# default target: all

.PHONY: all

all: b m

# apps & platforms

TEST_APPS = hello_world rtc_test imu_stream_test imu_wom_test ble_test

APPS = bootloader morpheus pill $(TEST_APPS)

S110_PLATFORMS = band_EVT3 pca10001 pca10000

S310_PLATFORMS = pca10003 morpheus_EVT1 morpheus_EVT2 pill_EVT1 pill_EVT2

PLATFORMS = $(S110_PLATFORMS) $(S310_PLATFORMS)

# product aliases

.PHONY: b

b: band+band_EVT3 bootloader+band_EVT3

.PHONY: m

m: morpheus+EK bootloader+EK

# program targets

.PHONY: pb

pb: p-band+band_EVT3

.PHONY: pbb

pbb: p-band+bootloader+band_EVT3

.PHONY: pbl

pbl: p-bootloader+band_EVT3

.PHONY: pm

pm: p-morpheus+EK

# debug targets

.PHONY: gb

gb: g-band+band_EVT3

.PHONY: gbl

gbl: g-bootloader+band_EVT3

# tool paths



DEFAULT_GCC_ROOT = $(CURDIR)/tools/gcc-arm-none-eabi-4_7-2013q3

KODOBANNIN_GCC_ROOT ?= $(DEFAULT_GCC_ROOT)

DEFAULT_JLINK_ROOT = $(CURDIR)/tools/JLink_MacOSX_V474

KODOBANNIN_JLINK_ROOT ?= $(DEFAULT_JLINK_ROOT)

PREFIX=arm-none-eabi-

BIN = $(KODOBANNIN_GCC_ROOT)/bin

CC = $(BIN)/$(PREFIX)gcc

LD = $(BIN)/$(PREFIX)ld

AS = $(BIN)/$(PREFIX)as

OBJCOPY = $(BIN)/$(PREFIX)objcopy

JPROG=$(KODOBANNIN_JLINK_ROOT)/JLinkExe.command

JGDBServer=$(KODOBANNIN_JLINK_ROOT)/JLinkGDBServer.command

# J-Link

JLINK_OPTIONS = -device nrf51822 -if swd -speed 4000

.PHONY: jl

jl:

@$(JPROG) $(JLINK_OPTIONS)

# file paths



BUILD_DIR = build

HELLO_SRCS = \

$(wildcard common/*.c) \

$(wildcard common/*.s) \

$(wildcard protobuf/*.c) \

NRF_SRCS = \

nRF51_SDK/nrf51822/Source/templates/system_nrf51.c \

nRF51_SDK/nrf51822/Source/app_common/app_timer.c \

nRF51_SDK/nrf51822/Source/app_common/app_fifo.c \

nRF51_SDK/nrf51822/Source/app_common/app_uart_fifo.c \

nRF51_SDK/nrf51822/Source/app_common/crc16.c \

nRF51_SDK/nrf51822/Source/app_common/hci_mem_pool.c \

nRF51_SDK/nrf51822/Source/ble/ble_advdata.c \

nRF51_SDK/nrf51822/Source/ble/ble_conn_params.c \

nRF51_SDK/nrf51822/Source/ble/ble_flash.c \

nRF51_SDK/nrf51822/Source/ble/ble_radio_notification.c \

nRF51_SDK/nrf51822/Source/ble/ble_services/ble_srv_common.c \

nRF51_SDK/nrf51822/Source/ble/ble_services/ble_dis.c \

nRF51_SDK/nrf51822/Source/ble/ble_services/ble_bas.c \

nRF51_SDK/nrf51822/Source/nrf_delay/nrf_delay.c \

nRF51_SDK/nrf51822/Source/app_common/app_scheduler.c \

nRF51_SDK/nrf51822/Source/app_common/app_gpiote.c \

nRF51_SDK/nrf51822/Source/app_common/pstorage.c \

nRF51_SDK/nrf51822/Source/nrf_nvmc/nrf_nvmc.c \

nRF51_SDK/nrf51822/Source/sd_common/softdevice_handler.c \

nRF51_SDK/nrf51822/Source/spi_slave/spi_slave.c \

nRF51_SDK/nrf51822/Source/ble/ble_bondmngr.c \

DRIVER_SRCS = \

$(wildcard drivers/imu.c) \

$(wildcard drivers/battery.c) \

$(wildcard drivers/gpio_nor.c) \

$(wildcard drivers/pwm.c) \

SRCS = $(HELLO_SRCS) $(NRF_SRCS) $(DRIVER_SRCS)

