# Hey Emacs, this is a -*- makefile -*- # # WinAVR 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". # # mth 2004/09 # Differences from WinAVR 20040720 sample: # - DEPFLAGS according to Eric Weddingtion's fix (avrfreaks/gcc-forum) # - F_OSC Define in CFLAGS and AFLAGS # MCU name MCU = atmega16 # Main Oscillator Frequency # This is only used to define F_OSC in all assembler and c-sources. F_OSC = 7372800 # 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 = $(TARGET).c # List Assembler source files here. # Make them always end in a capital .S. Files ending in a lowercase .s # will not be considered source files but generated files (assembler # output from the compiler), and will be deleted upon "make clean"! # Even though the DOS/Win* filesystem matches both .s and .S the same, # it will preserve the spelling of the filenames, and gcc itself does # care about how the name is spelled on its command-line. ASRC = # Optimization level, can be [0, 1, 2, 3, s]. # 0 = turn off optimization. s = optimize for size. # (Note: 3 is not always the best optimization level. See avr-libc FAQ.) OPT = s # Debugging format. # Native formats for AVR-GCC's -g are stabs [default], or dwarf-2. # AVR (extended) COFF requires stabs, plus an avr-objcopy run. #DEBUG = stabs DEBUG = dwarf-2 # List any extra directories to look for include files here. # Each directory must be seperated by a space. EXTRAINCDIRS = # Compiler flag to set the C Standard level. # c89 - "ANSI" C # gnu89 - c89 plus GCC extensions # c99 - ISO C99 standard (not yet fully implemented) # gnu99 - c99 plus GCC extensions CSTANDARD = -std=gnu99 # Place -D or -U options here CDEFS = # Place -I options here CINCS = # Compiler flags. # -g*: generate debugging information # -O*: optimization level # -f...: tuning, see GCC manual and avr-libc documentation # -Wall...: warning level # -Wa,...: tell GCC to pass this to the assembler. # -adhlns...: create assembler listing CFLAGS = -g$(DEBUG) CFLAGS += $(CDEFS) $(CINCS) CFLAGS += -O$(OPT) CFLAGS += -funsigned-char -funsigned-bitfields -fpack-struct -fshort-enums CFLAGS += -Wall -Wstrict-prototypes CFLAGS += -Wa,-adhlns=$(<:.c=.lst) CFLAGS += $(patsubst %,-I%,$(EXTRAINCDIRS)) CFLAGS += $(CSTANDARD) CFLAGS += -DF_OSC=$(F_OSC) CFLAGS += -L/usr/x86_64-pc-linux-gnu/avr/lib/ # 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=$(<:.S=.lst),-gstabs ASFLAGS += -DF_OSC=$(F_OSC) #Additional libraries. # 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 = # Minimalistic scanf version SCANF_LIB_MIN = -Wl,-u,vfscanf -lscanf_min # Floating point + %[ scanf version (requires MATH_LIB = -lm below) SCANF_LIB_FLOAT = -Wl,-u,vfscanf -lscanf_flt SCANF_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=0x80ffff EXTMEMOPTS = # 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 LDFLAGS += $(EXTMEMOPTS) LDFLAGS += $(PRINTF_LIB) $(SCANF_LIB) $(MATH_LIB) # Programming support using avrdude. Settings and variables. # Programming hardware: alf avr910 avrisp bascom bsd # dt006 pavr picoweb pony-stk200 sp12 stk200 stk500 # # Type: avrdude -c ? # to get a full listing. # AVRDUDE_PROGRAMMER = jtag1 # com1 = serial port. Use lpt1 to connect to parallel port. AVRDUDE_PORT = /dev/ttyUSB0 # programmer connected to serial device AVRDUDE_WRITE_FLASH = -U flash:w:$(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 = /usr 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/$(@F).d GENDEPFLAGS = -MD -MP -MF .dep/$(@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 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