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# WinAVR Sample makefile written by Eric B. Weddington, Jörg Wunsch, et al.

# Released to the Public Domain

# Please read the make user manual!

#

# Retrofitted for the AVRcam project by John Orlando  6/30/2004

#

#

# 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".

#

#    Revision History:

#    Date        Rel Ver.    Notes

#    4/10/2004      0.1     Module created

#    6/30/2004      1.0     Initial release for Circuit Cellar

#                           contest.

#    1/15/2005      1.4     Removed the UartInterfaceAsm file from 

#                           file list, since the routine in that

#                           file was added to UartInterface.c.

# MCU name

MCU = atmega8

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

FORMAT = ihex

# Target file name (without extension).

TARGET = AVRcam

# Optimization level, can be [0, 1, 2, 3, s]. 0 turns off optimization.

# (Note 3 is not always the best optimization level. See avr-libc FAQ.)

OPT = 1

# List C source files here. (C dependencies are automatically generated.)

#SRC = $(TARGET).c

# If there is more than one source file, append them above, or adjust and

# uncomment the following:

# NOTE: The order of the files here is important...CamInterface.c MUST be

# the first file, due to the declaration of an array that needs to be 

# located at the very beginning of the .noinit section in on-board RAM.

SRC = CamInterface.c Main.c Executive.c FrameMgr.c UIMgr.c UartInterface.c I2CInterface.c CamConfig.c Utility.c DebugInterface.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 = CamInterfaceAsm.S

# Optional compiler flags.

#  -g:        generate debugging information (for GDB, or for COFF conversion)

#  -O*:       optimization level

#  -f...:     tuning, see gcc manual and avr-libc documentation

#  -Wall...:  warning level

#  -Wa,...:   tell GCC to pass this to the assembler.

#    -ahlms:  create assembler listing

CFLAGS = -g -O$(OPT) \

	-funsigned-char -funsigned-bitfields -fpack-struct -fshort-enums \

	-Wall -Wstrict-prototypes \

	-Wa,-ahlms=$(<:.c=.lst) 

# Optional 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,-ahlms=$(<:.S=.lst),-gstabs

# Optional 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,--section-start=.noinit=0x800300

#LDFLAGS = -Wl,-Map=$(TARGET).map,--cref,--section-start=.john=0x800200

# Additional libraries

#

# Minimalistic printf version

#LDFLAGS += -Wl,-u,vfprintf -lprintf_min

#

# Floating point printf version (requires -lm below)

#LDFLAGS +=  -Wl,-u,vfprintf -lprintf_flt

#

# -lm = math library

LDFLAGS += -lm

# Programming support using avrdude. Settings and variables.

# Programming hardware: avrisp stk500 avr910 pavr stk200 pony-stk200

#                       dt006 bascom alf

# Type: avrdude -c ?

# to get a full listing.

#

AVRDUDE_PROGRAMMER = dapa

#AVRDUDE_PORT = com1	   	# programmer connected to serial device

AVRDUDE_PORT = /dev/parport0			# programmer connected to parallel port

AVRDUDE_ERASE = -e

AVRDUDE_FLAGS = -p $(MCU) -P $(AVRDUDE_PORT) -c $(AVRDUDE_PROGRAMMER)

# 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 += -y

#

# Uncomment the following if you do /not/ wish a verification to be

# performed after programming the device.

#AVRDUDE_FLAGS += -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_FLAGS += -v -v

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

# 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

# Programming support using avrdude.

AVRDUDE = avrdude

REMOVE = rm -f

COPY = cp

HEXSIZE = $(SIZE) --target=$(FORMAT) $(TARGET).hex

ELFSIZE = $(SIZE) -A $(TARGET).elf

FINISH = echo Errors: none

BEGIN = echo -------- begin --------

END = echo --------  end  --------

# 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: begin gccversion sizebefore $(TARGET).elf $(TARGET).hex $(TARGET).eep \

	$(TARGET).lss coff sizeafter finished end

# 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:

	@$(BEGIN)

finished:

	@$(FINISH)

end:

	@$(END)

# Display size of file.

sizebefore:

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

sizeafter:

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

# Display compiler version information.

gccversion :

	$(CC) --version

# 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).cof

extcoff: $(TARGET).elf

	$(COFFCONVERT) -O coff-ext-avr $< $(TARGET).cof

# Program the device.  The magic trickery below examines the .eep hex

# file whether the size is > 0, and if so, reprograms the EEPROM as

# well.  Just delete these lines if you don't want this feature (like

# on the ATmegas with the EESAVE fuse bit set).

program: $(TARGET).hex $(TARGET).eep

	$(AVRDUDE) $(AVRDUDE_FLAGS) $(AVRDUDE_ERASE)

	$(AVRDUDE) $(AVRDUDE_FLAGS) -i $(TARGET).hex

	@$(SIZE) --target=$(FORMAT) $(TARGET).eep | while read line; \

	do \

		set -- $$line; \

		if [ "x$$1" != "x0" ] ; then continue; fi; \

		if [ "$$2" -ne 0 ] ; then \

			echo $(AVRDUDE) $(AVRDUDE_FLAGS) -m eeprom -i $(TARGET).eep; \

			$(AVRDUDE) $(AVRDUDE_FLAGS) -m eeprom -i $(TARGET).eep; \

			break; \

		fi; \

	done

# Create final output files (.hex, .eep) from ELF output file.

%.hex: %.elf

	$(OBJCOPY) -O $(FORMAT) -R .eeprom $< $@

%.eep: %.elf

	-$(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

	$(OBJDUMP) -h -S $< > $@

# Link: create ELF output file from object files.

.SECONDARY : $(TARGET).elf

.PRECIOUS : $(OBJ)

%.elf: $(OBJ)

	$(CC) $(ALL_CFLAGS) $(OBJ) --output $@ $(LDFLAGS)

# Compile: create object files from C source files.

%.o : %.c

	$(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

	$(CC) -c $(ALL_ASFLAGS) $< -o $@

# Target: clean project.

clean: begin clean_list finished end

clean_list :

	$(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)

# Automatically generate C source code dependencies.

# (Code originally taken from the GNU make user manual and modified

# (See README.txt Credits).)

#

# Note that this will work with sh (bash) and sed that is shipped with WinAVR

# (see the SHELL variable defined above).

# This may not work with other shells or other seds.

#

%.d: %.c

	set -e; $(CC) -MM $(ALL_CFLAGS) $< \

	| sed 's,\(.*\)\.o[ :]*,\1.o \1.d : ,g' > $@; \

	[ -s $@ ] || rm -f $@

# Remove the '-' if you want to see the dependency files generated.

-include $(SRC:.c=.d)

# Listing of phony targets.

.PHONY : all begin finish end sizebefore sizeafter gccversion coff extcoff \

	clean clean_list program