rfid / Makefile.rfid

# 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 = attiny85
FORMAT = ihex
TARGET = avrfid2
SRC = avrfid.S
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 =
#CDEFS += -DREMOVE_FLASH_BYTE_SUPPORT
#CDEFS += -DREMOVE_EEPROM_BYTE_SUPPORT
#CDEFS += -DREMOVE_FUSE_AND_LOCK_BIT_SUPPORT
#CDEFS += -DREMOVE_AVRPROG_SUPPORT
#CDEFS += -DREMOVE_BLOCK_SUPPORT

# 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) $(CTUNING) $(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 = buspirate
AVRDUDE_PORT = /dev/tty.usbserial-A800F2AW

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 -x serial_recv_timeout=100

#MY_CLOCK_IS_SLOW = -i 100
AVRDUDE_ASCII = -x ascii

AVRDUDE_BASIC = -p $(MCU) -c $(AVRDUDE_PROGRAMMER)
AVRDUDE_FLAGS = \
	-P $(AVRDUDE_PORT) \
	-x cpufreq=125 \
	$(AVRDUDE_ASCII) \
	$(MY_CLOCK_IS_SLOW) \
	$(AVRDUDE_BASIC) \
	$(AVRDUDE_NO_VERIFY) \
	$(AVRDUDE_VERBOSE) \
	$(AVRDUDE_ERASE_COUNTER) \
 

AVR_PATH = /Applications/Arduino.app/Contents//Resources/Java/hardware/tools/avr
CC = $(AVR_PATH)/bin/avr-gcc
OBJCOPY = $(AVR_PATH)/bin/avr-objcopy
OBJDUMP = $(AVR_PATH)/bin/avr-objdump
SIZE = $(AVR_PATH)/bin/avr-size
NM = $(AVR_PATH)/bin/avr-nm
#AVRDUDE = $(AVR_PATH)/bin/avrdude -C $(AVR_PATH)/etc/avrdude.conf
#AVRDUDE = avrdude

# avrdude needs some patches to work with the recovery clock.
# run out of my home dir until then.
AVRDUDE = $(HOME)/build/avrdude/avrdude/avrdude -C $(HOME)/build/avrdude/avrdude/avrdude.conf

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) \

fuses:
	$(AVRDUDE) \
		$(AVRDUDE_FLAGS) \
		-U lfuse:w:0xC0: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 $< $@

.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) -nostdlib


# 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

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


avrfid2.elf: avrfid2.c
	$(CC) $(CFLAGS) -o $@ $<
	$(SIZE) $@

CFLAGS := \
	-mmcu=attiny85 \
	-O3 \
	-Wall \
	-Wstrict-prototypes \
	-std=gnu99 \
	-nostdlib \
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