#include <msp430x26x.h>
#include <iostream.h>

unsigned long int w_repeat = 0;                              //Aktuelle Halbwelle
unsigned long int w_repeat_stop = 0;                         //Maximale Anzahl von Halbwellen

int w_SetCCR = 0;                                       //Variable zum Setzen der Capture/Compare Register von Timer B

unsigned long int w_Periode = 1;                             //Anzahl Perioden gleicher Frequenz
unsigned long int w_PeriodCOUNT = 0;
unsigned long int w_StartFRQ;                           //Startfrequenz in kHz
unsigned long int w_StopFRQ;                            //Stopfrequenz in kHz
unsigned long int w_StartCOUNT;                          //Zählerstand bei Startfrequenz
unsigned long int w_StopCOUNT;                           //Zählerstand bei Stopfrequenz


long int i = 1;
int i2 = 0;
int h = 0;
int b = 0;
int t = 0;
long int j = 0;
long int w = 100;                                        //DAC-Werte

long int a[200] = 
{2047, 2112, 2177, 2241, 2305, 2368, 2432,2495, 2557, 2619, 
2681, 2742, 2802, 2861, 2920, 2978, 3035, 3091, 3145, 3199, 
3253, 3303, 3353, 3402, 3450, 3496, 3541, 3584, 3626, 3666, 
3705, 3742, 3777, 3811, 3843, 3873, 3901, 3928, 3952, 3975, 
3996, 4015, 4032, 4047, 4060, 4071, 4080, 4087, 4092, 4095, 
4095, 4092, 4087, 4080, 4071, 4060, 4047, 4032, 4015, 3996, 
3975, 3952, 3928, 3901, 3873, 3843, 3811, 3777, 3742, 3705, 
3666, 3626, 3584, 3541, 3496, 3450, 3402, 3353, 3303, 3253, 
3199, 3145, 3091, 3035, 2978, 2920, 2861, 2802, 2742, 2681, 
2619, 2557, 2495, 2432, 2368, 2305, 2241, 2177, 2112, 2048, 
1984, 1919, 1855, 1791, 1728, 1664, 1601, 1539, 1477, 1415, 
1354, 1294, 1235, 1176, 1118, 1061, 1005,  951,  897,  844, 
 793,  743,  694,  656,  600,  555,  512,  470,  430,  391, 
 354,  318,  285,  253,  223,  195,  168,  143,  121,  100, 
  81,   64,   49,   36,   25,   16,    9,    4,    1,    1, 
   4,    9,   16,   25,   36,   49,   64,   81,  100,  121,
 143,  168,  195,  223,  253,  285,  318,  354,  391,  430, 
 470,  512,  655,  600,  656,  694,  743,  793,  844,  897, 
 951, 1005, 1061, 1118, 1176, 1235, 1294, 1354, 1415, 1477, 
1539, 1601, 1664, 1728, 1791, 1855, 1919, 1984, 2044, 2047};  

int r[6];




  //***********************Initialization****************************************************************************

void start()
{
  _EINT();
 
  //***********************Basic Clock Modul Setting*****************************************************************
  
  
  DCOCTL  = DCO0 + DCO1 + DCO2 ;    
  BCSCTL1 = RSEL0 + RSEL1 + RSEL2 + RSEL3 + XT2OFF + XTS + DIVA_0;
  BCSCTL2 = DIVM_0 + DIVS_0 + +SELS + SELM_2;
  BCSCTL3 = LFXT1S_2 + XCAP_3 + XT2S_2;
  
  

    
  //***********************Port 1 Initialization*********************************************************************
  
  P1OUT = 0x00;
  P1DIR = 0x0f;                         //Enable Port1.0 - Port1.3 as output, Port1.4 - Port1.7 as input
  P1IES = 0x00;
  P1SEL = 0x00;
  
  //***********************Port 2 Initialization*********************************************************************
  
  P2OUT = 0x00;
  P2DIR = 0x0f;                         //Enable Port2.0 - Port2.3 as output, Port2.4 - Port2.7 as input
  P2IES = 0x00;
  P2SEL = 0x00;
  
