########################################################################
#
# Arduino command line tools Makefile
# System part (i.e. project independent)
#
# Copyright (C) 2010,2011,2012 Martin Oldfield <m@mjo.tc>, based on
# work that is copyright Nicholas Zambetti, David A. Mellis & Hernando
# Barragan.
#
# This file is free software; you can redistribute it and/or modify it
# under the terms of the GNU Lesser General Public License as
# published by the Free Software Foundation; either version 2.1 of the
# License, or (at your option) any later version.
#
# Adapted from Arduino 0011 Makefile by M J Oldfield
#
# Original Arduino adaptation by mellis, eighthave, oli.keller
#
# Version 0.1 17.ii.2009 M J Oldfield
#
# 0.2 22.ii.2009 M J Oldfield
# - fixes so that the Makefile actually works!
# - support for uploading via ISP
# - orthogonal choices of using the Arduino for
# tools, libraries and uploading
#
# 0.3 21.v.2010 M J Oldfield
# - added proper license statement
# - added code from Philip Hands to reset
# Arduino prior to upload
#
# 0.4 25.v.2010 M J Oldfield
# - tweaked reset target on Philip Hands' advice
#
# 0.5 23.iii.2011 Stefan Tomanek
# - added ad-hoc library building
# 17.v.2011 M J Oldfield
# - grabbed said version from Ubuntu
#
# 0.6 22.vi.2011 M J Oldfield
# - added ard-parse-boards supports
# - added -lc to linker opts,
# on Fabien Le Lez's advice
#
# 0.7 12.vii.2011 M J Oldfield
# - moved -lm to the end of linker opts,
# to solve Frank Knopf's problem;
# - added -F to stty opts: Craig Hollabaugh
# reckons it's good for Ubuntu
#
# 0.8 12.ii.2012 M J Oldfield
# - Patches for Arduino 1.0 IDE:
# support .ino files;
# handle board 'variants';
# tweaked compile flags.
# - Build a library from all the system
# supplied code rather than linking the .o
# files directly.
# - Let TARGET default to current directory
# as per Daniele Vergini's patch.
# - Add support for .c files in system
# libraries: Dirk-Willem van Gulik and Evan
# Goldenberg both reported this and
# provided patches in the same spirit.
#
########################################################################
#
# STANDARD ARDUINO WORKFLOW
#
# Given a normal sketch directory, all you need to do is to create
# a small Makefile which defines a few things, and then includes this one.
#
# For example:
#
# ARDUINO_DIR = /Applications/arduino-0013
#
# TARGET = CLItest
# ARDUINO_LIBS = Ethernet Ethernet/utility SPI
#
# BOARD_TAG = uno
# ARDUINO_PORT = /dev/cu.usb*
#
# include /usr/local/share/Arduino.mk
#
# Hopefully these will be self-explanatory but in case they're not:
#
# ARDUINO_DIR - Where the Arduino software has been unpacked
#
# TARGET - The basename used for the final files. Canonically
# this would match the .pde file, but it's not needed
# here: you could always set it to xx if you wanted!
#
# ARDUINO_LIBS - A list of any libraries used by the sketch (we
# assume these are in
# $(ARDUINO_DIR)/hardware/libraries
#
# ARDUINO_PORT - The port where the Arduino can be found (only needed
# when uploading
#
# BOARD_TAG - The ard-parse-boards tag for the board e.g. uno or mega
# 'make show_boards' shows a list
#
# You might also want to specify these, but normally they'll be read from the
# boards.txt file i.e. implied by BOARD_TAG
#
# MCU,F_CPU - The target processor description
#
# Once this file has been created the typical workflow is just
#
# $ make upload
#
# All of the object files are created in the build-cli subdirectory
# All sources should be in the current directory and can include:
# - at most one .pde or .ino file which will be treated as C++ after
# the standard Arduino header and footer have been affixed.
