Arduino Makefile

# Arduino 0021 Makefile
# Arduino adaptation by mellis, eighthave, oli.keller, pyrou
#
# This makefile allows you to build sketches from the command line
# without the Arduino environment (or Java).
#
# Detailed instructions for using the makefile:
#
#  1. Copy this file into the folder with your sketch. There should be a
#     file with the same name as the folder and with the extension .pde
#     (e.g. foo.pde in the foo/ folder).
#
#  2. Modify the line containg "INSTALL_DIR" to point to the directory that
#     contains the Arduino installation (for example, under Mac OS X, this
#     might be /Applications/Arduino.app).
#
#  3. Modify the line containing "PORT" to refer to the filename
#     representing the USB or serial connection to your Arduino board
#     (e.g. PORT = /dev/tty.USB0).  If the exact name of this file
#     changes, you can use * as a wildcard (e.g. PORT = /dev/tty.usb*).
#
#  4. Set the line containing "MCU" to match your board's processor.
#     Older one's are atmega8 based, newer ones like Arduino Mini, Bluetooth
#     or Diecimila have the atmega168.  If you're using a LilyPad Arduino,
#     change F_CPU to 8000000.
#
#  5. At the command line, change to the directory containing your
#     program's file and the makefile.
#
#  6. Type "make" and press enter to compile/verify your program.
#
#  7. Type "make upload", reset your Arduino board, and press enter to
#     upload your program to the Arduino board.
#
# $Id$


# Default Environment vars
# can be overridden

# ARDUINO_PORT ?= /dev/tty.usbserial-*
ARDUINO_PORT ?= /dev/tty.usb*
ARDUINO_UPLOAD_RATE ?= 115200
# ARDUINO_UPLOAD_RATE ?= 57600
ARDUINO_AVRDUDE_PROGRAMMER ?= stk500v1
# ARDUINO_AVRDUDE_PROGRAMMER ?= stk500v2
ARDUINO_MCU ?= atmega328p
#ARDUINO_MCU ?= atmega168
ARDUINO_F_CPU ?= 16000000


TARGET = $(notdir $(CURDIR))
INSTALL_DIR = /Applications/Arduino.app/Contents/Resources/Java
UPLOAD_RATE =       $(ARDUINO_UPLOAD_RATE)
PORT =          $(ARDUINO_PORT)
AVRDUDE_PROGRAMMER =    $(ARDUINO_AVRDUDE_PROGRAMMER)
MCU =           $(ARDUINO_MCU)
F_CPU =         $(ARDUINO_F_CPU)

############################################################################
# Below here nothing should be changed...

VERSION=21
ARDUINO = $(INSTALL_DIR)/hardware/arduino/cores/arduino
AVR_TOOLS_PATH = $(INSTALL_DIR)/hardware/tools/avr/bin
# AVR_TOOLS_PATH = /usr/bin
AVRDUDE_PATH = $(INSTALL_DIR)/hardware/tools/avr/bin
C_MODULES =  \
$(ARDUINO)/wiring_pulse.c \
$(ARDUINO)/wiring_analog.c \
$(ARDUINO)/pins_arduino.c \
$(ARDUINO)/wiring.c \
$(ARDUINO)/wiring_digital.c \
$(ARDUINO)/WInterrupts.c \
$(ARDUINO)/wiring_shift.c \
# end of C_MODULES

CXX_MODULES = \
$(ARDUINO)/Tone.cpp \
$(ARDUINO)/main.cpp \
$(ARDUINO)/WMath.cpp \
$(ARDUINO)/Print.cpp \
$(ARDUINO)/HardwareSerial.cpp

ARDUINO_LIB = \
$(wildcard $(INSTALL_DIR)/libraries/*/*.cpp) \
$(wildcard $(INSTALL_DIR)/libraries/*/*/*.cpp) \
$(wildcard $(INSTALL_DIR)/libraries/*/*/*/*.cpp)


CXX_APP = applet/$(TARGET).cpp
MODULES = $(C_MODULES) $(CXX_MODULES) $(ARDUINO_LIB)
SRC = $(C_MODULES)
CXXSRC = $(CXX_MODULES) $(CXX_APP) $(ARDUINO_LIB)
FORMAT = ihex


# Name of this Makefile (used for "make depend").
MAKEFILE = Makefile

# Debugging format.
# Native formats for AVR-GCC's -g are stabs [default], or dwarf-2.
# AVR (extended) COFF requires stabs, plus an avr-objcopy run.
#DEBUG = stabs
DEBUG =

