Rework Makefile
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Rihards Skuja
parent
71c417446b
commit
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8
.gitignore
vendored
8
.gitignore
vendored
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@ -1,6 +1,3 @@
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# Created by https://www.gitignore.io/api/c
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### C ###
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# Prerequisites
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*.d
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@ -55,7 +52,4 @@ Module.symvers
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Mkfile.old
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dkms.conf
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# End of https://www.gitignore.io/api/c
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#
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default/*
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!default/Makefile
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*.eep
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@ -3,5 +3,4 @@ before_install:
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- sudo apt-get update -qq
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install:
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- sudo apt-get install -qq gcc-avr binutils-avr avr-libc
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before_script: cd default
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script: make
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221
Makefile
Normal file
221
Makefile
Normal file
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@ -0,0 +1,221 @@
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# AVR-GCC Makefile template, derived from the WinAVR template (which
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# is public domain), believed to be neutral to any flavor of "make"
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# (GNU make, BSD make, SysV make)
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MCU = atmega328p
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FORMAT = ihex
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TARGET = main
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SRC = $(TARGET).c
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ASRC =
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OPT = s
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# Name of this Makefile (used for "make depend").
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MAKEFILE = Makefile
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# Debugging format.
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# Native formats for AVR-GCC's -g are stabs [default], or dwarf-2.
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# AVR (extended) COFF requires stabs, plus an avr-objcopy run.
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DEBUG = stabs
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# Compiler flag to set the C Standard level.
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# c89 - "ANSI" C
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# gnu89 - c89 plus GCC extensions
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# c99 - ISO C99 standard (not yet fully implemented)
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# gnu99 - c99 plus GCC extensions
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CSTANDARD = -std=gnu99
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# Place -D or -U options here
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CDEFS = -DF_CPU=16000000L -D__AVR__ -D__AVR_ATmega328P__
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# Place -I options here
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CINCS =
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CDEBUG = -g$(DEBUG)
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CWARN = -Wall -Wextra -Wstrict-prototypes
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CTUNING = -funsigned-char -funsigned-bitfields -fpack-struct -fshort-enums
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#CEXTRA = -Wa,-adhlns=$(<:.c=.lst)
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CFLAGS = $(CDEBUG) $(CDEFS) $(CINCS) -O$(OPT) $(CWARN) $(CSTANDARD) $(CEXTRA)
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#ASFLAGS = -Wa,-adhlns=$(<:.S=.lst),-gstabs
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#Additional libraries.
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# Minimalistic printf version
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PRINTF_LIB_MIN = -Wl,-u,vfprintf -lprintf_min
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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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PRINTF_LIB =
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# Minimalistic scanf version
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SCANF_LIB_MIN = -Wl,-u,vfscanf -lscanf_min
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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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SCANF_LIB =
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MATH_LIB = -lm
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# External memory options
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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,--section-start,.data=0x801100,--defsym=__heap_end=0x80ffff
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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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EXTMEMOPTS =
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#LDMAP = $(LDFLAGS) -Wl,-Map=$(TARGET).map,--cref
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LDFLAGS = $(EXTMEMOPTS) $(LDMAP) $(PRINTF_LIB) $(SCANF_LIB) $(MATH_LIB)
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# Programming support using avrdude. Settings and variables.
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AVRDUDE_PROGRAMMER = usbasp
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AVRDUDE_PORT = usb
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AVRDUDE_WRITE_FLASH = -U flash:w:$(TARGET).hex
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#AVRDUDE_WRITE_EEPROM = -U eeprom:w:$(TARGET).eep
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# 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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# 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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# 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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AVRDUDE_BASIC = -p $(MCU) -P $(AVRDUDE_PORT) -c $(AVRDUDE_PROGRAMMER)
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AVRDUDE_FLAGS = $(AVRDUDE_BASIC) $(AVRDUDE_NO_VERIFY) $(AVRDUDE_VERBOSE) $(AVRDUDE_ERASE_COUNTER)
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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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MV = mv -f
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# Define all object files.
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OBJ = $(SRC:.c=.o) $(ASRC:.S=.o)
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# Define all listing files.
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LST = $(ASRC:.S=.lst) $(SRC:.c=.lst)
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# Combine all necessary flags and optional flags.
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# Add target processor to flags.
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ALL_CFLAGS = -mmcu=$(MCU) -I. $(CFLAGS)
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ALL_ASFLAGS = -mmcu=$(MCU) -I. -x assembler-with-cpp $(ASFLAGS)
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# Default target.
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all: build
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build: elf hex eep
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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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# Program the device.
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program: $(TARGET).hex $(TARGET).eep
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$(AVRDUDE) $(AVRDUDE_FLAGS) $(AVRDUDE_WRITE_FLASH) $(AVRDUDE_WRITE_EEPROM)
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# Convert ELF to COFF for use in debugging / simulating in AVR Studio or VMLAB.