# - any number of .c, .cpp, .s and .h files
#
# Included libraries are built in the build-cli/libs subdirectory.
#
# Besides make upload you can also
# make - no upload
# make clean - remove all our dependencies
# make depends - update dependencies
# make reset - reset the Arduino by tickling DTR on the serial port
# make raw_upload - upload without first resetting
# make show_boards - list all the boards defined in boards.txt
#
########################################################################
#
# ARDUINO WITH OTHER TOOLS
#
# If the tools aren't in the Arduino distribution, then you need to
# specify their location:
#
# AVR_TOOLS_PATH = /usr/bin
# AVRDUDE_CONF = /etc/avrdude/avrdude.conf
#
########################################################################
#
# ARDUINO WITH ISP
#
# You need to specify some details of your ISP programmer and might
# also need to specify the fuse values:
#
# ISP_PROG = -c stk500v2
# ISP_PORT = /dev/ttyACM0
#
# You might also need to set the fuse bits, but typically they'll be
# read from boards.txt, based on the BOARD_TAG variable:
#
# ISP_LOCK_FUSE_PRE = 0x3f
# ISP_LOCK_FUSE_POST = 0xcf
# ISP_HIGH_FUSE = 0xdf
# ISP_LOW_FUSE = 0xff
# ISP_EXT_FUSE = 0x01
#
# I think the fuses here are fine for uploading to the ATmega168
# without bootloader.
#
# To actually do this upload use the ispload target:
#
# make ispload
#
#
########################################################################
# Some paths
#
SELF_PATH := $(dir $(lastword $(MAKEFILE_LIST)))
ifneq (ARDUINO_DIR,)
ifndef AVR_TOOLS_PATH
AVR_TOOLS_PATH = $(ARDUINO_DIR)/hardware/tools/avr/bin
endif
ifndef ARDUINO_ETC_PATH
ARDUINO_ETC_PATH = $(ARDUINO_DIR)/hardware/tools/avr/etc
endif
ifndef AVRDUDE_CONF
AVRDUDE_CONF = $(ARDUINO_ETC_PATH)/avrdude.conf
endif
ARDUINO_LIB_PATH = $(ARDUINO_DIR)/libraries
ifndef ARDUINO_CORE_PATH
ARDUINO_CORE_PATH = $(ARDUINO_DIR)/hardware/arduino/cores/arduino
ARDUINO_VAR_PATH = $(ARDUINO_DIR)/hardware/arduino/variants
endif
endif
########################################################################
# boards.txt parsing
#
ifndef BOARD_TAG
BOARD_TAG = uno
endif
ifndef BOARDS_TXT
BOARDS_TXT = $(ARDUINO_DIR)/hardware/arduino/boards.txt
endif
ifndef PARSE_BOARD
PARSE_BOARD = $(SELF_PATH)/ard-parse-boards --boards_txt=$(BOARDS_TXT)
endif
# Which variant ? This affects the include path
ifndef VARIANT
VARIANT = $(shell $(PARSE_BOARD) $(BOARD_TAG) build.variant)
endif
# processor stuff
ifndef MCU
MCU = $(shell $(PARSE_BOARD) $(BOARD_TAG) build.mcu)
endif
ifndef F_CPU
F_CPU = $(shell $(PARSE_BOARD) $(BOARD_TAG) build.f_cpu)
endif
# normal programming info
ifndef AVRDUDE_ARD_PROGRAMMER
AVRDUDE_ARD_PROGRAMMER = $(shell $(PARSE_BOARD) $(BOARD_TAG) upload.protocol)
endif
ifndef AVRDUDE_ARD_BAUDRATE
AVRDUDE_ARD_BAUDRATE = $(shell $(PARSE_BOARD) $(BOARD_TAG) upload.speed)
endif
# fuses if you're using e.g. ISP
ifndef ISP_LOCK_FUSE_PRE
