Makefile

# WinAVR Sample makefile written by Eric B. Weddington, Jörg Wunsch, et al.
# Released to the Public Domain
# Please read the make user manual!
#
# Additional material for this makefile was submitted by:
#  Tim Henigan
#  Peter Fleury
#  Reiner Patommel
#  Sander Pool
#  Frederik Rouleau
#  Markus Pfaff
#
# On command line:
#
# make all = Make software.
#
# make clean = Clean out built project files.
#
# make coff = Convert ELF to AVR COFF (for use with AVR Studio 3.x or VMLAB).
#
# make extcoff = Convert ELF to AVR Extended COFF (for use with AVR Studio
#                4.07 or greater).
#
# make program = Download the hex file to the device, using avrdude.  Please
#                customize the avrdude settings below first!
#
# make filename.s = Just compile filename.c into the assembler code only
#
# To rebuild project do "make clean" then "make all".
#

#MCU = attiny45
MCU = attiny85
#MCU = attiny84
#MCU = attiny44

#LFUSE=0xDF
#HFUSE=0xDD
# external 8MHz osc
LFUSE=0xDF
HFUSE=0xDD
EFUSE=0xFE

#old values
#LFUSE=0xDE
#HFUSE=0xDD
#EFUSE=0xFE

# for internal 8MHz osc, like BlinkM
#LFUSE=0xE2
#HFUSE=0xDD
#EFUSE=0xFE


BLINKM_TYPE = CTRLM

# see below for special '0x10', '0x11', etc. targets
I2C_ADDR ?= 0x09

# clock speed
#F_CPU = 16000000   # 16MHz on Arduino board
F_CPU = 8000000   # 8MHz is max internal
#F_CPU = 1000000   # 1MHz when CLKDIV8 fuse set (which is default)

# Output format. (can be srec, ihex, binary)
FORMAT = ihex

# Target file name (without extension).
TARGET = ctrlm


# List C source files here. (C dependencies are automatically generated.)
SRC = $(TARGET).c usiTwiSlave.c
#SRC = $(TARGET).c usiTwiSlave.c i2csw.c
#SRC = $(TARGET).c usiTwiSlave.c  usi_i2c_master.c
#SRC = $(TARGET).c usiTwiSlave.c  usiTwiMaster.c
#SRC = $(TARGET).c


# List Assembler source files here.
# Make them always end in a capital .S.  Files ending in a lowercase .s
# will not be considered source files but generated files (assembler
# output from the compiler), and will be deleted upon "make clean"!
# Even though the DOS/Win* filesystem matches both .s and .S the same,
# it will preserve the spelling of the filenames, and gcc itself does
# care about how the name is spelled on its command-line.
ASRC = 
#ASRC = i2cmaster.S



# Optimization level, can be [0, 1, 2, 3, s]. 
# 0 = turn off optimization. s = optimize for size.
# (Note: 3 is not always the best optimization level. See avr-libc FAQ.)
#OPT = s
OPT = s

# List any extra directories to look for include files here.
#     Each directory must be seperated by a space.
EXTRAINCDIRS = 


# Compiler flag to set the C Standard level.
CSTANDARD_C89 = c89
CSTANDARD_GNU89 = gnu89
CSTANDARD_C99 = c99
CSTANDARD_GNU99 = gnu99
CSTANDARD = -std=$(CSTANDARD_GNU99)

# Place -D or -U options here  (stolen from Arduino Makefile)
CDEFS = -DF_CPU=$(F_CPU) -DI2C_ADDR=$(I2C_ADDR) -D$(BLINKM_TYPE)

# Compiler flags.
#  -g:           generate debugging information
#  -O*:          optimization level
#  -f...:        tuning, see GCC manual and avr-libc documentation
#  -Wall...:     warning level
#  -Wa,...:      tell GCC to pass this to the assembler.
#    -adhlns...: create assembler listing
CFLAGS = -g
CFLAGS += -O$(OPT)
#CFLAGS += -funsigned-char -funsigned-bitfields -fpack-struct -fshort-enums
#CFLAGS += -funroll-loops
#CFLAGS += -Wall -Wstrict-prototypes -gdwarf-2
CFLAGS += -Wall -Wstrict-prototypes

CFLAGS += -Wno-unused-function

CFLAGS += -Wa,-adhlns=$(<:.c=.lst)
CFLAGS += $(patsubst %,-I%,$(EXTRAINCDIRS))
CFLAGS += $(CSTANDARD)
CFLAGS += $(CDEFS)



# Assembler flags.
#  -Wa,...:   tell GCC to pass this to the assembler.
#  -ahlms:    create listing
#  -gstabs:   have the assembler create line number information; note that
#             for use in COFF files, additional information about filenames
#             and function names needs to be present in the assembler source
#             files -- see avr-libc docs [FIXME: not yet described there]
#ASFLAGS = -Wa,-adhlns=$(<:.S=.lst),-gstabs,-gdwarf2
ASFLAGS = -Wa,-adhlns=$(<:.S=.lst),-gstabs



#Additional libraries.

