Avr Assembler !exclusive! Download -
Now go download. Make that LED blink in pure Assembly. You'll never look at digitalWrite() the same way again. Last updated: 2025. Toolchain versions change, but the GNU assembler for AVR has been stable for 15+ years. If a link is dead, search for "avr-gcc" on your OS's package manager.
DELAY: ; Delay loop (approximate) ldi r17, 0xFF L1: ldi r18, 0xFF L2: dec r18 brne L2 dec r17 brne L1 dec r16 brne DELAY ret avr assembler download
avr-gcc -mmcu=atmega328p -c blink.asm -o blink.o avr-gcc -mmcu=atmega328p blink.o -o blink.elf avr-objcopy -O ihex blink.elf blink.hex Or using original AVRASM32: Now go download
sudo apt update sudo apt install gcc-avr avr-libc avrdude binutils-avr That's it. You now have avr-as , avr-ld , avr-objcopy , and avrdude . Install Homebrew first, then: Last updated: 2025
LOOP: ; Turn LED on sbi PORTB, 5 ldi r16, 0xFF call DELAY ; Turn LED off cbi PORTB, 5 ldi r16, 0xFF call DELAY rjmp LOOP