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ARCH = atmega8
AVRDUDE_ARCH = m8
AVRDUDE = avrdude
AVRDUDE_SPEED = 1
PROGRAMMER = avrisp2
PROGPORT = usb
CC = avr-gcc
OBJCOPY = avr-objcopy
SIZE = avr-size
SPARSE = sparse
V = @ # Verbose build: make V=1
C = 0 # Sparsechecker build: make C=1
Q = $(V:1=)
QUIET_CC = $(Q:@=@echo ' CC '$@;)$(CC)
QUIET_OBJCOPY = $(Q:@=@echo ' OBJCOPY '$@;)$(OBJCOPY)
QUIET_SIZE = $(Q:@=@echo ' SIZE '$@;)$(SIZE)
ifeq ($(C),1)
QUIET_SPARSE = $(Q:@=@echo ' SPARSE '$@;)$(SPARSE)
else
QUIET_SPARSE = @/bin/true
endif
CFLAGS = -mmcu=$(ARCH) -std=gnu99 -g0 -O2 -Wall \
"-Dinline=inline __attribute__((__always_inline__))"
SPARSEFLAGS = $(CFLAGS) -I "/usr/lib/avr/include" -D__AVR_ARCH__=4 \
-D__AVR_ATmega8__=1 -D__ATTR_PROGMEM__="" -Dsignal=dllexport \
-Dexternally_visible=dllexport
OBJECTS = main.o util.o valves.o sensor.o remote.o
NAME = pressure_control
BIN = $(NAME).bin
HEX = $(NAME).hex
EEP = $(NAME).eep.hex
FUSES = $(NAME).fuses.bin
all: $(HEX) $(FUSES)
main.o: util.h calibration.h valves.h sensor.h remote.h main.h
util.o: util.h calibration.h
valves.o: util.h valves.h main.h
sensor.o: util.h sensor.h
remote.o: util.h remote.h calibration.h main.h valves.h
%.s: %.c
$(QUIET_CC) $(CFLAGS) -S $*.c
%.o: %.c
$(QUIET_SPARSE) $(SPARSEFLAGS) $<
$(QUIET_CC) -o $@ -c $(CFLAGS) $<
$(BIN): $(OBJECTS)
$(QUIET_CC) $(CFLAGS) -o $(BIN) $(OBJECTS) $(LDFLAGS)
$(HEX): $(BIN)
$(QUIET_OBJCOPY) -R.eeprom -R.fuse -O ihex $(BIN) $(HEX)
$(QUIET_OBJCOPY) -j.eeprom --set-section-flags=.eeprom="alloc,load" \
--change-section-lma .eeprom=0 -O ihex $(BIN) $(EEP)
$(QUIET_SIZE) $(BIN)
avrdude:
$(AVRDUDE) -B $(AVRDUDE_SPEED) -p $(AVRDUDE_ARCH) \
-c $(PROGRAMMER) -P $(PROGPORT) -t
install_flash:
$(AVRDUDE) -B $(AVRDUDE_SPEED) -p $(AVRDUDE_ARCH) \
-c $(PROGRAMMER) -P $(PROGPORT) -U flash:w:$(HEX)
install_eeprom:
$(AVRDUDE) -B $(AVRDUDE_SPEED) -p $(AVRDUDE_ARCH) \
-c $(PROGRAMMER) -P $(PROGPORT) -U eeprom:w:$(EEP)
install: all install_flash install_eeprom
# Reset the microcontroller through avrdude
reset:
$(AVRDUDE) -B $(AVRDUDE_SPEED) -p $(AVRDUDE_ARCH) \
-c $(PROGRAMMER) -P $(PROGPORT) \
-U signature:r:/dev/null:i -q -q
$(FUSES): $(BIN)
$(QUIET_OBJCOPY) -j.fuse -O binary $(BIN) $(FUSES)
writefuses: $(FUSES)
@echo Low fuse is: $$(hexdump -e '1/1 "0x%02X "' $(FUSES) | cut -d ' ' -f 1)
@echo High fuse is: $$(hexdump -e '1/1 "0x%02X "' $(FUSES) | cut -d ' ' -f 2)
$(AVRDUDE) -B 100 -p $(AVRDUDE_ARCH) \
-c $(PROGRAMMER) -P $(PROGPORT) -q -q \
-U lfuse:w:$$(hexdump -e '1/1 "0x%02X "' $(FUSES) | cut -d ' ' -f 1):m \
-U hfuse:w:$$(hexdump -e '1/1 "0x%02X "' $(FUSES) | cut -d ' ' -f 2):m
clean:
-rm -f *~ *.o $(BIN)
distclean: clean
-rm -f *.s $(HEX) $(EEP) $(FUSES)
help:
@echo "Makefile"
@echo ""
@echo "Targets:"
@echo " all - build the firmware (default target)"
@echo " clean - remove object files"
@echo " distclean - remove object, binary and hex files"
@echo ""
@echo "Targets that operate on the device through avrdude:"
@echo " install - flash the program code"
@echo " writefuse - write the fuse bits"
@echo " reset - pull the external device reset pin"
@echo " avrdude - run avrdude in interactive mode"
@echo ""
@echo "Generic targets:"
@echo " *.s - create an assembly file from a *.c file"
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