79 lines
1.9 KiB
Makefile
79 lines
1.9 KiB
Makefile
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# microcontroller and project specific settings
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TARGET = bootloader
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F_CPU = 20000000UL
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MCU = atmega644
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SRC = bootloader.c
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ASRC = usbdrv/usbdrvasm.S interrupts.S
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OBJECTS += $(patsubst %.c,%.o,${SRC})
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OBJECTS += $(patsubst %.S,%.o,${ASRC})
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HEADERS += $(shell echo *.h)
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# CFLAGS += -Werror
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LDFLAGS += -L/usr/local/avr/avr/lib
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CFLAGS += -Iusbdrv -I.
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CFLAGS += -DHARDWARE_REV=$(HARDWARE_REV)
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CDEFS += -DF_CPU
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ASFLAGS += -x assembler-with-cpp
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ASFLAGS += -Iusbdrv -I.
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# use own linkerscript, for special interrupt table handling
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LDFLAGS += -T ./ldscripts/avr5.x
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# no safe mode checks
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AVRDUDE_FLAGS += -u
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# set name for dependency-file
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MAKEFILE = Makefile
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# bootloader section start
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# (see datasheet)
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ifeq ($(MCU),atmega168)
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# atmega168 with 1024 words bootloader:
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# bootloader section starts at 0x1c00 (word-address) == 0x3800 (byte-address)
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BOOT_SECTION_START = 0x3800
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else ifeq ($(MCU),atmega88)
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# atmega88 with 1024 words bootloader:
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# bootloader section starts at 0xc00 (word-address) == 0x1800 (byte-address)
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BOOT_SECTION_START = 0x1800
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else ifeq ($(MCU),atmega644)
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# atmega644 with 2048 words bootloader:
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# bootloader section starts at 0x7800 (word-address) == 0xF000 (byte-address)
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BOOT_SECTION_START = 0xf000
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endif
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LDFLAGS += -Wl,--section-start=.text=$(BOOT_SECTION_START) -Wl,-u,vfprintf
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CFLAGS += -DBOOT_SECTION_START=$(BOOT_SECTION_START)
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include avr.mk
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.PHONY: all
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all: $(TARGET).hex $(TARGET).lss
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@echo "==============================="
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@echo "$(TARGET) compiled for: $(MCU)"
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@echo -n "size is: "
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@$(SIZE) -A $(TARGET).hex | grep "\.sec1" | tr -s " " | cut -d" " -f2
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@echo "==============================="
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$(TARGET): $(OBJECTS) $(TARGET).o
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%.o: $(HEADERS)
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.PHONY: clean clean-$(TARGET)
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clean: clean-$(TARGET)
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clean-$(TARGET):
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$(RM) $(TARGET) $(OBJECTS)
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.PHONY: depend test
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depend:
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$(CC) $(CFLAGS) -M $(CDEFS) $(CINCS) $(SRC) >> $(MAKEFILE).dep
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-include $(MAKEFILE).dep
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