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# Hey Emacs, this is a -*- makefile -*-

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

# WinAVR Makefile Template written by Eric B. Weddington, Jörg Wunsch, et al.

#

# Released to the Public Domain

#

# Additional material for this makefile was written by:

# Peter Fleury

# Tim Henigan

# Colin O'Flynn

# Reiner Patommel

# Markus Pfaff

# Sander Pool

# Frederik Rouleau

# Carlos Lamas

#

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

# On command line:

#

# make all = Make software.

#

# make clean = Clean out built project files.

#

# make coff = Convert ELF to AVR COFF.

#

# make extcoff = Convert ELF to AVR Extended COFF.

#

# make program = Download the hex file to the device, using avrdude.

#                Please customize the avrdude settings below first!

#

# make debug = Start either simulavr or avarice as specified for debugging,

#              with avr-gdb or avr-insight as the front end for debugging.

#

# make filename.s = Just compile filename.c into the assembler code only.

#

# make filename.i = Create a preprocessed source file for use in submitting

#                   bug reports to the GCC project.

#

# To rebuild project do "make clean" then "make all".

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

# MCU name

MCU = atmega128

# Processor frequency.

#     This will define a symbol, F_CPU, in all source code files equal to the

#     processor frequency. You can then use this symbol in your source code to

#     calculate timings. Do NOT tack on a 'UL' at the end, this will be done

#     automatically to create a 32-bit value in your source code.

#     Typical values are:

#         F_CPU =  1000000

#         F_CPU =  1843200

#         F_CPU =  2000000

#         F_CPU =  3686400

#         F_CPU =  4000000

#         F_CPU =  7372800

#         F_CPU =  8000000

#         F_CPU = 11059200

#         F_CPU = 14745600

#         F_CPU = 16000000

#         F_CPU = 18432000

#         F_CPU = 20000000

F_CPU = 8000000

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

FORMAT = ihex

# Target file name (without extension).

TARGET = busmaster

# Object files directory

OBJDIR = obj

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

SRC = uart.c busmaster.c main.c

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

CPPSRC =

# 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 =

# 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

# Debugging format.

#     Native formats for AVR-GCC's -g are dwarf-2 [default] or stabs.

#     AVR Studio 4.10 requires dwarf-2.

#     AVR [Extended] COFF format requires stabs, plus an avr-objcopy run.

DEBUG = dwarf-2

# List any extra directories to look for include files here.

#     Each directory must be seperated by a space.

#     Use forward slashes for directory separators.

#     For a directory that has spaces, enclose it in quotes.

EXTRAINCDIRS =

# 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 for C sources

CDEFS = -DF_CPU=$(F_CPU)UL

# Place -D or -U options here for C++ sources

CPPDEFS = -DF_CPU=$(F_CPU)UL

#CPPDEFS += -D__STDC_LIMIT_MACROS

#CPPDEFS += -D__STDC_CONSTANT_MACROS

#---------------- Compiler Options C ----------------

#  -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$(DEBUG)

CFLAGS += $(CDEFS)

CFLAGS += -O$(OPT)

#CFLAGS += -mint8

#CFLAGS += -mshort-calls

CFLAGS += -funsigned-char

CFLAGS += -funsigned-bitfields

CFLAGS += -fpack-struct

CFLAGS += -fshort-enums

#CFLAGS += -fno-unit-at-a-time

CFLAGS += -Wall

CFLAGS += -Wstrict-prototypes

CFLAGS += -Wundef

#CFLAGS += -Wunreachable-code

#CFLAGS += -Wsign-compare

CFLAGS += -Wa,-adhlns=$(<:%.c=$(OBJDIR)/%.lst)

CFLAGS += $(patsubst %,-I%,$(EXTRAINCDIRS))

CFLAGS += $(CSTANDARD)

#---------------- Compiler Options C++ ----------------

#  -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

CPPFLAGS = -g$(DEBUG)

CPPFLAGS += $(CPPDEFS)

CPPFLAGS += -O$(OPT)

#CPPFLAGS += -mint8

#CPPFLAGS += -mshort-calls

CPPFLAGS += -funsigned-char

CPPFLAGS += -funsigned-bitfields

CPPFLAGS += -fpack-struct

CPPFLAGS += -fshort-enums

CPPFLAGS += -fno-exceptions

#CPPFLAGS += -fno-unit-at-a-time

CPPFLAGS += -Wall

#CPPFLAGS += -Wstrict-prototypes

CFLAGS += -Wundef

#CPPFLAGS += -Wunreachable-code

#CPPFLAGS += -Wsign-compare

CPPFLAGS += -Wa,-adhlns=$(<:%.cpp=$(OBJDIR)/%.lst)

