msp430f5529 ADC12

335340679 · 发表于 2015-11-18 21:08:28

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#include <msp430.h>

int main(void)
{
  volatile unsigned int i;
  WDTCTL = WDTPW+WDTHOLD;                // Stop watchdog timer
  P6SEL |= 0x01;                         // Enable A/D channel A0
  REFCTL0 &= ~REFMSTR;                   // Reset REFMSTR to hand over control to
                                          // ADC12_A ref control registers
  ADC12CTL0 = ADC12ON+ADC12SHT02+ADC12REFON+ADC12REF2_5V;
                                          // Turn on ADC12, Sampling time
                                          // On Reference Generator and set to
                                          // 2.5V
  ADC12CTL1 = ADC12SHP;                   // Use sampling timer
  ADC12MCTL0 = ADC12SREF_1;                // Vr+=Vref+ and Vr-=AVss

  for ( i=0; i<0x30; i++);                // Delay for reference start-up

  ADC12CTL0 |= ADC12ENC;                   // Enable conversions

  while (1)
  {
ADC12CTL0 |= ADC12SC;                // Start conversion
while (!(ADC12IFG & BIT0));
__no_operation();                      // SET BREAKPOINT HERE

  }
}