  //***********************Port 3 Initialization*********************************************************************
  
  P3OUT = 0x00;
  P3DIR = 0xff;                         //Enable Port3 as output
  P3SEL = 0x00;
  
  //***********************Port 5 Initialization*********************************************************************
  
  P5OUT = 0x00;
  P5DIR = 0xff;                         //Enable Port3 as output
  P5SEL = 0x70;  
  
  //***********************Port 6 Initialization*********************************************************************
  
  P6DIR = 0xf0;                         //Enable Port6.0 - Port6.3 as input, Port2.4 - Port2.7 as output
  P6SEL = 0xff;
   
  //***********************Watchdog Timer Initialization*************************************************************
  
  WDTCTL = WDTPW + WDTHOLD;             //Stop Watchdog Timer
 // IE1 |= WDTIE;                         // Watchdog Interrupt Enable
  
  //***********************Timer A***********************************************************************************
  
  /*TACTL = TASSEL_1 + MC_1 + TAIE;
  TACCR0 = 500;*/
  
  //***********************Timer B***********************************************************************************
  
  w_repeat_stop=2*w_Periode;
  w_StartCOUNT = 16000;
  w_StopCOUNT = 6333;
  w_PeriodCOUNT = w_StartCOUNT;
  
  TBCTL = TBCLGRP_0 + CNTL_0 + TBSSEL_2 + ID_0 + MC_1 + TBIE + TBIFG;

  TBCCTL0 = SCS + CCIE + CLLD_0;
  TBCCTL1 = SCS + CCIE + CLLD_0;
  
  TBCCR0 = w_PeriodCOUNT;
  TBCCR1 = w_PeriodCOUNT/w;
  
  //***********************DAC12*************************************************************************************
  
  DAC12_0CTL = DAC12SREF_0 + DAC12LSEL_0 + DAC12AMP_7 + DAC12IR;
  DAC12_1CTL = DAC12SREF_0 + DAC12LSEL_0 + DAC12AMP_7 + DAC12IR;
  
  //***********************ADC12*************************************************************************************

  ADC12CTL0 = SHT1_1 + SHT0_1 + REF2_5V + REFON + ADC12ON ;    //2,5V Reference on, ADC12 ON
  ADC12CTL1 = CSTARTADD_0 + SHS_0 + ADC12DIV_1 + ADC12SSEL_2 + SHP;
  ADC12MCTL0 = EOS + SREF_0 + INCH_0;
  ADC12IE = 0x0001;




} 
  
  //***********************MAIN**************************************************************************************

void main()
{
  start();
  
  while(1)
  {
    if(w_SetCCR == 1)
    {
      TBCCR1 = i*w_PeriodCOUNT/w;
    }
    
    w_SetCCR = 0;
  }
}

#pragma vector=TIMERB0_VECTOR
__interrupt void Timer_B0_INTERRUPT (void)
{

j++;
  
if (j % 2 == 0)
   {
    P3OUT ^= 0x01;
    w_PeriodCOUNT = w_PeriodCOUNT - 2;
    TBCCR0 = w_PeriodCOUNT;
    TBCCR1 = w_PeriodCOUNT/w;
   }
if (w_PeriodCOUNT <= w_StopCOUNT)
   {
    w_PeriodCOUNT = w_StartCOUNT;
    TBCCR0 = w_PeriodCOUNT;
    TBCCR1 = w_PeriodCOUNT/w;
   }

}

#pragma vector=TIMERB1_VECTOR
__interrupt void Timer_B1_INTERRUPT (void)
{

  
if(TBIV == 0x02 | 0x0E)
{ 
  t++;
  
  w_SetCCR = 1;
  DAC12_0DAT = a[t-1];
   
  if(t == 50)
  {
    P1OUT ^= 0x01;
  }
  
  if(t == 100)
  {
    P1OUT ^= 0x02;
    i = 0;
  }
  
  if(t == 150)
  {
    P1OUT ^= 0x01;
  }
 
  if(t == 199)
  {
    P1OUT ^= 0x02;
    t = 0;
    i = 0;
  }
  
  i++;

}
}

  //***********************END***************************************************************************************