CPPFLAGS += $(patsubst %,-I%,$(EXTRAINCDIRS))

#CPPFLAGS += $(CSTANDARD)

#---------------- Assembler Options ----------------

#  -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=$(<:%.S=$(OBJDIR)/%.lst),-gstabs

#---------------- Library Options ----------------

# 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

# If this is left blank, then it will use the Standard printf version.

PRINTF_LIB =

#PRINTF_LIB = $(PRINTF_LIB_MIN)

PRINTF_LIB = $(PRINTF_LIB_FLOAT)

# 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

# If this is left blank, then it will use the Standard scanf version.

SCANF_LIB =

#SCANF_LIB = $(SCANF_LIB_MIN)

#SCANF_LIB = $(SCANF_LIB_FLOAT)

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 =

#---------------- Linker Options ----------------

#  -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

LDFLAGS += $(EXTMEMOPTS)

LDFLAGS += $(PRINTF_LIB) $(SCANF_LIB) $(MATH_LIB)

#LDFLAGS += -T linker_script.x

#---------------- Programming Options (avrdude) ----------------

# 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 = stk500

# com1 = serial port. Use lpt1 to connect to parallel port.

AVRDUDE_PORT = com1    # programmer connected to serial device

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 

# 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)

#---------------- Debugging Options ----------------

# For simulavr only - target MCU frequency.

DEBUG_MFREQ = $(F_CPU)

# Set the DEBUG_UI to either gdb or insight.

# DEBUG_UI = gdb

DEBUG_UI = insight

# Set the debugging back-end to either avarice, simulavr.

DEBUG_BACKEND = avarice

#DEBUG_BACKEND = simulavr

# GDB Init Filename.

GDBINIT_FILE = __avr_gdbinit

# When using avarice settings for the JTAG

JTAG_DEV = /dev/com1

# Debugging port used to communicate between GDB / avarice / simulavr.

DEBUG_PORT = 4242

# Debugging host used to communicate between GDB / avarice / simulavr, normally

#     just set to localhost unless doing some sort of crazy debugging when

#     avarice is running on a different computer.

DEBUG_HOST = localhost

#============================================================================

# 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

REMOVEDIR = rm -rf

COPY = cp

WINSHELL = cmd

# 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 C:

MSG_COMPILING_CPP = Compiling C++:

MSG_ASSEMBLING = Assembling:

MSG_CLEANING = Cleaning project:

MSG_CREATING_LIBRARY = Creating library:

# Define all object files.

OBJ = $(SRC:%.c=$(OBJDIR)/%.o) $(CPPSRC:%.cpp=$(OBJDIR)/%.o) $(ASRC:%.S=$(OBJDIR)/%.o)

# Define all listing files.

LST = $(SRC:%.c=$(OBJDIR)/%.lst) $(CPPSRC:%.cpp=$(OBJDIR)/%.lst) $(ASRC:%.S=$(OBJDIR)/%.lst)

# Compiler flags to generate dependency files.

GENDEPFLAGS = -MD -MP -MF .dep/$(@F).d

# Combine all necessary flags and optional flags.

# Add target processor to flags.

ALL_CFLAGS = -mmcu=$(MCU) -I. $(CFLAGS) $(GENDEPFLAGS)

ALL_CPPFLAGS = -mmcu=$(MCU) -I. -x c++ $(CPPFLAGS) $(GENDEPFLAGS)

ALL_ASFLAGS = -mmcu=$(MCU) -I. -x assembler-with-cpp $(ASFLAGS)

# Default target.

all: begin gccversion sizebefore build sizeafter end

# Change the build target to build a HEX file or a library.

build: elf hex eep lss sym

#build: lib

elf: $(TARGET).elf

hex: $(TARGET).hex

eep: $(TARGET).eep

lss: $(TARGET).lss

sym: $(TARGET).sym

LIBNAME=lib$(TARGET).a

lib: $(LIBNAME)

# 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)

end:

        @echo $(MSG_END)

        @echo

# Display size of file.

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

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

AVRMEM = avr-mem.sh $(TARGET).elf $(MCU)

sizebefore:

        @if test -f $(TARGET).elf; then echo; echo $(MSG_SIZE_BEFORE); $(ELFSIZE); \

        $(AVRMEM) 2>/dev/null; echo; fi

sizeafter:

