AE-TYBLE16_Makefile

ARCH = arm-none-eabi
AS = $(ARCH)-gcc -x assembler-with-cpp
CC = $(ARCH)-gcc
LD = $(ARCH)-gcc

TARGET = output.elf

ASMS = ./nrfx/mdk/gcc_startup_nrf51.S
CSRCS = $(wildcard src/*.c) $(wildcard ./nrfx/drivers/src/*.c) nrfx/mdk/system_nrf51.c
OBJS = $(addprefix obj/,$(ASMS:.S=.o) $(CSRCS:.c=.o))

INCLUDES = -I ./nrfx -I ./nrfx/drivers/include -I ./nrfx/mdk -I ./nrfx/hal -I./inc -I ./CMSIS_5/CMSIS/Core/Include -I ./CMSIS_5/Device/ARM/ARMCM0/Include
DEFINES = -DNRF51 -DARMCM0 -D__START=main -D__STARTUP_CLEAR_BSS

FLAGS = -mcpu=cortex-m0 -mthumb -fsingle-precision-constant $(DEFINES)
CFLAGS = $(FLAGS) -ffunction-sections -fdata-sections -Wall -std=gnu11
LDFLAGS = $(FLAGS) -Wl,--gc-sections -T ./nrf51_xxaa.ld -nostartfiles --specs=nano.specs -u _printf_float
LIBS = 

all: $(TARGET)
	$(ARCH)-size $^

$(TARGET): $(OBJS)
	$(LD) $(LDFLAGS) -o $@ $^ $(LIBS)

obj/%.o: %.c
	@if [ ! -d $(dir $@) ]; then \
		mkdir -p $(dir $@); \
	fi
	$(CC) $(CFLAGS) $(INCLUDES) -c -o $@ $^

obj/%.o: %.S
	@if [ ! -d $(dir $@) ]; then \
		mkdir -p $(dir $@); \
	fi
	$(AS) $(FLAGS) -c -o $@ $^

.PHONY: flash
flash: $(TARGET)
	openocd -f interface/cmsis-dap.cfg -f target/nrf51.cfg -c 'program output.elf;reset;exit'

.PHONY: clean
clean:
	$(RM) -r $(TARGET) obj