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+# Makefile
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+#
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+# On command line:
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+#
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+# make all = Make software.
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+#
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+# make clean = Clean out built project files.
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+#
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+# make coff = Convert ELF to AVR COFF (for use with AVR Studio 3.x or VMLAB).
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+#
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+# make extcoff = Convert ELF to AVR Extended COFF (for use with AVR Studio
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+# 4.07 or greater).
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+#
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+# make program = Download the hex file to the device, using avrdude. Please
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+# customize the avrdude settings below first!
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+#
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+# make filename.s = Just compile filename.c into the assembler code only
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+#
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+# To rebuild project do "make clean" then "make all".
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+#
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+
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+
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+# MCU name
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+MCU = atmega8
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+
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+# Main Oscillator Frequency
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+# This is only used to define F_OSC in all assembler and c-sources.
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+F_CPU = 16000000
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+
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+# Output format. (can be srec, ihex, binary)
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+FORMAT = ihex
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+
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+# Target file name (without extension).
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+TARGET = main
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+
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+
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+# List C source files here. (C dependencies are automatically generated.)
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+SRC = $(TARGET).c
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+#SRC += uart.c # Additional Source-File
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+
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+# List Assembler source files here.
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+# Make them always end in a capital .S. Files ending in a lowercase .s
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+# will not be considered source files but generated files (assembler
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+# output from the compiler), and will be deleted upon "make clean"!
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+# Even though the DOS/Win* filesystem matches both .s and .S the same,
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+# it will preserve the spelling of the filenames, and gcc itself does
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+# care about how the name is spelled on its command-line.
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+ASRC =
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+
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+
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+
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+# Optimization level, can be [0, 1, 2, 3, s].
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+# 0 = turn off optimization. s = optimize for size.
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+# (Note: 3 is not always the best optimization level. See avr-libc FAQ.)
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+OPT = s
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+
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+# Debugging format.
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+# Native formats for AVR-GCC's -g are stabs [default], or dwarf-2.
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+# AVR (extended) COFF requires stabs, plus an avr-objcopy run.
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+#DEBUG = stabs
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+DEBUG = dwarf-2
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+
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+# List any extra directories to look for include files here.
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+# Each directory must be seperated by a space.
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+EXTRAINCDIRS =
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+
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+
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+# Compiler flag to set the C Standard level.
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+# c89 - "ANSI" C
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+# gnu89 - c89 plus GCC extensions
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+# c99 - ISO C99 standard (not yet fully implemented)
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+# gnu99 - c99 plus GCC extensions
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+CSTANDARD = -std=gnu99
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+
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+# Place -D or -U options here
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+CDEFS =
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+
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+# Place -I options here
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+CINCS =
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+
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+
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+# Compiler flags.
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+# -g*: generate debugging information
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+# -O*: optimization level
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+# -f...: tuning, see GCC manual and avr-libc documentation
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+# -Wall...: warning level
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+# -Wa,...: tell GCC to pass this to the assembler.
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+# -adhlns...: create assembler listing
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+CFLAGS = -g$(DEBUG)
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+CFLAGS += $(CDEFS) $(CINCS)
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+CFLAGS += -O$(OPT)
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+CFLAGS += -funsigned-char -funsigned-bitfields -fpack-struct -fshort-enums
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+CFLAGS += -Wall -Wstrict-prototypes
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+CFLAGS += -Wa,-adhlns=$(<:.c=.lst)
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+CFLAGS += $(patsubst %,-I%,$(EXTRAINCDIRS))
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+CFLAGS += $(CSTANDARD)
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+CFLAGS += -DF_CPU=$(F_CPU)
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+
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+
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+
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+# Assembler flags.
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+# -Wa,...: tell GCC to pass this to the assembler.
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+# -ahlms: create listing
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+# -gstabs: have the assembler create line number information; note that
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+# for use in COFF files, additional information about filenames
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+# and function names needs to be present in the assembler source
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+# files -- see avr-libc docs [FIXME: not yet described there]
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+ASFLAGS = -Wa,-adhlns=$(<:.S=.lst),-gstabs
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+ASFLAGS += -DF_CPU=$(F_CPU)
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+
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+
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+#Additional libraries.
