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# determine values for SOURCES, TARGET and LIBRARIES. Any .c, .cc and .cpp
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# files in the project directory (or any "util" or "utility" subdirectories)
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# are automatically included in the build and are scanned for Arduino libraries
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# that have been #included. Note, there can only be one .ino (or .pde) file.
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# that have been #included. Note, there can only be one .ino (or .pde) file.
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# Alternatively, if you want to manually specify build variables, create a
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# Makefile that defines SOURCES and LIBRARIES and then includes arduino.mk.
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# ARDUINODIR The path where the Arduino software is installed on your system.
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# ARDUINOCONST The Arduino software version, as an integer, used to define the
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# ARDUINO version constant. This defaults to 100 if undefined.
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# ARDUINO version constant. This defaults to 100 if undefined.
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# AVRDUDECONF The avrdude.conf to use. If undefined, this defaults to a guess
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# based on where the avrdude in use is. If empty, no avrdude.conf
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# AVRDUDECONF The avrdude.conf to use. If undefined, this defaults to a guess
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# based on where the avrdude in use is. If empty, no avrdude.conf
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# is passed to avrdude (to the system default is used).
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# AVRTOOLSPATH A space-separated list of directories to search in order when
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# looking for the avr build tools. This defaults to the system PATH
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# followed by subdirectories in ARDUINODIR if undefined.
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# AVRDUDEFLAGS Specify any additional flags for avrdude. The usual flags,
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# required to build the project, will be appended to this.
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# AVRTOOLSPATH A space-separated list of directories that is searched in order
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# when looking for the avr build tools. This defaults to PATH,
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# followed by subdirectories in ARDUINODIR.
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# BOARD Specify a target board type. Run `make boards` to see available
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# CPPFLAGS Specify any additional flags for the compiler. The usual flags,
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# required to build the project, will be appended to this.
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# LINKFLAGS Specify any additional flags for the linker. The usual flags,
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# required to build the project, will be appended to this.
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# LIBRARIES A list of Arduino libraries to build and include. This is set
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# automatically if a .ino (or .pde) is found.
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# LIBRARYPATH A space-separated list of directories that is searched in order
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# when looking for Arduino libraries. This defaults to "libs",
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# "libraries" and then the Arduino software's libraries directory.
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# SERIALDEV The unix device name of the serial device that is the Arduino.
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# If unspecified, an attempt is made to determine the name of a
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# connected Arduino's serial device.
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# monitor Start `screen` on the serial device. This is meant to be an
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# equivalent to the Arduino serial monitor.
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# size Displays size information about the bulit target.
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# size Displays size information about the built target.
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# bootloader Burns the bootloader for your board to it.
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# <file> Builds the specified file, either an object file or the target,
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# from those that that would be built for the project.
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ARDUINOCONST ?= 100
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# default path for avr tools
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AVRTOOLSPATH := $(subst :, , $(PATH))
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AVRTOOLSPATH += $(ARDUINODIR)/hardware/tools
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AVRTOOLSPATH += $(ARDUINODIR)/hardware/tools/avr/bin
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AVRTOOLSPATH ?= $(subst :, , $(PATH)) $(ARDUINODIR)/hardware/tools \
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$(ARDUINODIR)/hardware/tools/avr/bin
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# default path to find libraries
