###############################################################################
# Makefile for the project heizung
###############################################################################

## General Flags
PROJECT = heizung
MCU = atmega16
TARGET = heizung.elf
CC = avr-gcc

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

## Compile options common for all C compilation units.
CFLAGS = $(COMMON)
CFLAGS += -Wall -DF_CPU=7372800  -Os -funsigned-char -funsigned-bitfields -fpack-struct -fshort-enums
CFLAGS += -Wp,-M,-MP,-MT,$(*F).o,-MF,dep/$(@F).d 

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

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


## 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


## Libraries
LIBS = -lm 

## Objects that must be built in order to link
OBJECTS = brauchwasser.o holz.o dcf77.o display.o fuehler.o heizung.o wintek2704.o key.o main.o menu.o menustr.o oel.o solar.o source.o timebase.o uart.o 

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

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

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

dcf77.o: ../dcf77.c
	$(CC) $(INCLUDES) $(CFLAGS) -c  $<

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

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

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

wintek2704.o: ../wintek2704.c
	$(CC) $(INCLUDES) $(CFLAGS) -c  $<

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

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

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

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

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

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

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

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

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

##Link
$(TARGET): $(OBJECTS)
	 $(CC) $(LDFLAGS) $(OBJECTS) $(LIBDIRS) $(LIBS) -o $(TARGET)

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

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

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

size: ${TARGET}
	@echo
	@sh avr-mem.sh ${TARGET} ${MCU}

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


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