372 lines
9.3 KiB
Makefile
372 lines
9.3 KiB
Makefile
# MCU name
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MCU = attiny85
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F_CPU = 8000000
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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 = tvbgone
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#NA_CODE = 1
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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 = s
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# List C source files here. (C dependencies are automatically generated.)
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SRC = main.c util.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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# 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$(OPT) \
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-funsigned-char -funsigned-bitfields -fpack-struct -fshort-enums \
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-Wall -Wstrict-prototypes \
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-DF_CPU=$(F_CPU) \
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-Wa,-adhlns=$(<:.c=.lst) \
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$(patsubst %,-I%,$(EXTRAINCDIRS))
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# Set a "language standard" compiler flag.
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# Unremark just one line below to set the language standard to use.
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# gnu99 = C99 + GNU extensions. See GCC manual for more information.
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#CFLAGS += -std=c89
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#CFLAGS += -std=gnu89
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#CFLAGS += -std=c99
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CFLAGS += -std=gnu99
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ifdef EU_CODE
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CFLAGS += -DEU_CODES
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else ifdef NA_CODE
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CFLAGS += -DNA_CODES
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else
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CFLAGS += -DEU_CODES -DNA_CODES
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endif
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# Optional assembler flags.
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# -Wa,...: tell GCC to pass this to the assembler.
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# -ahlms: create listing
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# -gstabs: have the assembler create line number information; note that
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# for use in COFF files, additional information about filenames
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# and function names needs to be present in the assembler source
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# files -- see avr-libc docs [FIXME: not yet described there]
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ASFLAGS = -Wa,-adhlns=$(<:.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=$(TARGET).map,--cref
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# Additional libraries
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# Minimalistic printf version
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#LDFLAGS += -Wl,-u,vfprintf -lprintf_min
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# Floating point printf version (requires -lm below)
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#LDFLAGS += -Wl,-u,vfprintf -lprintf_flt
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# -lm = math library
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LDFLAGS += -lm
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# Programming support using avrdude. Settings and variables.
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# Programming hardware: alf avr910 avrisp bascom bsd
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# dt006 pavr picoweb pony-stk200 sp12 stk200 stk500
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#
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# Type: avrdude -c ?
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# to get a full listing.
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#
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#
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AVRDUDE_PROGRAMMER = usbtiny
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#AVRDUDE_PROGRAMMER = stk500v2
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#AVRDUDE_PORT = com3 # programmer connected to serial device
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AVRDUDE_WRITE_FLASH = -B 5 -U flash:w:$(TARGET).hex
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#AVRDUDE_WRITE_EEPROM = -U eeprom:w:$(TARGET).eep
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AVRDUDE_FLAGS = -p $(MCU) -c $(AVRDUDE_PROGRAMMER)
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#AVRDUDE_FLAGS = -p $(MCU) -P $(AVRDUDE_PORT) -c $(AVRDUDE_PROGRAMMER)
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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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# 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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# 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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AVRDUDE = avrdude
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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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# Define Messages
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# English
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MSG_ERRORS_NONE = Errors: none
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MSG_BEGIN = -------- begin --------
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MSG_END = -------- end --------
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MSG_SIZE_BEFORE = Size before:
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MSG_SIZE_AFTER = Size after:
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MSG_COFF = Converting to AVR COFF:
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MSG_EXTENDED_COFF = Converting to AVR Extended COFF:
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MSG_FLASH = Creating load file for Flash:
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MSG_EEPROM = Creating load file for EEPROM:
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MSG_EXTENDED_LISTING = Creating Extended Listing:
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MSG_SYMBOL_TABLE = Creating Symbol Table:
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MSG_LINKING = Linking:
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MSG_COMPILING = Compiling:
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MSG_ASSEMBLING = Assembling:
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MSG_CLEANING = Cleaning project:
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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 $(TARGET).sym 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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@echo
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@echo $(MSG_BEGIN)
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finished:
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@echo $(MSG_ERRORS_NONE)
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end:
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@echo $(MSG_END)
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@echo
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# Display size of file.
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sizebefore:
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@if [ -f $(TARGET).elf ]; then echo; echo $(MSG_SIZE_BEFORE); $(ELFSIZE); echo; fi
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sizeafter:
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@if [ -f $(TARGET).elf ]; then echo; echo $(MSG_SIZE_AFTER); $(ELFSIZE); echo; fi
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# Display compiler version information.
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gccversion :
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@$(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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@echo
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@echo $(MSG_COFF) $(TARGET).cof
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$(COFFCONVERT) -O coff-avr $< $(TARGET).cof
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extcoff: $(TARGET).elf
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@echo
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@echo $(MSG_EXTENDED_COFF) $(TARGET).cof
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$(COFFCONVERT) -O coff-ext-avr $< $(TARGET).cof
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reset:
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$(AVRDUDE) $(AVRDUDE_FLAGS)
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# Program the device.
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program: $(TARGET).hex $(TARGET).eep
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$(AVRDUDE) $(AVRDUDE_FLAGS) $(AVRDUDE_WRITE_FLASH) $(AVRDUDE_WRITE_EEPROM)
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full: $(TARGET).hex
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make burn-fuse
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make program
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burn-fuse:
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$(AVRDUDE) $(AVRDUDE_FLAGS) -B 250 -u -U lfuse:w:0xfd:m -U hfuse:w:0xdf:m
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read-fuse:
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$(AVRDUDE) $(AVRDUDE_FLAGS) -u -U lfuse:r:l.txt:r
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$(AVRDUDE) $(AVRDUDE_FLAGS) -u -U hfuse:r:h.txt:r
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$(AVRDUDE) $(AVRDUDE_FLAGS) -u -U efuse:r:e.txt:r
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# Create final output files (.hex, .eep) from ELF output file.
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%.hex: %.elf
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@echo
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@echo $(MSG_FLASH) $@
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$(OBJCOPY) -O $(FORMAT) -R .eeprom $< $@
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%.eep: %.elf
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@echo
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@echo $(MSG_EEPROM) $@
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-$(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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@echo
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@echo $(MSG_EXTENDED_LISTING) $@
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$(OBJDUMP) -h -S $< > $@
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# Create a symbol table from ELF output file.
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%.sym: %.elf
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@echo
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@echo $(MSG_SYMBOL_TABLE) $@
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avr-nm -n $< > $@
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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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@echo
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@echo $(MSG_LINKING) $@
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$(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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@echo
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@echo $(MSG_COMPILING) $<
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$(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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@echo
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@echo $(MSG_ASSEMBLING) $<
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$(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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@echo
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@echo $(MSG_CLEANING)
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$(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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