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# Makefile for ATmegaBOOT
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# E.Lins, 18.7.2005
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# $Id$
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# Instructions
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#
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# To build the bootloader for the LilyPad:
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# make lily
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# program name should not be changed...
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PROGRAM    = ATmegaBOOT_168
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# enter the target CPU frequency
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AVR_FREQ   = 8000000L
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# enter the parameters for the avrdude isp tool
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ISPTOOL	   = stk500v2
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ISPPORT	   = usb
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ISPSPEED   = -b 115200
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MCU_TARGET = atmega168
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LDSECTION  = --section-start=.text=0x3800
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# the efuse should really be 0xf8; since, however, only the lower
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# three bits of that byte are used on the atmega168, avrdude gets
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# confused if you specify 1's for the higher bits, see:
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# http://tinker.it/now/2007/02/24/the-tale-of-avrdude-atmega168-and-extended-bits-fuses/
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#
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# similarly, the lock bits should be 0xff instead of 0x3f (to
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# unlock the bootloader section) and 0xcf instead of 0x0f (to
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# lock it), but since the high two bits of the lock byte are
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# unused, avrdude would get confused.
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ISPFUSES    = avrdude -c $(ISPTOOL) -p m168 -P $(ISPPORT) $(ISPSPEED) -e -u -U lock:w:0x3f:m -U efuse:w:0x00:m -U hfuse:w:0xdd:m -U lfuse:w:0xff:m
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ISPFLASH    = avrdude -c $(ISPTOOL) -p m168 -P $(ISPPORT) $(ISPSPEED) -U flash:w:$(PROGRAM)_$(TARGET).hex -U lock:w:0x0f:m
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OBJ        = $(PROGRAM).o
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OPTIMIZE   = -O2
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DEFS       = 
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LIBS       =
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CC         = avr-gcc
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# Override is only needed by avr-lib build system.
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override CFLAGS        = -g -Wall $(OPTIMIZE) -mmcu=$(MCU_TARGET) -DF_CPU=$(AVR_FREQ) $(DEFS)
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override LDFLAGS       = -Wl,$(LDSECTION)
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#override LDFLAGS       = -Wl,-Map,$(PROGRAM).map,$(LDSECTION)
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OBJCOPY        = avr-objcopy
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OBJDUMP        = avr-objdump
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all:
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lily: CFLAGS += '-DMAX_TIME_COUNT=F_CPU>>1' '-DNUM_LED_FLASHES=3'
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lily: $(PROGRAM).hex
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$(PROGRAM).hex: $(PROGRAM).elf
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	$(OBJCOPY) -j .text -j .data -O ihex $< $@
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$(PROGRAM).elf: $(OBJ)
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	$(CC) $(CFLAGS) $(LDFLAGS) -o $@ $^ $(LIBS)
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$(OBJ): 
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	avr-gcc $(CFLAGS) $(LDFLAGS) -c -g -O2 -Wall -mmcu=atmega168 ATmegaBOOT.c -o ATmegaBOOT_168.o
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%.lst: %.elf
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	$(OBJDUMP) -h -S $< > $@
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%.srec: %.elf
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	$(OBJCOPY) -j .text -j .data -O srec $< $@
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%.bin: %.elf
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	$(OBJCOPY) -j .text -j .data -O binary $< $@
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clean:
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	rm -rf *.o *.elf *.lst *.map *.sym *.lss *.eep *.srec *.bin *.hex
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install:
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	avrdude -p m168 -c stk500v2 -P /dev/cu.USA19H1b1P1.1 -e -u -U lock:w:0x3f:m -U efuse:w:0x00:m -U hfuse:w:0xdd:m -U lfuse:w:0xe2:m 
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	avrdude -p m168 -c stk500v2 -P /dev/cu.USA19H1b1P1.1 -e -u -U flash:w:ATmegaBOOT_168.hex  -U lock:w:0x0f:m