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DEVICE = atmega328p
MCU = atmega328p
AVRDUDE_DEVICE = m328p
DEVICE ?= atmega168
MCU ?= atmega168
AVRDUDE_DEVICE ?= m168
PORT ?= /dev/ttyACM0
CFLAGS=-g -Wall $(DEVICE_SPECIFIC_CFLAGS) -Os
LDFLAGS=-Wl,-gc-sections -Wl,-relax
SOURCES := $(filter-out sim.c, $(wildcard *.c))
HEADERS := $(filter-out sim.h, $(wildcard *.h))
# simulation
# SIM = true
CFLAGS += $(if $(SIM), -DW2_SIM, -mcall-prologues -mmcu=$(MCU))
LDFLAGS += $(if $(SIM), , -lpololu_$(DEVICE))
PREFIX := $(if $(SIM), , avr-)
SOURCES += $(if $(SIM), sim.c, )
HEADERS += $(if $(SIM), sim.h, )
OBJECTS := $(patsubst %.c,%.o, $(SOURCES))
AVRDUDE=avrdude
CC=$(PREFIX)gcc
OBJ2HEX=$(PREFIX)objcopy
# debug build info string
BUILD_STR=$(shell git update-index -q --refresh; git describe --tags --dirty='*' --broken='x' | cut -c1-20)
CFLAGS += -DW2_BUILD_STR="$(BUILD_STR)"
all: $(if $(SIM), a.out, out.hex)
clean:
rm -f *.o out.hex a.out compile_commands.json
a.out: $(OBJECTS)
$(CC) $(OBJECTS) $(CFLAGS) $(LDFLAGS)
.o:
$(CC) -c $(CFLAGS) $<
out.hex: a.out
$(OBJ2HEX) -R .eeprom -O ihex $< $@
$(info build $(BUILD_STR) complete)
flash: out.hex
$(AVRDUDE) -p $(AVRDUDE_DEVICE) -c avrisp2 -P $(PORT) -U flash:w:out.hex
format:
$(eval SOURCES := $(filter-out sim.c, $(SOURCES)))
$(eval HEADERS := $(filter-out sim.h, $(HEADERS)))
clang-format -i $(SOURCES) $(HEADERS)
clang-tidy --fix-errors $(SOURCES) $(HEADERS)
compile_commands: clean
bear -- make
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