TARGET     = rc5switch
TARGET_MCU = attiny24

# ---------------------------------------------------------

BUILD   = build

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

override CFLAGS  = -g -Wall -Os -mmcu=$(TARGET_MCU) -Wa,-gstabs,-adhlns=$(BUILD)/$(*D)/$(*F).lst -MMD -MP -MF $(BUILD)/$(*D)/$(*F).d -pipe
override LDFLAGS = -Wl,-Map=$(BUILD)/$(TARGET).map,--cref

# ---------------------------------------------------------

SRC := $(wildcard *.c)

all: $(addprefix $(BUILD)/$(TARGET), .elf .lss .sym .bin .hex _eeprom.bin _eeprom.hex)
#	@$(SIZE) -x -C --mcu=$(TARGET_MCU) $<

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

%.sym: %.elf
	@$(NM) -n $< > $@

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

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

%_eeprom.bin: %.elf
	@$(OBJCOPY) -j .eeprom --change-section-lma .eeprom=0 -O binary $< $@ 2> /dev/null

%_eeprom.hex: %.elf
	@$(OBJCOPY) -j .eeprom --change-section-lma .eeprom=0 -O ihex $< $@ 2> /dev/null

$(BUILD)/$(TARGET).elf: $(patsubst %,$(BUILD)/%,$(SRC:.c=.o))
	@echo " Linking file:  $@"
	@$(CC) $(CFLAGS) $^ -o $@ $(LDFLAGS) > /dev/null
	@$(SIZE) -x -B $^ $@

$(BUILD)/%.o: %.c $(MAKEFILE_LIST)
	@echo " Building file: $<"
	@$(shell mkdir -p $(BUILD)/$(*D))
	@$(CC) -c $(CFLAGS) $< -o $@

clean:
	rm -rf $(BUILD)

install: $(BUILD)/$(TARGET).hex $(BUILD)/$(TARGET)_eeprom.hex
	avrdude -c dragon_isp -P usb -p t24 -U flash:w:$(BUILD)/$(TARGET).hex -U eeprom:w:$(BUILD)/$(TARGET)_eeprom.hex

# no self programming, 2.7V BOD, 8MHz internal RC Osz.
fuses:
	avrdude -c dragon_isp -P usb -p t24 -U lfuse:w:0xc2:m -U hfuse:w:0xdd:m -U efuse:w:0xff:m

-include $(shell find $(BUILD) -name *.d 2> /dev/null)