Re: [avr-gcc-list] gcc-avr 4.9.2 -Os messes with interrupt vectors

[Thomas D. Dean]

On 05/08/16 06:22, address@hidden wrote:

Looks like you are toggling the LED too fast to see it.

Try adding a delay in the while loop

while (1) {
  PORTB |= (1 << PB5);
  delay_ms(500); /* or something */
}

Look at the avr-libc documentation.
http://nongnu.org/avr-libc/user-manual/

Tom Dean