Initial reset controller firmware

controller/fw/Makefile

@@ -0,0 +1,93 @@
+
+SOURCES		:= main.c mspdebug_wrapper.c
+SOURCES		+= mspdebug/drivers/jtaglib.c
+
+BUILDDIR 	?= build
+BINARY 		:= safetyreset
+LDSCRIPT 	:= stm32f407.ld
+LIBNAME		:= opencm3_stm32f4
+
+OPENCM3_DIR 	?= libopencm3
+
+PREFIX		?= arm-none-eabi-
+
+
+CC		:= $(PREFIX)gcc
+CXX		:= $(PREFIX)g++
+LD		:= $(PREFIX)gcc
+AR		:= $(PREFIX)ar
+AS		:= $(PREFIX)as
+OBJCOPY		:= $(PREFIX)objcopy
+OBJDUMP		:= $(PREFIX)objdump
+GDB		:= $(PREFIX)gdb
+
+
+CFLAGS		+= -I$(OPENCM3_DIR)/include -Imspdebug/util -Imspdebug/drivers
+
+CFLAGS	+= -Os -std=c11 -g -DSTM32F4
+# Note: libopencm3 requires some standard libc definitions from stdint.h and stdbool.h, so we don't pass -nostdinc here.
+CFLAGS	+= -nostdlib -ffreestanding
+CFLAGS	+= -mthumb -mcpu=cortex-m4 -mfloat-abi=hard -mfpu=fpv4-sp-d16 -g
+CFLAGS	+= -Wextra -Wshadow -Wimplicit-function-declaration -Wundef
+CFLAGS	+= -Wredundant-decls -Wmissing-prototypes -Wstrict-prototypes
+CFLAGS	+= -fno-common -ffunction-sections -fdata-sections
+
+LDFLAGS		+= --static -nostartfiles
+LDFLAGS		+= -T$(LDSCRIPT)
+LDFLAGS		+= -mthumb -mcpu=cortex-m4 -mfloat-abi=hard -mfpu=fpv4-sp-d16 -g
+LDFLAGS		+= -Wl,--cre
+#LDFLAGS	+= -Wl,--gc-sections
+LDFLAGS		+= -Wl,--start-group -lc -lgcc -lnosys -Wl,--end-group
+LDFLAGS		+= -L$(OPENCM3_DIR)/lib
+LDFLAGS		+= -l$(LIBNAME) $(shell $(CC) -print-libgcc-file-name)
+
+all: elf
+
+elf: $(BUILDDIR)/$(BINARY).elf
+bin: $(BUILDDIR)/$(BINARY).bin
+hex: $(BUILDDIR)/$(BINARY).hex
+srec: $(BUILDDIR)/$(BINARY).srec
+list: $(BUILDDIR)/$(BINARY).list
+
+images: $(BUILDDIR)/$(BINARY).images
+
+$(OPENCM3_DIR)/lib/lib$(LIBNAME).a:
+	echo "Warning, $@ not found, attempting to rebuild in $(OPENCM3_DIR)"
+	$(MAKE) -C $(OPENCM3_DIR)
+
+OBJS := $(addprefix $(BUILDDIR)/,$(SOURCES:%.c=%.o))
+
+# Define a helper macro for debugging make errors online
+# you can type "make print-OPENCM3_DIR" and it will show you
+# how that ended up being resolved by all of the included
+# makefiles.
+print-%:
+	@echo $*=$($*)
+
+$(BUILDDIR)/%.images: $(BUILDDIR)/%.bin $(BUILDDIR)/%.hex $(BUILDDIR)/%.srec $(BUILDDIR)/%.list $(BUILDDIR)/%.map
+
+$(BUILDDIR)/%.bin: $(BUILDDIR)/%.elf
+	$(OBJCOPY) -Obinary $< $@
+
+$(BUILDDIR)/%.hex: $(BUILDDIR)/%.elf
+	$(OBJCOPY) -Oihex $< $@
+
+$(BUILDDIR)/%.srec: $(BUILDDIR)/%.elf
+	$(OBJCOPY) -Osrec $< $@
+
+$(BUILDDIR)/%.list: $(BUILDDIR)/%.elf
+	$(OBJDUMP) -S $< > $@
+
+$(BUILDDIR)/%.elf: $(OBJS) $(LDSCRIPT) $(OPENCM3_DIR)/lib/lib$(LIBNAME).a
+	$(LD) $(OBJS) $(LDFLAGS) -o $@ -Wl,-Map=$*.map 
+
+$(BUILDDIR)/%.o: %.c
+	mkdir -p $(dir $@)
+	$(CC) $(CFLAGS) -o $@ -c $<
+
+clean:
+	-rm -r $(BUILDDIR)
+
+.PHONY: images clean elf bin hex srec list
+
+-include $(OBJS:.o=.d)