main.c

int main(void)
{
DDRA |= (1 << PIN_OUT1) | (1 << PIN_OUT2);
PORTA |= ( (1<<PIN_RPI) );
BITCLEAR(PORTA, PIN_OUT1);
unsigned int OLDSTATE =  BITREAD(PINA, PIN_RPI);
uint8_t mode = 1;
while(1)
{
	if(BITREAD(PINA, PIN_RPI) != OLDSTATE)
	{
		if(mode<6) mode++; else mode = 1;
		OLDSTATE = BITREAD(PINA, PIN_RPI);
	}
	switch(mode)
	{
		case 1: pwmcycle(0,1);break;
		case 2: pwmcycle(5,25);break;
		case 3: pwmcycle(10,20);break;
		case 4: pwmcycle(15,15);break;
		case 5: pwmcycle(1,0);break;
	}
}
return 0;
}