// ek307ad.c
// This file contains several useful commands that you can insert in your code 
// so that you can perform analog-to-digital (A/D) conversion using the MSP430


      P1DIR=0 // Assumes pin P1.0 is used as the analog input.


// Add these SETUP COMMANDS to the main(void) part of your program:

//Set conversion to single channel, and continuous-sampling mode
     ADC10CTL1 |= CONSEQ1;                                  

//Set the Sample-and-Hold time, specify 10-bit conversion, and continuous sampling:
      ADC10CTL0 |= ADC10SHT_2 + ADC10ON + MSC;

//Choose P1.0 (channel A0) as the analog input pin:
      ADC10AE0  |= 1;			


//Add these executable commands to the INTERUPT  main portion) of your code:

// Start A/D conversion; Result appears in memory variable "ADC10MEM"
      ADC10CTL0 |= ADC10SC + ENC; 

// SET VARIABLE n TO THE RESULT OF THE A/D CONVERSION: 

      n = ADC10MEM;	
  
// (NOTE THAT the variable ADC10MEM is a signed integer type, 
// so its maximum positive value is 512.)