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Arduino Makefile
########################################################################
#
# Arduino command line tools Makefile
# System part (i.e. project independent)
#
# Copyright (C) 2010 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
#
########################################################################
#
# 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 = LiquidCrystal
#
# MCU = atmega168
# F_CPU = 16000000
# 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
# MCU,F_CPU - The target processor description
# ARDUINO_PORT - The port where the Arduino can be found (only needed
# when uploading
#
# 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 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
#
#
# 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
#
########################################################################
#
# 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
#
# 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
#
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
ifndef ARDUINO_LIB_PATH
ARDUINO_LIB_PATH = $(ARDUINO_DIR)/hardware/libraries
endif
ifndef ARDUINO_CORE_PATH
ARDUINO_CORE_PATH = $(ARDUINO_DIR)/hardware/arduino/cores/arduino
endif
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_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_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))
CORE_LIB = $(OBJDIR)/libcore.a
endif
endif
# all the objects!
OBJS = $(LOCAL_OBJS)
########################################################################
# Rules for making stuff
#
# The name of the main targets
TARGET_HEX = $(OBJDIR)/$(TARGET).hex
TARGET_ELF = $(OBJDIR)/$(TARGET).elf
TARGETS = $(OBJDIR)/$(TARGET).*
# 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))
SYS_OBJS = $(wildcard $(patsubst %,%/*.o,$(SYS_LIBS)))
CPPFLAGS = -DF_CPU=$(F_CPU) -DARDUINO=22 -I. -I$(ARDUINO_CORE_PATH) $(SYS_INCLUDES)
CFLAGS = -g -Os -w -ffunction-sections -fdata-sections -mmcu=$(MCU)
CXXFLAGS = -g -Os -w -fno-exceptions -ffunction-sections -fdata-sections -mmcu=$(MCU)
ASFLAGS = -mmcu=$(MCU) -I. -x assembler-with-cpp
LDFLAGS = -Os -Wl,--gc-sections -mmcu=$(MCU) -lm
# Rules for making a CPP file from the main sketch (.cpe)
PDEHEADER = \\\#include \"WProgram.h\"
# 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
# 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) $(PDEHEADER) > $@
$(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
ifndef AVRDUDE_ARD_PROGRAMMER
AVRDUDE_ARD_PROGRAMMER = stk500v1
endif
ifndef AVRDUDE_ARD_BAUDRATE
AVRDUDE_ARD_BAUDRATE = 19200
endif
AVRDUDE_ARD_OPTS = -c $(AVRDUDE_ARD_PROGRAMMER) -b $(AVRDUDE_ARD_BAUDRATE) -P $(ARD_PORT)
ifndef ISP_LOCK_FUSE_PRE
ISP_LOCK_FUSE_PRE = 0x3f
endif
ifndef ISP_LOCK_FUSE_POST
ISP_LOCK_FUSE_POST = 0xcf
endif
ifndef ISP_HIGH_FUSE
ISP_HIGH_FUSE = 0xdf
endif
ifndef ISP_LOW_FUSE
ISP_LOW_FUSE = 0xff
endif
ifndef ISP_EXT_FUSE
ISP_EXT_FUSE = 0x01
endif
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)
$(CORE_LIB): $(CORE_OBJS)
$(AR) rcs $(CORE_LIB) $(CORE_OBJS)
$(TARGET_ELF): $(OBJS) $(CORE_LIB)
$(CC) $(LDFLAGS) -o $@ $(OBJS) $(SYS_OBJS) $(CORE_LIB)
$(DEP_FILE): $(OBJDIR) $(DEPS)
cat $(DEPS) > $(DEP_FILE)
upload: 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 --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) $(OBJS) $(TARGETS) $(DEP_FILE) $(DEPS)
depends: $(DEPS)
cat $(DEPS) > $(DEP_FILE)
.PHONY: all clean depends upload raw_upload reset
include $(DEP_FILE)
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