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71 lines
2.5 KiB
Makefile
71 lines
2.5 KiB
Makefile
#------------------------------------------------------------------
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# Makefile for stand-alone MMC boot strap loader
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#------------------------------------------------------------------
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# Change these defs for the target device
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MCU_TARGET = atmega1284p # Target device to be used (32K or larger)
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BOOT_ADR = 0x1F000 # Boot loader start address [byte] NOT [word] as in http://eleccelerator.com/fusecalc/fusecalc.php?chip=atmega1284p
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F_CPU = 16000000 # CPU clock frequency [Hz] NOT critical: it just should be higher than the actual Hz
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SD_CS_PORT = PORTB # Data Register of the SD CS pin
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SD_CS_DDR = DDRB # Data Direction Register of the SD CS pin
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SD_CS_BIT = 0 # Bit of the SD CS pin
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USE_LED = 1 # Debug with two (defined in asmfunc.S)
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USE_UART = 0 # Debug on Serial. 0 ... deactivate or divider of http://wormfood.net/avrbaudcalc.php for baud rate!
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#------------------------------------------------------------------
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ifeq ($(strip $(USE_UART)),0)
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CSRC = main.c pff/src/pff.c diskio.c
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else
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CSRC = main.c pff/src/pff.c diskio.c uart/uart.c
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endif
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TARGET = avr_boot
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ASRC = asmfunc.S
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OPTIMIZE = -Os -mcall-prologues -ffunction-sections -fdata-sections
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DEFS = -DBOOT_ADR=$(BOOT_ADR) -DF_CPU=$(F_CPU) -DUSE_LED=$(USE_LED) -DUSE_UART=$(USE_UART) -DSD_CS_PORT=$(SD_CS_PORT) -DSD_CS_DDR=$(SD_CS_DDR) -DSD_CS_BIT=$(SD_CS_BIT)
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LIBS =
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DEBUG = dwarf-2
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ASFLAGS = -Wa,-adhlns=$(<:.S=.lst),-gstabs $(DEFS)
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ALL_ASFLAGS = -mmcu=$(MCU_TARGET) -I. -x assembler-with-cpp $(ASFLAGS)
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CFLAGS = -g$(DEBUG) -Wall $(OPTIMIZE) $(ADDED_CFLAGS) -mmcu=$(MCU_TARGET) -std=c99 $(DEFS)
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LDFLAGS = -Wl,-Map,$(TARGET).map -Wl,--gc-sections -Wl,--section-start,.text=$(BOOT_ADR)
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OBJ = $(CSRC:.c=.o) $(ASRC:.S=.o)
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CC = avr-gcc
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OBJCOPY = avr-objcopy
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OBJDUMP = avr-objdump
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SIZE = avr-size
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all: clean $(TARGET).elf lst text bin size
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$(TARGET).elf: $(OBJ)
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$(CC) $(CFLAGS) $(LDFLAGS) -o $@ $^ $(LIBS)
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clean:
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rm -rf *.o $(TARGET).elf *.eps *.bak *.a *.bin
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rm -rf pff/src/*.o uart/*.o
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rm -rf *.lst *.map $(EXTRA_CLEAN_FILES)
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rm -rf $(TARGET).hex
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size: $(TARGET).elf
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$(SIZE) -C --mcu=$(MCU_TARGET) $(TARGET).elf
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lst: $(TARGET).lst
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%.lst: %.elf
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$(OBJDUMP) -h -S $< > $@
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%.o : %.S
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$(CC) -c $(ALL_ASFLAGS) $< -o $@
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text: $(TARGET).hex
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%.hex: %.elf
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$(OBJCOPY) -j .text -j .data -j .fuse -O ihex $< $@
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# --- make bin just to check size :)
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bin: $(TARGET).bin
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%.bin: %.hex
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$(OBJCOPY) -I ihex -O binary $< $@
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print-% : ; @echo $* = $($*) #test any var with make print-XXX
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