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# This is a general purpose makefile for use with Arduino hardware and
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# software. It works with the arduino-1.0 release and requires that software
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# to be downloaded separately (see http://arduino.cc/). To download the latest
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# version of this makefile, visit the following website, where you can also
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# find more information and documentation on it's use. The following text can
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# only really be considered a reference to it's use.
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# software. It works with the arduino-1.0 and later software releases. It
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# should work GNU/Linux and OS X. To download the latest version of this
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# makefile visit the following website where you can also find documentation on
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# it's use. (The following text can only really be considered a reference.)
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# http://ed.am/dev/make/arduino-mk
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# This makefile can be used as a drop-in replacement for the Arduino IDE's
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# build system. To use it, save arduino.mk somewhere (I keep mine at
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# ~/src/arduino.mk) and create a symlink to it in your project directory named
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# "Makefile". For example:
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# build system. To use it, just copy arduino.mk in to your project directory.
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# Or, you could save it somewhere (I keep mine at ~/src/arduino.mk) and create
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# a symlink to it in your project directory, named "Makefile". For example:
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# $ ln -s ~/src/arduino.mk Makefile
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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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# The Arduino software (version 1.0 or later) is required. On GNU/Linux you
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# can probably install the software from your package manager. If you are
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# using Debian (or a derivative), try `apt-get install arduino`. Otherwise,
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# you can download the Arduino software manually from http://arduino.cc/. It
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# is suggested that you install it at ~/opt/arduino (or /Applications on OS X)
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# If you downloaded the Arduino software manually and unpacked it somewhere
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# other than ~/opt/arduino (or /Applications), you will need to set up the
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# ARDUINODIR environment variable to be the path where you unpacked it. (If
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# unset, ARDUINODIR defaults to some sensible places). You could 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 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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# For each project, you will also need to set BOARD to the type of Arduino
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# you're building for. Type `make boards` for a list of acceptable values.
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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.
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# that have been #included. Note, there can only be one .ino (or .pde) file in
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# a project directory and if you want to be compatible with the Arduino IDE, it
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# should be called the same as the directory name.
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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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# (There is no need to define TARGET). Here is an example Makefile:
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# (There is no need to define TARGET). You can also specify the BOARD here, if
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# the project has a specific one. Here is an example Makefile:
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# SOURCES := main.cc other.cc
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# LIBRARIES := EEPROM
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# include ~/src/arduino.mk
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# Here is a complete list of configuration parameters:
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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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# 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 avrdude is. If set empty, no avrdude.conf is
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# passed to avrdude (so 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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# BOARD Specify a target board type. Run `make boards` to see available
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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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# 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" (in the project directory), then your sketchbook
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# "libraries" directory, then the Arduino libraries directory.
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# SERIALDEV The POSIX device name of the serial device that is the Arduino.
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# If unspecified, an attempt is made to guess the name of a
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# connected Arduino's serial device, which may work in some cases.
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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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# 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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# .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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# 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 target (building it, as necessary) to an attached
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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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# equivalent to the Arduino serial monitor.
