Cleaned up folders.

Makefile

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+#2015 by tmoe, id10101 (and the internet :) )
+
+#Name of the binary/project
+TARGET=hello
+
+#Tools
+CROSS_COMPILE=arm-none-eabi-
+CC=$(CROSS_COMPILE)gcc
+OBJCOPY=$(CROSS_COMPILE)objcopy
+GDB=$(CROSS_COMPILE)gdb
+
+MKDIR=mkdir -p
+RM=rm -f
+RMDIR=rm -rf
+STUTIL=utils/st-util-daemon.sh
+STFLASH=st-flash
+BACKUPNAME=$(shell date +'%y.%m.%d')_BACKUP
+
+#Directories
+SRC_DIR=./src
+OBJ_DIR=./obj
+BUILD_DIR=./build
+LIB_DIR=./libs
+
+#Architecture flags
+FP_FLAGS?=-mfpu=fpv4-sp-d16 -mfloat-abi=softfp
+ARCH_FLAGS=-mthumb -mcpu=cortex-m4 $(FP_FLAGS)
+
+#Compiler, Linker Options
+CPPFLAGS=-I$(LIB_DIR)/StmCoreNPheriph/inc
+CFLAGS=$(ARCH_FLAGS) -O0 -g
+
+LDFLAGS=--specs=nosys.specs
+
+#Finding Input files
+CFILES=$(shell find $(SRC_DIR) -name '*.c')
+SFILES=$(SRC_DIR)/startup.s
+
+#Generate corresponding obj names
+SOBJS=$(SFILES:.s=.o)
+COBJS=$(CFILES:.c=.o)
+OBJS=$(patsubst $(SRC_DIR)/%,$(OBJ_DIR)/%,$(SOBJS) $(COBJS))
+
+#Keep the objects files
+.SECONDARY: $(OBJS)
+
+#Mark targets which are not "file-targets"
+.PHONY: all debug flash start stop backup clean
+
+# List of all binaries to build
+all: $(BUILD_DIR)/$(TARGET).elf $(BUILD_DIR)/$(TARGET).bin
+
+start:
+	$(STUTIL) start
+
+stop:
+	$(STUTIL) stop
+
+#objects to elf
+%.elf : $(OBJS)
+	@echo Linking...
+	$(MKDIR) $(BUILD_DIR)
+	$(CC) -o $@ $(CFLAGS) $(CPPFLAGS) $(LDFLAGS) -T./utils/stm32_flash.ld $^
+
+#elf to binary
+%.bin: %.elf
+	$(OBJCOPY) -O binary $< $@
+
+#Asm files to objects
+$(OBJ_DIR)/%.o: $(SRC_DIR)/%.s
+	@echo Assembling $<...
+	$(MKDIR) $(OBJ_DIR)
+	$(CC) -x assembler-with-cpp $(CFLAGS) $(CPPFLAGS) -c $< -o $@
+
+#C files to objects
+$(OBJ_DIR)/%.o: $(SRC_DIR)/%.c
+	@echo Compiling $<...
+	$(MKDIR) $(OBJ_DIR)
+	$(CC) $(CFLAGS) $(CPPFLAGS) -c -o $@ $<
+
+#Clean Obj files and builded stuff
+clean:
+	$(RMDIR) $(BUILD_DIR) $(OBJ_DIR)
+
+#Debug target: starts the st-util server and gdb and leaves it open
+debug: start all
+	$(GDB) $(BUILD_DIR)/$(TARGET).elf -x ./utils/gdb.script
+
+#Flash target: starts the st-util server flashes the elf with gdb and exits afterwards
+flash: start all
+	$(GDB) $(BUILD_DIR)/$(TARGET).elf -x ./utils/gdb.script -batch
+
+backup: stop 
+	$(STFLASH) read $(BACKUPNAME).bin 0x8000000 0x100000