msp430fr5739 ADC问题

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msp430fr5739 ADC问题 [复制链接]

ADC的序列单次采样是怎么设置的呢？    哪位有源码贴一下
还有就是采样通道是怎么和管教匹配的？
自己昨天写了一个程序，但是发现MEM寄存器的值一直是0x03FF   也就是说可能根本没有采样

  // Configure ADC10 

  ADC10CTL0 |= ADC10ON + ADC10MSC + ADC10SHT_3;          // ADC10ON

  ADC10CTL1 |= ADC10SHP + ADC10CONSEQ_1 + ADC10SSEL_3 + ADC10DIV_1;

  ADC10CTL2 |= ADC10RES;                    // 10-bit conversion results

  ADC10MCTL0 |= ADC10SREF_1;     //  ADC input select; Vref=2.5V

  ADC10MCTL0 |= ACC_X_CHANNEL;

  ADC10MCTL0 |= ACC_Y_CHANNEL; 

  ADC10MCTL0 |= ACC_Z_CHANNEL;

下面这段是main里面的

  while(1){

    led1_on;

    while(UCA0STATW & UCBUSY);

    TXdata = xyz[0];

    while (ADC10CTL1 & BUSY);               // Wait if ADC10 core is

    ADC10CTL0 |= ADC10ENC + ADC10SC;        // Start sampling

    led1_off;

    led2_on;

    while(UCA0STATW & UCBUSY);

    TXdata = xyz[1];

    while (ADC10CTL1 & BUSY);               // Wait if ADC10 core is

    ADC10CTL0 |= ADC10ENC + ADC10SC;        // Start sampling

    led2_off;

    led3_on;

    while(UCA0STATW & UCBUSY);

    TXdata = xyz[2];

    while (ADC10CTL1 & BUSY);               // Wait if ADC10 core is

    ADC10CTL0 |= ADC10ENC + ADC10SC;        // Start sampling

    led3_off;

    }