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Makefile
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PROJECT_NAME := sniffer
TARGETS := nrf52832_xxaa
OUTPUT_DIRECTORY := _build
SDK_ROOT := $(NRF_SDK_14)
PROJ_DIR := .
$(OUTPUT_DIRECTORY)/nrf52832_xxaa.out: \
LINKER_SCRIPT := nrf52.ld
# Source files common to all targets
SRC_FILES += \
$(PROJ_DIR)/main.c \
$(PROJ_DIR)/crc.c \
$(PROJ_DIR)/RTT/SEGGER_RTT.c \
$(PROJ_DIR)/RTT/SEGGER_RTT_printf.c \
$(SDK_ROOT)/components/toolchain/gcc/gcc_startup_nrf52.S \
$(SDK_ROOT)/components/toolchain/system_nrf52.c \
# Include folders common to all targets
INC_FOLDERS += \
$(PROJ_DIR) \
$(PROJ_DIR)/RTT \
$(SDK_ROOT)/components/device \
$(SDK_ROOT)/components/toolchain \
$(SDK_ROOT)/components/toolchain/cmsis/include \
$(SDK_ROOT)/components/toolchain/gcc \
# Libraries common to all targets
LIB_FILES += \
# Optimization flags
OPT = -O3 -g3
# Uncomment the line below to enable link time optimization
#OPT += -flto
# C flags common to all targets
CFLAGS += $(OPT)
CFLAGS += -DBOARD_PCA10040
CFLAGS += -DCONFIG_GPIO_AS_PINRESET
CFLAGS += -DFLOAT_ABI_HARD
CFLAGS += -DNRF52
CFLAGS += -DNRF52832_XXAA
CFLAGS += -DNRF52_PAN_74
CFLAGS += -DSWI_DISABLE0
CFLAGS += -mcpu=cortex-m4
CFLAGS += -mthumb -mabi=aapcs
CFLAGS += -Wall
CFLAGS += -mfloat-abi=hard -mfpu=fpv4-sp-d16
# keep every function in a separate section, this allows linker to discard unused ones
CFLAGS += -ffunction-sections -fdata-sections -fno-strict-aliasing
CFLAGS += -fno-builtin -fshort-enums
# C++ flags common to all targets
CXXFLAGS += $(OPT)
# Assembler flags common to all targets
ASMFLAGS += -g3
ASMFLAGS += -mcpu=cortex-m4
ASMFLAGS += -mthumb -mabi=aapcs
ASMFLAGS += -mfloat-abi=hard -mfpu=fpv4-sp-d16
ASMFLAGS += -DBOARD_PCA10040
ASMFLAGS += -DCONFIG_GPIO_AS_PINRESET
ASMFLAGS += -DFLOAT_ABI_HARD
ASMFLAGS += -DNRF52
ASMFLAGS += -DNRF52832_XXAA
ASMFLAGS += -DNRF52_PAN_74
ASMFLAGS += -DSWI_DISABLE0
# Linker flags
LDFLAGS += $(OPT)
LDFLAGS += -mthumb -mabi=aapcs -L $(TEMPLATE_PATH) -T$(LINKER_SCRIPT)
LDFLAGS += -mcpu=cortex-m4
LDFLAGS += -mfloat-abi=hard -mfpu=fpv4-sp-d16
# let linker dump unused sections
LDFLAGS += -Wl,--gc-sections
# use newlib in nano version
LDFLAGS += --specs=nano.specs
# Add standard libraries at the very end of the linker input, after all objects
# that may need symbols provided by these libraries.
LIB_FILES += -lc -lnosys -lm
.PHONY: default help
# Default target - first one defined
default: nrf52832_xxaa
# Print all targets that can be built
help:
@echo following targets are available:
@echo nrf52832_xxaa
@echo sdk_config - starting external tool for editing sdk_config.h
@echo flash - flashing binary
TEMPLATE_PATH := $(SDK_ROOT)/components/toolchain/gcc
include $(TEMPLATE_PATH)/Makefile.common
$(foreach target, $(TARGETS), $(call define_target, $(target)))
.PHONY: flash erase
# Flash the program
flash: $(OUTPUT_DIRECTORY)/nrf52832_xxaa.hex
@echo Flashing: $<
nrfjprog -f nrf52 --program $< --sectorerase
nrfjprog -f nrf52 --reset
erase:
nrfjprog -f nrf52 --eraseall