ISP_LOCK_FUSE_PRE = $(shell $(PARSE_BOARD) $(BOARD_TAG) bootloader.unlock_bits)
endif
ifndef ISP_LOCK_FUSE_POST
ISP_LOCK_FUSE_POST = $(shell $(PARSE_BOARD) $(BOARD_TAG) bootloader.lock_bits)
endif
ifndef ISP_HIGH_FUSE
ISP_HIGH_FUSE = $(shell $(PARSE_BOARD) $(BOARD_TAG) bootloader.high_fuses)
endif
ifndef ISP_LOW_FUSE
ISP_LOW_FUSE = $(shell $(PARSE_BOARD) $(BOARD_TAG) bootloader.low_fuses)
endif
ifndef ISP_EXT_FUSE
ISP_EXT_FUSE = $(shell $(PARSE_BOARD) $(BOARD_TAG) bootloader.extended_fuses)
endif
# Everything gets built in here
OBJDIR = build-cli
########################################################################
# Local sources
#
LOCAL_C_SRCS = $(wildcard *.c)
LOCAL_CPP_SRCS = $(wildcard *.cpp)
LOCAL_CC_SRCS = $(wildcard *.cc)
LOCAL_PDE_SRCS = $(wildcard *.pde)
LOCAL_INO_SRCS = $(wildcard *.ino)
LOCAL_AS_SRCS = $(wildcard *.S)
LOCAL_OBJ_FILES = $(LOCAL_C_SRCS:.c=.o) $(LOCAL_CPP_SRCS:.cpp=.o) \
$(LOCAL_CC_SRCS:.cc=.o) $(LOCAL_PDE_SRCS:.pde=.o) \
$(LOCAL_INO_SRCS:.ino=.o) $(LOCAL_AS_SRCS:.S=.o)
LOCAL_OBJS = $(patsubst %,$(OBJDIR)/%,$(LOCAL_OBJ_FILES))
# Dependency files
DEPS = $(LOCAL_OBJS:.o=.d)
# core sources
ifeq ($(strip $(NO_CORE)),)
ifdef ARDUINO_CORE_PATH
CORE_C_SRCS = $(wildcard $(ARDUINO_CORE_PATH)/*.c)
CORE_CPP_SRCS = $(wildcard $(ARDUINO_CORE_PATH)/*.cpp)
CORE_OBJ_FILES = $(CORE_C_SRCS:.c=.o) $(CORE_CPP_SRCS:.cpp=.o)
CORE_OBJS = $(patsubst $(ARDUINO_CORE_PATH)/%, \
$(OBJDIR)/%,$(CORE_OBJ_FILES))
endif
endif
########################################################################
# Rules for making stuff
#
# The name of the main targets
TARGET_HEX = $(OBJDIR)/$(TARGET).hex
TARGET_ELF = $(OBJDIR)/$(TARGET).elf
TARGETS = $(OBJDIR)/$(TARGET).*
CORE_LIB = $(OBJDIR)/libcore.a
# A list of dependencies
DEP_FILE = $(OBJDIR)/depends.mk
# Names of executables
CC = $(AVR_TOOLS_PATH)/avr-gcc
CXX = $(AVR_TOOLS_PATH)/avr-g++
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
REMOVE = rm -f
MV = mv -f
CAT = cat
ECHO = echo
# General arguments
SYS_LIBS = $(patsubst %,$(ARDUINO_LIB_PATH)/%,$(ARDUINO_LIBS))
SYS_INCLUDES = $(patsubst %,-I%,$(SYS_LIBS))
LIB_C_SRCS = $(wildcard $(patsubst %,%/*.c,$(SYS_LIBS)))
LIB_CPP_SRCS = $(wildcard $(patsubst %,%/*.cpp,$(SYS_LIBS)))
LIB_OBJS = $(patsubst $(ARDUINO_LIB_PATH)/%.c,$(OBJDIR)/libs/%.o,$(LIB_C_SRCS)) \
$(patsubst $(ARDUINO_LIB_PATH)/%.cpp,$(OBJDIR)/libs/%.o,$(LIB_CPP_SRCS))
CPPFLAGS = -mmcu=$(MCU) -DF_CPU=$(F_CPU) -DARDUINO=$(ARDUINO_VERSION) \
-I. -I$(ARDUINO_CORE_PATH) -I$(ARDUINO_VAR_PATH)/$(VARIANT) \
$(SYS_INCLUDES) -g -Os -w -Wall \
-ffunction-sections -fdata-sections
CFLAGS = -std=gnu99
CXXFLAGS = -fno-exceptions
ASFLAGS = -mmcu=$(MCU) -I. -x assembler-with-cpp
LDFLAGS = -mmcu=$(MCU) -Wl,--gc-sections -Os
# Expand and pick the first port
ARD_PORT = $(firstword $(wildcard $(ARDUINO_PORT)))
# Implicit rules for building everything (needed to get everything in
# the right directory)
#
# Rather than mess around with VPATH there are quasi-duplicate rules
# here for building e.g. a system C++ file and a local C++
# file. Besides making things simpler now, this would also make it
# easy to change the build options in future
# library sources
$(OBJDIR)/libs/%.o: $(ARDUINO_LIB_PATH)/%.c
mkdir -p $(dir $@)
$(CC) -c $(CPPFLAGS) $(CFLAGS) $< -o $@
$(OBJDIR)/libs/%.o: $(ARDUINO_LIB_PATH)/%.cpp
mkdir -p $(dir $@)
