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# $ ln -s ~/src/arduino.mk Makefile
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# The Arduino software (version 1.0 or later) is required. If you are using
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# Debian (or a derivative), type `apt-get install arduino`. Otherwise, you
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# will have to download the Arduino software manually from http://arduino.cc/.
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# It is suggested that you install it at ~/opt/arduino if you are unsure.
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# If you downloaded the Arduino software manually and unpacked it somewhere
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# other than ~/opt/arduino, you will need to set up ARDUINODIR to be the path
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# where you unpacked it. (If unset, ARDUINODIR defaults to ~/opt/arduino and
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# then /usr/share/arduino, in that order.) You might be best to set this in
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# You also need to set up a couple of environment variables. ARDUINODIR should
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# be set to the path where you unpacked the arduino software from arduino.cc
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# (it defaults to ~/opt/arduino if unset). You might be best to set this in
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# your ~/.profile by adding something like this:
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# export ARDUINODIR=~/somewhere/arduino-1.0
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# You will also need to set BOARD to the type of Arduino you're building for.
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# Type `make boards` for a list of acceptable values. You could set a default
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# in your ~/.profile if you want, but it is suggested that you specify this at
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# build time, especially if you work with different types of Arduino. For
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# You will also need to set BOARD to the type of arduino you're using. This
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# can be done when running make (or you could set a default in ~/.profile and
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# override it as necessary). For example:
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# $ export BOARD=uno
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# You may also need to set SERIALDEV if it is not detected correctly.
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# The presence of a .ino (or .pde) file causes the arduino.mk to automatically
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# The presence of a .ino or .pde file causes the arduino.mk to automatically
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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.
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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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# Here is a complete list of configuration parameters:
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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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# 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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# 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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# ARDUINODIR The path where you have installed/unpacked the arduino software
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# (from http://arduino.cc/)
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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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# 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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# connected arduino's serial device.
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# TARGET The name of the target file. This is set automatically if a
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# .ino or .pde is found, but it is not necessary to set it
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# SOURCES A list of all source files of whatever language. The language
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# type is determined by the file extension. This is set
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# automatically if a .ino (or .pde) is found.
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# automatically if a .ino or .pde is found.
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# TARGET The name of the target file. This is set automatically if a
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# .ino (or .pde) is found, but it is not necessary to set it
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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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# This makefile also defines the following goals for use on the command line
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# when you run make:
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# all This is the default if no goal is specified. It builds the
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# target and uploads it.
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# target Builds the target.
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# upload Uploads the last built target to an attached Arduino.
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# upload Uploads the last built target to an attached arduino.
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# clean Deletes files created during the build.
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# BOARD environment variable appropriately.
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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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# equivalent to the arduino serial monitor.
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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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#_______________________________________________________________________________
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# default arduino software directory, check software exists
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# The full path to the arduino software, from arduino.cc
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ifndef ARDUINODIR
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ARDUINODIR := $(firstword $(wildcard ~/opt/arduino /usr/share/arduino))
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ARDUINODIR := $(wildcard ~/opt/arduino)
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ifeq "$(wildcard $(ARDUINODIR)/hardware/arduino/boards.txt)" ""
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# check arduino software
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ifeq ($(wildcard $(ARDUINODIR)/hardware/arduino/boards.txt), )
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$(error ARDUINODIR is not set correctly; arduino software not found)
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# default arduino version
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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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# default path to find libraries
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LIBRARYPATH ?= libraries libs $(ARDUINODIR)/libraries
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INOFILE := $(wildcard *.ino *.pde)
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ifneq "$(words $(INOFILE))" "1"
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ifneq ($(words $(INOFILE)), 1)
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$(error There is more than one .pde or .ino file in this directory!)
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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 *.C) \
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$(wildcard $(addprefix util/, *.c *.cc *.cpp *.C)) \
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$(wildcard $(addprefix utility/, *.c *.cc *.cpp *.C))
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$(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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# automatically determine included libraries
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LIBRARIES := $(filter $(notdir $(wildcard $(addsuffix /*, $(LIBRARYPATH)))), \
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ARDUINOLIBSAVAIL := $(notdir $(wildcard $(ARDUINODIR)/libraries/*))
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LIBRARIES := $(filter $(ARDUINOLIBSAVAIL), \
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$(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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findsoftware = $(firstword $(wildcard $(addsuffix /$(1), $(AVRTOOLSPATH))))
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CC := $(call findsoftware,avr-gcc)
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CXX := $(call findsoftware,avr-g++)
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LD := $(call findsoftware,avr-ld)
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AR := $(call findsoftware,avr-ar)
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OBJCOPY := $(call findsoftware,avr-objcopy)
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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, $(LIBRARYDIRS))
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# no target? use default
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# no serial device? attempt to detect an arduino
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ifeq ($(SERIALDEV), )
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SERIALDEV := $(firstword $(wildcard /dev/ttyACM? /dev/ttyUSB?))
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# no board? oh dear...
