Avr Assembler !!hot!! Download [TESTED]
So, you want to blink an LED by talking directly to the metal? Welcome.
Now assemble it using GNU toolchain:
avrasm2 -fI blink.asm If you get no errors and see a blink.hex file – Uploading Your First Assembled Program You need a programmer. The cheapest is an Arduino Uno running "Arduino as ISP" sketch. Then use avrdude : avr assembler download
RESET: ; Set PB5 as output sbi DDRB, 5