PROJECT=rapper
PLATFORM ?= arm-none-eabi
LDFLAGS=--gc-sections -g -T LPC1768-flash.ld
CFLAGS=-W -Wall --std=gnu99 -fgnu89-inline -mcpu=cortex-m3 -mthumb -ffunction-sections -fdata-sections -I. -g
#CFLAGS+=-Os

# objects are separated by space
OBJECTS=startup.o system_LPC17xx.o main.o core_cm3.o


all: $(PROJECT).elf

$(PROJECT).elf: $(OBJECTS)
	$(PLATFORM)-ld -Map $(PROJECT).map $(LDFLAGS) $(OBJECTS) -o $@

%.o: %.c
	$(PLATFORM)-gcc -MM $< -MF $(patsubst %.o,%.d,$@) -MP
	$(PLATFORM)-gcc $(CFLAGS) -c $< -o $@

.PHONY: clean gdb

clean:
	rm -f $(PROJECT).elf $(OBJECTS) $(OBJECTS:.o=.d) $(PROJECT).map

gdb:
	$(PLATFORM)-gdb $(PROJECT).elf