)/$(BOARD)-firmware.zip: $(BUILD)/$(BOARD)-firmware.hex
	adafruit-nrfutil dfu genpkg --dev-type 0x0052 --sd-req 0xFFFE --application $^ $@
	
# flash using adafruit-nrfutil dfu
flash: $(BUILD)/$(BOARD)-firmware.zip
	@:$(call check_defined, SERIAL, example: SERIAL=/dev/ttyACM0)
	adafruit-nrfutil --verbose dfu serial --package $^ -p $(SERIAL) -b 115200 --singlebank --touch 1200