MSP430FR5994 ADC12_B ADC12SHSx触发选择

这是我配置6972的仅供参考：

定时器配置：

void TimerB0_Init(void)
{      
  TB0CCTL0 = CCIE | OUTMOD_2;                          
  TB0CCR0 = 9;//采样个数64点/20ms
  
  TB0CTL = TBSSEL__ACLK | MC__UP; //ACLK, UP mode 
}

ADC配置：

void startADC(void)
{
  
      while(REFCTL0 & REFGENBUSY);              // If ref generator busy, WAIT
      REFCTL0 |= REFVSEL_2 | REFON;             // Select internal ref = 2.5V
                                                // Internal Reference ON
      // Configure ADC12
      ADC12CTL0 = ADC12ON | ADC12SHT0_3 | ADC12MSC;        // Turn on ADC12, set sampling time 4 ADC12CLK
      ADC12CTL1 = ADC12SHP |ADC12SHS_2 | ADC12CONSEQ_1 ; // TTimer_B TB0 CCR0 output触发采样，序列通道采样 0-1

      
      ADC12CTL3 = ADC12CSTARTADD_0;
  
      ADC12MCTL0 = ADC12INCH_2 | ADC12VRSEL_1; //只采电流
      ADC12MCTL1 = ADC12INCH_3 | ADC12VRSEL_1 | ADC12EOS;
      
      ADC12IER0 = ADC12IE1;
      
      ADC12CTL0 |= ADC12ENC | ADC12SC;
}