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# http://ed.am/dev/make/arduino-mk
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# To install, it is suggested that you keep arduino.mk somewhere and either
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# symlink to it or include it in your make files. I keep mine at
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# ~/src/arduino.mk. You will need to alter the value of the ARDUINODIR
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# variable (below) to be the path where you have unpacked the arduino software
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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. Simply create a symlink to it under the name "Makefile" and
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# run make (remembering to specify an ARDUINODIR and BOARD, as described
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# below). You would create the symlink like like so:
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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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# $ ln -s ~/src/arduino.mk Makefile
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# You also need to set up a couple of environment varibales. 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 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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# iverride it as necessary). For example:
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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 atuomatically
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# determine va;ues for SOURCES, TARGET and LIBRARIES. Any .c, .cc and .cpp
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# files in the project directory (or a "util" or "utility" subdirectory) are
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# automatically included in the build and are scanned for libraries that have
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# files in the project directory (or any "util" or "utility" subdirectoried)
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# are automatically included in the build and are scanned for Atduino libraries
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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 LIBRARARIES and then includes arduino.mk.
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# (There is no need to define TARGET). You will also be expected to provide a
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# main() function, for example in main.cc, which may or may not duplicate the
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# functionality of the default main() that calls init() and loop(). Here is an
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# (There is no need to define TARGET). Here is an example Makefile:
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# SOURCES := main.cc foo.cc
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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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# A complete list of all the settings you can use in your Makefile follows
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# shortly. It should be noted, however, that some variables are better
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# specified in the environment (or on the command line) than in your Makefile.
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# Specifically, the ARDUINODIR, BOARD and, if it is not automatically detected,
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# When running make, you might want to specify the board and path to your
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# installation of the arduino software, like this:
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# $ export ARDUINODIR=~/opt/arduino
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# $ export BOARD=pro5v
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# For a list of available board types, run `make boards`.
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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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# BOARD Specify a target board type.
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# BOARD Specify a target board type. Run `make boards` to see available
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# SERIALDEV The unix device of the device where the arduino can be found.
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# If unspecified, an attempt is made to determine the name of a
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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 general-purpose makefile also defines the following goals for
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# use on the command line when you run make:
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# This makefile also defines the following goals for use on the command line
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# all This is the default if no goal is specified. It builds the
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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 of your Makefile.
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# upload Uploads the target to an attached arduino.
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# clean Deletes temporary files.
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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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# clean Deletes files created during the build.
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# boards Display a list of available board names, so that you can set the
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# BOARD environment variable appropriately.
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OBJECTS := $(addsuffix .o, $(basename $(SOURCES)))
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ARDUINOSRCDIR := $(ARDUINODIR)/hardware/arduino/cores/arduino
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ARDUINOLIB := _arduino.a
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ARDUINOLIBTMP := _arduino.a.tmp
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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 $(ARDUINODIR)/libraries/$(lib)/, *.c *.cpp))))))
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$(wildcard $(addprefix $(ARDUINODIR)/libraries/$(lib)/, \
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*.c *.cpp utility/*.c utility/*.cpp ))))))
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# obtain board parameters from the arduino boards.txt file
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BOARDS_FILE := $(ARDUINODIR)/hardware/arduino/boards.txt
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BOARD_UPLOAD_PROTOCOL := \
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$(shell sed -ne "s/$(BOARD).upload.protocol=\(.*\)/\1/p" $(BOARDS_FILE))
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OBJCOPY := avr-objcopy
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# prefer software that comes with arduino
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TOOLSDIRPREFIX = $(wildcard $(ARDUINODIR)/hardware/tools/)
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TOOLSAVRDIRPREFIX = $(wildcard $(ARDUINODIR)/hardware/tools/avr/)
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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