        @if test -f $(TARGET).elf; then echo; echo $(MSG_SIZE_AFTER); $(ELFSIZE); \

        $(AVRMEM) 2>/dev/null; echo; fi

# Display compiler version information.

gccversion :

        @$(CC) --version

# Program the device.

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

        $(AVRDUDE) $(AVRDUDE_FLAGS) $(AVRDUDE_WRITE_FLASH) $(AVRDUDE_WRITE_EEPROM)

# Generate avr-gdb config/init file which does the following:

#     define the reset signal, load the target file, connect to target, and set

#     a breakpoint at main().

gdb-config:

        @$(REMOVE) $(GDBINIT_FILE)

        @echo define reset >> $(GDBINIT_FILE)

        @echo SIGNAL SIGHUP >> $(GDBINIT_FILE)

        @echo end >> $(GDBINIT_FILE)

        @echo file $(TARGET).elf >> $(GDBINIT_FILE)

        @echo target remote $(DEBUG_HOST):$(DEBUG_PORT)  >> $(GDBINIT_FILE)

ifeq ($(DEBUG_BACKEND),simulavr)

        @echo load  >> $(GDBINIT_FILE)

endif

        @echo break main >> $(GDBINIT_FILE)

debug: gdb-config $(TARGET).elf

ifeq ($(DEBUG_BACKEND), avarice)

        @echo Starting AVaRICE - Press enter when "waiting to connect" message displays.

        @$(WINSHELL) /c start avarice --jtag $(JTAG_DEV) --erase --program --file \

        $(TARGET).elf $(DEBUG_HOST):$(DEBUG_PORT)

        @$(WINSHELL) /c pause

else

        @$(WINSHELL) /c start simulavr --gdbserver --device $(MCU) --clock-freq \

        $(DEBUG_MFREQ) --port $(DEBUG_PORT)

endif

        @$(WINSHELL) /c start avr-$(DEBUG_UI) --command=$(GDBINIT_FILE)

# Convert ELF to COFF for use in debugging / simulating in AVR Studio or VMLAB.

COFFCONVERT = $(OBJCOPY) --debugging

COFFCONVERT += --change-section-address .data-0x800000

COFFCONVERT += --change-section-address .bss-0x800000

COFFCONVERT += --change-section-address .noinit-0x800000

COFFCONVERT += --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 $< > $@

# Create library from object files.

.SECONDARY : $(TARGET).a

.PRECIOUS : $(OBJ)

%.a: $(OBJ)

        @echo

        @echo $(MSG_CREATING_LIBRARY) $@

        $(AR) $@ $(OBJ)

# Link: create ELF output file from object files.

.SECONDARY : $(TARGET).elf

.PRECIOUS : $(OBJ)

%.elf: $(OBJ)

        @echo

        @echo $(MSG_LINKING) $@

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

# Compile: create object files from C source files.

$(OBJDIR)/%.o : %.c

        @echo

        @echo $(MSG_COMPILING) $<

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

# Compile: create object files from C++ source files.

$(OBJDIR)/%.o : %.cpp

        @echo

        @echo $(MSG_COMPILING_CPP) $<

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

# Compile: create assembler files from C source files.

%.s : %.c

        $(CC) -S $(ALL_CFLAGS) $< -o $@

# Compile: create assembler files from C++ source files.

%.s : %.cpp

        $(CC) -S $(ALL_CPPFLAGS) $< -o $@

# Assemble: create object files from assembler source files.

$(OBJDIR)/%.o : %.S

        @echo

        @echo $(MSG_ASSEMBLING) $<

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

# Create preprocessed source for use in sending a bug report.

%.i : %.c

        $(CC) -E -mmcu=$(MCU) -I. $(CFLAGS) $< -o $@

# Target: clean project.

clean: begin clean_list end

clean_list :

        @echo

        @echo $(MSG_CLEANING)

        $(REMOVE) $(TARGET).hex

        $(REMOVE) $(TARGET).eep

        $(REMOVE) $(TARGET).cof

        $(REMOVE) $(TARGET).elf

        $(REMOVE) $(TARGET).map

        $(REMOVE) $(TARGET).sym

        $(REMOVE) $(TARGET).lss

        $(REMOVEDIR) $(OBJDIR)

        $(REMOVE) $(SRC:.c=.s)

        $(REMOVE) $(SRC:.c=.d)

        $(REMOVEDIR) .dep

# Create object files directory

$(shell mkdir $(OBJDIR) 2>/dev/null)

# 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 debug gdb-config