PRINTF_LIB_NONE = 

# 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 = $(PRINTF_LIB_NONE)

MATH_LIB = -lm



# Linker flags.
#  -Wl,...:     tell GCC to pass this to linker.
#    -Map:      create map file
#    --cref:    add cross reference to  map file
LDFLAGS = -Wl,-Map=$(TARGET).map,--cref $(PRINTF_LIB) $(MATH_LIB)




# Programming support using avrdude. Settings and variables.

# Programming hardware: alf avr910 avrisp bascom bsd 
# dt006 pavr picoweb pony-stk200 sp12 stk200 stk500
#
# Type: avrdude -c ?
# to get a full listing.
#
#AVRDUDE_PROGRAMMER = butterfly
#AVRDUDE_PROGRAMMER = stk500v2
AVRDUDE_PROGRAMMER = avrispmkII

# com1 = serial port. Use lpt1 to connect to parallel port.
#AVRDUDE_PORT = com5    # programmer connected to serial device
AVRDUDE_PORT = usb     # for AVR-ISP mkII
#AVRDUDE_PORT = /dev/tty.usbserial0  # programmer connected to serial device
#AVRDUDE_PORT = /dev/cu.KeySerial1  # programmer connected to serial device

AVRDUDE_WRITE_FLASH = -e -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_FLAGS = -p $(MCU) -P $(AVRDUDE_PORT) -c $(AVRDUDE_PROGRAMMER)
AVRDUDE_FLAGS += $(AVRDUDE_NO_VERIFY)
AVRDUDE_FLAGS += $(AVRDUDE_VERBOSE)
AVRDUDE_FLAGS += $(AVRDUDE_ERASE_COUNTER)


PKGDATE = `date +%Y%m%d`

# ---------------------------------------------------------------------------

# Define directories, if needed.
#DIRAVR = c:/winavr
#DIRAVRBIN = $(DIRAVR)/bin
#DIRAVRUTILS = $(DIRAVR)/utils/bin
#DIRINC = .
#DIRLIB = $(DIRAVR)/avr/lib


# Define programs and commands.
SHELL = sh
CC = avr-gcc
OBJCOPY = avr-objcopy
OBJDUMP = avr-objdump
SIZE = avr-size
NM = avr-nm
AVRDUDE = avrdude
REMOVE = rm -f
COPY = cp




# Define Messages
# English
MSG_ERRORS_NONE = Errors: none
MSG_BEGIN = -------- begin --------
MSG_END = --------  end  --------
MSG_SIZE_BEFORE = Size before: 
MSG_SIZE_AFTER = Size after:
MSG_COFF = Converting to AVR COFF:
MSG_EXTENDED_COFF = Converting to AVR Extended COFF:
MSG_FLASH = Creating load file for Flash:
MSG_EEPROM = Creating load file for EEPROM:
MSG_EXTENDED_LISTING = Creating Extended Listing:
MSG_SYMBOL_TABLE = Creating Symbol Table:
MSG_LINKING = Linking:
MSG_COMPILING = Compiling:
MSG_ASSEMBLING = Assembling:
MSG_CLEANING = Cleaning project:




# Define all object files.
OBJ = $(SRC:.c=.o) $(ASRC:.S=.o) 

# Define all listing files.
LST = $(ASRC:.S=.lst) $(SRC:.c=.lst)


# Compiler flags to generate dependency files.
GENDEPFLAGS = -Wp,-M,-MP,-MT,$(*F).o,-MF,.dep/$(@F).d


# Combine all necessary flags and optional flags.
# Add target processor to flags.
ALL_CFLAGS = -mmcu=$(MCU) -I. $(CFLAGS) $(GENDEPFLAGS)
ALL_ASFLAGS = -mmcu=$(MCU) -I. -x assembler-with-cpp $(ASFLAGS)





# Default target.
all: begin gccversion sizebefore build sizeafter finished end

# build: elf hex eep lss sym
# removed eep for now to eliminate build warnings
build: elf hex lss sym eep

elf: $(TARGET).elf
hex: $(TARGET).hex
eep: $(TARGET).eep
lss: $(TARGET).lss 
sym: $(TARGET).sym