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+
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+# Minimalistic printf version
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+PRINTF_LIB_MIN = -Wl,-u,vfprintf -lprintf_min
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+
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+# Floating point printf version (requires MATH_LIB = -lm below)
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+PRINTF_LIB_FLOAT = -Wl,-u,vfprintf -lprintf_flt
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+
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+PRINTF_LIB =
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+
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+# Minimalistic scanf version
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+SCANF_LIB_MIN = -Wl,-u,vfscanf -lscanf_min
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+
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+# Floating point + %[ scanf version (requires MATH_LIB = -lm below)
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+SCANF_LIB_FLOAT = -Wl,-u,vfscanf -lscanf_flt
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+
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+SCANF_LIB =
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+
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+MATH_LIB = -lm
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+
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+# External memory options
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+
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+# 64 KB of external RAM, starting after internal RAM (ATmega128!),
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+# used for variables (.data/.bss) and heap (malloc()).
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+#EXTMEMOPTS = -Wl,-Tdata=0x801100,--defsym=__heap_end=0x80ffff
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+
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+# 64 KB of external RAM, starting after internal RAM (ATmega128!),
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+# only used for heap (malloc()).
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+#EXTMEMOPTS = -Wl,--defsym=__heap_start=0x801100,--defsym=__heap_end=0x80ffff
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+
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+EXTMEMOPTS =
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+
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+# Linker flags.
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+# -Wl,...: tell GCC to pass this to linker.
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+# -Map: create map file
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+# --cref: add cross reference to map file
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+LDFLAGS = -Wl,-Map=$(TARGET).map,--cref
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+LDFLAGS += $(EXTMEMOPTS)
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+LDFLAGS += $(PRINTF_LIB) $(SCANF_LIB) $(MATH_LIB)
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+
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+
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+
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+
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+# Programming support using avrdude. Settings and variables.
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+
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+# Programming hardware: alf avr910 avrisp bascom bsd
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+# dt006 pavr picoweb pony-stk200 sp12 stk200 stk500
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+#
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+# Type: avrdude -c ?
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+# to get a full listing.
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+#
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+AVRDUDE_PROGRAMMER = stk500
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+
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+# com1 = serial port. Use lpt1 to connect to parallel port.
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+AVRDUDE_PORT = com1 # programmer connected to serial device
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+
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+AVRDUDE_WRITE_FLASH = -U flash:w:$(TARGET).hex
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+#AVRDUDE_WRITE_EEPROM = -U eeprom:w:$(TARGET).eep
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+
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+
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+# Uncomment the following if you want avrdude's erase cycle counter.
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+# Note that this counter needs to be initialized first using -Yn,
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+# see avrdude manual.
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+#AVRDUDE_ERASE_COUNTER = -y
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+
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+# Uncomment the following if you do /not/ wish a verification to be
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+# performed after programming the device.
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+#AVRDUDE_NO_VERIFY = -V
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+
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+# Increase verbosity level. Please use this when submitting bug
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+# reports about avrdude. See <http://savannah.nongnu.org/projects/avrdude>
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+# to submit bug reports.
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+#AVRDUDE_VERBOSE = -v -v
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+
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+AVRDUDE_FLAGS = -p $(MCU) -P $(AVRDUDE_PORT) -c $(AVRDUDE_PROGRAMMER)
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+AVRDUDE_FLAGS += $(AVRDUDE_NO_VERIFY)
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+AVRDUDE_FLAGS += $(AVRDUDE_VERBOSE)
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+AVRDUDE_FLAGS += $(AVRDUDE_ERASE_COUNTER)
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+
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+
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+
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+# ---------------------------------------------------------------------------
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+
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+# Define directories, if needed.
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+DIRAVR = /usr/local/CrossPack-AVR
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+DIRAVRBIN = $(DIRAVR)/bin
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+DIRAVRUTILS = $(DIRAVR)/bin
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+DIRINC = .
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+DIRLIB = $(DIRAVR)/lib
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+
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+
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+# Define programs and commands.