INCS = ./ \

./nRF51_SDK/nrf51822/Include \

./nRF51_SDK/nrf51822/Include/sd_common/ \

./nRF51_SDK/nrf51822/Include/s110/ \

./nRF51_SDK/nrf51822/Include/ble \

./nRF51_SDK/nrf51822/Include/ble/ble_services/ \

./nRF51_SDK/nrf51822/Include/app_common \

./nRF51_SDK/nrf51822/Include/gcc \

./protobuf \

./common \

./drivers \



# SoftDevice

SOFTDEVICE_SRC = SoftDevice/s110_nrf51822_6.0.0_softdevice.hex

SOFTDEVICE_MAIN = $(BUILD_DIR)/$(basename $(notdir $(SOFTDEVICE_SRC)))_main.bin

SOFTDEVICE_UICR = $(BUILD_DIR)/$(basename $(notdir $(SOFTDEVICE_SRC)))_uicr.bin

SOFTDEVICE_BINARIES = $(SOFTDEVICE_MAIN) $(SOFTDEVICE_UICR)

.PHONY: SoftDevice

SoftDevice: $(SOFTDEVICE_BINARIES)

$(SOFTDEVICE_BINARIES):: $(BUILD_DIR)

$(SOFTDEVICE_BINARIES):: | $(CC)

$(SOFTDEVICE_MAIN):: $(SOFTDEVICE_SRC)

$(OBJCOPY) -I ihex -O binary --remove-section .sec3 $< $@

$(SOFTDEVICE_UICR):: $(SOFTDEVICE_SRC)

$(OBJCOPY) -I ihex -O binary --only-section .sec3 $< $@



# SHA-1

%.sha1: %.bin

openssl sha1 -binary $< > $@

stat -f "%Xz" $< | xxd -r -p | dd conv=swab 2> /dev/null >> $@

%.crc: %.bin $(CURDIR)/tools/crc16

$(CURDIR)/tools/crc16 $< | xxd -r -p | dd conv=swab 2> /dev/null > $@

echo ff ff ff ff | xxd -r -p >> $@

stat -f "%Xz" $< | xxd -r -p | dd conv=swab 2> /dev/null >> $@

echo 00 00 | xxd -r -p >> $@



# gdb support

JGDBServer=$(KODOBANNIN_JLINK_ROOT)/JLinkGDBServer.command

.PHONY: gdbs

gdbs:

$(JGDBServer) $(JLINK_OPTIONS)

# clean

.PHONY: clean

clean:

-rm -rf $(BUILD_DIR)



# git description

GIT_DESCRIPTION = $(shell git describe --all --long --dirty)

GIT_DESCRIPTION_C_CONTENTS = const char* const GIT_DESCRIPTION = "$(GIT_DESCRIPTION)";

ifneq ($(GIT_DESCRIPTION_C_CONTENTS), $(shell cat $(BUILD_DIR)/git_description.c 2> /dev/null))

.PHONY: git_description.c

endif

$(BUILD_DIR)/git_description.c:

@mkdir -p $(dir $@)

@echo '$(GIT_DESCRIPTION_C_CONTENTS)' > $@

$(BUILD_DIR)/git_description.o: $(BUILD_DIR)/git_description.c | $(CC)

$(CC) $(CFLAGS) -c -o $@ $<



# compile flags

DEBUG = 0

ifeq ($(DEBUG), 1)

OPTFLAGS=-O0 -g -DDEBUG_SERIAL=2 -DuECC_ASM=0 # 1 (TxD) alone and 2 (TxD|RxD) both