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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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#_______________________________________________________________________________
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# The full path to the arduino software, from arduino.cc
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# default arduino software directory, check software exists
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ifndef ARDUINODIR
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ARDUINODIR := $(wildcard ~/opt/arduino)
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ARDUINODIR := $(firstword $(wildcard ~/opt/arduino /usr/share/arduino \
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/Applications/Arduino.app/Contents/Resources/Java \
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$(HOME)/Applications/Arduino.app/Contents/Resources/Java))
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# check arduino software
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ifeq ($(wildcard $(ARDUINODIR)/hardware/arduino/boards.txt), )
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ifeq "$(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)) $(ARDUINODIR)/hardware/tools \
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$(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_BUILD_CORE := $(call readboardsparam,build.core)
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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 := $(firstword $(wildcard \
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$(HOME)/.arduino/preferences.txt $(HOME)/Library/Arduino/preferences.txt))
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ifneq "$(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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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 target
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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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# automatically determine included libraries
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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" $(SOURCES)))
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# no target? use default
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# no serial device? attempt to detect an arduino
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ifeq ($(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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$(wildcard *.c *.cc *.cpp *.C *.s *.S) \
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$(wildcard $(addprefix util/, *.c *.cc *.cpp *.C *.s *.S)) \
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$(wildcard $(addprefix utility/, *.c *.cc *.cpp *.C *.s *.S))
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# automatically determine library directories (to pull library sources in from)
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# by matching included headers in poject sources to headers that exist in the
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# roots of any library directories, giving priority to libraries in the order
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# they're in LIBRARYPATH, and then to the alphabetically-greater named library
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# (this is a really stupid way of doing it, but it's how the IDE works -- if
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# it's causing problems, you can override it by setting LIBRARIES manually)
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$(shell sed -nre "s/^\s*\#\s*include\s*[<\"](\S+\.h)[>\"].*/\1/p" \
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reverse = $(if $(1),$(call reverse,$(wordlist 2,$(words $(1)),$(1)))) \
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LIBRARYHEADERS := $(foreach dir, $(LIBRARYPATH), \
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$(call reverse, $(sort $(wildcard $(dir)/*))))
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LIBRARYHEADERS := $(foreach dir, $(LIBRARYHEADERS), $(wildcard $(dir)/*.h))
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LIBRARYDIRS := $(foreach hdr, $(INCLUDEDHEADERS), $(patsubst %/$(hdr), %, \
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$(firstword $(filter %/$(hdr), $(LIBRARYHEADERS)))))
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# if LIBRARIES is specified, use it
