###############################################################################
# Makefile for the project C-Epilepsy
###############################################################################

## General Flags
PROJECT = C-Epilepsy
ifndef MCU
MCU = atmega644p
endif

TARGET = C-Epilepsy.elf
CC = avr-gcc

CPP = avr-g++

## Options common to compile, link and assembly rules
COMMON = -mmcu=$(MCU) -DMCU=$(MCU)
#COMMON = 

## Compile options common for all C compilation units.
CFLAGS += $(COMMON)
CFLAGS += -Wall -gdwarf-2 -std=gnu99 -DF_CPU=20000000UL -O2 -funsigned-char -funsigned-bitfields -fpack-struct -fshort-enums
CFLAGS += -MD -MP -MT $(*F).o -MF dep/$(@F).d 

## Assembly specific flags
ASMFLAGS = $(COMMON)
ASMFLAGS += $(CFLAGS)
ASMFLAGS += -x assembler-with-cpp -Wa,-gdwarf2

## Linker flags
LDFLAGS = $(COMMON)
LDFLAGS +=  -Wl,-Map=C-Epilepsy.map


## Intel Hex file production flags
HEX_FLASH_FLAGS = -R .eeprom -R .fuse -R .lock -R .signature

HEX_EEPROM_FLAGS = -j .eeprom
HEX_EEPROM_FLAGS += --set-section-flags=.eeprom="alloc,load"
HEX_EEPROM_FLAGS += --change-section-lma .eeprom=0 --no-change-warnings


## Objects that must be built in order to link
OBJECTS = main.o usart0.o usart1.o timer0.o timer1.o led_out.o player.o epi_helpers.o nc_handler.o buttons.o eeprom.o integer_math.o

## Objects explicitly added by the user
LINKONLYOBJECTS = 

## Build
all: $(TARGET) C-Epilepsy.hex C-Epilepsy.eep C-Epilepsy.lss size

## Compile
main.o: ../main.c
	$(CC) $(INCLUDES) $(CFLAGS) -c  $<

usart0.o: ../usart0.c
	$(CC) $(INCLUDES) $(CFLAGS) -c  $<

usart1.o: ../usart1.c
	$(CC) $(INCLUDES) $(CFLAGS) -c  $<
	
timer0.o: ../timer0.c
	$(CC) $(INCLUDES) $(CFLAGS) -c  $<
	
timer1.o: ../timer1.c
	$(CC) $(INCLUDES) $(CFLAGS) -c  $<

led_out.o: ../led_out.c
	$(CC) $(INCLUDES) $(CFLAGS) -c  $<

player.o: ../player.c
	$(CC) $(INCLUDES) $(CFLAGS) -c  $<

epi_helpers.o: ../epi_helpers.c
	$(CC) $(INCLUDES) $(CFLAGS) -c  $<

nc_handler.o: ../nc_handler.c
	$(CC) $(INCLUDES) $(CFLAGS) -c  $<

buttons.o: ../buttons.c
	$(CC) $(INCLUDES) $(CFLAGS) -c  $<

eeprom.o: ../eeprom.c
	$(CC) $(INCLUDES) $(CFLAGS) -c  $<

integer_math.o: ../integer_math.c
	$(CC) $(INCLUDES) $(CFLAGS) -c  $<
	
##Link
$(TARGET): $(OBJECTS)
	 $(CC) $(LDFLAGS) $(OBJECTS) $(LINKONLYOBJECTS) $(LIBDIRS) $(LIBS) -o $(TARGET)

%.hex: $(TARGET)
	avr-objcopy -O ihex $(HEX_FLASH_FLAGS)  $< $@

%.eep: $(TARGET)
	-avr-objcopy $(HEX_EEPROM_FLAGS) -O ihex $< $@ || exit 0

%.lss: $(TARGET)
	avr-objdump -h -S $< > $@

size: ${TARGET}
	@echo
	@avr-size -C --mcu=${MCU} ${TARGET}

## Clean target
.PHONY: clean
clean:
	-rm -rf $(OBJECTS) C-Epilepsy.elf dep/* C-Epilepsy.hex C-Epilepsy.eep C-Epilepsy.lss C-Epilepsy.map


## Other dependencies
-include $(shell mkdir dep 2>/dev/null) $(wildcard dep/*)