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ifneq "$(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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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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ARDUINOLIB := .lib/arduino.a
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ARDUINOLIBOBJS := $(foreach dir, $(ARDUINOCOREDIR) $(LIBRARYDIRS), \
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$(patsubst %, .lib/%.o, $(wildcard $(addprefix $(dir)/, *.c *.cpp))))
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# avrdude confifuration
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ifeq "$(AVRDUDECONF)" ""
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ifeq "$(AVRDUDE)" "$(ARDUINODIR)/hardware/tools/avr/bin/avrdude"
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AVRDUDECONF := $(ARDUINODIR)/hardware/tools/avr/etc/avrdude.conf
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AVRDUDECONF := $(wildcard $(AVRDUDE).conf)
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ifneq "$(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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ARDUINOSRCDIR := $(ARDUINODIR)/hardware/arduino/cores/arduino
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ARDUINOLIBSDIR := $(ARDUINODIR)/libraries
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ARDUINOLIB := _arduino.a
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ARDUINOLIBTMP := $(ARDUINOLIB).tmp
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ARDUINOLIBOBJS := $(patsubst %, $(ARDUINOLIBTMP)/%.o, $(basename $(notdir \
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$(wildcard $(addprefix $(ARDUINOSRCDIR)/, *.c *.cpp)))))
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ARDUINOLIBOBJS += $(foreach lib, $(LIBRARIES), \
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$(patsubst %, $(ARDUINOLIBTMP)/%.o, $(basename $(notdir \
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$(wildcard $(addprefix $(ARDUINOLIBSDIR)/$(lib)/, *.c *.cpp)) \
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$(wildcard $(addprefix $(ARDUINOLIBSDIR)/$(lib)/utility/, *.c *.cpp)) ))))
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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).upload.speed=\(.*\)/\1/p" $(BOARDS_FILE))
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BOARD_UPLOAD_PROTOCOL := \
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$(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 "$(MAKECMDGOALS)" "boards"
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ifneq "$(MAKECMDGOALS)" "clean"
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$(error BOARD is invalid. Type 'make boards' to see possible values)
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# software (prioritise binaries that came with arduino software)
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FIND_SOFTWARE = $(firstword $(wildcard \
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$(ARDUINODIR)/hardware/tools/$(1) \
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$(ARDUINODIR)/hardware/tools/avr/bin/$(1) \
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CC := $(call FIND_SOFTWARE,avr-gcc)
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CXX := $(call FIND_SOFTWARE,avr-g++)
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LD := $(call FIND_SOFTWARE,avr-ld)
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AR := $(call FIND_SOFTWARE,avr-ar)
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OBJCOPY := $(call FIND_SOFTWARE,avr-objcopy)
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AVRDUDE := $(call FIND_SOFTWARE,avrdude)
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CPPFLAGS += -Os -Wall -fno-exceptions -ffunction-sections -fdata-sections
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CPPFLAGS += -funsigned-char -funsigned-bitfields -fpack-struct -fshort-enums
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CPPFLAGS += -mmcu=$(BOARD_BUILD_MCU)
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CPPFLAGS += -DF_CPU=$(BOARD_BUILD_FCPU) -DARDUINO=$(ARDUINOCONST)
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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)/
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CPPFLAGS += $(addprefix -I , $(LIBRARYDIRS))
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CPPDEPFLAGS = -MMD -MP -MF .dep/$<.dep
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CPPINOFLAGS := -x c++ -include $(ARDUINOCOREDIR)/Arduino.h
282
AVRDUDEFLAGS += $(addprefix -C , $(AVRDUDECONF)) -DV
207
CPPFLAGS = -Os -Wall -fno-exceptions -ffunction-sections -fdata-sections
208
CPPFLAGS += -mmcu=$(BOARD_BUILD_MCU) -DF_CPU=$(BOARD_BUILD_FCPU)
209
CPPFLAGS += -I. -Iutil -Iutility -I$(ARDUINOSRCDIR)
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CPPFLAGS += -I$(ARDUINODIR)/hardware/arduino/variants/$(BOARD_BUILD_VARIANT)/
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CPPFLAGS += $(addprefix -I$(ARDUINODIR)/libraries/, $(LIBRARIES))
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CPPFLAGS += $(patsubst %, -I$(ARDUINODIR)/libraries/%/utility, $(LIBRARIES))
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AVRDUDEFLAGS = -C $(ARDUINODIR)/hardware/tools/avrdude.conf -DV
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AVRDUDEFLAGS += -p $(BOARD_BUILD_MCU) -P $(SERIALDEV)
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AVRDUDEFLAGS += -c $(BOARD_UPLOAD_PROTOCOL) -b $(BOARD_UPLOAD_SPEED)
285
LINKFLAGS += -Os -Wl,--gc-sections -mmcu=$(BOARD_BUILD_MCU)
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# figure out which arg to use with stty (for OS X, GNU and busybox stty)
288
STTYFARG := $(shell stty --help 2>&1 | \
289
grep -q 'illegal option' && echo -f || echo -F)
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# include dependencies
292
ifneq "$(MAKECMDGOALS)" "clean"
216
LINKFLAGS = -Os -Wl,--gc-sections -mmcu=$(BOARD_BUILD_MCU)
297
219
.DEFAULT_GOAL := all
299
221
#_______________________________________________________________________________
302
.PHONY: all target upload clean boards monitor size
224
.PHONY: all target upload clean boards monitor
306
228
target: $(TARGET).hex
309
231
@echo "\nUploading to board..."
