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# WinAVR Sample makefile written by Eric B. Weddington, Jörg Wunsch, et al.
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# Released to the Public Domain
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# Please read the make user manual!
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#
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# Retrofitted for the AVRcam project by John Orlando  6/30/2004
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#
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#
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# On command line:
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#
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# make all = Make software.
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#
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# make clean = Clean out built project files.
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#
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# make coff = Convert ELF to AVR COFF (for use with AVR Studio 3.x or VMLAB).
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#
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# make extcoff = Convert ELF to AVR Extended COFF (for use with AVR Studio
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#                4.07 or greater).
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#
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# make program = Download the hex file to the device, using avrdude.  Please
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#                customize the avrdude settings below first!
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#
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# make filename.s = Just compile filename.c into the assembler code only
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#
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# To rebuild project do "make clean" then "make all".
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#
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#    Revision History:
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#    Date        Rel Ver.    Notes
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#    4/10/2004      0.1     Module created
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#    6/30/2004      1.0     Initial release for Circuit Cellar
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#                           contest.
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#    1/15/2005      1.4     Removed the UartInterfaceAsm file from 
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#                           file list, since the routine in that
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#                           file was added to UartInterface.c.
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# MCU name
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MCU = atmega8
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# Output format. (can be srec, ihex, binary)
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FORMAT = ihex
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# Target file name (without extension).
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TARGET = AVRcam
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# Optimization level, can be [0, 1, 2, 3, s]. 0 turns off optimization.
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# (Note 3 is not always the best optimization level. See avr-libc FAQ.)
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OPT = 1
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# List C source files here. (C dependencies are automatically generated.)
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#SRC = $(TARGET).c
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# If there is more than one source file, append them above, or adjust and
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# uncomment the following:
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# NOTE: The order of the files here is important...CamInterface.c MUST be
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# the first file, due to the declaration of an array that needs to be 
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# located at the very beginning of the .noinit section in on-board RAM.
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SRC = CamInterface.c Main.c Executive.c FrameMgr.c UIMgr.c UartInterface.c I2CInterface.c CamConfig.c Utility.c DebugInterface.c
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# List Assembler source files here.
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# Make them always end in a capital .S.  Files ending in a lowercase .s
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# will not be considered source files but generated files (assembler
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# output from the compiler), and will be deleted upon "make clean"!
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# Even though the DOS/Win* filesystem matches both .s and .S the same,
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# it will preserve the spelling of the filenames, and gcc itself does
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# care about how the name is spelled on its command-line.
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ASRC = CamInterfaceAsm.S
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# Optional compiler flags.
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#  -g:        generate debugging information (for GDB, or for COFF conversion)
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#  -O*:       optimization level
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#  -f...:     tuning, see gcc manual and avr-libc documentation
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#  -Wall...:  warning level
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#  -Wa,...:   tell GCC to pass this to the assembler.
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#    -ahlms:  create assembler listing
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CFLAGS = -g -O$(OPT) \
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	-funsigned-char -funsigned-bitfields -fpack-struct -fshort-enums \
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	-Wall -Wstrict-prototypes \
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	-Wa,-ahlms=$(<:.c=.lst) 
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# Optional assembler flags.
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#  -Wa,...:   tell GCC to pass this to the assembler.
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#  -ahlms:    create listing
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#  -gstabs:   have the assembler create line number information; note that
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#             for use in COFF files, additional information about filenames
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#             and function names needs to be present in the assembler source
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#             files -- see avr-libc docs [FIXME: not yet described there]
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ASFLAGS = -Wa,-ahlms=$(<:.S=.lst),-gstabs
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# Optional linker flags.
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#  -Wl,...:   tell GCC to pass this to linker.
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#  -Map:      create map file
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#  --cref:    add cross reference to  map file
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LDFLAGS = -Wl,-Map=$(TARGET).map,--cref,--section-start=.noinit=0x800300
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#LDFLAGS = -Wl,-Map=$(TARGET).map,--cref,--section-start=.john=0x800200
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# Additional libraries
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#
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# Minimalistic printf version
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#LDFLAGS += -Wl,-u,vfprintf -lprintf_min
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#
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# Floating point printf version (requires -lm below)
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#LDFLAGS +=  -Wl,-u,vfprintf -lprintf_flt
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#
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# -lm = math library
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LDFLAGS += -lm
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PROGRAMMER_DEVICE = dapa
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PORT = /dev/parport0			# programmer connected to parallel port
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# Programming support using avrdude. Settings and variables.
