###############################################################################
# Makefile for the project avr458
###############################################################################

## General Flags
PROJECT = avr458
MCU = attiny861
TARGET = $(PROJECT).elf
CC = avr-gcc

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

## Compile options common for all C compilation units.
CFLAGS = $(COMMON)
CFLAGS += -gdwarf-2 -std=gnu99 -Os -funsigned-char -funsigned-bitfields -fpack-struct -fshort-enums -ffunction-sections
CFLAGS += -fno-inline-small-functions -fno-split-wide-types
CFLAGS += -Wall -Wstrict-prototypes -Wundef -Wa,-adhlns=./$(*F).lst
CFLAGS += -MMD -MP -MF dep/$(@F).d  
CFLAGS += -DLIION

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

## Linker flags
LDFLAGS = $(COMMON)
LDFLAGS +=  -Wl,-Map=$(PROJECT).map,--cref -Wl,-relax -Wl,-gc-sections

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


## Libraries
LIBS = -lm 

## Objects that must be built in order to link
OBJECTS = ADC.o battery.o chargefunc.o main.o menu.o LIIONcharge.o OWI.o PWM.o statefunc.o time.o USI.o 

## Objects explicitly added by the user
LINKONLYOBJECTS = 

## Build
all: $(TARGET) $(PROJECT).hex $(PROJECT).eep $(PROJECT).lss size

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

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

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

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

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

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

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

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

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

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

USI.o: ../USI.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) $(PROJECT).elf dep $(PROJECT).hex $(PROJECT).eep $(PROJECT).lss $(PROJECT).map *.lst


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