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PRG            = main

OBJ            = main.o

MCU_TARGET     = atmega88

OPTIMIZE       = -Os -mcall-prologues

# grep bios.map for __bios_ram_end to retreive this value

# In the future, this should be automatically inserted into *_app.ld at every bios compilation

BIOS_RAM_END   = 0x0080012a

DEFS           = -I../AVR-Bios

LIBS           =

# You should not have to change anything below here.

CC             = avr-gcc

# Override is only needed by avr-lib build system.

override CFLAGS        = -g -Wall $(OPTIMIZE) -mmcu=$(MCU_TARGET) $(DEFS)

override LDFLAGS       = -v -Wl,-Map,$(PRG).map,-L../AVR-Bios,--defsym,__bios_ram_end=$(BIOS_RAM_END),-T$(MCU_TARGET)_app.ld

override ASFLAGS       = -x assembler-with-cpp -Wa,-gstabs -mmcu=$(MCU_TARGET) $(DEFS)

OBJCOPY        = avr-objcopy

OBJDUMP        = avr-objdump

SIZE           = avr-size

SZFLAGS        = 

UPLOAD         = avrdude

ULFLAGS        = -p $(MCU_TARGET) -D -P /dev/ttyUSB0 -c avrispv2 -b 115200 -U flash:w:$(PRG).hex

# -D disables erase!

default: $(PRG).elf lst text

	@$(SIZE) $(SZFLAGS) $(PRG).elf

all: $(PRG).elf lst text eeprom

$(PRG).elf: $(OBJ)

ifeq ($(MCU_TARGET),atmega88)

	#remove this workaround when gcc-bug fixed

	avr-ld -m avr4 -o $(PRG).elf /usr/avr/lib/avr4/crtm88.o -L/usr/lib/gcc/avr/4.1.0/avr4 -L/usr/lib/gcc/avr/4.1.0/avr4 -L/usr/avr/lib/avr4 -Map $(PRG).map -L../AVR-Bios --defsym __bios_ram_end=$(BIOS_RAM_END) -T$(MCU_TARGET)_app.ld $(OBJ) -lgcc -lc -lgcc

else

	$(CC) $(CFLAGS) $(LDFLAGS) -o $@ $^ $(LIBS)

endif

clean:

	rm -rf *.o $(PRG).elf *.eps *.png *.pdf *.bak 

	rm -rf *.lst *.map $(EXTRA_CLEAN_FILES)

lst:  $(PRG).lst

%.lst: %.elf

	$(OBJDUMP) -h -S $< > $@

# Rules for building the .text rom images

text: hex bin srec

hex:  $(PRG).hex

bin:  $(PRG).bin

srec: $(PRG).srec

%.hex: %.elf

	$(OBJCOPY) -j .text -j .data -O ihex $< $@

%.srec: %.elf

	$(OBJCOPY) -j .text -j .data -O srec $< $@

%.bin: %.elf

	$(OBJCOPY) -j .text -j .data -O binary $< $@

# Rules for uploading rom images to flash

install: hex

	$(UPLOAD) $(ULFLAGS)

# Rules for building the .eeprom rom images

eeprom: ehex ebin esrec

ehex:  $(PRG)_eeprom.hex

ebin:  $(PRG)_eeprom.bin

esrec: $(PRG)_eeprom.srec

%_eeprom.hex: %.elf

	$(OBJCOPY) -j .eeprom --change-section-lma .eeprom=0 -O ihex $< $@

%_eeprom.srec: %.elf

	$(OBJCOPY) -j .eeprom --change-section-lma .eeprom=0 -O srec $< $@

%_eeprom.bin: %.elf

	$(OBJCOPY) -j .eeprom --change-section-lma .eeprom=0 -O binary $< $@

# Every thing below here is used by avr-libc's build system and can be ignored

# by the casual user.

FIG2DEV                 = fig2dev

EXTRA_CLEAN_FILES       = *.hex *.bin *.srec

dox: eps png pdf

eps: $(PRG).eps

png: $(PRG).png

pdf: $(PRG).pdf

%.eps: %.fig

	$(FIG2DEV) -L eps $< $@

%.pdf: %.fig

	$(FIG2DEV) -L pdf $< $@

%.png: %.fig

	$(FIG2DEV) -L png $< $@