#-----------------------------------------------------------------
# Hier zunaechst die Teile, die ggf. fuer ein neues Projekt anzupassen sind:
#-----------------------------------------------------------------

# PRG ist der Name des Programms:
PRG            = pwm

# FILES ist die Liste der C-Quelldateien, aus denen das Programm erzeugt wird:
FILES          = pwm.c


# MCU_TARGET gibt den Microcontroller der AVR-Familie an, fuer den Code erzeugt werden soll
MCU_TARGET     = atmega32

# Falls zusätzliche Compiler- oder Linker-Optionen nötig sind, so waeren diese
# hier aufzulisten:
DEFS           = -DF_CPU=16000000
LIBS           =


#-----------------------------------------------------------------
# Von hier an sollten keine Aenderungen mehr noetig sein:
#-----------------------------------------------------------------
OBJ            = $(FILES:.c=.o)
OPTIMIZE       = -Os


CC             = avr-gcc

CFLAGS        = -g -Wall $(OPTIMIZE) -mmcu=$(MCU_TARGET) $(DEFS)
LDFLAGS       = -Wl,-Map,$(PRG).map

OBJCOPY        = avr-objcopy
OBJDUMP        = avr-objdump

AVRDUDE_PROGRAMMER = ponyser

# RS-232-Schnittstelle, ueber die programmiert wird
AVRDUDE_PORT = /dev/ttyACM0

AVRDUDE_WRITE_FLASH = -U flash:w:$(PRG).hex
# Uncomment the following if you want avrdude's erase cycle counter.
# Note that this counter needs to be initialized first using -Yn,
# see avrdude manual.
#AVRDUDE_ERASE_COUNTER = -y

# Uncomment the following if you do /not/ wish a verification to be
# performed after programming the device.
#AVRDUDE_NO_VERIFY = -V

# Increase verbosity level.  Please use this when submitting bug
# reports about avrdude. See <http://savannah.nongnu.org/projects/avrdude> 
# to submit bug reports.
#AVRDUDE_VERBOSE = -v -v
AVRDUDE_FLAGS = -p $(MCU_TARGET) -P $(AVRDUDE_PORT) -c $(AVRDUDE_PROGRAMMER)
AVRDUDE_FLAGS += $(AVRDUDE_NO_VERIFY)
AVRDUDE_FLAGS += $(AVRDUDE_VERBOSE)
AVRDUDE_FLAGS += $(AVRDUDE_ERASE_COUNTER)

all: $(PRG).elf lst text eeprom

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


program: $(PRG).hex
	avrdude $(AVRDUDE_FLAGS) $(AVRDUDE_WRITE_FLASH) $(AVRDUDE_WRITE_EEPROM)


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 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.

EXTRA_CLEAN_FILES       = *.hex *.bin *.srec *.eps