54 lines
1.2 KiB
Makefile
54 lines
1.2 KiB
Makefile
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AVR_LIBC_DIR=/tmp/avr-libc
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# Makefile
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MCU=atmega328p
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F_CPU=16000000
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CC=avr-gcc
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OBJCOPY=avr-objcopy
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CFLAGS=-nostdlib -std=c99 -Wall -Wextra -g -Os -mmcu=$(MCU) -DF_CPU=$(F_CPU) -I. -I$(AVR_LIBC_DIR)/include
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TARGET=main
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SERIAL=-P /dev/ttyUSB0 -b 115200
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SRC_DIR=.
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OBJ_DIR=build
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SRC_FILES=main.c
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OBJ_FILES=$(patsubst %.c,%.o,$(SRC_FILES))
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SRC=$(addprefix $(SRC_DIR)/,$(SRC_FILES))
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OBJ=$(addprefix $(OBJ_DIR)/,$(OBJ_FILES))
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all: flash
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re: fclean all
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fclean: clean
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clean:
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rm -rf $(OBJ_DIR)
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rm -f $(TARGET).hex
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hex: $(TARGET).hex
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flash: hex
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avrdude -p $(MCU) -c arduino -U flash:w:$(TARGET).hex:i $(SERIAL)
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$(OBJ_DIR)/$(TARGET).bin: $(OBJ)
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$(CC) $(CFLAGS) $(OBJ) -o $@
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$(OBJ_DIR)/%.o: $(SRC_DIR)/%.c $(AVR_LIBC_DIR)/.CACHETAG
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mkdir -p $(shell dirname $@)
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$(CC) $(CFLAGS) -c $< -o $@
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$(TARGET).hex: $(OBJ_DIR)/$(TARGET).bin
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$(OBJCOPY) -j .text -j .data -O ihex $< $@
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$(AVR_LIBC_DIR)/.CACHETAG:
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rm -rf $(AVR_LIBC_DIR)
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git clone --depth=1 https://github.com/avrdudes/avr-libc/ $(AVR_LIBC_DIR)
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cd $(AVR_LIBC_DIR) && ./bootstrap
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cd $(AVR_LIBC_DIR) && ./configure --build=`./config.guess` --host=avr
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cd $(AVR_LIBC_DIR) && make -j
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touch $(AVR_LIBC_DIR)/.CACHETAG
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