############################################# # CPU type MCU = atmega328p # CPU frequency [Hz] F_CPU = 16000000 # Fuses (refer to datasheet) LFUSE = 0xFF HFUSE = 0xDE EFUSE = 0x05 # AVRDUDE settings PROG_BAUD = 57600 PROG_DEV = /dev/ttyUSB0 PROG_TYPE = arduino # Build the final AVRDUDE arguments PROG_ARGS = -c $(PROG_TYPE) -p $(MCU) -b $(PROG_BAUD) -P $(PROG_DEV) ############################################# # Main file BINARY = main # Obj files to be built <- add .o for any .c files you add! OBJS = $(BINARY).o OBJS += lib/usart.o OBJS += lib/iopins.o OBJS += lib/spi.o OBJS += lib/adc.o OBJS += lib/debounce.o OBJS += lib/wsrgb.o OBJS += lib/color.o OBJS += display.o # Dirs with header files INCL_DIRS = . lib/ # Pre-defined macros DEFS = -DF_CPU=$(F_CPU)UL ############################################# # C flags CFLAGS = -std=gnu99 -mmcu=$(MCU) $(DEFS) $(INCL_DIRS:%=-I%) CFLAGS += -funsigned-char -funsigned-bitfields -fpack-struct -fshort-enums -ffreestanding CFLAGS += -Wall -Wno-main -Wno-strict-prototypes -Wno-comment CFLAGS += -g2 -Wextra -Wfatal-errors -Wno-unused-but-set-variable CFLAGS += -ffunction-sections -fdata-sections -Os -Wno-unused-parameter LDFLAGS = -Wl,--gc-sections -Wl,--relax -lm #LD_FLAGS += -Wl,-u,vfprintf -lprintf_flt -lm ## for floating-point printf LD_FLAGS += -Wl,-u,vfprintf -lprintf_min ## for smaller printf ############################################# ## Defined programs / locations CC = avr-gcc OBJCOPY = avr-objcopy OBJDUMP = avr-objdump AVRSIZE = avr-size AVRDUDE = avrdude JUNK = *.o *.d *.elf *.bin *.hex *.srec *.list *.lst *.map *.dis *.disasm *.eep *.eeprom *.lss .SUFFIXES: .elf .bin .hex .lst .map .eeprom .pre .SECONDEXPANSION: .SECONDARY: .PHONY: all elf bin hex lst pre ee eeprom dis size clean flash flashe shell fuses show_fuses set_default_fuses all: hex size elf: $(BINARY).elf bin: $(BINARY).bin hex: $(BINARY).hex lst: $(BINARY).lst pre: $(BINARY).pre ee: $(BINARY).eeprom eeprom: $(BINARY).eeprom dis: lst # Show how big the resulting program is size: elf $(AVRSIZE) -C --mcu=$(MCU) $(BINARY).elf # --- Magic build targets ---------------- %.hex: %.elf $(OBJCOPY) -R .eeprom -O ihex $< $@ %.elf %.map: $(OBJS) $(CC) $(CFLAGS) $(LDFLAGS) $(OBJS) -o $(*).elf %.pre: %.c $(CC) $(CFLAGS) -E $(*).c --output $@ %.eeprom: %.elf $(OBJCOPY) -j .eeprom --change-section-lma .eeprom=0 -O ihex $< $@ %.lst: %.elf $(Q)$(OBJDUMP) -S $(*).elf > $(*).lst %.o: %.c $(CC) $(CFLAGS) -o $(*).o -c $(*).c %.o: %.s $(CC) $(CFLAGS) -o $(*).o -c $(*).s # Clean all produced trash clean: rm -f $(JUNK) cd lib && rm -f $(JUNK) ## === avrdude === flash: $(BINARY).hex $(AVRDUDE) $(PROG_ARGS) -U flash:w:$< flashe: $(BINARY).eeprom $(AVRDUDE) $(PROG_ARGS) -U eeprom:w:$< shell: $(AVRDUDE) $(PROG_ARGS) -nt # === fuses === # this may not work with the arduino programmer, I haven't tried. FUSE_STRING = -U lfuse:w:$(LFUSE):m -U hfuse:w:$(HFUSE):m -U efuse:w:$(EFUSE):m fuses: $(AVRDUDE) $(PROG_ARGS) $(FUSE_STRING) show_fuses: $(AVRDUDE) $(PROG_ARGS) -nv