# Makefile for balloon AVR circuits
#
# Copyright 2007, Jon McClintock
#
# This software is licensed under the CC-GNU GPL. 

PATH    := /usr/local/avr/bin
CROSS   := avr-
CC      := $(PATH)/$(CROSS)gcc
AR      := $(PATH)/$(CROSS)ar
OBJCOPY := $(PATH)/$(CROSS)objcopy
RANLIB  := $(PATH)/$(CROSS)ranlib

MMCU    := attiny85
CFLAGS  := -DAVR -mmcu=$(MMCU)

EXTRADEFS := CROSS=avr- AVRCFLAGS=$(CFLAGS) OPTIMIZE=-Os 

all: cutdown.hex camera.hex

%.a:
	$(MAKE) -C $(@D) $(EXTRADEFS) $<

%.elf: %.o $(PROJECT_LIBS)
	$(CC) $(CFLAGS) -Os -o $*.elf -Wl,-Map,$*.map $*.o $(PROJECT_LIBS)

%.hex: %.elf
	$(OBJCOPY) -j .text -O ihex $< $@

%.o: %.c 
	$(CC) $(PROJECT_INCLUDES) -Os -mmcu=$(MMCU) -c $< -o $@

clean:
	/bin/rm -f *.hex *.map *.o *.elf

.PRECIOUS: %.o