310
232
@test -n "$(SERIALDEV)" || { \
311
233
echo "error: SERIALDEV could not be determined automatically." >&2; \
313
@test 0 -eq $(SERIALDEVGUESS) || { \
314
echo "*GUESSING* at serial device:" $(SERIALDEV); \
316
stty $(STTYFARG) $(SERIALDEV) hupcl
235
stty -F $(SERIALDEV) hupcl
317
236
$(AVRDUDE) $(AVRDUDEFLAGS) -U flash:w:$(TARGET).hex:i
321
240
rm -f $(TARGET).elf $(TARGET).hex $(ARDUINOLIB) *~
241
rm -rf $(ARDUINOLIBTMP)
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@echo Available values for BOARD:
326
@sed -nEe '/^#/d; /^[^.]+\.name=/p' $(BOARDS_FILE) | \
327
sed -Ee 's/([^.]+)\.name=(.*)/\1 \2/' \
328
-e 's/(.{12}) *(.*)/\1 \2/'
245
@sed -ne '/^#/d;s/^\(.*\).name=\(.*\)/\1 \2/;T' \
246
-e 's/\(.\{12\}\) *\(.*\)/\1 \2/;p' $(BOARDS_FILE)
331
249
@test -n "$(SERIALDEV)" || { \
350
262
.INTERMEDIATE: $(TARGET).elf
352
264
$(TARGET).elf: $(ARDUINOLIB) $(OBJECTS)
353
$(CC) $(LINKFLAGS) $(OBJECTS) $(ARDUINOLIB) -lm -o $@
356
mkdir -p .dep/$(dir $<)
357
$(COMPILE.c) $(CPPDEPFLAGS) -o $@ $<
360
mkdir -p .dep/$(dir $<)
361
$(COMPILE.cpp) $(CPPDEPFLAGS) -o $@ $<
364
mkdir -p .dep/$(dir $<)
365
$(COMPILE.cpp) $(CPPDEPFLAGS) -o $@ $<
368
mkdir -p .dep/$(dir $<)
369
$(COMPILE.cpp) $(CPPDEPFLAGS) -o $@ $<
265
$(CC) $(LINKFLAGS) $(OBJECTS) $(ARDUINOLIB) -o $@
372
mkdir -p .dep/$(dir $<)
373
$(COMPILE.cpp) $(CPPDEPFLAGS) -o $@ $(CPPINOFLAGS) $<
268
$(COMPILE.cpp) -o $@ -x c++ -include $(ARDUINOSRCDIR)/Arduino.h $<
376
mkdir -p .dep/$(dir $<)
377
$(COMPILE.cpp) $(CPPDEPFLAGS) -o $@ $(CPPINOFLAGS) $<
271
$(COMPILE.cpp) -o $@ -x c++ -include $(ARDUINOSRCDIR)/Arduino.h $<
379
273
# building the arduino library
381
275
$(ARDUINOLIB): $(ARDUINOLIBOBJS)
386
$(COMPILE.c) -o $@ $<
390
$(COMPILE.cpp) -o $@ $<
394
$(COMPILE.cpp) -o $@ $<
277
rm -rf $(ARDUINOLIBTMP)
279
.INTERMEDIATE: $(ARDUINOLIBOBJS)
281
$(ARDUINOLIBTMP)/%.o: $(ARDUINOSRCDIR)/%.c
282
@test -d $(ARDUINOLIBTMP) || mkdir $(ARDUINOLIBTMP)
283
$(COMPILE.c) -o $@ $<
285
$(ARDUINOLIBTMP)/%.o: $(ARDUINOSRCDIR)/%.cpp
286
@test -d $(ARDUINOLIBTMP) || mkdir $(ARDUINOLIBTMP)
287
$(COMPILE.cpp) -o $@ $<
289
$(ARDUINOLIBTMP)/%.o: $(ARDUINODIR)/libraries/*/%.c
290
@test -d $(ARDUINOLIBTMP) || mkdir $(ARDUINOLIBTMP)
291
$(COMPILE.c) -o $@ $<
293
$(ARDUINOLIBTMP)/%.o: $(ARDUINODIR)/libraries/*/%.cpp
294
@test -d $(ARDUINOLIBTMP) || mkdir $(ARDUINOLIBTMP)
295
$(COMPILE.cpp) -o $@ $<
297
$(ARDUINOLIBTMP)/%.o: $(ARDUINODIR)/libraries/*/utility/%.c
298
@test -d $(ARDUINOLIBTMP) || mkdir $(ARDUINOLIBTMP)
299
$(COMPILE.c) -o $@ $<
301
$(ARDUINOLIBTMP)/%.o: $(ARDUINODIR)/libraries/*/utility/%.cpp
302
@test -d $(ARDUINOLIBTMP) || mkdir $(ARDUINOLIBTMP)
398
303
$(COMPILE.cpp) -o $@ $<