# set default port depending on operating system
PORT_LINUX ?= /dev/ttyACM0
PORT_DARWIN ?= $(firstword $(sort $(wildcard /dev/tty.usbmodem*)))

# Use the shared OpenOCD configuration
# Using dap or jlink depends on which firmware the OpenSDA debugger is running
export FRDM_IFACE ?= dap
#export FRDM_IFACE ?= jlink

# OpenOCD v0.10.0 and newer have built-in support for disabling the Kinetis
# watchdog automatically. However, current stable releases of Ubuntu and Debian
# have only version 0.9.0 and older OpenOCD packages (Ubuntu 17.04, Debian Jessie)
# Set this to 0 to avoid the extra manual step of disabling the watchdog.
export USE_OLD_OPENOCD ?= 1

ifeq (1,$(USE_OLD_OPENOCD))
# We need special handling of the watchdog if we want to speed up the flash
# verification by using the MCU to compute the image checksum after flashing.
# wdog-disable.bin is a precompiled binary which will disable the watchdog and
# return control to the debugger (OpenOCD)
export OPENOCD_PRE_VERIFY_CMDS += \
  -c 'load_image $(RIOTCPU)/kinetis_common/dist/wdog-disable.bin 0x20000000 bin' \
  -c 'resume 0x20000000'
export OPENOCD_EXTRA_INIT

.PHONY: flash
flash: $(RIOTCPU)/kinetis_common/dist/wdog-disable.bin

# Reset the default goal.
.DEFAULT_GOAL :=

export OPENOCD_CONFIG ?= $(RIOTBOARD)/frdm-common/dist/old-openocd-$(FRDM_IFACE)-$(CPU_FAMILY).cfg
endif

# Configuration for OpenOCD v0.10.0 and newer
export OPENOCD_CONFIG ?= $(RIOTBOARD)/frdm-common/dist/openocd-$(FRDM_IFACE)-$(CPU_FAMILY).cfg

# Check the flash configuration field before flashing
export PRE_FLASH_CHECK_SCRIPT = $(RIOTCPU)/kinetis_common/dist/check-fcfield-elf.sh

# setup serial terminal
include $(RIOTMAKE)/tools/serial.inc.mk

# this board uses openocd
include $(RIOTMAKE)/tools/openocd.inc.mk