On 05/08/16 06:22, a...@tuta.io 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 _______________________________________________ AVR-GCC-list mailing list AVR-GCC-list@nongnu.org https://lists.nongnu.org/mailman/listinfo/avr-gcc-list