OPT = s

# Place -D or -U options here
CDEFS = -DF_CPU=$(F_CPU)L -DARDUINO=$(VERSION)
CXXDEFS = -DF_CPU=$(F_CPU)L -DARDUINO=$(VERSION)

AVR_HEADERS = $(INSTALL_DIR)/hardware/tools/avr/avr/include/avr

ARDUINO_LIB_INCLUDES = $(addprefix -I, $(dir $(ARDUINO_LIB)))

# Place -I options here
CINCS = -I$(CURDIR) -I$(ARDUINO) $(ARDUINO_LIB_INCLUDES) -I$(AVR_HEADERS)
CXXINCS = -I$(CURDIR) -I$(ARDUINO) $(ARDUINO_LIB_INCLUDES) -I$(AVR_HEADERS)

# Compiler flag to set the C Standard level.
# c89   - "ANSI" C
# gnu89 - c89 plus GCC extensions
# c99   - ISO C99 standard (not yet fully implemented)
# gnu99 - c99 plus GCC extensions
#CSTANDARD = -std=gnu99
CDEBUG = -g$(DEBUG)
#CWARN = -Wall -Wstrict-prototypes
#CWARN = -Wall   # show all warnings
CWARN = -w      # suppress all warnings
####CTUNING = -funsigned-char -funsigned-bitfields -fpack-struct -fshort-enums
CTUNING = -ffunction-sections -fdata-sections
CXXTUNING = -fno-exceptions -ffunction-sections -fdata-sections
#CEXTRA = -Wa,-adhlns=$(<:.c=.lst)

CFLAGS = $(CDEBUG) -O$(OPT) $(CWARN) $(CTUNING) $(CDEFS) $(CINCS) $(CSTANDARD) $(CEXTRA)
CXXFLAGS = $(CDEBUG) -O$(OPT) $(CWARN) $(CXXTUNING) $(CDEFS) $(CINCS)
#ASFLAGS = -Wa,-adhlns=$(<:.S=.lst),-gstabs
LDFLAGS = -O$(OPT) -lm -Wl,--gc-sections


# Programming support using avrdude. Settings and variables.
AVRDUDE_PORT = $(PORT)
AVRDUDE_WRITE_FLASH = -U flash:w:applet/$(TARGET).hex

#AVRDUDE_FLAGS = -V -F -C $(INSTALL_DIR)/hardware/tools/avr/etc/avrdude.conf \

AVRDUDE_FLAGS = -V -F -C $(INSTALL_DIR)/hardware/tools/avr/etc/avrdude.conf \
-p $(MCU) -P $(AVRDUDE_PORT) -c $(AVRDUDE_PROGRAMMER) \
-b $(UPLOAD_RATE)

# Program settings
CC = $(AVR_TOOLS_PATH)/avr-gcc
CXX = $(AVR_TOOLS_PATH)/avr-g++
LD = $(AVR_TOOLS_PATH)/avr-gcc
OBJCOPY = $(AVR_TOOLS_PATH)/avr-objcopy
OBJDUMP = $(AVR_TOOLS_PATH)/avr-objdump
AR  = $(AVR_TOOLS_PATH)/avr-ar
SIZE = $(AVR_TOOLS_PATH)/avr-size
NM = $(AVR_TOOLS_PATH)/avr-nm
AVRDUDE = $(AVRDUDE_PATH)/avrdude
REMOVE = rm -f
MV = mv -f

# Define all object files.
OBJ = $(SRC:.c=.o) $(CXXSRC:.cpp=.o) $(ASRC:.S=.o)
OBJ_MODULES = $(C_MODULES:.c=.o) $(CXX_MODULES:.cpp=.o) $(ARDUINO_LIB:.cpp=.o)

# Define all listing files.
LST = $(ASRC:.S=.lst) $(CXXSRC:.cpp=.lst) $(SRC:.c=.lst)

# Combine all necessary flags and optional flags.
# Add target processor to flags.
ALL_CFLAGS = $(CFLAGS) -mmcu=$(MCU)
ALL_CXXFLAGS = $(CXXFLAGS) -mmcu=$(MCU)
ALL_ASFLAGS = -x assembler-with-cpp $(ASFLAGS) -mmcu=$(MCU)
ALL_LDFLAGS = $(LDFLAGS) -mmcu=$(MCU)