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+SHELL = bash
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+CC = avr-gcc
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+OBJCOPY = avr-objcopy
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+OBJDUMP = avr-objdump
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+SIZE = avr-size
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+NM = avr-nm
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+AVRDUDE = avrdude
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+REMOVE = rm -f
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+COPY = cp
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+
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+
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+
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+
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+# Define Messages
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+# English
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+MSG_ERRORS_NONE = Errors: none
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+MSG_BEGIN = -------- begin --------
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+MSG_END = -------- end --------
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+MSG_SIZE_BEFORE = Size before:
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+MSG_SIZE_AFTER = Size after:
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+MSG_COFF = Converting to AVR COFF:
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+MSG_EXTENDED_COFF = Converting to AVR Extended COFF:
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+MSG_FLASH = Creating load file for Flash:
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+MSG_EEPROM = Creating load file for EEPROM:
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+MSG_EXTENDED_LISTING = Creating Extended Listing:
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+MSG_SYMBOL_TABLE = Creating Symbol Table:
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+MSG_LINKING = Linking:
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+MSG_COMPILING = Compiling:
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+MSG_ASSEMBLING = Assembling:
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+MSG_CLEANING = Cleaning project:
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+
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+
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+
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+
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+# Define all object files.
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+OBJ = $(SRC:.c=.o) $(ASRC:.S=.o)
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+
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+# Define all listing files.
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+LST = $(ASRC:.S=.lst) $(SRC:.c=.lst)
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+
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+
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+# Compiler flags to generate dependency files.
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+### GENDEPFLAGS = -Wp,-M,-MP,-MT,$(*F).o,-MF,.dep/$(@F).d
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+GENDEPFLAGS = -MD -MP -MF .dep/$(@F).d
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+
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+# Combine all necessary flags and optional flags.
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+# Add target processor to flags.
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+ALL_CFLAGS = -mmcu=$(MCU) -I. $(CFLAGS) $(GENDEPFLAGS)
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+ALL_ASFLAGS = -mmcu=$(MCU) -I. -x assembler-with-cpp $(ASFLAGS)
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+
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+
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+
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+
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+
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+# Default target.
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+all: begin gccversion sizebefore build sizeafter finished end
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+
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+build: elf hex eep lss sym
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+
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+elf: $(TARGET).elf
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+hex: $(TARGET).hex
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+eep: $(TARGET).eep
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+lss: $(TARGET).lss
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+sym: $(TARGET).sym
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+
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+
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+
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+# Eye candy.
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+# AVR Studio 3.x does not check make's exit code but relies on
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+# the following magic strings to be generated by the compile job.
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+begin:
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+ @echo
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+ @echo $(MSG_BEGIN)
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+
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+finished:
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+ @echo $(MSG_ERRORS_NONE)
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+
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+end:
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+ @echo $(MSG_END)
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+ @echo
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+
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+
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+# Display size of file.
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+HEXSIZE = $(SIZE) --target=$(FORMAT) $(TARGET).hex
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+ELFSIZE = $(SIZE) -A $(TARGET).elf
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+sizebefore:
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+ @if [ -f $(TARGET).elf ]; then echo; echo $(MSG_SIZE_BEFORE); $(ELFSIZE); echo; fi
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+
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+sizeafter:
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+ @if [ -f $(TARGET).elf ]; then echo; echo $(MSG_SIZE_AFTER); $(ELFSIZE); echo; fi
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+
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+
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+
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+# Display compiler version information.
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+gccversion :
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+ @$(CC) --version
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+
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+
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+
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+# Program the device.
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+program: $(TARGET).hex $(TARGET).eep
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+ $(AVRDUDE) $(AVRDUDE_FLAGS) $(AVRDUDE_WRITE_FLASH) $(AVRDUDE_WRITE_EEPROM)
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+
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+
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+
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+
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+# Convert ELF to COFF for use in debugging / simulating in AVR Studio or VMLAB.
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+COFFCONVERT=$(OBJCOPY) --debugging \
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+--change-section-address .data-0x800000 \
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+--change-section-address .bss-0x800000 \
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+--change-section-address .noinit-0x800000 \
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+--change-section-address .eeprom-0x810000
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+
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+
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+coff: $(TARGET).elf
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+ @echo
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+ @echo $(MSG_COFF) $(TARGET).cof
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+ $(COFFCONVERT) -O coff-avr $< $(TARGET).cof
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+
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+
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+extcoff: $(TARGET).elf
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+ @echo
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+ @echo $(MSG_EXTENDED_COFF) $(TARGET).cof
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+ $(COFFCONVERT) -O coff-ext-avr $< $(TARGET).cof
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+
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+
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+
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+# Create final output files (.hex, .eep) from ELF output file.
