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# WinAVR Sample makefile written by Eric B. Weddington, Jörg Wunsch, et al.

# Released to the Public Domain

# Please read the make user manual!

#

# Additional material for this makefile was submitted by:

#  Tim Henigan

#  Peter Fleury

#  Reiner Patommel

#  Sander Pool

#  Frederik Rouleau

#  Markus Pfaff

#

# On command line:

#

# make all = Make software.

#

# make clean = Clean out built project files.

#

# make coff = Convert ELF to AVR COFF (for use with AVR Studio 3.x or VMLAB).

#

# make extcoff = Convert ELF to AVR Extended COFF (for use with AVR Studio

#                4.07 or greater).

#

# make program = Download the hex file to the device, using avrdude.  Please

#                customize the avrdude settings below first!

#

# make filename.s = Just compile filename.c into the assembler code only

#

# To rebuild project do "make clean" then "make all".

#

# MCU name

MCU = atmega64

# Output format. (can be srec, ihex, binary)

FORMAT = ihex

# Target file name (without extension).

TARGET = Dhrystone

# List C source files here. (C dependencies are automatically generated.)

SRC = dhry21a.c dhry21b.c timers_b.c estubs.c

# List Assembler source files here.

# Make them always end in a capital .S.  Files ending in a lowercase .s

# will not be considered source files but generated files (assembler

# output from the compiler), and will be deleted upon "make clean"!

# Even though the DOS/Win* filesystem matches both .s and .S the same,

# it will preserve the spelling of the filenames, and gcc itself does

# care about how the name is spelled on its command-line.

ASRC =

# Optimization level, can be [0, 1, 2, 3, s].

# 0 = turn off optimization. s = optimize for size.

# (Note: 3 is not always the best optimization level. See avr-libc FAQ.)

OPT = s

# List any extra directories to look for include files here.

#     Each directory must be seperated by a space.

EXTRAINCDIRS =

# Compiler flag to set the C Standard level.

CSTANDARD_C89 = c89

CSTANDARD_GNU89 = gnu89

CSTANDARD_C99 = c99

CSTANDARD_GNU99 = gnu99

CSTANDARD = -std=$(CSTANDARD_GNU99)

# Compiler flags.

#  -g:           generate debugging information

#  -O*:          optimization level

#  -f...:        tuning, see GCC manual and avr-libc documentation

#  -Wall...:     warning level

#  -Wa,...:      tell GCC to pass this to the assembler.

#    -adhlns...: create assembler listing

CFLAGS = -g

CFLAGS += -O$(OPT)

CFLAGS += -funsigned-char -funsigned-bitfields -fpack-struct

CFLAGS += -Wall -Wstrict-prototypes

CFLAGS += -Wa,-adhlns=$(<:.c=.lst)

CFLAGS += $(patsubst %,-I%,$(EXTRAINCDIRS))

CFLAGS += $(CSTANDARD)

# Assembler flags.

#  -Wa,...:   tell GCC to pass this to the assembler.

#  -ahlms:    create listing

#  -gstabs:   have the assembler create line number information; note that

#             for use in COFF files, additional information about filenames

#             and function names needs to be present in the assembler source

#             files -- see avr-libc docs [FIXME: not yet described there]

ASFLAGS = -Wa,-adhlns=$(<:.S=.lst),-gstabs

#Additional libraries.

PRINTF_LIB_NONE =

# Minimalistic printf version

PRINTF_LIB_MIN = -Wl,-u,vfprintf -lprintf_min

# Floating point printf version (requires MATH_LIB = -lm below)

PRINTF_LIB_FLOAT = -Wl,-u,vfprintf -lprintf_flt

PRINTF_LIB = $(PRINTF_LIB_NONE)

MATH_LIB = -lm

# Linker flags.

#  -Wl,...:     tell GCC to pass this to linker.

#    -Map:      create map file

#    --cref:    add cross reference to  map file

LDFLAGS = -Wl,-Map=$(TARGET).map,--cref $(PRINTF_LIB) $(MATH_LIB)