# Default target.
all: applet_files build sizeafter

build: elf hex

#applet_files: $(TARGET).pde
applet/$(TARGET).cpp: $(TARGET).pde
    # Here is the "preprocessing".
    # It creates a .cpp file based with the same name as the .pde file.
    # On top of the new .cpp file comes the WProgram.h header.
    # and prototypes for setup() and Loop()
    # Then the .cpp file will be compiled. Errors during compile will
    # refer to this new, automatically generated, file.
    # Not the original .pde file you actually edit...
    test -d applet || mkdir applet
    echo '#include "WProgram.h"' > applet/$(TARGET).cpp
    echo 'void setup();' >> applet/$(TARGET).cpp
    echo 'void loop();' >> applet/$(TARGET).cpp
    cat $(TARGET).pde >> applet/$(TARGET).cpp

elf: applet/$(TARGET).elf
hex: applet/$(TARGET).hex
eep: applet/$(TARGET).eep
lss: applet/$(TARGET).lss
sym: applet/$(TARGET).sym

# Program the device.
upload: applet/$(TARGET).hex
    $(AVRDUDE) $(AVRDUDE_FLAGS) $(AVRDUDE_WRITE_FLASH)


    # Display size of file.
HEXSIZE = $(SIZE) --target=$(FORMAT) applet/$(TARGET).hex
ELFSIZE = $(SIZE)  applet/$(TARGET).elf
sizebefore:
    @if [ -f applet/$(TARGET).elf ]; then echo; echo $(MSG_SIZE_BEFORE); $(HEXSIZE); echo; fi

sizeafter:
    @if [ -f applet/$(TARGET).elf ]; then echo; echo $(MSG_SIZE_AFTER); $(HEXSIZE); echo; fi


# Convert ELF to COFF for use in debugging / simulating in AVR Studio or VMLAB.
COFFCONVERT=$(OBJCOPY) --debugging \
--change-section-address .data-0x800000 \
--change-section-address .bss-0x800000 \
--change-section-address .noinit-0x800000 \
--change-section-address .eeprom-0x810000


coff: applet/$(TARGET).elf
    $(COFFCONVERT) -O coff-avr applet/$(TARGET).elf $(TARGET).cof


extcoff: $(TARGET).elf
    $(COFFCONVERT) -O coff-ext-avr applet/$(TARGET).elf $(TARGET).cof


.SUFFIXES: .elf .hex .eep .lss .sym

.elf.hex:
    $(OBJCOPY) -O $(FORMAT) -R .eeprom $< $@

.elf.eep:
    $(OBJCOPY) -O $(FORMAT) -j .eeprom --set-section-flags=.eeprom="alloc,load" \
    --no-change-warnings \
    --change-section-lma .eeprom=0 $< $@

# Create extended listing file from ELF output file.
.elf.lss:
    $(OBJDUMP) -h -S $< > $@

# Create a symbol table from ELF output file.
.elf.sym:
    $(NM) -n $< > $@

    # Link: create ELF output file from library.
#applet/$(TARGET).elf: $(TARGET).pde applet/core.a
applet/$(TARGET).elf: applet/$(TARGET).o applet/core.a
    $(LD) $(ALL_LDFLAGS) -o $@ applet/$(TARGET).o applet/core.a

applet/core.a: $(OBJ_MODULES)
    @for i in $(OBJ_MODULES); do echo $(AR) rcs applet/core.a $$i; $(AR) rcs applet/core.a $$i; done



# Compile: create object files from C++ source files.
.cpp.o:
    $(CXX) -c $(ALL_CXXFLAGS) $< -o $@

# Compile: create object files from C source files.
.c.o:
    $(CC) -c $(ALL_CFLAGS) $< -o $@


# Compile: create assembler files from C source files.
.c.s:
    $(CC) -S $(ALL_CFLAGS) $< -o $@


# Assemble: create object files from assembler source files.
.S.o:
    $(CC) -c $(ALL_ASFLAGS) $< -o $@


# Automatic dependencies
%.d: %.c
    $(CC) -M $(ALL_CFLAGS) $< | sed "s;$(notdir $*).o:;$*.o $*.d:;" > $@

%.d: %.cpp
    $(CXX) -M $(ALL_CXXFLAGS) $< | sed "s;$(notdir $*).o:;$*.o $*.d:;" > $@


# Target: clean project.
clean:
    $(REMOVE) applet/$(TARGET).hex applet/$(TARGET).eep applet/$(TARGET).cof applet/$(TARGET).elf \
    applet/$(TARGET).map applet/$(TARGET).sym applet/$(TARGET).lss applet/core.a \
    $(OBJ) $(LST) $(SRC:.c=.s) $(SRC:.c=.d) $(CXXSRC:.cpp=.s) $(CXXSRC:.cpp=.d)

.PHONY: all build elf hex eep lss sym program coff extcoff clean applet_files sizebefore sizeafter

#include $(SRC:.c=.d)
#include $(CXXSRC:.cpp=.d)