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+%.hex: %.elf
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+ @echo
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+ @echo $(MSG_FLASH) $@
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+ $(OBJCOPY) -O $(FORMAT) -R .eeprom $< $@
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+
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+%.eep: %.elf
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+ @echo
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+ @echo $(MSG_EEPROM) $@
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+ -$(OBJCOPY) -j .eeprom --set-section-flags=.eeprom="alloc,load" \
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+ --change-section-lma .eeprom=0 -O $(FORMAT) $< $@
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+
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+# Create extended listing file from ELF output file.
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+%.lss: %.elf
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+ @echo
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+ @echo $(MSG_EXTENDED_LISTING) $@
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+ $(OBJDUMP) -h -S $< > $@
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+
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+# Create a symbol table from ELF output file.
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+%.sym: %.elf
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+ @echo
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+ @echo $(MSG_SYMBOL_TABLE) $@
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+ $(NM) -n $< > $@
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+
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+
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+
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+# Link: create ELF output file from object files.
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358
|
+.SECONDARY : $(TARGET).elf
|
|
359
|
+.PRECIOUS : $(OBJ)
|
|
360
|
+%.elf: $(OBJ)
|
|
361
|
+ @echo
|
|
362
|
+ @echo $(MSG_LINKING) $@
|
|
363
|
+ $(CC) $(ALL_CFLAGS) $(OBJ) --output $@ $(LDFLAGS)
|
|
364
|
+
|
|
365
|
+
|
|
366
|
+# Compile: create object files from C source files.
|
|
367
|
+%.o : %.c
|
|
368
|
+ @echo
|
|
369
|
+ @echo $(MSG_COMPILING) $<
|
|
370
|
+ $(CC) -c $(ALL_CFLAGS) $< -o $@
|
|
371
|
+
|
|
372
|
+
|
|
373
|
+# Compile: create assembler files from C source files.
|
|
374
|
+%.s : %.c
|
|
375
|
+ $(CC) -S $(ALL_CFLAGS) $< -o $@
|
|
376
|
+
|
|
377
|
+
|
|
378
|
+# Assemble: create object files from assembler source files.
|
|
379
|
+%.o : %.S
|
|
380
|
+ @echo
|
|
381
|
+ @echo $(MSG_ASSEMBLING) $<
|
|
382
|
+ $(CC) -c $(ALL_ASFLAGS) $< -o $@
|
|
383
|
+
|
|
384
|
+
|
|
385
|
+
|
|
386
|
+# Target: clean project.
|
|
387
|
+clean: begin clean_list finished end
|
|
388
|
+
|
|
389
|
+clean_list :
|
|
390
|
+ @echo
|
|
391
|
+ @echo $(MSG_CLEANING)
|
|
392
|
+ $(REMOVE) $(TARGET).hex
|
|
393
|
+ $(REMOVE) $(TARGET).eep
|
|
394
|
+ $(REMOVE) $(TARGET).obj
|
|
395
|
+ $(REMOVE) $(TARGET).cof
|
|
396
|
+ $(REMOVE) $(TARGET).elf
|
|
397
|
+ $(REMOVE) $(TARGET).map
|
|
398
|
+ $(REMOVE) $(TARGET).obj
|
|
399
|
+ $(REMOVE) $(TARGET).a90
|
|
400
|
+ $(REMOVE) $(TARGET).sym
|
|
401
|
+ $(REMOVE) $(TARGET).lnk
|
|
402
|
+ $(REMOVE) $(TARGET).lss
|
|
403
|
+ $(REMOVE) $(OBJ)
|
|
404
|
+ $(REMOVE) $(LST)
|
|
405
|
+ $(REMOVE) $(SRC:.c=.s)
|
|
406
|
+ $(REMOVE) $(SRC:.c=.d)
|
|
407
|
+ $(REMOVE) .dep/*
|
|
408
|
+
|
|
409
|
+
|
|
410
|
+
|
|
411
|
+# Include the dependency files.
|
|
412
|
+-include $(shell mkdir .dep 2>/dev/null) $(wildcard .dep/*)
|
|
413
|
+
|
|
414
|
+
|
|
415
|
+# Listing of phony targets.
|
|
416
|
+.PHONY : all begin finish end sizebefore sizeafter gccversion \
|
|
417
|
+build elf hex eep lss sym coff extcoff \
|
|
418
|
+clean clean_list program
|
|
419
|
+
|