# Programming support using avrdude. Settings and variables.

# Programming hardware: alf avr910 avrisp bascom bsd

# dt006 pavr picoweb pony-stk200 sp12 stk200 stk500

#

# Type: avrdude -c ?

# to get a full listing.

#

AVRDUDE_PROGRAMMER = stk500

# com1 = serial port. Use lpt1 to connect to parallel port.

AVRDUDE_PORT = com1    # programmer connected to serial device

AVRDUDE_WRITE_FLASH = -U flash:w:$(TARGET).hex

#AVRDUDE_WRITE_EEPROM = -U eeprom:w:$(TARGET).eep

# Uncomment the following if you want avrdude's erase cycle counter.

# Note that this counter needs to be initialized first using -Yn,

# see avrdude manual.

#AVRDUDE_ERASE_COUNTER = -y

# Uncomment the following if you do /not/ wish a verification to be

# performed after programming the device.

#AVRDUDE_NO_VERIFY = -V

# Increase verbosity level.  Please use this when submitting bug

# reports about avrdude. See 

# to submit bug reports.

#AVRDUDE_VERBOSE = -v -v

AVRDUDE_FLAGS = -p $(MCU) -P $(AVRDUDE_PORT) -c $(AVRDUDE_PROGRAMMER)

AVRDUDE_FLAGS += $(AVRDUDE_NO_VERIFY)

AVRDUDE_FLAGS += $(AVRDUDE_VERBOSE)

AVRDUDE_FLAGS += $(AVRDUDE_ERASE_COUNTER)

# ---------------------------------------------------------------------------

# Define directories, if needed.

DIRAVR = C:/CygWin/WinAVR

DIRAVRBIN = $(DIRAVR)/bin

DIRAVRUTILS = $(DIRAVR)/utils/bin

DIRINC = .

DIRLIB = $(DIRAVR)/avr/lib

# Define programs and commands.

SHELL = sh

CC = avr-gcc

OBJCOPY = avr-objcopy

OBJDUMP = avr-objdump

SIZE = avr-size

NM = avr-nm

AVRDUDE = avrdude

REMOVE = rm -f

COPY = cp

# Define Messages

# English

MSG_ERRORS_NONE = Errors: none

MSG_BEGIN = -------- begin --------

MSG_END = --------  end  --------

MSG_SIZE_BEFORE = Size before:

MSG_SIZE_AFTER = Size after:

MSG_COFF = Converting to AVR COFF:

MSG_EXTENDED_COFF = Converting to AVR Extended COFF:

MSG_FLASH = Creating load file for Flash:

MSG_EEPROM = Creating load file for EEPROM:

MSG_EXTENDED_LISTING = Creating Extended Listing:

MSG_SYMBOL_TABLE = Creating Symbol Table:

MSG_LINKING = Linking:

MSG_COMPILING = Compiling:

MSG_ASSEMBLING = Assembling:

MSG_CLEANING = Cleaning project:

# Define all object files.

OBJ = $(SRC:.c=.o) $(ASRC:.S=.o)

# Define all listing files.

LST = $(ASRC:.S=.lst) $(SRC:.c=.lst)

# Compiler flags to generate dependency files.

GENDEPFLAGS = -Wp,-M,-MP,-MT,$(*F).o,-MF,.dep/$(@F).d

# Combine all necessary flags and optional flags.

# Add target processor to flags.

ALL_CFLAGS = -mmcu=$(MCU) -I. $(CFLAGS) $(GENDEPFLAGS)

ALL_ASFLAGS = -mmcu=$(MCU) -I. -x assembler-with-cpp $(ASFLAGS)

# Default target.

all: begin gccversion sizebefore build sizeafter finished end

build: elf hex eep lss sym

elf: $(TARGET).elf

hex: $(TARGET).hex

eep: $(TARGET).eep

lss: $(TARGET).lss

sym: $(TARGET).sym

# Eye candy.

# AVR Studio 3.x does not check make's exit code but relies on

# the following magic strings to be generated by the compile job.

begin:

        @echo

        @echo $(MSG_BEGIN)

finished:

        @echo $(MSG_ERRORS_NONE)

end:

        @echo $(MSG_END)

        @echo

# Display size of file.

HEXSIZE = $(SIZE) --target=$(FORMAT) $(TARGET).hex

ELFSIZE = $(SIZE) -A $(TARGET).elf

sizebefore:

