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- # Hey Emacs, this is a -*- makefile -*-
-
- # AVR-GCC Makefile template, derived from the WinAVR template (which
- # is public domain), believed to be neutral to any flavor of "make"
- # (GNU make, BSD make, SysV make)
-
-
- MCU = atmega328p
- FORMAT = ihex
- TARGET = keyboard-i2c-slave
- SRC = \
- $(TARGET).c \
- uno-matrix.c \
- ../serial.c \
- ../i2c-slave.c
-
- ASRC =
- OPT = s
-
- # Programming support using avrdude. Settings and variables.
-
- AVRDUDE_PROGRAMMER = arduino
- AVRDUDE_PORT = /dev/ttyACM0
-
- # Name of this Makefile (used for "make depend").
- MAKEFILE = Makefile
-
- # Debugging format.
- # Native formats for AVR-GCC's -g are stabs [default], or dwarf-2.
- # AVR (extended) COFF requires stabs, plus an avr-objcopy run.
- DEBUG = stabs
-
- # Compiler flag to set the C Standard level.
- # c89 - "ANSI" C
- # gnu89 - c89 plus GCC extensions
- # c99 - ISO C99 standard (not yet fully implemented)
- # gnu99 - c99 plus GCC extensions
- CSTANDARD = -std=gnu99
-
- # Place -D or -U options here
- CDEFS =
-
- # Place -I options here
- CINCS =
-
-
- CDEBUG = -g$(DEBUG)
- CWARN = -Wall -Wstrict-prototypes
- CTUNING = -funsigned-char -funsigned-bitfields -fpack-struct -fshort-enums
- #CEXTRA = -Wa,-adhlns=$(<:.c=.lst)
- CFLAGS = $(CDEBUG) $(CDEFS) $(CINCS) -O$(OPT) $(CWARN) $(CSTANDARD) $(CEXTRA) \
- -fno-aggressive-loop-optimizations
-
- #ASFLAGS = -Wa,-adhlns=$(<:.S=.lst),-gstabs
-
-
- #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,--section-start,.data=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 =
-
- #LDMAP = $(LDFLAGS) -Wl,-Map=$(TARGET).map,--cref
- LDFLAGS = $(EXTMEMOPTS) $(LDMAP) $(PRINTF_LIB) $(SCANF_LIB) $(MATH_LIB)
-
-
- AVRDUDE_WRITE_FLASH = -U flash:w:$(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 <http://savannah.nongnu.org/projects/avrdude>
- # to submit bug reports.
- #AVRDUDE_VERBOSE = -v -v
-
- AVRDUDE_BASIC = -p $(MCU) -P $(AVRDUDE_PORT) -c $(AVRDUDE_PROGRAMMER)
- AVRDUDE_FLAGS = $(AVRDUDE_BASIC) $(AVRDUDE_NO_VERIFY) $(AVRDUDE_VERBOSE) $(AVRDUDE_ERASE_COUNTER)
-
-
- CC = avr-gcc
- OBJCOPY = avr-objcopy
- OBJDUMP = avr-objdump
- SIZE = avr-size
- NM = avr-nm
- AVRDUDE = avrdude
- REMOVE = rm -f
- MV = mv -f
-
- # Define all object files.
- OBJ = $(SRC:.c=.o) $(ASRC:.S=.o)
-
- # Define all listing files.
- LST = $(ASRC:.S=.lst) $(SRC:.c=.lst)
-
- # Combine all necessary flags and optional flags.
- # Add target processor to flags.
- ALL_CFLAGS = -mmcu=$(MCU) -I. $(CFLAGS)
- ALL_ASFLAGS = -mmcu=$(MCU) -I. -x assembler-with-cpp $(ASFLAGS)
-
-
- # Default target.
- all: build
-
- build: elf hex eep
-
- elf: $(TARGET).elf
- hex: $(TARGET).hex
- eep: $(TARGET).eep
- lss: $(TARGET).lss
- sym: $(TARGET).sym
-
-
- # 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
- $(COFFCONVERT) -O coff-avr $(TARGET).elf $(TARGET).cof
-
-
- extcoff: $(TARGET).elf
- $(COFFCONVERT) -O coff-ext-avr $(TARGET).elf $(TARGET).cof
-
-
- .SUFFIXES: .elf .hex .eep .lss .sym
-
- .elf.hex:
- $(OBJCOPY) -O $(FORMAT) -R .eeprom $< $@
-
- .elf.eep:
- -$(OBJCOPY) -j .eeprom --set-section-flags=.eeprom="alloc,load" \
- --change-section-lma .eeprom=0 -O $(FORMAT) $< $@
-
- # Create extended listing file from ELF output file.
- .elf.lss:
- $(OBJDUMP) -h -S $< > $@
-
- # Create a symbol table from ELF output file.
- .elf.sym:
- $(NM) -n $< > $@
-
-
-
- # Link: create ELF output file from object files.
- $(TARGET).elf: $(OBJ)
- $(CC) $(ALL_CFLAGS) $(OBJ) --output $@ $(LDFLAGS)
-
-
- # Compile: create object files from C source files.
- .c.o:
- $(CC) -c $(ALL_CFLAGS) $< -o $@
-
-
- # Compile: create assembler files from C source files.
- .c.s:
- $(CC) -S $(ALL_CFLAGS) $< -o $@
-
-
- # Assemble: create object files from assembler source files.
- .S.o:
- $(CC) -c $(ALL_ASFLAGS) $< -o $@
-
-
-
- # Target: clean project.
- clean:
- $(REMOVE) $(TARGET).hex $(TARGET).eep $(TARGET).cof $(TARGET).elf \
- $(TARGET).map $(TARGET).sym $(TARGET).lss \
- $(OBJ) $(LST) $(SRC:.c=.s) $(SRC:.c=.d)
-
- depend:
- if grep '^# DO NOT DELETE' $(MAKEFILE) >/dev/null; \
- then \
- sed -e '/^# DO NOT DELETE/,$$d' $(MAKEFILE) > \
- $(MAKEFILE).$$$$ && \
- $(MV) $(MAKEFILE).$$$$ $(MAKEFILE); \
- fi
- echo '# DO NOT DELETE THIS LINE -- make depend depends on it.' \
- >> $(MAKEFILE); \
- $(CC) -M -mmcu=$(MCU) $(CDEFS) $(CINCS) $(SRC) $(ASRC) >> $(MAKEFILE)
-
- .PHONY: all build elf hex eep lss sym program coff extcoff clean depend
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