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LIBRARYPATH ?= libraries libs $(SKETCHBOOKDIR)/libraries $(ARDUINODIR)/libraries
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# default serial device to a poor guess (something that might be an arduino)
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SERIALDEV := $(firstword $(wildcard \
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/dev/ttyACM? /dev/ttyUSB? /dev/tty.usbserial* /dev/tty.usbmodem*))
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ifneq "$(MAKECMDGOALS)" "boards"
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ifneq "$(MAKECMDGOALS)" "clean"
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$(error BOARD is unset. Type 'make boards' to see possible values)
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# obtain board parameters from the arduino boards.txt file
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BOARDSFILE := $(ARDUINODIR)/hardware/arduino/boards.txt
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readboardsparam = $(shell sed -ne "s/$(BOARD).$(1)=\(.*\)/\1/p" $(BOARDSFILE))
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BOARD_BUILD_MCU := $(call readboardsparam,build.mcu)
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BOARD_BUILD_FCPU := $(call readboardsparam,build.f_cpu)
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BOARD_BUILD_VARIANT := $(call readboardsparam,build.variant)
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BOARD_UPLOAD_SPEED := $(call readboardsparam,upload.speed)
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BOARD_UPLOAD_PROTOCOL := $(call readboardsparam,upload.protocol)
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BOARD_USB_VID := $(call readboardsparam,build.vid)
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BOARD_USB_PID := $(call readboardsparam,build.pid)
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BOARD_BOOTLOADER_UNLOCK := $(call readboardsparam,bootloader.unlock_bits)
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BOARD_BOOTLOADER_LOCK := $(call readboardsparam,bootloader.lock_bits)
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BOARD_BOOTLOADER_LFUSES := $(call readboardsparam,bootloader.low_fuses)
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BOARD_BOOTLOADER_HFUSES := $(call readboardsparam,bootloader.high_fuses)
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BOARD_BOOTLOADER_EFUSES := $(call readboardsparam,bootloader.extended_fuses)
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BOARD_BOOTLOADER_PATH := $(call readboardsparam,bootloader.path)
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BOARD_BOOTLOADER_FILE := $(call readboardsparam,bootloader.file)
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# obtain preferences from the IDE's preferences.txt
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PREFERENCESFILE := $(wildcard $(HOME)/.arduino/preferences.txt)
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ifneq "$(PREFERENCESFILE)" ""
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readpreferencesparam = $(shell sed -ne "s/$(1)=\(.*\)/\1/p" $(PREFERENCESFILE))
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SKETCHBOOKDIR := $(call readpreferencesparam,sketchbook.path)
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ifeq "$(BOARD_BUILD_MCU)" ""
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ifneq "$(MAKECMDGOALS)" "boards"
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ifneq "$(MAKECMDGOALS)" "clean"
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$(error BOARD is invalid. Type 'make boards' to see possible values)
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# automatically determine sources and targeet
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TARGET := $(basename $(INOFILE))
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SOURCES := $(INOFILE) \
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$(wildcard *.c *.cc *.cpp) \
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$(wildcard $(addprefix util/, *.c *.cc *.cpp)) \
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$(wildcard $(addprefix utility/, *.c *.cc *.cpp))
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$(wildcard *.c *.cc *.cpp *.C) \
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$(wildcard $(addprefix util/, *.c *.cc *.cpp *.C)) \
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$(wildcard $(addprefix utility/, *.c *.cc *.cpp *.C))
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# automatically determine included libraries
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LIBRARIES := $(filter $(notdir $(wildcard $(ARDUINODIR)/libraries/*)), \
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LIBRARIES := $(filter $(notdir $(wildcard $(addsuffix /*, $(LIBRARYPATH)))), \
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$(shell sed -ne "s/^ *\# *include *[<\"]\(.*\)\.h[>\"]/\1/p" $(SOURCES)))
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# no serial device? make a poor attempt to detect an arduino
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ifeq "$(SERIALDEV)" ""
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SERIALDEV := $(firstword $(wildcard \
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/dev/ttyACM? /dev/ttyUSB? /dev/tty.usbserial* /dev/tty.usbmodem*))
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246
findsoftware = $(firstword $(wildcard $(addsuffix /$(1), $(AVRTOOLSPATH))))
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CC := $(call findsoftware,avr-gcc)
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AVRDUDE := $(call findsoftware,avrdude)
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AVRSIZE := $(call findsoftware,avr-size)
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ARDUINOCOREDIR := $(ARDUINODIR)/hardware/arduino/cores/arduino
