# Hey Emacs, this is a -*- makefile -*-## WinAVR makefile written by Eric B. Weddington, J鰎g 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".########## Differences from WinAVR 20040720 sample:# - DEPFLAGS according to Eric Weddingtion's fix (avrfreaks/gcc-forum)# - F_OSC Define in CFLAGS and AFLAGS# MCU nameMCU = atmega32# Main Oscillator Frequency##F_OSC = 1843200##F_OSC = 2000000##F_OSC = 3686400##F_OSC = 4000000F_OSC = 8000000##F_OSC   = 16000000# Frequencies below 1,8MHz may only work in OW_ONE_BUS-Mode##F_OSC =  1000000# Output format. (can be srec, ihex, binary)FORMAT = ihex# Target file name (without extension).TARGET = main# List C source files here. (C dependencies are automatically generated.)SRC = $(TARGET).c onewire.c delay.c ds18x20.c uart.c crc8.c##SRC += timebase.c # List Assembler source files here.# Make them always end in a capital .S.  Files ending in a lowercase .s# will not be considered source files but generated files (assembler# output from the compiler), and will be deleted upon "make clean"!# Even though the DOS/Win* filesystem matches both .s and .S the same,# it will preserve the spelling of the filenames, and gcc itself does# care about how the name is spelled on its command-line.ASRC = # Optimization level, can be [0, 1, 2, 3, s]. # 0 = turn off optimization. s = optimize for size.# (Note: 3 is not always the best optimization level. See avr-libc FAQ.)OPT = s# Debugging format.# Native formats for AVR-GCC's -g are stabs [default], or dwarf-2.# AVR (extended) COFF requires stabs, plus an avr-objcopy run.#DEBUG = stabsDEBUG = dwarf-2# List any extra directories to look for include files here.#     Each directory must be seperated by a space.EXTRAINCDIRS = # Compiler flag to set the C Standard level.# c89   - "ANSI" C# gnu89 - c89 plus GCC extensions# c99   - ISO C99 standard (not yet fully implemented)# gnu99 - c99 plus GCC extensionsCSTANDARD = -std=gnu99# Place -D or -U options hereCDEFS =# Place -I options hereCINCS =# Compiler flags.#  -g*:          generate debugging information#  -O*:          optimization level#  -f...:        tuning, see GCC manual and avr-libc documentation#  -Wall...:     warning level#  -Wa,...:      tell GCC to pass this to the assembler.#    -adhlns...: create assembler listingCFLAGS = -g$(DEBUG)CFLAGS += $(CDEFS) $(CINCS)CFLAGS += -O$(OPT)CFLAGS += -funsigned-char -funsigned-bitfields -fpack-struct -fshort-enumsCFLAGS += -Wall -Wstrict-prototypesCFLAGS += -Wa,-adhlns=$(<:.c=.lst)CFLAGS += $(patsubst %,-I%,$(EXTRAINCDIRS))CFLAGS += $(CSTANDARD)CFLAGS += -DF_OSC=$(F_OSC)# 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=$(<:.S=.lst),-gstabs ASFLAGS = -Wa,-adhlns=$(<:.S=.lst),-g$(DEBUG)ASFLAGS += -DF_OSC=$(F_OSC)#Additional libraries.# Minimalistic printf versionPRINTF_LIB_MIN = -Wl,-u,vfprintf -lprintf_min# Floating point printf version (requires MATH_LIB = -lm below)PRINTF_LIB_FLOAT = -Wl,-u,vfprintf -lprintf_fltPRINTF_LIB = # Minimalistic scanf versionSCANF_LIB_MIN = -Wl,-u,vfscanf -lscanf_min# Floating point + %[ scanf version (requires MATH_LIB = -lm below)SCANF_LIB_FLOAT = -Wl,-u,vfscanf -lscanf_fltSCANF_LIB = MATH_LIB = -lm# External memory options# 64 KB of external RAM, starting after internal RAM (ATmega128!),# used for variables (.data/.bss) and heap (malloc()).#EXTMEMOPTS = -Wl,-Tdata=0x801100,--defsym=__heap_end=0x80ffff# 64 KB of external RAM, starting after internal RAM (ATmega128!),# only used for heap (malloc()).#EXTMEMOPTS = -Wl,--defsym=__heap_start=0x801100,--defsym=__heap_end=0x80ffffEXTMEMOPTS =# Linker flags.#  -Wl,...:     tell GCC to pass this to linker.#    -Map:      create map file#    --cref:    add cross reference to  map fileLDFLAGS = -Wl,-Map=$(TARGET).map,--crefLDFLAGS += $(EXTMEMOPTS)LDFLAGS += $(PRINTF_LIB) $(SCANF_LIB) $(MATH_LIB)# Programming support using avrdude. Settings and variables.# Programming hardware: alf avr910 avrisp bascom bsd # dt006 pavr picoweb pony-stk200 sp12 stk200 stk500## Type: avrdude -c ?# to get a full listing.##AVRDUDE_PROGRAMMER = stk500AVRDUDE_PROGRAMMER = stk500v2# com1 = serial port. Use lpt1 to connect to parallel port.AVRDUDE_PORT = com1    # programmer connected to serial deviceAVRDUDE_WRITE_FLASH = -U flash:w:$(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 <http://savannah.nongnu.org/projects/avrdude> # to submit bug reports.#AVRDUDE_VERBOSE = -v -vAVRDUDE_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:/winavrDIRAVRBIN = $(DIRAVR)/binDIRAVRUTILS = $(DIRAVR)/utils/binDIRINC = .DIRLIB = $(DIRAVR)/avr/lib# Define programs and commands.SHELL = shCC = avr-gccOBJCOPY = avr-objcopyOBJDUMP = avr-objdumpSIZE = avr-sizeNM = avr-nmAVRDUDE = avrdudeREMOVE = rm -fCOPY = cp# Define Messages# EnglishMSG_ERRORS_NONE = Errors: noneMSG_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/$(@F).dGENDEPFLAGS = -MD -MP -MF .dep/$(@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 endbuild: elf hex eep lss symelf: $(TARGET).elfhex: $(TARGET).hexeep: $(TARGET).eeplss: $(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).hexELFSIZE = $(SIZE) -A $(TARGET).elfsizebefore:	@if [ -f $(TARGET).elf ]; then echo; echo $(MSG_SIZE_BEFORE); $(ELFSIZE); echo; fisizeafter:	@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).cofextcoff: $(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 endclean_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