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

# 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)
OPENOCD_PRE_VERIFY_CMDS += \
  -c 'load_image $(RIOTCPU)/$(CPU)/dist/wdog-disable.bin 0x20000000 bin' \
  -c 'resume 0x20000000'
PRE_FLASH_CHECK_SCRIPT = $(RIOTCPU)/$(CPU)/dist/check-fcfield.sh

DEBUG_ADAPTER ?= dap

# Add board selector (USB serial) to OpenOCD options if specified.
# Use /dist/tools/usb-serial/list-ttys.sh to find out serial number.
#   Usage: SERIAL="0200..." BOARD="pba-d-01-kw2x" make flash
ifneq (,$(SERIAL))
  # Trigger adapter selection on SERIAL in 'openocd-adapters'
  DEBUG_ADAPTER_ID ?= $(SERIAL)
  SERIAL_TTY = $(firstword $(shell $(RIOTTOOLS)/usb-serial/find-tty.sh $(SERIAL)))
  ifeq (,$(SERIAL_TTY))
    $(error Did not find a device with serial $(SERIAL))
  endif
  PORT_LINUX := $(SERIAL_TTY)
endif

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

# The board can become un-flashable after some firmware, use connect_assert_srst
# to always be able to flash or reset the board.
OPENOCD_RESET_USE_CONNECT_ASSERT_SRST ?= 1

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