# if target begins is one of these we're programming by I2C_ADDR
#n/a    1    2    3    4    5    6    7    8    9    A    B    C
0x10 0x11 0x12 0x13 0x14 0x15 0x16 0x17 0x18 0x19 0x1a 0x1b 0x1c:
	make clean
	I2C_ADDR="$@" make build 

packaging:
	echo "making $(TARGET)_$(PKGDATE)"
	mkdir -p $(TARGET)_$(PKGDATE)
	cp -f $(TARGET).hex $(TARGET)_$(PKGDATE)/$(TARGET)_$(PKGDATE).hex
	cp -f $(TARGET).eep $(TARGET)_$(PKGDATE)/$(TARGET)_$(PKGDATE).eep
	cp -f $(TARGET)_fuse.txt $(TARGET)_$(PKGDATE)/$(TARGET)_fuse_$(PKGDATE).txt
	zip -r $(TARGET)_$(PKGDATE).zip $(TARGET)_$(PKGDATE)


# Eye candy.
# AVR Studio 3.x does not check make's exit code but relies on
# the following magic strings to be generated by the compile job.
begin:
	@echo
	@echo $(MSG_BEGIN)

finished:
	@echo $(MSG_ERRORS_NONE)

end:
	@echo $(MSG_END)
	@echo


# Display size of file.
HEXSIZE = $(SIZE) --target=$(FORMAT) $(TARGET).hex
#ELFSIZE = $(SIZE) -A $(TARGET).elf
ELFSIZE = $(SIZE) --mcu=$(MCU) --format=avr $(TARGET).elf
sizebefore:
	@if [ -f $(TARGET).elf ]; then echo; echo $(MSG_SIZE_BEFORE); $(ELFSIZE); echo; fi

sizeafter:
	@if [ -f $(TARGET).elf ]; then echo; echo $(MSG_SIZE_AFTER); $(ELFSIZE); echo; fi

#checksize:
#	./checksize $(TARGET).elf

# Display compiler version information.
gccversion : 
	@$(CC) --version

# Program the device.  
program: $(TARGET).hex $(TARGET).eep
	$(AVRDUDE) $(AVRDUDE_FLAGS) $(AVRDUDE_WRITE_FLASH) $(AVRDUDE_WRITE_EEPROM)


# from obdev.at  AVR USB EasyLogger :
# http://obdev.at/ftp/pub/Products/avrusb/EasyLogger.2008-02-28.tar.gz
# Fuse high byte:
# 0xdd = 1 1 0 1   1 1 0 1
#        ^ ^ ^ ^   ^ \-+-/ 
#        | | | |   |   +------ BODLEVEL 2..0 (brownout trigger level -> 2.7V)
#        | | | |   +---------- EESAVE (preserve EEPROM on Chip Erase -> not preserved)
#        | | | +-------------- WDTON (watchdog timer always on -> disable)
#        | | +---------------- SPIEN (enable serial programming -> enabled)
#        | +------------------ DWEN (debug wire enable)
#        +-------------------- RSTDISBL (disable external reset -> enabled)
#
# Fuse low byte:
# 0xe1 = 1 1 1 0   0 0 0 1
#        ^ ^ \+/   \--+--/
#        | |  |       +------- CKSEL 3..0 (clock selection -> HF PLL)
#        | |  +--------------- SUT 1..0 (BOD enabled, fast rising power)
#        | +------------------ CKOUT (clock output on CKOUT pin -> disabled)
#        +-------------------- CKDIV8 (divide clock by 8 -> don't divide)


# erase the device
# fuses:    0xFF,0xDF14    (stk500:   attiny2313 default, internal osc, etc.)
# fuses:    0xFF,0xDF,0x64 (stk500v2: attiny2313 default, internal osc, etc.)
# lockbits: 0xE3  (stk500:   mode 1, no memory locks) 
# lockbits: 0xFF  (stk500v2: mode 1, no memory locks)
# atmega8 int 8MHz osc: lfuse:0xE4 hfuse:0xCA (as reported by avrdude)
# attiny45: 0x62,0xDF (Default) -> 0xE2,0xDF, 0xFE <- self-programming enable
# attiny25: 0x62,0xDF (Default) -> 0xE2 (low), 0xDF (high)
#
# Fuse high byte: 
# 0xdf = 1 1 0 1   1 1 1 1
#        ^ ^ ^ ^   ^ \-+-/ 
#        | | | |   |   +------ BODLEVEL 2..0 (brownout trigger level -> 1.8V)
#        | | | |   +---------- EESAVE (preserve EEPROM on Chip Erase -> not preserved)
#        | | | +-------------- WDTON (watchdog timer always on -> disable)
#        | | +---------------- SPIEN (enable serial programming -> enabled)
#        | +------------------ DWEN (debug wire enable)
#        +-------------------- RSTDISBL (disable external reset -> enabled)
#
# Fuse low byte:
# 0xe2 = 1 1 1 0   0 0 1 0
#        ^ ^ \+/   \--+--/
#        | |  |       +------- CKSEL 3..0 (clock selection -> int 8MHz osc)
#        | |  +--------------- SUT 1..0 (BOD enabled, fast rising power)
#        | +------------------ CKOUT (clock output on CKOUT pin -> disabled)
#        +-------------------- CKDIV8 (divide clock by 8 -> don't divide)
#erase:
#	$(AVRDUDE) $(AVRDUDE_FLAGS) -e -U lock:w:0x3f:m -U lfuse:w:0xdf:m -U hfuse:w:0xca:m

