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# define the cpu used by SAMR21 Xplained Pro board
export CPU = samd21
export CPU_MODEL = samr21g18a
# set default port depending on operating system
PORT_LINUX ?= /dev/ttyACM0
PORT_DARWIN ?= $(firstword $(sort $(wildcard /dev/tty.usbmodem*)))
# setup serial terminal
include $(RIOTMAKE)/tools/serial.inc.mk
# Add board selector (USB serial) to OpenOCD options if specified.
# Use /dist/tools/usb-serial/list-ttys.sh to find out serial number.
# Usage: SERIAL="ATML..." BOARD="samr21-xpro" make flash
ifneq (,$(SERIAL))
export OPENOCD_EXTRA_INIT += "-c cmsis_dap_serial $(SERIAL)"
SERIAL_TTY = $(firstword $(shell $(RIOTBASE)/dist/tools/usb-serial/find-tty.sh $(SERIAL)))
ifeq (,$(SERIAL_TTY))
$(error Did not find a device with serial $(SERIAL))
endif
PORT_LINUX := $(SERIAL_TTY)
endif
# this board uses openocd
include $(RIOTMAKE)/tools/openocd.inc.mk