        @if [ -f $(TARGET).elf ]; then echo; echo $(MSG_SIZE_BEFORE); $(ELFSIZE); echo; fi

sizeafter:

        @if [ -f $(TARGET).elf ]; then echo; echo $(MSG_SIZE_AFTER); $(ELFSIZE); echo; fi

# Display compiler version information.

gccversion :

        @$(CC) --version

# Program the device.

program: $(TARGET).hex $(TARGET).eep

        $(AVRDUDE) $(AVRDUDE_FLAGS) $(AVRDUDE_WRITE_FLASH) $(AVRDUDE_WRITE_EEPROM)

# Convert ELF to COFF for use in debugging / simulating in AVR Studio or VMLAB.

COFFCONVERT=$(OBJCOPY) --debugging \

--change-section-address .data-0x800000 \

--change-section-address .bss-0x800000 \

--change-section-address .noinit-0x800000 \

--change-section-address .eeprom-0x810000

coff: $(TARGET).elf

        @echo

        @echo $(MSG_COFF) $(TARGET).cof

        $(COFFCONVERT) -O coff-avr $< $(TARGET).cof

extcoff: $(TARGET).elf

        @echo

        @echo $(MSG_EXTENDED_COFF) $(TARGET).cof

        $(COFFCONVERT) -O coff-ext-avr $< $(TARGET).cof

# Create final output files (.hex, .eep) from ELF output file.

%.hex: %.elf

        @echo

        @echo $(MSG_FLASH) $@

        $(OBJCOPY) -O $(FORMAT) -R .eeprom $< $@

%.eep: %.elf

        @echo

        @echo $(MSG_EEPROM) $@

        -$(OBJCOPY) -j .eeprom --set-section-flags=.eeprom="alloc,load" \

        --change-section-lma .eeprom=0 -O $(FORMAT) $< $@

# Create extended listing file from ELF output file.

%.lss: %.elf

        @echo

        @echo $(MSG_EXTENDED_LISTING) $@

        $(OBJDUMP) -h -S $< > $@

# Create a symbol table from ELF output file.

%.sym: %.elf

        @echo

        @echo $(MSG_SYMBOL_TABLE) $@

        $(NM) -n $< > $@

# Link: create ELF output file from object files.

.SECONDARY : $(TARGET).elf

.PRECIOUS : $(OBJ)

%.elf: $(OBJ)

        @echo

        @echo $(MSG_LINKING) $@

        $(CC) $(ALL_CFLAGS) $(OBJ) --output $@ $(LDFLAGS)

# Compile: create object files from C source files.

%.o : %.c

        @echo

        @echo $(MSG_COMPILING) $<

        $(CC) -c $(ALL_CFLAGS) $< -o $@

# Compile: create assembler files from C source files.

%.s : %.c

        $(CC) -S $(ALL_CFLAGS) $< -o $@

# Assemble: create object files from assembler source files.

%.o : %.S

        @echo

        @echo $(MSG_ASSEMBLING) $<

        $(CC) -c $(ALL_ASFLAGS) $< -o $@

# Target: clean project.

clean: begin clean_list finished end

clean_list :

        @echo

        @echo $(MSG_CLEANING)

        $(REMOVE) $(TARGET).hex

        $(REMOVE) $(TARGET).eep

        $(REMOVE) $(TARGET).obj

        $(REMOVE) $(TARGET).cof

        $(REMOVE) $(TARGET).elf

        $(REMOVE) $(TARGET).map

        $(REMOVE) $(TARGET).obj

        $(REMOVE) $(TARGET).a90

        $(REMOVE) $(TARGET).sym

        $(REMOVE) $(TARGET).lnk

        $(REMOVE) $(TARGET).lss

        $(REMOVE) $(OBJ)

        $(REMOVE) $(LST)

        $(REMOVE) $(SRC:.c=.s)

        $(REMOVE) $(SRC:.c=.d)

        $(REMOVE) .dep/*

# Include the dependency files.

-include $(shell mkdir .dep 2>/dev/null) $(wildcard .dep/*)

# Listing of phony targets.

.PHONY : all begin finish end sizebefore sizeafter gccversion \

build elf hex eep lss sym coff extcoff \

clean clean_list program