# Copyright (c) 2016, James Jackson
# All rights reserved.
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions are met:
# 1. Redistributions of source code must retain the above copyright notice, this
# list of conditions and the following disclaimer.
# 2. Redistributions in binary form must reproduce the above copyright notice,
# this list of conditions and the following disclaimer in the documentation
# and/or other materials provided with the distribution.
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
# WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
# DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
# ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
# (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
# LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
# SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
TARGET ?= ledblink
SERIAL_DEVICE ?= /dev/ttyUSB0
#################################
# GNU ARM Embedded Toolchain
#################################
CC=arm-none-eabi-gcc
CXX=arm-none-eabi-g++
LD=arm-none-eabi-ld
AR=arm-none-eabi-ar
AS=arm-none-eabi-as
CP=arm-none-eabi-objcopy
OD=arm-none-eabi-objdump
NM=arm-none-eabi-nm
SIZE=arm-none-eabi-size
A2L=arm-none-eabi-addr2line
#################################
# Working directories
#################################
BREEZY_DIR = ../../../
ROOT = .
SRC_DIR = $(ROOT)
CMSIS_DIR = $(BREEZY_DIR)/lib/CMSIS
STDPERIPH_DIR = $(BREEZY_DIR)/lib/STM32F10x_StdPeriph_Driver
OBJECT_DIR = $(ROOT)/obj
BIN_DIR = $(ROOT)/obj
#################################
# Source Files
#################################
ASOURCES = $(BREEZY_DIR)/startup_stm32f10x_md_gcc.s
VPATH := $(SRC_DIR):$(SRC_DIR)/startups
# Search path and source files for the CMSIS sources
VPATH := $(VPATH):$(CMSIS_DIR)/CM3/CoreSupport:$(CMSIS_DIR)/CM3/DeviceSupport/ST/STM32F10x
CMSIS_SRC = $(notdir $(wildcard $(CMSIS_DIR)/CM3/CoreSupport/*.c \
$(CMSIS_DIR)/CM3/DeviceSupport/ST/STM32F10x/*.c))
# Search path and source files for the ST stdperiph library
VPATH := $(VPATH):$(STDPERIPH_DIR)/src
STDPERIPH_SRC = $(notdir $(wildcard $(STDPERIPH_DIR)/src/*.c))
CSOURCES = $(BREEZY_DIR)/drv_system_stm32f10x.c \
$(BREEZY_DIR)/drv_uart_stm32f10x.c \
$(BREEZY_DIR)/drv_gpio.c \
$(BREEZY_DIR)/drv_i2c.c \
$(BREEZY_DIR)/drv_adc.c \
$(BREEZY_DIR)/drv_spi.c \
$(BREEZY_DIR)/drv_pwm.c \
$(BREEZY_DIR)/drv_serial.c \
$(BREEZY_DIR)/drv_timer.c \
$(BREEZY_DIR)/printf.c \
$(CMSIS_SRC) \
$(STDPERIPH_SRC)
CXXSOURCES = $(ROOT)/ledblink.cpp \
$(BREEZY_DIR)/main.cpp \
INCLUDE_DIRS = $(SRC_DIR) \
$(BREEZY_DIR) \
$(STDPERIPH_DIR)/inc \
$(CMSIS_DIR)/CM3/CoreSupport \
$(CMSIS_DIR)/CM3/DeviceSupport/ST/STM32F10x
#################################
# Object List
#################################
OBJECTS=$(addsuffix .o,$(addprefix $(OBJECT_DIR)/$(TARGET),$(basename $(ASOURCES))))
OBJECTS+=$(addsuffix .o,$(addprefix $(OBJECT_DIR)/$(TARGET),$(basename $(CSOURCES))))
OBJECTS+=$(addsuffix .o,$(addprefix $(OBJECT_DIR)/$(TARGET),$(basename $(CXXSOURCES))))
#################################
# Target Output Files
#################################
TARGET_ELF=$(BIN_DIR)/$(TARGET).elf
TARGET_HEX=$(BIN_DIR)/$(TARGET).hex
#################################
# Flags
#################################
MCFLAGS=-mcpu=cortex-m3 -mthumb
OPTIMIZE = -Os
DEFS=-DTARGET_STM32F10X_MD -D__CORTEX_M4 -D__FPU_PRESENT -DWORDS_STACK_SIZE=200 -DSTM32F10X_MD -DUSE_STDPERIPH_DRIVER
CFLAGS=-c $(MCFLAGS) $(DEFS) $(OPTIMIZE) $(addprefix -I,$(INCLUDE_DIRS)) -std=c99
CXXFLAGS=-c $(MCFLAGS) $(DEFS) $(OPTIMIZE) $(addprefix -I,$(INCLUDE_DIRS)) -std=c++11
CXXFLAGS+=-U__STRICT_ANSI__
LDSCRIPT=$(BREEZY_DIR)/stm32_flash.ld
LDFLAGS =-T $(LDSCRIPT) $(MCFLAGS) -lm -nostartfiles -lc --specs=rdimon.specs $(ARCH_FLAGS) $(LTO_FLAGS) $(DEBUG_FLAGS) -static -Wl,-gc-sections
#################################
# Build
#################################
$(TARGET_HEX): $(TARGET_ELF)
$(CP) -O ihex --set-start 0x8000000 $< $@
$(TARGET_ELF): $(OBJECTS)
$(CXX) -o $@ $^ $(LDFLAGS)
$(SIZE) $(TARGET_ELF)
$(BIN_DIR)/$(TARGET)%.o: %.cpp
@mkdir -p $(dir $@)
@echo %% $(notdir $<)
@$(CXX) -c -o $@ $(CXXFLAGS) $<
$(BIN_DIR)/$(TARGET)%.o: %.c
@mkdir -p $(dir $@)
@echo %% $(notdir $<)
@$(CC) -c -o $@ $(CFLAGS) $<
$(BIN_DIR)/$(TARGET)%.o: %.s
@mkdir -p $(dir $@)
@echo %% $(notdir $<)
@$(CC) -c -o $@ $(CFLAGS) $<
#################################
# Recipes
#################################
.PHONY: all flash clean
clean:
rm -f $(OBJECTS) $(TARGET_ELF) $(TARGET_HEX) $(BIN_DIR)/output.map
flash: $(TARGET_HEX)
stty -F $(SERIAL_DEVICE) raw speed 921600 -crtscts cs8 -parenb -cstopb -ixon
stm32flash -w $(TARGET_HEX) -v -g 0x0 -b 921600 $(SERIAL_DEVICE)
all: $(TARGET_HEX)
