Du får denne warning fordi
Denne erklæring giver dette:
#include <util/delay.h>
#define F_CPU 16000000UL
Severity Code Description Project File Line
Warning "F_CPU" redefined GccApplication1 C:\data\62734\afleveringer\forår2016\GccApplication1\GccApplication1\GccApplication1\main.c 10
Warning #warning "F_CPU not defined for <util/delay.h>" [-Wcpp] GccApplication1 c:\program files (x86)\atmel\studio\7.0\toolchain\avr8\avr8-gnu-toolchain\avr\include\util\delay.h 90
det rigtige er:
#define F_CPU 16000000UL
#include <util/delay.h>
