finga
0065fb630f
Generate a variable duty cycle PWM signal for the dimmable display backlight at a frequency of 1.25kHz. For demo und testing purposes PD5 is currently fading between 0 and 100%.
42 lines
640 B
Makefile
42 lines
640 B
Makefile
.SUFFIXES:
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MCU := atmega328p
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PROGRAMMER := usbtiny
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TARGET := main.hex
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BIN := main.elf
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OBJ := main.o
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SHELL := sh
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CC := avr-gcc
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OBJCOPY := avr-objcopy
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SIZE := avr-size
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AVRDUDE := avrdude
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CFLAGS := -mmcu=$(MCU) -Os -Wall -Werror -Wextra -Wpedantic
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all: $(TARGET)
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$(TARGET): $(BIN)
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${OBJCOPY} -O ihex -j .text -j .data $< $@
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$(BIN): $(OBJ)
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$(CC) $(CFLAGS) $< -o $@
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%.o: %.c
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$(CC) $(CFLAGS) -Os -c $< -o $@
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.PHONY: flash clean check size
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flash: $(TARGET) size
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$(AVRDUDE) -p $(MCU) -c $(PROGRAMMER) -U flash:w:$<:a
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clean:
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$(RM) main.o main.elf main.hex
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check:
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cppcheck main.c
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size: $(BIN)
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$(SIZE) --format=avr --mcu=$(MCU) $<
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