110 lines
3.6 KiB
Makefile
110 lines
3.6 KiB
Makefile
# Makefile to build an Arduino project
|
|
# Thanks to <http://theonlineshed.com/arduino-without-the-ide-an-intro-to-unix-make>
|
|
# Determine path of arduino core libraries
|
|
ARDUINO_HW := /usr/share/arduino/hardware
|
|
# On Arch Linux, the path is /usr/share/arduino/hardware/archlinux-arduino, so
|
|
# we use a wildcard to handle this case
|
|
# TODO: allow overriding ARDUINO_LIB from env variables
|
|
ARDUINO_LIB := $(firstword $(wildcard ${ARDUINO_HW}/*arduino))
|
|
|
|
# Arduino core libraries
|
|
VPATH := \
|
|
${ARDUINO_LIB}/avr/cores/arduino \
|
|
${ARDUINO_LIB}/avr/libraries/Wire/src \
|
|
|
|
VARIANTS := ${ARDUINO_LIB}/avr/variants/standard
|
|
# Only used for VSCode Intellisense configuration
|
|
AVR_INC := /usr/avr/include
|
|
|
|
# Include all subdirectories from libraries we need
|
|
VPATH := $(foreach path, ${VPATH}, ${path} $(shell find ${path} -type d))
|
|
|
|
# Add the local directory into VPATH. Potential local subdirectories also go here
|
|
# This is to prevent the command above from including directories like .git into
|
|
# the VPATH list
|
|
VPATH += ${PWD} \
|
|
${PWD}/ArduinoMIDI/src \
|
|
|
|
# Build parameters
|
|
BUILD_DIR := out
|
|
CC := avr-gcc
|
|
CXX := avr-g++
|
|
OBJCOPY := avr-objcopy
|
|
AVRDUDE := avrdude
|
|
MMCU := -mmcu=atmega328p
|
|
INCS := \
|
|
$(foreach path, ${VPATH}, -I ${path}) \
|
|
$(foreach path, ${VARIANTS}, -I ${path}) \
|
|
|
|
CFLAGS := -Os -DF_CPU=16000000UL ${MMCU} ${INCS}
|
|
# Generate sections for each function and variable
|
|
# so that LD can eliminate unused functions and variables
|
|
CFLAGS += -ffunction-sections -fdata-sections
|
|
# GCC LD options to eliminate unused sections
|
|
LDFLAGS := ${MMCU} -Wl,--gc-sections
|
|
|
|
# List all source files
|
|
SOURCES := $(foreach path, $(VPATH), \
|
|
$(wildcard ${path}/*.c) $(wildcard ${path}/*.cpp) $(wildcard ${path}/*.S))
|
|
# Remove main.cpp from the Arduino core libraries (instead of the local project)
|
|
# This allows us to use the proper main() function instead of setup() and loop()
|
|
SOURCES := $(filter-out ${ARDUINO_HW}%main.cpp, ${SOURCES})
|
|
# Strip path from the file names, since they are in VPATH, which means
|
|
# we don't need to include the full paths
|
|
SOURCES := $(foreach file, ${SOURCES}, $(notdir ${file}))
|
|
# Translate everything to target object files
|
|
OBJS := ${SOURCES}
|
|
OBJS := $(patsubst %.c, ${BUILD_DIR}/%.o, ${OBJS})
|
|
OBJS := $(patsubst %.cpp, ${BUILD_DIR}/%.o, ${OBJS})
|
|
OBJS := $(patsubst %.S, ${BUILD_DIR}/%_asm.o, ${OBJS})
|
|
|
|
PROGRAM := arduino-otp
|
|
|
|
# Build rules for different source types
|
|
${BUILD_DIR}/%.o: %.c
|
|
mkdir -p ${BUILD_DIR}
|
|
${CC} ${CFLAGS} -c $< -o $@
|
|
|
|
${BUILD_DIR}/%.o: %.cpp
|
|
mkdir -p ${BUILD_DIR}
|
|
${CXX} ${CFLAGS} -c $< -o $@
|
|
|
|
${BUILD_DIR}/%_asm.o: %.S
|
|
mkdir -p ${BUILD_DIR}
|
|
${CC} ${CFLAGS} -c $< -o $@
|
|
|
|
${BUILD_DIR}/${PROGRAM}.elf: ${OBJS}
|
|
${CC} ${LDFLAGS} $^ -o $@
|
|
|
|
${BUILD_DIR}/${PROGRAM}.hex: ${BUILD_DIR}/${PROGRAM}.elf
|
|
${OBJCOPY} -O ihex -R .eeprom $< $@
|
|
|
|
define to-json-array
|
|
$(shell echo '$(foreach path, $1, "${path}",)' | sed "s/,$$//")
|
|
endef
|
|
|
|
# vscode intellisense configuration file
|
|
# note that vscode will automatically format the generated file
|
|
.vscode/c_cpp_properties.json: c_cpp_properties.json.template
|
|
mkdir -p .vscode
|
|
sed 's@__includePaths__@$(call to-json-array, ${AVR_INC} ${VPATH} ${VARIANTS})@' c_cpp_properties.json.template > .vscode/c_cpp_properties.json
|
|
|
|
.PHONY: all clean upload vscode pitch_table
|
|
|
|
all: ${BUILD_DIR}/${PROGRAM}.hex
|
|
|
|
clean:
|
|
rm -rf ${BUILD_DIR}
|
|
|
|
upload: all
|
|
ifndef PORT
|
|
$(error PORT is undefined)
|
|
endif
|
|
${AVRDUDE} -F -V -c arduino -p ATMEGA328P -P ${PORT} -b 115200 -D -U flash:w:${BUILD_DIR}/${PROGRAM}.hex
|
|
|
|
vscode:
|
|
rm -rf .vscode/c_cpp_properties.json
|
|
make .vscode/c_cpp_properties.json
|
|
|
|
pitch_table:
|
|
python gen_pitch_table.py > pitch_table.h
|