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LIBRARYDIRS := $(foreach lib, $(LIBRARIES), \
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$(firstword $(wildcard $(addsuffix /$(lib), $(LIBRARYPATH)))))
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LIBRARYDIRS += $(addsuffix /utility, $(LIBRARYDIRS))
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TARGET := $(if $(TARGET),$(TARGET),a.out)
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OBJECTS := $(addsuffix .o, $(basename $(SOURCES)))
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DEPFILES := $(patsubst %, .dep/%.dep, $(SOURCES))
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ARDUINOCOREDIR := $(ARDUINODIR)/hardware/arduino/cores/arduino
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ARDUINOLIB := .lib/arduino.a
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ARDUINOLIBLIBSDIR := $(ARDUINODIR)/libraries
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ARDUINOLIBLIBSPATH := $(foreach lib, $(LIBRARIES), \
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$(ARDUINODIR)/libraries/$(lib)/ $(ARDUINODIR)/libraries/$(lib)/utility/ )
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ARDUINOLIBOBJS := $(foreach dir, $(ARDUINOCOREDIR) $(ARDUINOLIBLIBSPATH), \
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ARDUINOLIBOBJS := $(foreach dir, $(ARDUINOCOREDIR) $(LIBRARYDIRS), \
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$(patsubst %, .lib/%.o, $(wildcard $(addprefix $(dir)/, *.c *.cpp))))
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BOOTLOADERHEX := $(addprefix \
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$(ARDUINODIR)/hardware/arduino/bootloaders/$(BOARD_BOOTLOADER_PATH)/, \
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$(BOARD_BOOTLOADER_FILE))
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# avrdude confifuration
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ifeq "$(AVRDUDECONF)" ""
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ifeq "$(AVRDUDE)" "$(ARDUINODIR)/hardware/tools/avr/bin/avrdude"
210
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AVRDUDECONF := $(ARDUINODIR)/hardware/tools/avr/etc/avrdude.conf
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ifneq "$(MAKECMDGOALS)" "boards"
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ifneq "$(MAKECMDGOALS)" "clean"
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$(error BOARD is unset. Type 'make boards' to see possible values)
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# obtain board parameters from the arduino boards.txt file
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BOARDS_FILE := $(ARDUINODIR)/hardware/arduino/boards.txt
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$(shell sed -ne "s/$(BOARD).build.mcu=\(.*\)/\1/p" $(BOARDS_FILE))
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BOARD_BUILD_FCPU := \
230
$(shell sed -ne "s/$(BOARD).build.f_cpu=\(.*\)/\1/p" $(BOARDS_FILE))
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BOARD_BUILD_VARIANT := \
232
$(shell sed -ne "s/$(BOARD).build.variant=\(.*\)/\1/p" $(BOARDS_FILE))
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BOARD_UPLOAD_SPEED := \
234
$(shell sed -ne "s/$(BOARD).upload.speed=\(.*\)/\1/p" $(BOARDS_FILE))
235
BOARD_UPLOAD_PROTOCOL := \
236
$(shell sed -ne "s/$(BOARD).upload.protocol=\(.*\)/\1/p" $(BOARDS_FILE))
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$(shell sed -ne "s/$(BOARD).build.vid=\(.*\)/\1/p" $(BOARDS_FILE))
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$(shell sed -ne "s/$(BOARD).build.pid=\(.*\)/\1/p" $(BOARDS_FILE))
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ifeq "$(BOARD_BUILD_MCU)" ""
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ifneq "$(MAKECMDGOALS)" "boards"
245
ifneq "$(MAKECMDGOALS)" "clean"
246
$(error BOARD is invalid. Type 'make boards' to see possible values)
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CPPFLAGS += -Os -Wall -fno-exceptions -ffunction-sections -fdata-sections
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CPPFLAGS += -funsigned-char -funsigned-bitfields -fpack-struct -fshort-enums
256
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CPPFLAGS += -DUSB_VID=$(BOARD_USB_VID) -DUSB_PID=$(BOARD_USB_PID)
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CPPFLAGS += -I. -Iutil -Iutility -I $(ARDUINOCOREDIR)
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CPPFLAGS += -I $(ARDUINODIR)/hardware/arduino/variants/$(BOARD_BUILD_VARIANT)/
259
CPPFLAGS += $(addprefix -I $(ARDUINODIR)/libraries/, $(LIBRARIES))
260
CPPFLAGS += $(patsubst %, -I $(ARDUINODIR)/libraries/%/utility, $(LIBRARIES))
289
CPPFLAGS += $(addprefix -I , $(LIBRARYDIRS))
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290
CPPDEPFLAGS = -MMD -MP -MF .dep/$<.dep
262
291
CPPINOFLAGS := -x c++ -include $(ARDUINOCOREDIR)/Arduino.h
263
292
AVRDUDEFLAGS += $(addprefix -C , $(AVRDUDECONF)) -DV
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356
size: $(TARGET).elf
324
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echo && $(AVRSIZE) --format=avr --mcu=$(BOARD_BUILD_MCU) $(TARGET).elf
360
@echo "Burning bootloader to board..."
361
@test -n "$(SERIALDEV)" || { \
362
echo "error: SERIALDEV could not be determined automatically." >&2; \
364
@test 0 -eq $(SERIALDEVGUESS) || { \
365
echo "*GUESSING* at serial device:" $(SERIALDEV); \
367
stty $(STTYFARG) $(SERIALDEV) hupcl
368
$(AVRDUDE) $(AVRDUDEFLAGS) -U lock:w:$(BOARD_BOOTLOADER_UNLOCK):m
369
$(AVRDUDE) $(AVRDUDEFLAGS) -eU lfuse:w:$(BOARD_BOOTLOADER_LFUSES):m
370
$(AVRDUDE) $(AVRDUDEFLAGS) -U hfuse:w:$(BOARD_BOOTLOADER_HFUSES):m
371
ifneq "$(BOARD_BOOTLOADER_EFUSES)" ""
372
$(AVRDUDE) $(AVRDUDEFLAGS) -U efuse:w:$(BOARD_BOOTLOADER_EFUSES):m
374
ifneq "$(BOOTLOADERHEX)" ""
375
$(AVRDUDE) $(AVRDUDEFLAGS) -U flash:w:$(BOOTLOADERHEX):i
377
$(AVRDUDE) $(AVRDUDEFLAGS) -U lock:w:$(BOARD_BOOTLOADER_LOCK):m
326
379
# building the target
328
381
$(TARGET).hex: $(TARGET).elf