#/****************************************************************************
# *   Copyright (C) 2009-2012 by Claas Anders "CaScAdE" Rathje               *
# *   admiralcascade@gmail.com                                               *
# *   Project-URL: http://www.mylifesucks.de/oss/c-strom/                      *
# *                                                                          *
# *   This program is free software; you can redistribute it and/or modify   *
# *   it under the terms of the GNU General Public License as published by   *
# *   the Free Software Foundation; either version 2 of the License.         *
# *                                                                          *
# *   This program is distributed in the hope that it will be useful,        *
# *   but WITHOUT ANY WARRANTY; without even the implied warranty of         *
# *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the          *
# *   GNU General Public License for more details.                           *
# *                                                                          *
# *   You should have received a copy of the GNU General Public License      *
# *   along with this program; if not, write to the                          *
# *   Free Software Foundation, Inc.,                                        *
# *   59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.              *
# ****************************************************************************/

## General Flags
PROJECT = C-Strom
MCU = atmega8
TARGET = C-Strom.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 -gdwarf-2 -std=gnu99 -DF_CPU=8000000UL -Os -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-Strom.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 = C-Strom.o i2c_slave.o 

## Objects explicitly added by the user
LINKONLYOBJECTS = 

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

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

i2c_slave.o: ../i2c_slave.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-Strom.elf dep/* C-Strom.hex C-Strom.eep C-Strom.lss C-Strom.map


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