//ICC-MSP application builder [F149] : 11/9/2010 1:11:08 PM
//Target 14x device

#include <msp430x16x.h>
#include <msp430def.h>
#include <stdio.h>
#include <math.h> 

#define CR 0x0a
#define LF 0x0d 

char lcd_display1[16]; //Display-Speicher Zeile 1
char lcd_display2[16]; //Display-Speicher Zeile 2

volatile int a,b,i,j,k;
volatile unsigned int adcvalue[32],data[1024];

void clock_init()
{
  //DCO=0x00
 DCOCTL=0x00;
 BCSCTL2=0x88;//SELM.1,SELS
 BCSCTL1=0x00;
}

void port_init()
{
 P1OUT=0x00;
 P1DIR=0x00;
 P1IES=0x00;
 P1IE=0x00;
 P1SEL=0x00;
 P2OUT=0x00;
 P2DIR=0x00;
 P2IES=0x00;
 P2IE=0x00;
 P2SEL=0x00;
 P3OUT=0x00;
 P3DIR=0x00+BIT4;
 P3SEL=0x00+BIT4;
 P4OUT=0x00;
 P4DIR=0x00;
 P4SEL=0x00;
 P5OUT=0x00;
 P5DIR=0x00;
 P5SEL=0x00;
 P6OUT=0x03;
 P6DIR=0x00;
 P6SEL=0x00;
}

void timera_init()
//Clock source=SMCLK
//Divider=1
//TIMACLK=4.0000MHz
//Frequency=19.048KHz ( 52.50uS)
{
 TACTL=0x00; //stop timer
 //channel0
 TACCTL0=0x34;//TAOM0.1,TAOM0.0,TACCIE0,TAOUT0
 TACCR0=0xD2;
 //channel1
 TACCTL1=0x00;
 TACCR1=0x00;
 //channel2
 TACCTL2=0x00;
 TACCR2=0x00;
 TAR=0x0000;//clear timer counter
 TACTL=0x216;//TASSEL.1,TAMC.0,1,TAIE
}

void adc12_init()
{
 ADC12CTL0=0x00;
 ADC12CTL1=0x610;//SHS.0,SHP,ADC12SSEL.1
 ADC12IE=0x00;
 ADC12CTL0=0x7F2;//ADC12MSC,ADC122_5V,ADC12REFON,ADC12ON,ADC12ENC
}
void usart0_init()
//Clock source=SMCLK
//Desired baud=19200
//Actual  baud=19196
{
 UCTL0=0x10;//CHAR0
 UTCTL0=0x20;//SSEL0.1
 URCTL0=0x08;//URXEIE0
 U0BR1=0x00;
 U0BR0=0xD0;
 UMCTL0=0xA2;
}

//call this routine to initialise all peripherals
void init_devices(void)
{
 //stop errant interrupts until set up
 DINT(); //disable all interrupts
 ME1=0X00; //disable sfr peripherals
 ME2=0X00; 
 IE1=0x00; //disable sfr interrupts
 IE2=0x00; 
 //watchdog initialisation including nmi function
 //WDTCTL=0x5A00 | 0x00;
 WDTCTL=0x5A00 | 0x10;//TMSEL
 //initialise other peripherals
 clock_init();
 port_init();
 timera_init();
 adc12_init();
 usart0_init();

 ME1=0xC0;
 ME2=0x00;
 IE1=0x00;
 IE2=0x00;
 EINT(); //re-enable interrupts
}

//interrupt handlers 

void init_adc12(void)
{
ADC12CTL0=SHT0_15+SHT1_15+ADC12ON+REFON+MSC;
 //ADC12CTL0=SHT0_8+ADC12ON+REFON; 
 ADC12CTL1=CONSEQ_0+ADC12SSEL_2+ADC12DIV_0+SHP+SHS_0+CSTARTADD_0;
// ADC12CTL1=CONSEQ_0+SHP;
 ADC12MCTL15=SREF_1+INCH_1+EOS;	//Vr+=Vref+
 ADC12IE = 0x8000;
 ADC12CTL0|=ENC;     //Enable conversions
}//end adc12

void init_timera(void)
 { 
   	TACCTL0 = OUTMOD_1;
	P6DIR = P6DIR | BIT2;
    TACCTL0 = CCIE;
	TACCR0=0xD2;
  	TACTL = TASSEL_2 + MC_1; 
}


 void wait(unsigned int xxx,unsigned int yyy)
{
unsigned int iii,jjj;
 	for (jjj=0;jjj<yyy;jjj++)
	 {
	 for (iii=0;iii<xxx;iii++) 
	    {
     	}
      }
} //End Wait


void ausgabee(unsigned char text[]) //Textoutput with Enter
{
int i=0;
while (text[i] != 0)
{
 TXBUF0 = text[i];
 wait(3,5);
 i++;
}
//print
 TXBUF0 = CR; //return
 wait(5,5);
 TXBUF0 = LF; //Line feed
 wait(5,5);
}//end output

//main code entry point

//SAMPLE FOR 210 MASTER CLK CYCLES
void main(void)
{
 init_devices();
 init_adc12();
 init_timera();
 clock_init();	 

 }// end for main

#pragma interrupt_handler timera_0_isr:TIMERA0_VECTOR
void timera_0_isr(void)
{
for(k=0;k<1024;k++)
	{
		 ADC12CTL0|=ADC12SC;
		 while(!(ADC12IFG&0x8000)); // CHECK FOR CONVERSIONS
		 data[k]=ADC12MEM0;//Access results
	}
}	
#pragma interrupt_handler adc12_isr:ADC_VECTOR
void adc12_isr(void)
{
volatile  unsigned int count=0;
for(i=0;i<32;i++)
	{
	 for(j=0;j<data[k];j+=32)
		{
	   	  adcvalue[j]=adcvalue[j]+adcvalue[32*i+j];
	    }
	 count++;
	}
 	//adcvalue[j]=ADC12MEM1;//Access results
		 P6OUT = P6OUT ^ BIT2;	
		 sprintf(lcd_display1,"AdcValue=%d ",adcvalue[j]);
		 ausgabee(lcd_display1);		
	}