66 lines
1.6 KiB
Makefile
66 lines
1.6 KiB
Makefile
# Author: Jake Goodwin
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# DATE: 2023-12-07
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# Descripion: A simple makefile for building and flashing hex files
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# Makefile for ATtiny13A
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# Compiler
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CC = avr-gcc
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#Default cpu frequency is 9.8Mhz, 4.8 gives us less power consumption
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#F_CPU = 1000000UL
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F_CPU = 4800000UL
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#F_CPU = 9800000UL
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MCU = attiny13a
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# Flags
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CFLAGS = -g -Os -mmcu=$(MCU) -DF_CPU=$(F_CPU)
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LDFLAGS = -Wl,-Map,$(TARGET).map
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# Source files
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SRC = main.c
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# Object files
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OBJ = $(SRC:.c=.o)
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# Target HEX file
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TARGET = main
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# Flashing options
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AVRDUDE = avrdude
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AVRDUDE_PROGRAMMER = -c usbasp
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BUADRATE = -B 125kHz
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AVRDUDE_PORT = -P /dev/ttyUSB0
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AVRDUDE_MCU = -p $(MCU)
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# Compile and generate HEX file
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all: $(TARGET).hex
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$(TARGET).hex: $(TARGET).elf
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avr-objcopy -j .text -j .data -O ihex $< $@
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$(TARGET).elf: $(OBJ)
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$(CC) $(CFLAGS) $(LDFLAGS) -o $@ $^
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%.o: %.c
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$(CC) $(CFLAGS) -c $< -o $@
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size: $(TARGET).o
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avr-size --mcu=$(MCU) -t ./$(TARGET).o
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# Default for the attiny13a is going to be 9.6Mhz
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flash_defualt_fuses:
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$(AVRDUDE) $(AVRDUDE_PROGRAMMER) $(AVRDUDE_PORT) $(AVRDUDE_MCU) $(BUADRATE) -U lfuse:w:0x6A:m -U hfuse:w:0xFF:m -U lock:w:0xFF:m
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# This is for 4.8Mhz
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flash_slow_fuse:
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$(AVRDUDE) $(AVRDUDE_PROGRAMMER) $(AVRDUDE_PORT) $(AVRDUDE_MCU) $(BUADRATE) -U lfuse:w:0x69:m -U hfuse:w:0xFF:m -U lock:w:0xFF:m
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flash_slow_nodiv8:
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$(AVRDUDE) $(AVRDUDE_PROGRAMMER) $(AVRDUDE_PORT) $(AVRDUDE_MCU) $(BUADRATE) -U lfuse:w:0x79:m -U hfuse:w:0xFF:m -U lock:w:0xFF:m
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flash: $(TARGET).hex
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$(AVRDUDE) $(AVRDUDE_PROGRAMMER) $(AVRDUDE_PORT) $(AVRDUDE_MCU) $(BUADRATE) -U flash:w:$(TARGET).hex:i
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clean:
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rm -f $(OBJ) $(TARGET).elf $(TARGET).hex $(TARGET).map
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.PHONY: all clean
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