$(CC) -c $(CPPFLAGS) $(CXXFLAGS) $< -o $@
# normal local sources
# .o rules are for objects, .d for dependency tracking
# there seems to be an awful lot of duplication here!!!
$(OBJDIR)/%.o: %.c
$(CC) -c $(CPPFLAGS) $(CFLAGS) $< -o $@
$(OBJDIR)/%.o: %.cc
$(CXX) -c $(CPPFLAGS) $(CXXFLAGS) $< -o $@
$(OBJDIR)/%.o: %.cpp
$(CXX) -c $(CPPFLAGS) $(CXXFLAGS) $< -o $@
$(OBJDIR)/%.o: %.S
$(CC) -c $(CPPFLAGS) $(ASFLAGS) $< -o $@
$(OBJDIR)/%.o: %.s
$(CC) -c $(CPPFLAGS) $(ASFLAGS) $< -o $@
$(OBJDIR)/%.d: %.c
$(CC) -MM $(CPPFLAGS) $(CFLAGS) $< -MF $@ -MT $(@:.d=.o)
$(OBJDIR)/%.d: %.cc
$(CXX) -MM $(CPPFLAGS) $(CXXFLAGS) $< -MF $@ -MT $(@:.d=.o)
$(OBJDIR)/%.d: %.cpp
$(CXX) -MM $(CPPFLAGS) $(CXXFLAGS) $< -MF $@ -MT $(@:.d=.o)
$(OBJDIR)/%.d: %.S
$(CC) -MM $(CPPFLAGS) $(ASFLAGS) $< -MF $@ -MT $(@:.d=.o)
$(OBJDIR)/%.d: %.s
$(CC) -MM $(CPPFLAGS) $(ASFLAGS) $< -MF $@ -MT $(@:.d=.o)
# the pde -> cpp -> o file
$(OBJDIR)/%.cpp: %.pde
$(ECHO) '#include "WProgram.h"' > $@
$(CAT) $< >> $@
# the ino -> cpp -> o file
$(OBJDIR)/%.cpp: %.ino
$(ECHO) '#include <Arduino.h>' > $@
$(CAT) $< >> $@
$(OBJDIR)/%.o: $(OBJDIR)/%.cpp
$(CXX) -c $(CPPFLAGS) $(CXXFLAGS) $< -o $@
$(OBJDIR)/%.d: $(OBJDIR)/%.cpp
$(CXX) -MM $(CPPFLAGS) $(CXXFLAGS) $< -MF $@ -MT $(@:.d=.o)
# core files
$(OBJDIR)/%.o: $(ARDUINO_CORE_PATH)/%.c
$(CC) -c $(CPPFLAGS) $(CFLAGS) $< -o $@
$(OBJDIR)/%.o: $(ARDUINO_CORE_PATH)/%.cpp
$(CXX) -c $(CPPFLAGS) $(CXXFLAGS) $< -o $@
# various object conversions
$(OBJDIR)/%.hex: $(OBJDIR)/%.elf
$(OBJCOPY) -O ihex -R .eeprom $< $@
$(OBJDIR)/%.eep: $(OBJDIR)/%.elf
-$(OBJCOPY) -j .eeprom --set-section-flags=.eeprom="alloc,load" \
--change-section-lma .eeprom=0 -O ihex $< $@
$(OBJDIR)/%.lss: $(OBJDIR)/%.elf
$(OBJDUMP) -h -S $< > $@
$(OBJDIR)/%.sym: $(OBJDIR)/%.elf
$(NM) -n $< > $@
########################################################################
#
# Avrdude
#
ifndef AVRDUDE
AVRDUDE = $(AVR_TOOLS_PATH)/avrdude
endif
