| # 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 = attiny13 |
| #MCU = attiny45 |
| FORMAT = ihex |
| TARGET = asmdemo |
| SRC = $(TARGET).c |
| ASRC = isrs.S |
| OPT = s |
| |
| # Name of this Makefile (used for "make depend"). |
| MAKEFILE = Makefile |
| |
| # Compiler flag to set the C Standard level. |
| # c89 - "ANSI" C |
| # gnu89 - c89 plus GCC extensions |
| # c99 - ISO C99 standard (not yet fully implemented) |
| # gnu99 - c99 plus GCC extensions |
| CSTANDARD = -std=gnu99 |
| |
| # Place -D or -U options here |
| CDEFS = |
| |
| # Place -I options here |
| CINCS = |
| |
| |
| CDEBUG = -g |
| CWARN = -Wall -Wstrict-prototypes |
| CTUNING = -funsigned-char -funsigned-bitfields -fpack-struct -fshort-enums |
| #CEXTRA = -Wa,-adhlns=$(<:.c=.lst) |
| CFLAGS = $(CDEBUG) $(CDEFS) $(CINCS) -O$(OPT) $(CWARN) $(CSTANDARD) $(CEXTRA) |
| |
| |
| #ASFLAGS = -Wa,-adhlns=$(<:.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,-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 = |
| |
| #LDMAP = $(LDFLAGS) -Wl,-Map=$(TARGET).map,--cref |
| LDFLAGS = $(EXTMEMOPTS) $(LDMAP) $(PRINTF_LIB) $(SCANF_LIB) $(MATH_LIB) |
| |
| |
| # Programming support using avrdude. Settings and variables. |
| |
| AVRDUDE_PROGRAMMER = stk500v2 |
| AVRDUDE_PORT = /dev/cuaa1 |
| |
| AVRDUDE_WRITE_FLASH = -U flash:w:$(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 |
| |
| |