CC = avr-gcc CFLAGS = -O2 -Wall -Wextra -Werror -mmcu=atmega328p OBJCOPY = avr-objcopy PORT ?= /dev/ttyACM0 all: ${CC} ${CFLAGS} main.c ${OBJCOPY} -j .text -j .data -O ihex a.out main.hex rm -f a.out flash: all avrdude -p atmega328p -c arduino -P /dev/ttyACM0 -b 115200 -U flash:w:main.hex:i