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# Programming hardware: avrisp stk500 avr910 pavr stk200 pony-stk200
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#                       dt006 bascom alf
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# Type: avrdude -c ?
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# to get a full listing.
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#
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# Uncomment the following if you want avrdude's erase cycle counter.
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# Note that this counter needs to be initialized first using -Yn,
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# see avrdude manual.
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#AVRDUDE_ERASE += -y
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#
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# Uncomment the following if you do /not/ wish a verification to be
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# performed after programming the device.
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#AVRDUDE_FLAGS += -V
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#
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# Increase verbosity level.  Please use this when submitting bug
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# reports about avrdude. See <http://savannah.nongnu.org/projects/avrdude>
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# to submit bug reports.
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#AVRDUDE_FLAGS += -v -v
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# ---------------------------------------------------------------------------
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# Define directories, if needed.
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DIRAVR = c:/winavr
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DIRAVRBIN = $(DIRAVR)/bin
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DIRAVRUTILS = $(DIRAVR)/utils/bin
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DIRINC = .
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DIRLIB = $(DIRAVR)/avr/lib
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# Define programs and commands.
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SHELL = sh
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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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# Programming support using avrdude.
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#PROGRAMMER = avrdude
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# Programming support using uisp.
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PROGRAMMER = uisp
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REMOVE = rm -f
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COPY = cp
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HEXSIZE = $(SIZE) --target=$(FORMAT) $(TARGET).hex
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ELFSIZE = $(SIZE) -A $(TARGET).elf
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FINISH = echo Errors: none
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BEGIN = echo -------- begin --------
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END = echo --------  end  --------
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# Define all object files.
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OBJ = $(SRC:.c=.o) $(ASRC:.S=.o)
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# Define all listing files.
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LST = $(ASRC:.S=.lst) $(SRC:.c=.lst)
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# Combine all necessary flags and optional flags.
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# Add target processor to flags.
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ALL_CFLAGS = -mmcu=$(MCU) -I. $(CFLAGS)
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ALL_ASFLAGS = -mmcu=$(MCU) -I. -x assembler-with-cpp $(ASFLAGS)
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# Default target.
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all: begin gccversion sizebefore $(TARGET).elf $(TARGET).hex $(TARGET).eep \
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	$(TARGET).lss coff sizeafter finished end
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# Eye candy.
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# AVR Studio 3.x does not check make's exit code but relies on
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# the following magic strings to be generated by the compile job.
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begin:
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	@$(BEGIN)
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finished:
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	@$(FINISH)
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end:
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	@$(END)
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# Display size of file.
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sizebefore:
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	@if [ -f $(TARGET).elf ]; then echo Size before:; $(ELFSIZE);fi
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sizeafter:
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	@if [ -f $(TARGET).elf ]; then echo Size after:; $(ELFSIZE);fi
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# Display compiler version information.
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gccversion :
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	$(CC) --version
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# Convert ELF to COFF for use in debugging / simulating in
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# AVR Studio or VMLAB.
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COFFCONVERT=$(OBJCOPY) --debugging \
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	--change-section-address .data-0x800000 \
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	--change-section-address .bss-0x800000 \
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	--change-section-address .noinit-0x800000 \
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	--change-section-address .eeprom-0x810000
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coff: $(TARGET).elf
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	$(COFFCONVERT) -O coff-avr $< $(TARGET).cof
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extcoff: $(TARGET).elf
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	$(COFFCONVERT) -O coff-ext-avr $< $(TARGET).cof
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# Program the device.  The magic trickery below examines the .eep hex
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# file whether the size is > 0, and if so, reprograms the EEPROM as
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# well.  Just delete these lines if you don't want this feature (like
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# on the ATmegas with the EESAVE fuse bit set).