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ifneq "$(LIBRARIES)" ""
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LIBRARYDIRS := $(foreach lib, $(LIBRARIES), \
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$(firstword $(wildcard $(addsuffix /$(lib), $(LIBRARYPATH)))))
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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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AS := $(call findsoftware,avr-as)
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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 := $(ARDUINODIR)/hardware/arduino/cores/$(BOARD_BUILD_CORE)
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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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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
174
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).build.mcu=\(.*\)/\1/p" $(BOARDS_FILE))
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BOARD_BUILD_FCPU := \
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$(shell sed -ne "s/$(BOARD).build.f_cpu=\(.*\)/\1/p" $(BOARDS_FILE))
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BOARD_BUILD_VARIANT := \
188
$(shell sed -ne "s/$(BOARD).build.variant=\(.*\)/\1/p" $(BOARDS_FILE))
189
BOARD_UPLOAD_SPEED := \
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$(shell sed -ne "s/$(BOARD).upload.speed=\(.*\)/\1/p" $(BOARDS_FILE))
191
BOARD_UPLOAD_PROTOCOL := \
192
$(shell sed -ne "s/$(BOARD).upload.protocol=\(.*\)/\1/p" $(BOARDS_FILE))
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# software (prioritise binaries that came with arduino software)
195
FIND_SOFTWARE = $(firstword $(wildcard \
196
$(ARDUINODIR)/hardware/tools/$(1) \
197
$(ARDUINODIR)/hardware/tools/avr/bin/$(1) \
199
CC := $(call FIND_SOFTWARE,avr-gcc)
200
CXX := $(call FIND_SOFTWARE,avr-g++)
201
LD := $(call FIND_SOFTWARE,avr-ld)
202
AR := $(call FIND_SOFTWARE,avr-ar)
203
OBJCOPY := $(call FIND_SOFTWARE,avr-objcopy)
204
AVRDUDE := $(call FIND_SOFTWARE,avrdude)
292
DEPFILES := $(patsubst %, .dep/%.dep, $(SOURCES))
293
ARDUINOLIB := .lib/arduino.a
294
ARDUINOLIBOBJS := $(foreach dir, $(ARDUINOCOREDIR) $(LIBRARYDIRS), \
295
$(patsubst %, .lib/%.o, $(wildcard $(addprefix $(dir)/, \
296
*.c *.cc *.cpp *.C *.s *.S))))
297
BOOTLOADERHEX := $(addprefix \
298
$(ARDUINODIR)/hardware/arduino/bootloaders/$(BOARD_BOOTLOADER_PATH)/, \
299
$(BOARD_BOOTLOADER_FILE))
301
# avrdude confifuration
302
ifeq "$(AVRDUDECONF)" ""
303
ifeq "$(AVRDUDE)" "$(ARDUINODIR)/hardware/tools/avr/bin/avrdude"
304
AVRDUDECONF := $(ARDUINODIR)/hardware/tools/avr/etc/avrdude.conf
306
AVRDUDECONF := $(wildcard $(AVRDUDE).conf)
207
CPPFLAGS = -Os -Wall -fno-exceptions -ffunction-sections -fdata-sections
208
CPPFLAGS += -mmcu=$(BOARD_BUILD_MCU) -DF_CPU=$(BOARD_BUILD_FCPU)
209
CPPFLAGS += -I. -Iutil -Iutility -I$(ARDUINOSRCDIR)
210
CPPFLAGS += -I$(ARDUINODIR)/hardware/arduino/variants/$(BOARD_BUILD_VARIANT)/
211
CPPFLAGS += $(addprefix -I$(ARDUINODIR)/libraries/, $(LIBRARIES))
212
CPPFLAGS += $(patsubst %, -I$(ARDUINODIR)/libraries/%/utility, $(LIBRARIES))
213
AVRDUDEFLAGS = -C $(ARDUINODIR)/hardware/tools/avrdude.conf -DV
214
AVRDUDEFLAGS += -p $(BOARD_BUILD_MCU) -P $(SERIALDEV)
215
AVRDUDEFLAGS += -c $(BOARD_UPLOAD_PROTOCOL) -b $(BOARD_UPLOAD_SPEED)
216
LINKFLAGS = -Os -Wl,--gc-sections -mmcu=$(BOARD_BUILD_MCU)
311
CPPFLAGS += -Os -Wall -fno-exceptions -ffunction-sections -fdata-sections
312
CPPFLAGS += -funsigned-char -funsigned-bitfields -fpack-struct -fshort-enums
313
CPPFLAGS += -mmcu=$(BOARD_BUILD_MCU)
314
CPPFLAGS += -DF_CPU=$(BOARD_BUILD_FCPU) -DARDUINO=$(ARDUINOCONST)
315
CPPFLAGS += -DUSB_VID=$(BOARD_USB_VID) -DUSB_PID=$(BOARD_USB_PID)
316
CPPFLAGS += -I. -Iutil -Iutility -I $(ARDUINOCOREDIR)
317
CPPFLAGS += -I $(ARDUINODIR)/hardware/arduino/variants/$(BOARD_BUILD_VARIANT)/
318
CPPFLAGS += $(addprefix -I , $(LIBRARYDIRS))
319
CPPDEPFLAGS = -MMD -MP -MF .dep/$<.dep
320
CPPINOFLAGS := -x c++ -include $(ARDUINOCOREDIR)/Arduino.h
321
AVRDUDEFLAGS += $(addprefix -C , $(AVRDUDECONF)) -DV
322
AVRDUDEFLAGS += -p$(BOARD_BUILD_MCU) -P$(SERIALDEV) -c$(BOARD_UPLOAD_PROTOCOL)
323
AVRDUDEFLAGS += $(addprefix -b, $(BOARD_UPLOAD_SPEED))
324
LINKFLAGS += -Os -Wl,--gc-sections -mmcu=$(BOARD_BUILD_MCU)
326
# figure out which arg to use with stty (for OS X, GNU and busybox stty)
327
STTYFARG := $(shell stty --help 2>&1 | \
328
grep -q 'illegal option' && echo -f || echo -F)
330
# include dependencies
331
ifneq "$(MAKECMDGOALS)" "clean"
219
336
.DEFAULT_GOAL := all