/elec/propeller-clock

# Arduino 0022 Makefile 

# 

#

# written by olikraus@gmail.com

#

# Features:

#   - boards.txt is used to derive parameters

#   - All intermediate files are put into a separate directory (TMPDIRNAME)

#   - Simple use: Copy Makefile into the same directory of the .pde file

#

# Limitations:

#   - requires UNIX environment

#   - TMPDIRNAME must be subdirectory of the current directory.

#

# Targets

# 	all		build everything

#	upload	build and upload to arduino

#	clean	remove all temporary files (includes final hex file)

#

# History

#	001	28 Apr 2010	first  release

#	002	05 Oct 2010	added 'uno'

#

#=== user configuration ===

# All ...PATH variables must have a '/' at the end

# Board (and prozessor) information: see $(ARDUINO_PATH)hardware/arduino/boards.txt

# Some examples:

#	BOARD		DESCRIPTION

#	uno			Arduino Uno

#	atmega328	Arduino Duemilanove or Nano w/ ATmega328

#	diecimila		Arduino Diecimila, Duemilanove, or Nano w/ ATmega168

#	mega		Arduino Mega

#	mini			Arduino Mini

#	lilypad328	LilyPad Arduino w/ ATmega328  

BOARD:=uno

# additional (comma separated) defines 

# -DDOGM128_HW		board is connected to DOGM128 display

# -DDOGM132_HW		board is connected to DOGM132 display

# -DDOGS102_HW		board is connected to DOGS102 display

# -DDOG_REVERSE		180 degree rotation

DEFS=

# The location where the avr tools (e.g. avr-gcc) are located. Requires a '/' at the end.

# Can be empty if all tools are accessable through the search path

AVR_TOOLS_PATH:=/usr/bin/

# Install path of the arduino software. Requires a '/' at the end.

ARDUINO_PATH:=/home/edam/opt/arduino-0022/

# Install path for avrdude. Requires a '/' at the end. Can be empty if

# avrdude is in the search path.

AVRDUDE_PATH:=$(ARDUINO_PATH)hardware/tools/

# The unix device where we can reach the arduino board

# Uno: /dev/ttyACM0

# Duemilanove: /dev/ttyUSB0

AVRDUDE_PORT:=/dev/ttyACM0

# List of all libaries which should be included.

#EXTRA_DIRS+=$(ARDUINO_PATH)libraries/SPI/

#EXTRA_DIRS+=$(ARDUINO_PATH)libraries/Ethernet/

#EXTRA_DIRS+=$(ARDUINO_PATH)libraries/Ethernet/utility/

#=== fetch parameter from boards.txt processor parameter ===

# the basic idea is to get most of the information from boards.txt

BOARDS_TXT:=$(ARDUINO_PATH)hardware/arduino/boards.txt

# get the MCU value from the $(BOARD).build.mcu variable. For the

# atmega328 board this is atmega328p

MCU:=$(shell sed -n -e "s/$(BOARD).build.mcu=\(.*\)/\1/p" $(BOARDS_TXT))

# get the F_CPU value from the $(BOARD).build.f_cpu variable. For the

# atmega328 board this is 16000000

F_CPU:=$(shell sed -n -e "s/$(BOARD).build.f_cpu=\(.*\)/\1/p" $(BOARDS_TXT))

# avrdude

# get the AVRDUDE_UPLOAD_RATE value from the $(BOARD).upload.speed

# variable. For the atmega328 board this is 57600

AVRDUDE_UPLOAD_RATE:=$(shell sed -n -e "s/$(BOARD).upload.speed=\(.*\)/\1/p" $(BOARDS_TXT))

# get the AVRDUDE_PROGRAMMER value from the $(BOARD).upload.protocol

# variable. For the atmega328 board this is stk500

#AVRDUDE_PROGRAMMER:=$(shell sed -n -e "s/$(BOARD).upload.protocol=\(.*\)/\1/p" $(BOARDS_TXT))

# use stk500v1, because stk500 will default to stk500v2

AVRDUDE_PROGRAMMER:=stk500v1

#=== identify user files ===

PDESRC:=$(shell ls *.pde)

TARGETNAME=$(basename $(PDESRC))

