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# AVR-GCC Makefile template, derived from the WinAVR template (which
# is public domain), believed to be neutral to any flavor of "make"
# (GNU make, BSD make, SysV make)
# Modifications by Gabriel Fornaeus,
MCU = atmega328
FORMAT = ihex
TARGET = main
SRC = $(TARGET).c ./usart.c ./adc.c ./utils.c ./motors.c ./linesensors.c ./startpin.c ./sidesensors.c ./switch.c ./timer.c ./leds.c
OPT = 2
HZ = 16000000
# Name of this Makefile (used for "make depend").
MAKEFILE = Makefile
# Debugging format.
# Native formats for AVR-GCC's -g are stabs [default], or dwarf-2.
# AVR (extended) COFF requires stabs, plus an avr-objcopy run.
DEBUG = stabs
# Compiler flag to set the C Standard level.
# c89 - "ANSI" C
# gnu89 - c89 plus GCC extensions
# c99 - ISO C99 standard (not yet fully implemented)
# gnu99 - c99 plus GCC extensions
CSTANDARD = -std=gnu99
# Place -D or -U options here
# Place -I options here
CWARN = -Wall -Wstrict-prototypes -Wpedantic -Wextra
CTUNING = -funsigned-char -funsigned-bitfields -fpack-struct -fshort-enums
CEXTRA = -Wa,-adhlns=$(<:.c=.lst)
#ASFLAGS = -Wa,-adhlns=$(<:.S=.lst),-gstabs
#Additional libraries.
# 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
# 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
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,--section-start,.data=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
#LDMAP = $(LDFLAGS) -Wl,-Map=$(TARGET).map,--cref
# Programming support using avrdude. Settings and variables.
# 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.
# Uncomment the following if you do /not/ wish a verification to be
# performed after programming the device.
# Increase verbosity level. Please use this when submitting bug
# reports about avrdude. See <>
# to submit bug reports.
CC = avr-gcc
OBJCOPY = avr-objcopy
OBJDUMP = avr-objdump
SIZE = avr-size
NM = avr-nm
AVRDUDE = avrdude
REMOVE = rm -f
MV = mv -f
# 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: build
build: elf hex eep
elf: $(TARGET).elf
hex: $(TARGET).hex
eep: $(TARGET).eep
lss: $(TARGET).lss
sym: $(TARGET).sym
# Program the device.
program: $(TARGET).hex $(TARGET).eep
@echo Programming $(MCU) at $(AVRDUDE_PORT)
# Convert ELF to COFF for use in debugging / simulating in AVR Studio or VMLAB.
COFFCONVERT=$(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).elf $(TARGET).cof
extcoff: $(TARGET).elf
$(COFFCONVERT) -O coff-ext-avr $(TARGET).elf $(TARGET).cof
.SUFFIXES: .elf .hex .eep .lss .sym
@echo Creating hex
@$(OBJCOPY) -O $(FORMAT) -R .eeprom $< $@
@echo Size of HEX-file
@$(SIZE) $@
@echo Creating eeprom
@$(OBJCOPY) -j .eeprom --set-section-flags=.eeprom="alloc,load" \
--change-section-lma .eeprom=0 -O $(FORMAT) $< $@
# Create extended listing file from ELF output file.
@$(OBJDUMP) -h -S $< > $@
# Create a symbol table from ELF output file.
$(NM) -n $< > $@
# Link: create ELF output file from object files.
$(TARGET).elf: $(OBJ)
@echo Compiling elf
$(CC) $(ALL_CFLAGS) $(OBJ) --output $@ $(LDFLAGS)
# Compile: create object files from C source files.
@echo Creating object files for $@
@$(CC) -c $(ALL_CFLAGS) $< -o $@
# Compile: create assembler files from C source files.
@echo Creating asm for $@
@$(CC) -S $(ALL_CFLAGS) $< -o $@
# Assemble: create object files from assembler source files.
$(CC) -c $(ALL_ASFLAGS) $< -o $@
# Target: clean project.
@echo Cleaning
@$(REMOVE) $(TARGET).hex $(TARGET).eep $(TARGET).cof $(TARGET).elf \
@$(TARGET).map $(TARGET).sym $(TARGET).lss $(TARGET).o \
@$(OBJ) $(LST) $(SRC:.c=.s) $(SRC:.c=.d)
if grep '^# DO NOT DELETE' $(MAKEFILE) >/dev/null; \
then \
sed -e '/^# DO NOT DELETE/,$$d' $(MAKEFILE) > \
$(MAKEFILE).$$$$ && \
$(MV) $(MAKEFILE).$$$$ $(MAKEFILE); \
echo '# DO NOT DELETE THIS LINE -- make depend depends on it.' \
>> $(MAKEFILE); \
$(CC) -M -mmcu=$(MCU) $(CDEFS) $(CINCS) $(SRC) $(ASRC) >> $(MAKEFILE)
.PHONY: all build elf hex eep lss sym program coff extcoff clean depend