MCU = atmega328p F_CPU = 16000000 LFUSE = 0xFF HFUSE = 0xDE EFUSE = 0x05 MAIN = main.c ## If you've split your program into multiple files, ## include the additional .c source (in same directory) here ## (and include the .h files in your foo.c) LOCAL_SOURCE = ## Here you can link to one more directory (and multiple .c files) # EXTRA_SOURCE_DIR = ../AVR-Programming-Library/ EXTRA_SOURCE_DIR = lib/ EXTRA_SOURCE_FILES = debounce.c lcd.c adc.c EXTRA_CFLAGS = ##########------------------------------------------------------########## ########## Programmer Defaults ########## ########## Set up once, then forget about it ########## ########## (Can override. See bottom of file.) ########## ##########------------------------------------------------------########## #19200 PROGRAMMER_TYPE = arduino PROGRAMMER_ARGS = -b 57600 -P /dev/ttyUSB0 ##########------------------------------------------------------########## ########## Makefile Magic! ########## ########## Summary: ########## ########## We want a .hex file ########## ########## Compile source files into .elf ########## ########## Convert .elf file into .hex ########## ########## You shouldn't need to edit below. ########## ##########------------------------------------------------------########## ## Defined programs / locations CC = avr-gcc OBJCOPY = avr-objcopy OBJDUMP = avr-objdump AVRSIZE = avr-size AVRDUDE = avrdude ## Compilation options, type man avr-gcc if you're curious. CFLAGS = -std=gnu99 -mmcu=$(MCU) -DF_CPU=$(F_CPU)UL -I. -I$(EXTRA_SOURCE_DIR) CFLAGS += -funsigned-char -funsigned-bitfields -fpack-struct -fshort-enums CFLAGS += -Wall -Wno-main -Wno-strict-prototypes -Wno-comment CFLAGS += -g2 -Wextra -Wfatal-errors CFLAGS += -ffunction-sections -fdata-sections -Wl,--gc-sections -Wl,--relax CFLAGS += $(EXTRA_CFLAGS) CFLAGS_BUILD = $(CFLAGS) -Os # CFLAGS += -lm ## CFLAGS += -Wl,-u,vfprintf -lprintf_flt -lm ## for floating-point printf ## CFLAGS += -Wl,-u,vfprintf -lprintf_min ## for smaller printf ## Lump target and extra source files together TARGET = $(strip $(basename $(MAIN))) SRC1 = $(TARGET).c SRC = $(SRC1) EXTRA_SOURCE = $(addprefix $(EXTRA_SOURCE_DIR), $(EXTRA_SOURCE_FILES)) SRC += $(EXTRA_SOURCE) SRC += $(LOCAL_SOURCE) ## List of all header files HEADERS = $(SRC:.c=.h) ## For every .c file, compile an .o object file OBJ = $(SRC:.c=.o) ## Generic Makefile targets. (Only .hex file is necessary) all: $(TARGET).hex size pre: $(TARGET).pre %.hex: %.elf $(OBJCOPY) -R .eeprom -O ihex $< $@ %.elf: $(SRC) $(CC) $(CFLAGS_BUILD) $(SRC) --output $@ %.pre: $(SRC1) $(CC) $(CFLAGS) -E $(SRC1) --output $@ %.eeprom: %.elf $(OBJCOPY) -j .eeprom --change-section-lma .eeprom=0 -O ihex $< $@ debug: @echo @echo "Source files:" $(SRC) @echo "MCU, F_CPU, BAUD:" $(MCU), $(F_CPU), $(BAUD) @echo # Optionally create listing file from .elf # This creates approximate assembly-language equivalent of your code. # Useful for debugging time-sensitive bits, # or making sure the compiler does what you want. disassemble: $(TARGET).lst dis: disassemble lst: disassemble eeprom: $(TARGET).eeprom %.lst: %.elf $(OBJDUMP) -S $< > $@ # Optionally show how big the resulting program is size: $(TARGET).elf $(AVRSIZE) -C --mcu=$(MCU) $(TARGET).elf clean: rm -f $(TARGET).elf $(TARGET).hex $(TARGET).obj \ $(TARGET).o $(TARGET).d $(TARGET).eep $(TARGET).lst \ $(TARGET).lss $(TARGET).sym $(TARGET).map $(TARGET)~ \ $(TARGET).eeprom squeaky_clean: rm -f *.elf *.hex *.obj *.o *.d *.eep *.lst *.lss *.sym *.map *~ ##########------------------------------------------------------########## ########## Programmer-specific details ########## ########## Flashing code to AVR using avrdude ########## ##########------------------------------------------------------########## flash: $(TARGET).hex $(AVRDUDE) -c $(PROGRAMMER_TYPE) -p $(MCU) $(PROGRAMMER_ARGS) -U flash:w:$< flash_eeprom: $(TARGET).eeprom $(AVRDUDE) -c $(PROGRAMMER_TYPE) -p $(MCU) $(PROGRAMMER_ARGS) -U eeprom:w:$< terminal: $(AVRDUDE) -c $(PROGRAMMER_TYPE) -p $(MCU) $(PROGRAMMER_ARGS) -nt flash_arduino: PROGRAMMER_TYPE = arduino flash_arduino: PROGRAMMER_ARGS = flash_arduino: flash flash_dragon_isp: PROGRAMMER_TYPE = dragon_isp flash_dragon_isp: PROGRAMMER_ARGS = flash_dragon_isp: flash ##########------------------------------------------------------########## ########## Fuse settings and suitable defaults ########## ##########------------------------------------------------------########## ## Generic FUSE_STRING = -U lfuse:w:$(LFUSE):m -U hfuse:w:$(HFUSE):m -U efuse:w:$(EFUSE):m fuses: $(AVRDUDE) -c $(PROGRAMMER_TYPE) -p $(MCU) \ $(PROGRAMMER_ARGS) $(FUSE_STRING) show_fuses: $(AVRDUDE) -c $(PROGRAMMER_TYPE) -p $(MCU) $(PROGRAMMER_ARGS) -nv ## Called with no extra definitions, sets to defaults set_default_fuses: FUSE_STRING = -U lfuse:w:$(LFUSE):m -U hfuse:w:$(HFUSE):m -U efuse:w:$(EFUSE):m set_default_fuses: fuses