SRCS += nRF51_SDK/nrf51822/Source/simple_uart/simple_uart.c

else

OPTFLAGS=-Os -g -DuECC_ASM=2

endif

NRFREV=NRF51822_QFAA_ED

NRFFLAGS=-DBOARD_PCA10001 -DNRF51 -DDO_NOT_USE_DEPRECATED -D$(NRFREV) -DBLE_STACK_SUPPORT_REQD -DS110_STACK

MICROECCFLAGS=-DECC_CURVE=6 # see ecc.h for details

ARCHFLAGS=-mcpu=cortex-m0 -mthumb -march=armv6-m

LDFLAGS := `$(CC) $(ARCHFLAGS) -print-libgcc-file-name` --gc-sections -Lstartup -Map=build/build.map

WARNFLAGS=-Wall -Wno-packed-bitfield-compat -Wno-format

ASFLAGS := $(ARCHFLAGS)

CFLAGS := -std=gnu99 -fdata-sections -ffunction-sections $(ARCHFLAGS) $(MICROECCFLAGS) $(NRFFLAGS) $(OPTFLAGS) $(WARNFLAGS)



# functions

## returns the build directory for a product

product-dir = $(BUILD_DIR)/$1+$2

# functions for source files, without a build/ prefix. $1 = app

app-srcs = $(SRCS) $(wildcard $1/*.c)

platform-srcs = $(SRCS) $(wildcard $1/*.c)

product-incs-flags = $(addprefix -I,$1 $2 $(INCS))

# functions for object files, with a build/ prefix. $1 = app, $2 = platform

define rule-product-objs

$(foreach src, $(call app-srcs,$1) $(call platform-srcs,$2), $(eval $(call rule-product-obj )))

endef

product-objs = $(patsubst %.c,%.o,$(patsubst %.s,%.o,$(addprefix $(call product-dir,$1,$2)/, $(call app-srcs,$1) $(call platform-srcs,$2))))

## creates a rule for a product. $1 = app, $2 = platform

define rule-product

.PHONY: $1+$2

$1+$2: $(BUILD_DIR)/$1+$2.bin

$(BUILD_DIR)/$1+$2.bin: $(BUILD_DIR)/$1+$2.elf

$(OBJCOPY) -O binary $$< $$@

$(BUILD_DIR)/$1+$2/%.o: %.c | $(CC)

@mkdir -p $$(dir $$@)

$(CC) $(CFLAGS) $(call product-incs-flags,$1,$2) -MMD -c -o $$@ $$<

$(BUILD_DIR)/$1+$2/%.o: %.s | $(CC)

@mkdir -p $$(dir $$@)

$(AS) $(ASFLAGS) -o $$@ $$<

$1+$2_OBJS = $(call product-objs,$1,$2)

$1+$2_DEPS = $$($1+$2_OBJS:.o=.d)

-include $$($1+$2_DEPS)

$(BUILD_DIR)/$1+$2.elf: $(BUILD_DIR)/git_description.o $$($1+$2_OBJS)

$(BUILD_DIR)/$1+$2.elf: startup/$1.ld startup/common.ld startup/memory.ld | $(dir $@) $(CC)

$(LD) $(LDFLAGS) -o $$@ $$(filter %.o, $$^) -Tstartup/$1.ld $(LDFLAGS)

$(BUILD_DIR)/$1+$2/$1 $(BUILD_DIR)/$1+$2/$2 $(BUILD_DIR)/$1+$2:

mkdir -p $(call product-dir,$1,$2)

