下面是源程序：- #include <msp430xG43x.h>
- void main(void)
- {
- WDTCTL = WDTPW + WDTHOLD; // Stop WDT
- ADC12CTL0 = SHT0_2 + ADC12ON; // Set sampling time, turn on ADC12
- ADC12CTL1 = SHP+ADC12SSEL_3; // Use sampling timer,ADC12clok=smclk;
- ADC12IE = 0x01; // Enable interrupt
- ADC12CTL0 |= ENC; // Conversion enabled
- P6SEL |= 0x20; // P6.0 ADC option select
- P3DIR |= 0xb0; // P5.1 output
- P3OUT = 0x00;
-
- DAC12_0CTL = DAC12IR + DAC12AMP_2; // Internal ref gain 1
- DAC12_0CTL |= DAC12ENC; // 使能dac
-
- for (;;)
- {
- ADC12CTL0 |= ADC12SC; // Sampling open
- _BIS_SR(CPUOFF + GIE); // LPM0, ADC12_ISR will force exit
- }
- }
- //ADC12 interrupt service routine
- #pragma vector=ADC12_VECTOR
- __interrupt void ADC12_ISR (void)
- {
- DAC12_0DAT = ADC12MEM0;
- _BIC_SR_IRQ(CPUOFF);
- }
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