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COFFCONVERT=$(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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coff: $(TARGET).elf
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$(COFFCONVERT) -O coff-avr $(TARGET).elf $(TARGET).cof
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extcoff: $(TARGET).elf
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$(COFFCONVERT) -O coff-ext-avr $(TARGET).elf $(TARGET).cof
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.SUFFIXES: .elf .hex .eep .lss .sym
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.elf.hex:
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$(OBJCOPY) -O $(FORMAT) -R .eeprom $< $@
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.elf.eep:
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-$(OBJCOPY) -j .eeprom --set-section-flags=.eeprom="alloc,load" \
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--change-section-lma .eeprom=0 -O $(FORMAT) $< $@
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# Create extended listing file from ELF output file.
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.elf.lss:
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$(OBJDUMP) -h -S $< > $@
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# Create a symbol table from ELF output file.
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.elf.sym:
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$(NM) -n $< > $@
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# Link: create ELF output file from object files.
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$(TARGET).elf: $(OBJ)
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$(CC) $(ALL_CFLAGS) $(OBJ) --output $@ $(LDFLAGS)
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# Compile: create object files from C source files.
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.c.o:
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$(CC) -c $(ALL_CFLAGS) $< -o $@
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# Compile: create assembler files from C source files.
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.c.s:
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$(CC) -S $(ALL_CFLAGS) $< -o $@
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# Assemble: create object files from assembler source files.
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.S.o:
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$(CC) -c $(ALL_ASFLAGS) $< -o $@
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# Target: clean project.
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clean:
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$(REMOVE) $(TARGET).hex $(TARGET).eep $(TARGET).cof $(TARGET).elf \
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$(TARGET).map $(TARGET).sym $(TARGET).lss \
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$(OBJ) $(LST) $(SRC:.c=.s) $(SRC:.c=.d)
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depend:
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if grep '^# DO NOT DELETE' $(MAKEFILE) >/dev/null; \
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then \
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sed -e '/^# DO NOT DELETE/,$$d' $(MAKEFILE) > \
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$(MAKEFILE).$$$$ && \
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$(MV) $(MAKEFILE).$$$$ $(MAKEFILE); \
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fi
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echo '# DO NOT DELETE THIS LINE -- make depend depends on it.' \
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>> $(MAKEFILE); \
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$(CC) -M -mmcu=$(MCU) $(CDEFS) $(CINCS) $(SRC) $(ASRC) >> $(MAKEFILE)
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.PHONY: all build elf hex eep lss sym program coff extcoff clean depend
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@ -1,79 +0,0 @@
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###############################################################################
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# Makefile for the project $(PROJECT)
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###############################################################################
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## General Flags
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PROJECT = main
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MCU = atmega328p
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TARGET = $(PROJECT).elf
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CC = avr-gcc
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CPP = avr-g++
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## Options common to compile, link and assembly rules
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COMMON = -mmcu=$(MCU)
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## Compile options common for all C compilation units.
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CFLAGS += -mmcu=atmega328p -DF_CPU=16000000L -D__AVR__ -D__AVR_ATmega328P__ \
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-std=gnu99 -Os -DDEBUG -gdwarf-2 \
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-Wall -Wextra -Wformat=2 -pedantic
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CFLAGS += -MD -MP -MT $(*F).o -MF dep/$(@F).d
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INC := -I /usr/avr/include
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## Assembly specific flags
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ASMFLAGS = $(COMMON)
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ASMFLAGS += $(CFLAGS)
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ASMFLAGS += -x assembler-with-cpp -Wa,-gdwarf2
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## Linker flags
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LDFLAGS = $(COMMON)
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LDFLAGS += -Wl,-Map=$(PROJECT).map
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## Intel Hex file production flags
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HEX_FLASH_FLAGS = -R .eeprom -R .fuse -R .lock -R .signature
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HEX_EEPROM_FLAGS = -j .eeprom
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HEX_EEPROM_FLAGS += --set-section-flags=.eeprom="alloc,load"
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HEX_EEPROM_FLAGS += --change-section-lma .eeprom=0 --no-change-warnings
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## Objects that must be built in order to link
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OBJECTS = $(PROJECT).o
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## Objects explicitly added by the user
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LINKONLYOBJECTS =
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## Build
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all: $(TARGET) $(PROJECT).hex $(PROJECT).eep $(PROJECT).lss size
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## Compile
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$(PROJECT).o: ../$(PROJECT).c
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$(CC) $(INC) $(CFLAGS) -c $<
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##Link
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$(TARGET): $(OBJECTS)
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$(CC) $(LDFLAGS) $(OBJECTS) $(LINKONLYOBJECTS) $(LIBDIRS) $(LIBS) -o $(TARGET)
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%.hex: $(TARGET)
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avr-objcopy -O ihex $(HEX_FLASH_FLAGS) $< $@
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%.eep: $(TARGET)
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-avr-objcopy $(HEX_EEPROM_FLAGS) -O ihex $< $@ || exit 0
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%.lss: $(TARGET)
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avr-objdump -h -S $< > $@
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size: ${TARGET}
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@echo
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@avr-size -C --mcu=${MCU} ${TARGET}
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## Clean target
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.PHONY: clean
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clean:
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-rm -rf $(OBJECTS) $(PROJECT).elf dep/* $(PROJECT).hex $(PROJECT).eep $(PROJECT).lss $(PROJECT).map
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## Other dependencies
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-include $(shell mkdir dep 2>/dev/null) $(wildcard dep/*)
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