CDIRS:=$(EXTRA_DIRS) $(addsuffix utility/,$(EXTRA_DIRS))

CDIRS:=*.c utility/*.c $(addsuffix *.c,$(CDIRS)) $(ARDUINO_PATH)hardware/arduino/cores/arduino/*.c

CSRC:=$(shell ls $(CDIRS) 2>/dev/null)

CCSRC:=$(shell ls *.cc 2>/dev/null)

CPPDIRS:=$(EXTRA_DIRS) $(addsuffix utility/,$(EXTRA_DIRS))

CPPDIRS:=*.cpp utility/*.cpp $(addsuffix *.cpp,$(CPPDIRS)) $(ARDUINO_PATH)hardware/arduino/cores/arduino/*.cpp 

CPPSRC:=$(shell ls $(CPPDIRS) 2>/dev/null)

#=== build internal variables ===

# the name of the subdirectory where everything is stored

TMPDIRNAME:=tmp

TMPDIRPATH:=$(TMPDIRNAME)/

AVRTOOLSPATH:=$(AVR_TOOLS_PATH)

OBJCOPY:=$(AVRTOOLSPATH)avr-objcopy

OBJDUMP:=$(AVRTOOLSPATH)avr-objdump

SIZE:=$(AVRTOOLSPATH)avr-size

CPPSRC:=$(addprefix $(TMPDIRPATH),$(PDESRC:.pde=.cpp)) $(CPPSRC)

COBJ:=$(CSRC:.c=.o)

CCOBJ:=$(CCSRC:.cc=.o)

CPPOBJ:=$(CPPSRC:.cpp=.o)

OBJFILES:=$(COBJ) $(CCOBJ) $(CPPOBJ)

DIRS:= $(dir $(OBJFILES))

DEPFILES:=$(OBJFILES:.o=.d)

# assembler files from avr-gcc -S

ASSFILES:=$(OBJFILES:.o=.s)

# disassembled object files with avr-objdump -S

DISFILES:=$(OBJFILES:.o=.dis)

LIBNAME:=$(TMPDIRPATH)$(TARGETNAME).a

ELFNAME:=$(TMPDIRPATH)$(TARGETNAME).elf

HEXNAME:=$(TMPDIRPATH)$(TARGETNAME).hex

AVRDUDE_FLAGS = -V -F

AVRDUDE_FLAGS += -C $(ARDUINO_PATH)/hardware/tools/avrdude.conf 

AVRDUDE_FLAGS += -p $(MCU)

AVRDUDE_FLAGS += -P $(AVRDUDE_PORT)

AVRDUDE_FLAGS += -c $(AVRDUDE_PROGRAMMER) 

AVRDUDE_FLAGS += -b $(AVRDUDE_UPLOAD_RATE)

AVRDUDE_FLAGS += -U flash:w:$(HEXNAME)

AVRDUDE = $(AVRDUDE_PATH)avrdude

#=== predefined variable override ===

# use "make -p -f/dev/null" to see the default rules and definitions

# Build C and C++ flags. Include path information must be placed here

COMMON_FLAGS = -DF_CPU=$(F_CPU) -mmcu=$(MCU) $(DEFS)

# COMMON_FLAGS += -gdwarf-2

COMMON_FLAGS += -Os

COMMON_FLAGS += -Wall -funsigned-char -funsigned-bitfields -fpack-struct -fshort-enums

COMMON_FLAGS += -I. 

COMMON_FLAGS += -I$(ARDUINO_PATH)hardware/arduino/cores/arduino

COMMON_FLAGS += $(addprefix -I,$(EXTRA_DIRS))

COMMON_FLAGS += -fno-exceptions -ffunction-sections -fdata-sections -Wl,--gc-sections

COMMON_FLAGS += -Wl,--relax

COMMON_FLAGS += -mcall-prologues

CFLAGS = $(COMMON_FLAGS) -std=gnu99 -Wstrict-prototypes  

CXXFLAGS = $(COMMON_FLAGS) 

