# Name: Makefile
# Tabsize: 4

DEVICE  = atmega8
F_CPU   = 8000000	# in Hz
FUSE_L  = # see below for fuse values for particular devices
FUSE_H  = 
AVRDUDE = avrdude -c usbasp -p m8 #$(DEVICE) # edit this line for your programmer

#CFLAGS  = -Iusbdrv -I. -DDEBUG_LEVEL=0
CFLAGS  = -I. -DDEBUG_LEVEL=0
#OBJECTS = usbdrv/usbdrv.o usbdrv/usbdrvasm.o usbdrv/oddebug.o main.o
OBJECTS = main.o

COMPILE = avr-gcc -Wall -Os -DF_CPU=$(F_CPU) $(CFLAGS) -mmcu=$(DEVICE)

# symbolic targets:
help:
	@echo "This Makefile has no default rule. Use one of the following:"
	@echo "make hex ....... to build main.hex"
	@echo "make flash ..... to flash the firmware (use this on metaboard)"
	@echo "make clean ..... to delete objects and hex file"

hex: main.hex

# rule for uploading firmware:
flash: main.hex
	$(AVRDUDE) -U flash:w:main.hex:i

# rule for deleting dependent files (those which can be built by Make):
clean:
	rm -f main.hex main.lst main.obj main.cof main.list main.map main.eep.hex main.elf *.o
#	rm -f main.hex main.lst main.obj main.cof main.list main.map main.eep.hex main.elf *.o usbdrv/*.o main.s usbdrv/oddebug.s usbdrv/usbdrv.s

# Generic rule for compiling C files:
.c.o:
	$(COMPILE) -c $< -o $@

# Generic rule for assembling Assembler source files:
.S.o:
	$(COMPILE) -x assembler-with-cpp -c $< -o $@
# "-x assembler-with-cpp" should not be necessary since this is the default
# file type for the .S (with capital S) extension. However, upper case
# characters are not always preserved on Windows. To ensure WinAVR
# compatibility define the file type manually.

# Generic rule for compiling C to assembler, used for debugging only.
.c.s:
	$(COMPILE) -S $< -o $@

# file targets:

main.elf: $(OBJECTS)	# usbdrv dependency only needed because we copy it
	$(COMPILE) -o main.elf $(OBJECTS)

main.hex: main.elf
	rm -f main.hex main.eep.hex
	avr-objcopy -j .text -j .data -O ihex main.elf main.hex
	avr-size main.hex

# debugging targets:

disasm:	main.elf
	avr-objdump -d main.elf

cpp:
	$(COMPILE) -E main.c