ADC12CTL0 = ADC12ON+SHT0_8+MSC; // 打开ADC，设置采样时间 ADC12CTL1 = SHP+CONSEQ_3+CSTARTADD_1; // 使用采样定时器 转换模式单通道多次转换 ADC12MCTL1=INCH_1; ADC12MCTL2=INCH_2; ADC12MCTL3=INCH_3;