54 lines
1.2 KiB
Makefile
54 lines
1.2 KiB
Makefile
# required packages: avrdude gcc-avr avr-libc
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# the atmega firmware binary to output
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TARGET=scale
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# to compile
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CC=avr-gcc
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OBJDUMP=avr-objdump
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OBJCOPY=avr-objcopy
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CFLAGS=-g -Wall -Werror -O3 -std=c99
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# the target
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DEVICE=atmega328p
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F_CPU=16000000UL
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# the flasher
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PROGRAMMER=arduino
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PORT=/dev/ttyUSB0
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# to flash (specially for the arduino, with DTR pulse ot reset)
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FLASHER=avrdude -p $(DEVICE) -c $(PROGRAMMER) -P $(PORT) -b 57600 -D
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# source files to compile
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SRC = $(wildcard *.c)
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# header files.
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HEADER = $(SRC:.c=.h)
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# object files.
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OBJ = $(SRC:.c=.o)
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# listing files.
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LST = $(SRC:.c=.lst)
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all: compile $(TARGET).lst flash
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reset:
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stty 57600 raw ignbrk hup < $(PORT)
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flash: compile reset
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$(FLASHER) -U flash:w:$(TARGET).hex:i
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compile: $(TARGET).hex
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# compile
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%.o: %.c %.h
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$(CC) $(CFLAGS) -I. -mmcu=$(DEVICE) -DF_CPU=$(F_CPU) -c -o $@ $<
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# link
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%.elf: $(OBJ)
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$(CC) $(CFLAGS) -I. -mmcu=$(DEVICE) -DF_CPU=$(F_CPU) -Wl,-Map=$(TARGET).map,--cref -o $@ $(OBJ)
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# extended listing
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%.lst: %.elf
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$(OBJDUMP) -h -S $< > $@
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# output file
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%.hex: %.elf
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$(OBJCOPY) -j .text -j .data -O ihex $< $@
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clean:
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rm -f $(TARGET) $(TARGET).hex $(TARGET).elf $(TARGET).lst $(TARGET).map $(LST) $(OBJ)
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