erase:
	$(AVRDUDE) $(AVRDUDE_FLAGS) -e -U lfuse:w:$(LFUSE):m -U hfuse:w:$(HFUSE):m -U efuse:w:$(EFUSE):m

eraseprogram: $(TARGET).hex $(TARGET).eep
	$(AVRDUDE) $(AVRDUDE_FLAGS) -e -U lfuse:w:$(LFUSE):m -U hfuse:w:$(HFUSE):m -U efuse:w:$(EFUSE):m $(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
	@echo
	@echo $(MSG_COFF) $(TARGET).cof
	$(COFFCONVERT) -O coff-avr $< $(TARGET).cof


extcoff: $(TARGET).elf
	@echo
	@echo $(MSG_EXTENDED_COFF) $(TARGET).cof
	$(COFFCONVERT) -O coff-ext-avr $< $(TARGET).cof



# Create final output files (.hex, .eep) from ELF output file.
%.hex: %.elf
	@echo
	@echo $(MSG_FLASH) $@
	$(OBJCOPY) -O $(FORMAT) -R .eeprom $< $@

%.eep: %.elf
	@echo
	@echo $(MSG_EEPROM) $@
	-$(OBJCOPY) -j .eeprom --set-section-flags=.eeprom="alloc,load" \
	--change-section-lma .eeprom=0 -O $(FORMAT) $< $@

# Create extended listing file from ELF output file.
%.lss: %.elf
	@echo
	@echo $(MSG_EXTENDED_LISTING) $@
	$(OBJDUMP) -h -S $< > $@

# Create a symbol table from ELF output file.
%.sym: %.elf
	@echo
	@echo $(MSG_SYMBOL_TABLE) $@
	$(NM) -n $< > $@



# Link: create ELF output file from object files.
.SECONDARY : $(TARGET).elf
.PRECIOUS : $(OBJ)
%.elf: $(OBJ)
	@echo
	@echo $(MSG_LINKING) $@
	$(CC) $(ALL_CFLAGS) $(OBJ) --output $@ $(LDFLAGS)


# Compile: create object files from C source files.
%.o : %.c
	@echo
	@echo $(MSG_COMPILING) $<
	$(CC) -c $(ALL_CFLAGS) $< -o $@ 


# Compile: create assembler files from C source files.
%.s : %.c
	$(CC) -S $(ALL_CFLAGS) $< -o $@


# Assemble: create object files from assembler source files.
%.o : %.S
	@echo
	@echo $(MSG_ASSEMBLING) $<
	$(CC) -c $(ALL_ASFLAGS) $< -o $@



# Target: clean project.
clean: begin clean_list finished end

clean_list :
	@echo
	@echo $(MSG_CLEANING)
	$(REMOVE) $(TARGET).hex
	$(REMOVE) $(TARGET).eep
	$(REMOVE) $(TARGET).obj
	$(REMOVE) $(TARGET).cof
	$(REMOVE) $(TARGET).elf
	$(REMOVE) $(TARGET).map
	$(REMOVE) $(TARGET).obj
	$(REMOVE) $(TARGET).a90
	$(REMOVE) $(TARGET).sym
	$(REMOVE) $(TARGET).lnk
	$(REMOVE) $(TARGET).lss
	$(REMOVE) $(OBJ)
	$(REMOVE) $(LST)
	$(REMOVE) $(SRC:.c=.s)
	$(REMOVE) $(SRC:.c=.d)
	$(REMOVE) .dep/*



# Include the dependency files.
-include $(shell mkdir .dep 2>/dev/null) $(wildcard .dep/*)


# Listing of phony targets.
.PHONY : all begin finish end sizebefore sizeafter gccversion \
build elf hex eep lss sym coff extcoff \
clean clean_list program \
checksize \
0x10 0x11 0x12 0x13 0x14 0x15 0x16 0x17 0x18 0x19 0x1a 0x1b 0x1c