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program: $(TARGET).hex $(TARGET).eep
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#	if[ "$(PROGRAMMER)" == "avrdude"]; then \
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#	  avrdude -p $(MCU) -P $(PORT) -c $(PROGRAMMER_DEVICE) -e # erase AVR device
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#	  avrdude -p $(MCU) -P $(PORT) -c $(PROGRAMMER_DEVICE) -i $(TARGET).hex # program AVR device
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#	fi; \
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#	@$(SIZE) --target=$(FORMAT) $(TARGET).eep | while read line; \
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#	do \
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#		set -- $$line; \
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#		if [ "x$$1" != "x0" ] ; then continue; fi; \
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#		if [ "$$2" -ne 0 ] ; then \
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#			echo $(AVRDUDE) $(AVRDUDE_FLAGS) -m eeprom -i $(TARGET).eep; \
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#			$(AVRDUDE) $(AVRDUDE_FLAGS) -m eeprom -i $(TARGET).eep; \
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#			break; \
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#		fi; \
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#	done
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#	if[$PROGRAMMER == "uisp"]; then 
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	   uisp -dlpt=$(PORT) -dpart=$(MCU) -dprog=$(PROGRAMMER_DEVICE) if=$(TARGET).hex --upload
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#	fi;
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# Create final output files (.hex, .eep) from ELF output file.
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%.hex: %.elf
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	$(OBJCOPY) -O $(FORMAT) -R .eeprom $< $@
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%.eep: %.elf
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	-$(OBJCOPY) -j .eeprom --set-section-flags=.eeprom="alloc,load" \
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	--change-section-lma .eeprom=0 -O $(FORMAT) $< $@
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# Create extended listing file from ELF output file.
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%.lss: %.elf
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	$(OBJDUMP) -h -S $< > $@
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# Link: create ELF output file from object files.
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.SECONDARY : $(TARGET).elf
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.PRECIOUS : $(OBJ)
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%.elf: $(OBJ)
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	$(CC) $(ALL_CFLAGS) $(OBJ) --output $@ $(LDFLAGS)
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# Compile: create object files from C source files.
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%.o : %.c
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	$(CC) -c $(ALL_CFLAGS) $< -o $@
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# Compile: create assembler files from C source files.
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%.s : %.c
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	$(CC) -S $(ALL_CFLAGS) $< -o $@
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# Assemble: create object files from assembler source files.
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%.o : %.S
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	$(CC) -c $(ALL_ASFLAGS) $< -o $@
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# Target: clean project.
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clean: begin clean_list finished end
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clean_list :
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	$(REMOVE) $(TARGET).hex
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	$(REMOVE) $(TARGET).eep
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	$(REMOVE) $(TARGET).obj
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	$(REMOVE) $(TARGET).cof
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	$(REMOVE) $(TARGET).elf
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	$(REMOVE) $(TARGET).map
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	$(REMOVE) $(TARGET).obj
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	$(REMOVE) $(TARGET).a90
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	$(REMOVE) $(TARGET).sym
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	$(REMOVE) $(TARGET).lnk
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	$(REMOVE) $(TARGET).lss
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	$(REMOVE) $(OBJ)
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	$(REMOVE) $(LST)
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	$(REMOVE) $(SRC:.c=.s)
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	$(REMOVE) $(SRC:.c=.d)
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# Automatically generate C source code dependencies.
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# (Code originally taken from the GNU make user manual and modified
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# (See README.txt Credits).)
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#
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# Note that this will work with sh (bash) and sed that is shipped with WinAVR
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# (see the SHELL variable defined above).
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# This may not work with other shells or other seds.
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#
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%.d: %.c
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	set -e; $(CC) -MM $(ALL_CFLAGS) $< \
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	| sed 's,\(.*\)\.o[ :]*,\1.o \1.d : ,g' > $@; \
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	[ -s $@ ] || rm -f $@
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# Remove the '-' if you want to see the dependency files generated.
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-include $(SRC:.c=.d)
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# Listing of phony targets.
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.PHONY : all begin finish end sizebefore sizeafter gccversion coff extcoff \
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	clean clean_list program
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