# Replace standard build tools by avr tools

CC = $(AVRTOOLSPATH)avr-gcc

CXX = $(AVRTOOLSPATH)avr-g++

AR  = @$(AVRTOOLSPATH)avr-ar

# "rm" must be able to delete a directory tree

RM = rm -rf 

#=== rules ===

# add rules for the C/C++ files where the .o file is placed in the

# TMPDIRPATH reuse existing variables as far as possible

$(TMPDIRPATH)%.o: %.c

	@echo compile $<

	@$(COMPILE.c) $(OUTPUT_OPTION) $<

$(TMPDIRPATH)%.o: %.cc

	@echo compile $< 

	@$(COMPILE.cc) $(OUTPUT_OPTION) $<

$(TMPDIRPATH)%.o: %.cpp

	@echo compile $<

	@$(COMPILE.cpp) $(OUTPUT_OPTION) $<

$(TMPDIRPATH)%.s: %.c

	@$(COMPILE.c) $(OUTPUT_OPTION) -S $<

$(TMPDIRPATH)%.s: %.cc

	@$(COMPILE.cc) $(OUTPUT_OPTION) -S $<

$(TMPDIRPATH)%.s: %.cpp

	@$(COMPILE.cpp) $(OUTPUT_OPTION) -S $<

$(TMPDIRPATH)%.dis: $(TMPDIRPATH)%.o

	@$(OBJDUMP) -S $< > $@

.SUFFIXES: .elf .hex .pde

.elf.hex:

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

$(TMPDIRPATH)%.cpp: %.pde

	@cat $(ARDUINO_PATH)hardware/arduino/cores/arduino/main.cpp > $@

	@cat $< >> $@

	@echo >> $@

	@echo 'extern "C" void __cxa_pure_virtual() { while (1); }' >> $@

.PHONY: all

all: tmpdir $(HEXNAME) assemblersource showsize

	ls -al $(HEXNAME) $(ELFNAME)

$(ELFNAME): $(LIBNAME)($(addprefix $(TMPDIRPATH),$(OBJFILES))) 

	$(LINK.o) $(COMMON_FLAGS) $(LIBNAME) $(LOADLIBES) $(LDLIBS) -o $@

$(LIBNAME)(): $(addprefix $(TMPDIRPATH),$(OBJFILES))

#=== create temp directory ===

# not really required, because it will be also created during the

# dependency handling

.PHONY: tmpdir

tmpdir:

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

#=== create assembler files for each C/C++ file ===

.PHONY: assemblersource

assemblersource: $(addprefix $(TMPDIRPATH),$(ASSFILES)) $(addprefix $(TMPDIRPATH),$(DISFILES))

#=== show the section sizes of the ELF file ===

.PHONY: showsize

showsize: $(ELFNAME)

	$(SIZE) $<

#=== clean up target ===

# this is simple: the TMPDIRPATH is removed

.PHONY: clean

clean:

	$(RM) $(TMPDIRPATH)

# Program the device.  

# step 1: reset the arduino board with the stty command

# step 2: user avrdude to upload the software

.PHONY: upload

upload: $(HEXNAME)

	stty -F $(AVRDUDE_PORT) hupcl

	$(AVRDUDE) $(AVRDUDE_FLAGS)

# === dependency handling ===

# From the gnu make manual (section 4.14, Generating Prerequisites

# Automatically) Additionally (because this will be the first executed

# rule) TMPDIRPATH is created here.  Instead of "sed" the "echo"

# command is used

# cd $(TMPDIRPATH); mkdir -p $(DIRS) 2> /dev/null; cd ..

DEPACTION=test -d $(TMPDIRPATH) || mkdir $(TMPDIRPATH);\

mkdir -p $(addprefix $(TMPDIRPATH),$(DIRS));\

set -e; echo -n $@ $(dir $@) > $@; $(CC) -MM $(COMMON_FLAGS) $< >> $@

$(TMPDIRPATH)%.d: %.c

	@$(DEPACTION)

$(TMPDIRPATH)%.d: %.cc

	@$(DEPACTION)

$(TMPDIRPATH)%.d: %.cpp

	@$(DEPACTION)

# Include dependency files. If a .d file is missing, a warning is

# created and the .d file is created This warning is not a problem

# (gnu make manual, section 3.3 Including Other Makefiles)

-include $(addprefix $(TMPDIRPATH),$(DEPFILES))