# DTMF Generator # # Makefile # # (c) Axel (XL) Schwenke, axel.schwenke@gmx.net # # $Id: Makefile 217 2013-10-17 18:23:57Z schwenke $ MCU = attiny2313 XTAL=8000000 FORMAT = ihex TARGET = main SRC = $(TARGET).c ASRC = OPT = s # Name of this Makefile (used for "make depend"). MAKEFILE = Makefile # Debugging format. # Native formats for AVR-GCC's -g are stabs [default], or dwarf-2. # AVR (extended) COFF requires stabs, plus an avr-objcopy run. DEBUG = stabs # Compiler flag to set the C Standard level. # c89 - "ANSI" C # gnu89 - c89 plus GCC extensions # c99 - ISO C99 standard (not yet fully implemented) # gnu99 - c99 plus GCC extensions CSTANDARD = -std=gnu99 # Place -D or -U options here CDEFS = -DF_CPU=$(XTAL) # 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) $(CEXTRA) ASFLAGS = -Wa,-adhlns=$(<:.S=.lst),$(CDEBUG) #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) $(MATH_LIB) # Programming support using avrdude. Settings and variables. AVRDUDE_PROGRAMMER = usbasp AVRDUDE_PORT = usb AVRDUDE_WRITE_FLASH = -U flash:w:$(TARGET).hex # 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_BASIC = -p $(MCU) -P $(AVRDUDE_PORT) -c $(AVRDUDE_PROGRAMMER) AVRDUDE_FLAGS = $(AVRDUDE_BASIC) $(AVRDUDE_NO_VERIFY) $(AVRDUDE_VERBOSE) $(AVRDUDE_ERASE_COUNTER) HFUSE = 0xC9 LFUSE = 0x9F # Fuse high byte: # 0xc9 = 1 1 0 0 1 0 0 1 <-- BOOTRST (boot reset vector at 0x0000) # ^ ^ ^ ^ ^ ^ ^------ BOOTSZ0 # | | | | | +-------- BOOTSZ1 # | | | | + --------- EESAVE (don't preserve EEPROM over chip erase) # | | | +-------------- CKOPT (full output swing) # | | +---------------- SPIEN (allow serial programming) # | +------------------ WDTON (WDT not always on) # +-------------------- RSTDISBL (reset pin is enabled) # Fuse low byte: # 0x9f = 1 0 0 1 1 1 1 1 # ^ ^ \ / \--+--/ # | | | +------- CKSEL 3..0 (external >8M crystal) # | | +--------------- SUT 1..0 (crystal osc, BOD enabled) # | +------------------ BODEN (BrownOut Detector enabled) # +-------------------- BODLEVEL (2.7V) 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 disasm size elf: $(TARGET).elf hex: $(TARGET).hex lss: $(TARGET).lss sym: $(TARGET).sym disasm: $(TARGET).elf $(OBJDUMP) -d -S $(TARGET).elf >$(TARGET).disasm size: $(TARGET).elf $(SIZE) $(TARGET).elf # Program the device. flash: $(TARGET).hex $(AVRDUDE) $(AVRDUDE_FLAGS) $(AVRDUDE_WRITE_FLASH) fuses: $(AVRDUDE) $(AVRDUDE_FLAGS) -u -U hfuse:w:$(HFUSE):m -U lfuse:w:$(LFUSE):m # Convert ELF to COFF for use in debugging / simulating in AVR Studio or VMLAB. COFFCONVERT=$(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 $< $@ # 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).cof $(TARGET).elf \ $(TARGET).map $(TARGET).sym $(TARGET).lss $(TARGET).disasm \ $(OBJ) $(LST) $(SRC:.c=.s) $(SRC:.c=.d) distclean: clean $(REMOVE) $(TARGET).hex dtmf_tables.h 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); \ $(CC) -MM -mmcu=$(MCU) $(CDEFS) $(CINCS) $(SRC) $(ASRC) >> $(MAKEFILE) .PHONY: all build elf hex lss sym flash fuses coff extcoff clean depend disasm # manual dependencies main.o : dtmf_tables.h dtmf_tables.h : $(MAKEFILE) make_tables.pl perl make_tables.pl $(XTAL) > dtmf_tables.h # DO NOT DELETE THIS LINE -- make depend depends on it. main.o: main.c dtmf_tables.h