/make/arduino-mk

#_______________________________________________________________________________

#

#                         edam's arduino makefile

#_______________________________________________________________________________

#                                                                    version 0.1

#

# Copyright (c) 2011 Tim Marston <tim@ed.am>.

#

# Permission is hereby granted, free of charge, to any person obtaining a copy

# of this software and associated documentation files (the "Software"), to deal

# in the Software without restriction, including without limitation the rights

# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell

# copies of the Software, and to permit persons to whom the Software is

# furnished to do so, subject to the following conditions:

#

# The above copyright notice and this permission notice shall be included in

# all copies or substantial portions of the Software.

#

# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR

# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,

# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE

# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER

# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,

# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN

# THE SOFTWARE.

#

#_______________________________________________________________________________

#

#

# This is a general purpose makefile for use with Arduino (arduino.cc)

# hardware and software.  It works with the arduino-1.0 release and

# requires that to be downloaded separately.  It can be downloaded

# from http://ed.am/dev/make/arduino-makefile where you can also find

# more information and documentation on it's use.  The following text

# can only really be considered a reference to it's use.

#

# There are two ways to use this file, an automatic mode and a manual

# mode.  In automatic mode, you simply copy this makefile to your

# arduino project directory, rename it "Makefile" and type make.  The

# project directory is expected to contain an .ino or .pde file, which

# will automatically be used automatically, along with any other .c,

# .cc or .cpp files in the project directory and any subdirectory

# named "utility".  In this way, this makefile should act as a drop-in

# replacement for the Arduino IDE's build process and can build a

# project automatically from the files in a project directory.

#

# Alternatively, you can manually specify what files should be

# inclided in a build.  To use this makefile manually, you might be

# better to keep it somewhere and include it in your project's

# Makefile after having defined certain parameters that control the

# build.  As an example, consider the following Makefile:

#

#       TARGET = my_program

#       SOURCES = main.cc foo.cc

#		BOARD = nano

#		SERIALDEV = /dev/ttyACM0

#       include ~/src/arduino.mk

#

# In both manual and automatic modes, the standard Arduino main.cpp's

# main() is included, which expects to be able to call init() and

# loop() in your code.  The main difference is that, in manual mode,

# these would typically be placed in a .cc or .cpp file.

#

# When using manual mode, the following variables can be used:

#

# TARGET       The name of the target file.  This is typically the same name

#              as the project directory for an arduino project and, if

#              unspecified, that is used as a default.

#

# SOURCES      A list of all source files of whatever language. The language

#              type is determined by the file extension.

#

# BOARD        Specify a target board type.  These are defined in boards.txt,

#              which came with your arduino installation.  If unspecified,

#              a default is used.  (See below).

#

# SERIALDEV    The unix device of the device where the arduino can be found.

#              If unspecified, a default is used.  (See below).

#

# This general-purpose makefile also defines the following goals for use on the

# command line when you run make:

#

# all          This is the default if no goal is specified. It builds the

#              target and uploads it.

#

# target       Builds the target of your Makefile.

#

# upload       Uploads the target to an attached arduino.

#

# clean        Deletes temporary files.

#

# <file>       Builds the specified file, either an object file or the target,

#              from those that that would be built for the project.

#

#_______________________________________________________________________________

#                                                                       SETTINGS

# The full path to the arduino software, from arduino.cc

ARDUINODIR := $(wildcard ~/opt/arduino-1.0)

# The board name to build for and upload to. For a complete list of available

# boards, see hardware/arduino/boards.txt in your arduino software directory.

# Here is a list of available boards at time of writing:

#   uno         Arduino Uno

#   atmega328   Arduino Duemilanove w/ ATmega328

#   diecimila   Arduino Diecimila or Duemilanove w/ ATmega168

#   nano328     Arduino Nano w/ ATmega328

#   nano        Arduino Nano w/ ATmega168

#   mega2560    Arduino Mega 2560 or Mega ADK

#   mega        Arduino Mega (ATmega1280)

#   mini328     Arduino Mini w/ ATmega328

#   mini        Arduino Mini w/ ATmega168

#   fio         Arduino Fio

#   bt328       Arduino BT w/ ATmega328

#   bt          Arduino BT w/ ATmega168

#   lilypad328  LilyPad Arduino w/ ATmega328

#   lilypad     LilyPad Arduino w/ ATmega168

#   pro5v328    Arduino Pro or Pro Mini (5V, 16 MHz) w/ ATmega328

#   pro5v       Arduino Pro or Pro Mini (5V, 16 MHz) w/ ATmega168

#   pro328      Arduino Pro or Pro Mini (3.3V, 8 MHz) w/ ATmega328

#   pro         Arduino Pro or Pro Mini (3.3V, 8 MHz) w/ ATmega168

#   atmega168   Arduino NG or older w/ ATmega168

#   atmega8     Arduino NG or older w/ ATmega8

ifndef BOARD

BOARD := nano

endif

# The name of the serial device that the arduino is at. For example,

# /dev/ttyACM0 (Uno), or /dev/ttyUSB0 (Duemilanove)

ifndef SERIALDEV

SERIALDEV := /dev/ttyACM0

endif

#_______________________________________________________________________________

#

# auto mode?

INOFILE := $(wildcard *.ino *.pde)

ifdef INOFILE

ifneq ($(words $(INOFILE)), 1)

