CROSS_COMPILE:=arm-none-eabi-
CC:=$(CROSS_COMPILE)gcc
LD:=$(CROSS_COMPILE)gcc
VERSION?=1

OBJS:=startup.o main.o system.o  mem.o led.o \
	i2c.o display.o font_twisted.o button.o systick.o newlib.o uart.o ui.o timer.o\
	mutex.o ui_tester.o adc.o spi.o


UMX:=lib/unicore-mx/lib/libucmx_stm32f4.a
UMXFLAGS:=-Ilib/unicore-mx/include/ -DSTM32F4
LIBS+=$(UMX)


LSCRIPT:=target.ld

OBJCOPY:=$(CROSS_COMPILE)objcopy

CFLAGS:=-mcpu=cortex-m3 -mthumb -Wall -Wno-main -Wstack-usage=320 \
   	-ffreestanding -Wno-unused -DBLOCK_SIZE=4096 -I. -Ilib/unicore-mx/include \
    -ffunction-sections -fdata-sections
CFLAGS+=-specs=nano.specs -lc -lg 
CFLAGS+=$(UMXFLAGS)
CFLAGS+=-O3
#CFLAGS+=-g -ggdb3

ASFLAGS:=$(CFLAGS)

LDFLAGS:=-T $(LSCRIPT) -Wl,-gc-sections -Wl,-Map=image.map -mcpu=cortex-m3 -mthumb -nostartfiles

#all: image.bin

image.bin: image.elf
	$(OBJCOPY) -O binary $^ $@

image.elf: $(LIBS) $(OBJS) $(LSCRIPT)
	$(LD) $(LDFLAGS) $(OBJS) $(LIBS) -o $@

$(UMX):
	make -C lib/unicore-mx FP_FLAGS="-O3 -mfloat-abi=soft" TARGETS=stm32/f4

clean:
	@rm -f image.bin image.elf *.o image.map $(USECFS)/src/*.o
	make -C lib/unicore-mx clean