AVRDUDE_COM_OPTS = -q -V -p $(MCU)
ifdef AVRDUDE_CONF
AVRDUDE_COM_OPTS += -C $(AVRDUDE_CONF)
endif
AVRDUDE_ARD_OPTS = -c $(AVRDUDE_ARD_PROGRAMMER) -b $(AVRDUDE_ARD_BAUDRATE) -P $(ARD_PORT)
ifndef ISP_PROG
ISP_PROG = -c stk500v2
endif
AVRDUDE_ISP_OPTS = -P $(ISP_PORT) $(ISP_PROG)
########################################################################
#
# Explicit targets start here
#
all: $(OBJDIR) $(TARGET_HEX)
$(OBJDIR):
mkdir $(OBJDIR)
$(TARGET_ELF): $(LOCAL_OBJS) $(CORE_LIB) $(OTHER_OBJS)
$(CC) $(LDFLAGS) -o $@ $(LOCAL_OBJS) $(CORE_LIB) $(OTHER_OBJS) -lc -lm
$(CORE_LIB): $(CORE_OBJS) $(LIB_OBJS)
$(AR) rcs $@ $(CORE_OBJS) $(LIB_OBJS)
$(DEP_FILE): $(OBJDIR) $(DEPS)
cat $(DEPS) > $(DEP_FILE)
upload: $(TARGET_HEX) reset raw_upload
raw_upload: $(TARGET_HEX)
$(AVRDUDE) $(AVRDUDE_COM_OPTS) $(AVRDUDE_ARD_OPTS) \
-U flash:w:$(TARGET_HEX):i
# stty on MacOS likes -F, but on Debian it likes -f redirecting
# stdin/out appears to work but generates a spurious error on MacOS at
# least. Perhaps it would be better to just do it in perl ?
reset:
for STTYF in 'stty -F' 'stty --file' 'stty -f' 'stty <' ; \
do $$STTYF /dev/tty >/dev/null 2>/dev/null && break ; \
done ;\
$$STTYF $(ARD_PORT) hupcl ;\
(sleep 0.1 || sleep 1) ;\
$$STTYF $(ARD_PORT) -hupcl
ispload: $(TARGET_HEX)
$(AVRDUDE) $(AVRDUDE_COM_OPTS) $(AVRDUDE_ISP_OPTS) -e \
-U lock:w:$(ISP_LOCK_FUSE_PRE):m \
-U hfuse:w:$(ISP_HIGH_FUSE):m \
-U lfuse:w:$(ISP_LOW_FUSE):m \
-U efuse:w:$(ISP_EXT_FUSE):m
$(AVRDUDE) $(AVRDUDE_COM_OPTS) $(AVRDUDE_ISP_OPTS) -D \
-U flash:w:$(TARGET_HEX):i
$(AVRDUDE) $(AVRDUDE_COM_OPTS) $(AVRDUDE_ISP_OPTS) \
-U lock:w:$(ISP_LOCK_FUSE_POST):m
clean:
$(REMOVE) $(LOCAL_OBJS) $(CORE_OBJS) $(LIB_OBJS) $(CORE_LIB) $(TARGETS) $(DEP_FILE) $(DEPS)
depends: $(DEPS)
cat $(DEPS) > $(DEP_FILE)
size: $(OBJDIR) $(TARGET_HEX)
$(SIZE) $(TARGET_HEX)
show_boards:
$(PARSE_BOARD) --boards
.PHONY: all clean depends upload raw_upload reset size show_boards
include $(DEP_FILE)
