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# Makefile
# (c) 2022 Jonas Gunz <himself@jonasgunz.de>
# License: MIT
MCU = atmega8
# Only used by avrdude
PROGRAMMER = dragon_isp
CPUFREQ = 8000000 #8MHz
BAUD = 9600
# https://www.engbedded.com/fusecalc/
# Int. RC Osc. 8MHz
# No WD
# No BOD
LFUSE = 0xc4
HFUSE = 0xd9
CC = avr-gcc
CFLAGS = -std=c89 -Wall -mmcu=$(MCU) -DF_CPU=$(CPUFREQ) -DBAUD=$(BAUD)
LDFLAGS = -mmcu=$(MCU)
BUILDDIR = build
SOURCEDIR = src
OBJECTDIR = obj
OUTPUT = analog
SRCS = $(wildcard $(SOURCEDIR)/*.c)
OBJS = $(SRCS:.c=.o)
OBJ = $(OBJS:$(SOURCEDIR)/%=$(OBJECTDIR)/%)
build: dir $(OBJ)
@echo LD $(OBJ)
@$(CC) $(CFLAGS) -o $(BUILDDIR)/$(OUTPUT) $(OBJ) $(LDFLAGS)
@avr-objcopy -O ihex $(BUILDDIR)/$(OUTPUT) $(BUILDDIR)/$(OUTPUT).hex
@echo
@avr-size --mcu=$(MCU) --format=avr $(BUILDDIR)/$(OUTPUT)
debug: -D _DEBUG
debug: build;
dir:
@mkdir -p $(OBJECTDIR)
@mkdir -p $(BUILDDIR)
$(OBJECTDIR)/%.o: $(SOURCEDIR)/%.c
@echo CC $<
@$(CC) -c $(CFLAGS) $< -o $@
.PHONY: clean
clean:
@echo RM $(OBJ)
@echo RM $(BUILDDIR)/$(OUTPUT)
@rm -df $(OBJ)
@rm -Rdf $(BUILDDIR) $(OBJECTDIR)
all: clean build
flash: build
@sudo avrdude -p $(MCU) -c $(PROGRAMMER) -U flash:w:$(BUILDDIR)/$(OUTPUT).hex:i
flash-minipro: build
@sudo minipro -p $(MCU) -w $(BUILDDIR)/$(OUTPUT).hex -f ihex
fuse:
@sudo avrdude -p $(MCU) -c $(PROGRAMMER) -U lfuse:w:$(LFUSE):m -U hfuse:w:$(HFUSE):m
fuse-minipro: dir
@echo fuses_lo = $(LFUSE) > $(BUILDDIR)/fuses.conf
@echo fuses_hi = $(HFUSE) >> $(BUILDDIR)/fuses.conf
@echo lock_byte= 0xff >> $(BUILDDIR)/fuses.conf
@sudo minipro -p $(MCU) -c config -w $(BUILDDIR)/fuses.conf
devsetup:
@echo "--target=avr -isystem /usr/avr/include/ $(CFLAGS)" | tr ' ' '\n' > compile_flags.txt
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