PRG            = alix-usv
OBJ            = alix-usv.o eeprom.o usi-i2c-slave.o
MCU_TARGET     = attiny84
OPTIMIZE       = -Os

DEFS           =
LIBS           =

# Override is only needed by avr-lib build system.
override CFLAGS        = -g -Wall $(OPTIMIZE) -mmcu=$(MCU_TARGET) $(DEFS)
override LDFLAGS       = -Wl,-Map,$(PRG).map

CC             = avr-gcc
OBJCOPY        = avr-objcopy
OBJDUMP        = avr-objdump
SIZE           = avr-size

all: $(PRG).elf lst text
	$(SIZE) -x -A $(PRG).elf

$(PRG).elf: $(OBJ)
	$(CC) $(CFLAGS) $(LDFLAGS) -o $@ $^ $(LIBS)

clean:
	rm -rf *.o *.lst *.map $(PRG).elf *.hex *.bin

lst:  $(PRG).lst

%.lst: %.elf
	$(OBJDUMP) -h -S $< > $@

text: hex bin

hex:  $(PRG).hex
bin:  $(PRG).bin

%.hex: %.elf
	$(OBJCOPY) -j .text -j .data -O ihex $< $@

%.bin: %.elf
	$(OBJCOPY) -j .text -j .data -O binary $< $@

install: text
	avrdude -c dragon_isp -P usb -p t84 -U flash:w:$(PRG).hex

# no self programming, 2.7V BOD, 8MHz internal RC Osz.
fuses:
	avrdude -c dragon_isp -P usb -p t84 -U lfuse:w:0xc2:m -U hfuse:w:0xdd:m -U efuse:w:0xff:m