$(error There is more than one .pde or .ino file in the directory!)

endif

TARGET := $(basename $(INOFILE))

SOURCES := $(INOFILE) \

	$(wildcard *.c *.cc *.cpp $(addprefix utility/, *.c *.cc *.cpp))

endif

# files

OBJECTS := $(addsuffix .o, $(basename $(SOURCES)))

ifdef INOFILE

OBJECT += main.o

endif

ARDUINOSRCDIR := $(ARDUINODIR)/hardware/arduino/cores/arduino

ARDUINOLIB := _arduino.a

ARDUINOLIBTMP := _arduino.a.tmp

ARDUINOSOURCES := $(wildcard $(addprefix $(ARDUINOSRCDIR)/, *.c *.cpp))

ARDUINOOBJECTS := $(addsuffix .o, $(addprefix $(ARDUINOLIBTMP)/, $(basename \

	$(subst $(ARDUINOSRCDIR)/,,$(ARDUINOSOURCES)))))

# obtain board parameters from the arduino boards.txt file

BOARDS_FILE := $(ARDUINODIR)/hardware/arduino/boards.txt

BOARD_BUILD_MCU := \

	$(shell sed -ne "s/$(BOARD).build.mcu=\(.*\)/\1/p" $(BOARDS_FILE))

BOARD_BUILD_FCPU := \

	$(shell sed -ne "s/$(BOARD).build.f_cpu=\(.*\)/\1/p" $(BOARDS_FILE))

BOARD_BUILD_VARIANT := \

	$(shell sed -ne "s/$(BOARD).build.variant=\(.*\)/\1/p" $(BOARDS_FILE))

BOARD_UPLOAD_SPEED := \

	$(shell sed -ne "s/$(BOARD).upload.speed=\(.*\)/\1/p" $(BOARDS_FILE))

BOARD_UPLOAD_PROTOCOL := \

	$(shell sed -ne "s/$(BOARD).upload.protocol=\(.*\)/\1/p" $(BOARDS_FILE))

# software

CC := avr-gcc

CXX := avr-g++

LD := avr-ld

AR := avr-ar

OBJCOPY := avr-objcopy

AVRDUDE := avrdude

#$(ARDUINODIR)/hardware/tools/avrdude

# flags

CPPFLAGS = -Os -Wall -fno-exceptions -ffunction-sections -fdata-sections

CPPFLAGS += -mmcu=$(BOARD_BUILD_MCU) -DF_CPU=$(BOARD_BUILD_FCPU)

CPPFLAGS += -I. -Iutility -I$(ARDUINOSRCDIR)

CPPFLAGS += -I$(ARDUINODIR)/hardware/arduino/variants/$(BOARD_BUILD_VARIANT)/

AVRDUDEFLAGS = -C $(ARDUINODIR)/hardware/tools/avrdude.conf -DV

AVRDUDEFLAGS += -p $(BOARD_BUILD_MCU) -P $(SERIALDEV)

AVRDUDEFLAGS += -c $(BOARD_UPLOAD_PROTOCOL) -b $(BOARD_UPLOAD_SPEED)

LINKFLAGS = -Os -Wl,--gc-sections -mmcu=$(BOARD_BUILD_MCU)

# checks

ifeq ($(TARGET),)

$(error No target defined!)

endif

# default rule

.DEFAULT_GOAL := all

#_______________________________________________________________________________

#                                                                          RULES

.PHONY:	all target upload clean

all: target upload

target: $(TARGET).hex

upload:

	stty -F $(SERIALDEV) hupcl

	$(AVRDUDE) $(AVRDUDEFLAGS) -U flash:w:$(TARGET).hex:i

clean:

	rm -f $(OBJECTS)

	rm -f $(TARGET).elf $(TARGET).hex $(ARDUINOLIB) *~

	rm -rf $(ARDUINOLIBTMP)

# building the target

$(TARGET).hex: $(TARGET).elf

	$(OBJCOPY) -O ihex -R .eeprom $< $@

.INTERMEDIATE: $(TARGET).elf

$(TARGET).elf: $(ARDUINOLIB) $(OBJECTS)

	$(CC) $(LINKFLAGS) $(OBJECTS) $(ARDUINOLIB) -o $@

%.o: %.ino

	$(COMPILE.cpp) -o $@ -x c++ -include $(ARDUINOSRCDIR)/Arduino.h $<

%.o: %.pde

	$(COMPILE.cpp) -o $@ -x c++ -include $(ARDUINOSRCDIR)/Arduino.h $<

# building the arduino library

$(ARDUINOLIB): $(ARDUINOOBJECTS)

	$(AR) rcs $@ $?

	rm -rf $(ARDUINOLIBTMP)

.INTERMEDIATE: $(ARDUINOOBJECTS)

$(ARDUINOLIBTMP)/%.o: $(ARDUINOSRCDIR)/%.c

	@test -d $(ARDUINOLIBTMP) || mkdir $(ARDUINOLIBTMP)

	$(COMPILE.c) -o $@ $<

$(ARDUINOLIBTMP)/%.o: $(ARDUINOSRCDIR)/%.cpp

	@test -d $(ARDUINOLIBTMP) || mkdir $(ARDUINOLIBTMP)

	$(COMPILE.cpp) -o $@ $<