下面是设置寄存器程序
ADC12CTL0 = ADC12ON+ADC12SHT02+ADC12REFON+ADC12REF2_5V;
ADC12CTL1 = ADC12SHP; // Use sampling timer
ADC12MCTL0 = ADC12SREF_1+ADC12INCH_3; // Vr+=Vref+ and Vr-=AVss
ADC12IE = 0x08;
ADC12CTL0 |= ADC12ENC; // Enable conversions
P6SEL |= 0x08; // Enable A/D channel A0
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