#define F_CPU 16000000UL
#include <inttypes.h>
#include <avr/io.h>
//#include <util/delay.h>
#include <avr/pgmspace.h>

// global variables

uint16_t pwm_plus_tabelle[16] PROGMEM = {0, 4, 8, 15, 19, 27, 35, 46, 58, 62, 79, 90, 100, 182, 216, 255};

uint16_t pwmtable_8[256] PROGMEM =  {20, 20, 20, 21, 21, 21, 21, 21, 22, 22, 22, 22, 23, 23, 23, 23,
                   23, 24, 24, 24, 24, 25, 25, 25, 25, 26, 26, 26, 26, 27, 27,
                   27, 28, 28, 28, 28, 29, 29, 29, 30, 30, 30, 30, 31, 31, 31, 32,
                   32, 32, 33, 33, 33, 34, 34, 34, 35, 35, 35, 36, 36, 36, 37, 37,
                   38, 38, 38, 39, 39, 39, 40, 40, 41, 41, 41, 42, 42, 43, 43, 44,
                   44, 44, 45, 45, 46, 46, 47, 47, 48, 48, 49, 49, 50, 50, 51, 51,
                   52, 52, 53, 53, 54, 54, 55, 55, 56, 56, 57, 58, 58, 59, 59, 60,
                   61, 61, 62, 62, 63, 64, 64, 65, 66, 66, 67, 68, 68, 69, 70, 70,
                   71, 72, 72, 73, 74, 75, 75, 76, 77, 78, 79, 79, 80, 81, 82, 83,
                   83, 84, 85, 86, 87, 88, 89, 89, 90, 91, 92, 93, 94, 95, 96, 97,
                   98, 99,  100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110,
                   111, 112, 114, 115, 116, 117, 118, 119, 121, 122, 123, 124, 126,
                   127, 128, 129, 131, 132, 133, 135, 136, 137, 139, 140, 141, 143,
                   144, 146, 147, 149, 150, 152, 153, 155, 156, 158, 160, 161, 163,
                   164, 166, 168, 169, 171, 173, 175, 176, 178, 180, 182, 183, 185,
                   187, 189, 191, 193, 195, 197, 199, 201, 203, 205, 207, 209, 211,
                   213, 215, 217, 220, 222, 224, 226, 228, 231, 233,  235, 238, 240,
                   243, 245, 247, 250, 252, 255};

uint16_t pwmtable_16[256] PROGMEM = {0, 1, 1, 1, 1, 1, 1, 1, 1, 2, 2, 2, 2, 2,
                                     2, 2, 2, 2, 2, 2, 2, 3, 3, 3, 3, 3, 3, 3,
                                     4, 4, 4, 4, 4, 4, 5, 5, 5, 5, 5, 6, 6, 6,
                                     6, 7, 7, 7, 8, 8, 8, 9, 9, 10, 10, 10, 11, 11,
                   12, 12, 13, 13, 14, 15, 15, 16, 17, 17, 18, 19, 20, 21,
                   22, 23, 24, 25, 26, 27, 28, 29, 31, 32, 33, 35, 36, 38,
                   40, 41, 43, 45, 47, 49, 52, 54, 56, 59, 61, 64, 67, 70,
                   73, 76, 79, 83, 87, 91, 95, 99, 103, 108, 112, 117, 123, 128,
                   134, 140, 146, 152, 159, 166, 173, 181, 189, 197, 206, 215, 225, 235,
                   245, 256, 267, 279, 292, 304, 318, 332, 347, 362, 378, 395, 412, 431,
                   450, 470, 490, 512, 535, 558, 583, 609, 636, 664, 693, 724, 756, 790,
                                     825, 861, 899, 939, 981, 1024, 1069, 1117, 1166, 1218, 1272, 1328, 1387, 1448,
                   1512, 1579, 1649, 1722, 1798, 1878, 1961, 2048, 2139, 2233, 2332, 2435, 2543, 2656,
                   2773, 2896, 3025, 3158, 3298, 3444, 3597, 3756,3922, 4096, 4277, 4467, 4664, 4871,
                   5087, 5312, 5547, 5793, 6049, 6317, 6596, 6889,7194, 7512, 7845, 8192, 8555, 8933,
                   9329, 9742, 10173, 10624, 11094, 11585, 12098, 12634, 13193, 13777, 14387, 15024, 15689, 16384, 17109,
                   17867, 18658, 19484, 20346,21247, 22188, 23170, 24196, 25267, 26386, 27554, 28774, 30048, 31378,
                   32768, 34218,35733, 37315, 38967, 40693, 42494, 44376, 46340, 48392, 50534, 52772, 55108, 57548,
                   60096, 62757, 65535};



void delay_ms( unsigned int ms )
{
    unsigned int  i;
    unsigned int  j;

    for ( i = ms;  0<i;  i-- )
    {
        for ( j = 51;  0<j;  j-- )
        {
    }
    }
}

void hoch(){
uint8_t tmp, tmp2;
  for(tmp=0, tmp2=85; tmp<255; tmp++, tmp2++){
        OCR1A = pgm_read_word(&pwmtable_16[tmp]);
      OCR1B = pgm_read_word(&pwmtable_16[tmp2]);
      delay_ms(250);
        }

}

void runter(){
uint8_t tmp, tmp2, x=0;

  for(tmp=255, tmp2=170; tmp>0 ; tmp--, tmp2--){
            OCR1A = pgm_read_word(&pwmtable_16[tmp]);

      if(tmp2==0)
        x=1;

      if(x==1){
        OCR1B = pgm_read_word(&pwmtable_16[tmp2]);

        if(tmp2==170)
          x=2;
      }

      if(tmp<=86){
        OCR1B = pgm_read_word(&pwmtable_16[tmp2]);
        }
      delay_ms(250);
        }
}
int main(void)
{
  //Aus- & eingänge definieren
       DDRD |= (1<<PD4)|(1<<PD5)|(1<<PD7);//Als Auagang setzen. LED uses OC1A oc1b oc2
  DDRC &= ~((1<<PC0)|(1<<PC1));// als eingang setzen
  PORTC|= (1<<PC0)|(1<<PC1);//pull up widerstand einschalten
  DDRD &= ~(1<<PD2);// als eingang setzen
  PORTD |= (1<<PD2);//pull up widerstand einschalten

////16Bit Counter
  TCCR1A |= (1<<COM1A1)|(1<<COM1B1)|(1<<WGM11);       // non-inverted PWM on OC1A, 16 Bit Fast PWM
    TCCR1B |= (1<<WGM13)|(1<<CS10);//|(1<<WGM12);
  ICR1 = 0xFFFF;  // TOP for PWM, full 16 Bit
  TCCR1B &= ~((1<<CS12)|(1<<CS11)); // |(1<<CS11) clear clk setting
///16Bit counter ende
/*
//8Bit counter
  TCCR2 &= ~(1<<FOC2);
  TCCR2 |= (1<<WGM21)|(1<<WGM20)|(1<<COM21)|(1<<CS20); //|(1<<COM20) DaTa s.126
//8bit counter ende
*/
  uint8_t tmp, tmp2;
    while(1) {
        /*
    for(tmp=0; tmp<255; tmp++){
        OCR2 = pgm_read_word(&pwmtable_8[tmp]);
      delay_ms(50);
        }

    for(tmp=255; tmp>0; tmp--){
        OCR2 = pgm_read_word(&pwmtable_8[tmp]);
      delay_ms(50);
        }
    */
      //hoch();
        runter();
    }
    return 0;
}