Makefile.include

#Ref: https://github.com/Malkavian/tuts/blob/master/stm/blinky/Makefile
#Ref: http://wiki.csie.ncku.edu.tw/embedded/Lab6

STM32_LIB  = ../../Libraries
STM32_UTIL = ../../Utilities

vpath %.c $(STM32_LIB)/STM32F4xx_StdPeriph_Driver/src

SRCS   += main.c

CC 	= arm-none-eabi-gcc
OBJCOPY = arm-none-eabi-objcopy
GDB     = arm-none-eabi-gdb

SRCS   += system_stm32f4xx.c

SRCS   += $(STM32_LIB)/CMSIS/ST/STM32F4xx/Source/Templates/gcc_ride7/startup_stm32f4xx.s

INC_DIRS  = $(STM32_UTIL)/STM32F4-Discovery
INC_DIRS += $(STM32_LIB)/CMSIS/Include
INC_DIRS += $(STM32_LIB)/CMSIS/ST/STM32F4xx/Include
INC_DIRS += $(STM32_LIB)/STM32F4xx_StdPeriph_Driver/inc
INC_DIRS += $(STM32_LIB)/STM32_USB_Device_Library/Class/hid/inc
INC_DIRS += $(STM32_LIB)/STM32_USB_Device_Library/Core/inc
INC_DIRS += .

INCLUDE = $(addprefix -I,$(INC_DIRS))

CFLAGS  = -ggdb
CFLAGS += -O0
CFLAGS += -Wall -Wextra -Warray-bounds
CFLAGS += -mlittle-endian -mthumb -mcpu=cortex-m4 -mthumb-interwork
CFLAGS += -mfloat-abi=hard -mfpu=fpv4-sp-d16
CFLAGS += -ffreestanding -nostdlib

DEFS    = -DUSE_STDPERIPH_DRIVER
DEFS   += -DUSE_USB_OTG_FS=1

LFLAGS  = -Tstm32_flash.ld

#OBJS    = $(SRCS:.c=.o)

###############################################################################

.PHONY: all clean flash debug

all: $(PROJ_NAME).elf

$(PROJ_NAME).elf: $(SRCS)
	$(CC) $(INCLUDE) $(DEFS) $(CFLAGS) $(LFLAGS) $^ -o $@
	$(OBJCOPY) -O ihex $(PROJ_NAME).elf $(PROJ_NAME).hex
	$(OBJCOPY) -O binary $(PROJ_NAME).elf $(PROJ_NAME).bin

clean:
	rm -f *.o $(PROJ_NAME).elf $(PROJ_NAME).hex $(PROJ_NAME).bin

flash:
	st-flash write $(PROJ_NAME).bin 0x8000000

debug:
	$(GDB) -tui -q -iex "add-auto-load-safe-path .gdbinit" $(PROJ_NAME).elf