$(BUILD_DIR)/$1+bootloader+$2.jlink: prog/$1+bootloader+$2.jlink.in

@mkdir -p $$(dir $$@)

sed \

-e 's,$$$$PWD,$(CURDIR),g' \

-e 's,$$$$BUILD_DIR,$$(abspath $(BUILD_DIR)),g' \

-e 's,$$$$SOFTDEVICE_MAIN,$$(abspath $(SOFTDEVICE_MAIN)),g' \

-e 's,$$$$SOFTDEVICE_UICR,$$(abspath $(SOFTDEVICE_UICR)),g' \

-e 's,$$$$BIN,$$(abspath $(BUILD_DIR)/$1+$2.bin),g' \

-e 's,$$$$1,$1,g' \

-e 's,$$$$2,$2,g' \

< $$< > $$@

$(BUILD_DIR)/$1+$2.jlink: prog/$1+$2.jlink.in

@mkdir -p $$(dir $$@)

sed \

-e 's,$$$$PWD,$(CURDIR),g' \

-e 's,$$$$BUILD_DIR,$$(abspath $(BUILD_DIR)),g' \

-e 's,$$$$SOFTDEVICE_MAIN,$$(abspath $(SOFTDEVICE_MAIN)),g' \

-e 's,$$$$SOFTDEVICE_UICR,$$(abspath $(SOFTDEVICE_UICR)),g' \

-e 's,$$$$BIN,$$(abspath $(BUILD_DIR)/$1+$2.bin),g' \

-e 's,$$$$1,$1,g' \

-e 's,$$$$2,$2,g' \

< $$< > $$@

.PHONY: p-$1+$2 p-$1+bootloader+$2

p-$1+$2 p-$1+bootloader+$2: $(BUILD_DIR)/$1+$2.bin $(SOFTDEVICE_BINARIES)

p-$1+$2: $(BUILD_DIR)/$1+$2.jlink

@$(JPROG) $(JLINK_OPTIONS) < $$<

p-$1+bootloader+$2: $(BUILD_DIR)/$1+bootloader+$2.jlink $(BUILD_DIR)/bootloader+$2.bin $(BUILD_DIR)/$1+$2.sha1 $(BUILD_DIR)/$1+$2.crc

@$(JPROG) $(JLINK_OPTIONS) < $$<

.PHONY: g-$1+$2

g-$1+$2:

$(BIN)/arm-none-eabi-gdb $(BUILD_DIR)/$1+$2.elf

endef



# tools

tools/crc16: tools/crc16.c

gcc \

-I./nRF51_SDK/nrf51822/Include/app_common \

-o $@ \

nRF51_SDK/nrf51822/Source/app_common/crc16.c $^



# auto-generate product rules

$(foreach platform, $(PLATFORMS),$(foreach app, $(APPS), $(eval $(call rule-product,$(app),$(platform)))))

# downloading required dependencies (GCC, J-Link)

GCC_PACKAGE_BASENAME = gcc-arm-none-eabi-4_7-2013q3-20130916-mac.tar.bz2

GCC_PACKAGE_URL = https://launchpadlibrarian.net/151487551/$(GCC_PACKAGE_BASENAME)

.INTERMEDIATE: $(CURDIR)/tools/$(GCC_PACKAGE_BASENAME)

$(CURDIR)/tools/$(GCC_PACKAGE_BASENAME):

$(info [DOWNLOADING GCC...])

@(cd $(CURDIR)/tools && curl -O $(GCC_PACKAGE_URL))

$(DEFAULT_GCC_ROOT)/bin/$(PREFIX)gcc: | $(CURDIR)/tools/$(GCC_PACKAGE_BASENAME)

$(info [UNTARRING GCC...])

@(cd $(CURDIR)/tools && tar jxf gcc-arm-none-eabi-4_7-2013q3-20130916-mac.tar.bz2)

# submodule inits

GIT_SUBMODULE_DEPENDENCY_FILES = $(SOFTDEVICE_SRC) micro-ecc/README.md nRF51822/Documentation/index.html $(CURDIR)/tools/JLink_MacOSX_V474/JLinkExe.command

$(GIT_SUBMODULE_DEPENDENCY_FILES):

$(info [GIT SUBMODULE UPDATE])

@git submodule init

@git submodule update



# understanding this:

# * objects are part of the _product_

# * for a new platform: .ld file in startup/, prog file in .

# coding style:

# * function names should be lowercase, with dashes separating words

# * variable names use UPPERCASE

# * function names are lowercase