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Makefile
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########++++++++++++++++++++++++++++++++++########
##++---- Makefile for CanDybug project ----++##
########++++++++++++++++++++++++++++++++++########
# optimization
OPT = -O3
DEBUG = 0
TARGET = CanDybug
# Build path
BUILD_DIR = build_$(VID)_$(PID)
##++---- Target configuration ----++##
CORE = m0
SERIES = STM32F0
BSP = BSP_STM32F042
C_DEFS = \
-DUSBD_VID=0x$(VID) \
-DUSBD_PID=0x$(PID)
ifdef HSE_HZ
C_DEFS += -DHSE_VALUE_Hz=$(HSE_HZ)
endif
ifdef DP_PIN
C_DEFS += -DUSB_CONNECT_PIN=$(DP_PIN)
endif
##++---- Build tool binaries ----++##
BINPATH = /usr/bin
PREFIX = arm-none-eabi-
CC = $(BINPATH)/$(PREFIX)gcc
AS = $(BINPATH)/$(PREFIX)gcc -x assembler-with-cpp
CP = $(BINPATH)/$(PREFIX)objcopy
AR = $(BINPATH)/$(PREFIX)ar
SZ = $(BINPATH)/$(PREFIX)size
HEX = $(CP) -O ihex
BIN = $(CP) -O binary -S
##++---- MCU config ----++##
CPU = -mcpu=cortex-$(CORE)
MCU = $(CPU) -mthumb -mfloat-abi=soft
##++---- Assembler ----++##
AS_DEFS =
AS_INCLUDES =
# assembly sources
AS_SOURCES = $(wildcard $(BSP)/*.s)
# assembler flags
ASFLAGS = $(MCU) $(AS_DEFS) $(AS_INCLUDES) $(OPT) -Wall -fdata-sections -ffunction-sections
##++---- Compiler ----++##
C_STANDARD = -std=gnu11
XPD_DIR = STM32_XPD
USBD_DIR = USBDevice
# All USBDevice classes are built, but only DFU is used
# C includes
C_INCLUDES = \
-I$(BSP) \
-IApp \
-I$(USBD_DIR)/Include \
-I$(USBD_DIR)/PDs/STM32_XPD \
-I$(XPD_DIR)/CMSIS/Include \
-I$(XPD_DIR)/CMSIS/Device/ST/$(SERIES)xx/Include \
-I$(XPD_DIR)/$(SERIES)_XPD/inc
# C sources
C_SOURCES = \
$(wildcard $(BSP)/*.c) \
$(wildcard App/*.c) \
$(wildcard $(USBD_DIR)/Device/*.c) \
$(wildcard $(USBD_DIR)/Class/CDC/*.c) \
$(wildcard $(USBD_DIR)/Class/DFU/*.c) \
$(wildcard $(XPD_DIR)/$(SERIES)_XPD/src/*.c)
# compiler flags
CFLAGS = $(MCU) $(C_DEFS) $(C_INCLUDES) $(OPT) -Wall -fdata-sections -ffunction-sections $(C_STANDARD)
ifeq ($(DEBUG), 1)
CFLAGS += -g -gdwarf-2
endif
# Generate dependency information
CFLAGS += -MMD -MP -MF"$(@:%.o=%.d)" -MT"$(@:%.o=%.d)"
##++---- Linker ----++##
# link script
LDSCRIPT = $(wildcard $(BSP)/*.ld)
# libraries
LIBS = -lc -lm -lnosys
LIBDIR =
LDFLAGS = $(MCU) -specs=nano.specs -T$(LDSCRIPT) $(LIBDIR) $(LIBS) -Wl,-Map=$(BUILD_DIR)/$(TARGET).map,--cref -Wl,--gc-sections
##++---- Build the application ----++##
# default action: build all
all: $(BUILD_DIR)/$(TARGET).elf $(BUILD_DIR)/$(TARGET).hex
# list of objects
OBJECTS = $(addprefix $(BUILD_DIR)/,$(notdir $(C_SOURCES:.c=.o)))
vpath %.c $(sort $(dir $(C_SOURCES)))
# list of ASM program objects
OBJECTS += $(addprefix $(BUILD_DIR)/,$(notdir $(AS_SOURCES:.s=.o)))
vpath %.s $(sort $(dir $(AS_SOURCES)))
$(BUILD_DIR)/%.o: %.c Makefile | $(BUILD_DIR)
$(CC) -c $(CFLAGS) -Wa,-a,-ad,-alms=$(BUILD_DIR)/$(notdir $(<:.c=.lst)) $< -o $@
$(BUILD_DIR)/%.o: %.s Makefile | $(BUILD_DIR)
$(AS) -c $(CFLAGS) $< -o $@
$(BUILD_DIR)/$(TARGET).elf: $(OBJECTS) Makefile
$(CC) $(OBJECTS) $(LDFLAGS) -o $@
$(SZ) $@
$(BUILD_DIR)/%.hex: $(BUILD_DIR)/%.elf | $(BUILD_DIR)
$(HEX) $< $@
$(BUILD_DIR):
mkdir $@
##++---- Clean ----++##
clean:
-rm -fR .dep $(BUILD_DIR)
##++---- Dependencies ----++##
-include $(shell mkdir .dep 2>/dev/null) $(wildcard .dep/*)
# *** EOF ***