MSP430FR2033 ADC Repeat-Single-Channel Mode多次采集数据异常

Hi all：

我在使用MSP430FR2033时需要使用ADC测量一个电压，打算多次测量取平均值，发现采集的数据数量少于预期的数量，但单步调试是正常的，这有可能是什么问题呢？

代码如下：

1、调用：

unsigned int read_angle_value(void)
{
    unsigned char i;
    unsigned char num = 10;
    unsigned int angle_temp = 0;

    //num = angle_num;

    // Configure ADC A9 pin
    SYSCFG2 |= ADCPCTL9;

    adc_repeat_single_channel_vcc(ADCINCH_9, 10, angle_value);

    for (i = 0; i < num; i++) {
        angle_temp = angle_temp + angle_value[i];
    }
    angle_temp = angle_temp / num;

    return angle_temp;
}

2、ADC初始化程序：

unsigned int *ADC_Result;
unsigned char ADC_Count;

unsigned int read_angle_value(void)
{
    unsigned char i;
    unsigned char num = 10;
    unsigned int angle_temp = 0;

    //num = angle_num;

    // Configure ADC A9 pin
    SYSCFG2 |= ADCPCTL9;

    adc_repeat_single_channel_vcc(ADCINCH_9, 10, angle_value);

    for (i = 0; i < num; i++) {
        angle_temp = angle_temp + angle_value[i];
    }
    angle_temp = angle_temp / num;

    return angle_temp;
}

3、中断处理程序

// ADC interrupt service routine
#if defined(__TI_COMPILER_VERSION__) || defined(__IAR_SYSTEMS_ICC__)
#pragma vector=ADC_VECTOR
__interrupt void ADC_ISR(void)
#elif defined(__GNUC__)
void __attribute__ ((interrupt(ADC_VECTOR))) ADC_ISR (void)
#else
#error Compiler not supported!
#endif
{
    switch(__even_in_range(ADCIV,ADCIV_ADCIFG))
    {
        case ADCIV_NONE:
            break;
        case ADCIV_ADCOVIFG:
            break;
        case ADCIV_ADCTOVIFG:
            break;
        case ADCIV_ADCHIIFG:
            ADCIFG &= ~ADCHIIFG;                        // Clear interrupt flag
            P4OUT |= BIT3 | BIT4 |BIT5;
            P4OUT &= ~BIT3;
            break;
        case ADCIV_ADCLOIFG:
            ADCIFG &= ~ADCLOIFG;                        // Clear interrupt flag
            P4OUT |= BIT3 | BIT4 |BIT5;
            P4OUT &= ~BIT4;
            break;
        case ADCIV_ADCINIFG:
            ADCIFG &= ~ADCINIFG;                        // Clear interrupt flag
            *ADC_Result = ADCMEM0;
            adc_window_isr();
            P4OUT |= BIT3 | BIT4 |BIT5;
            P4OUT &= ~BIT5;
            //ADCCTL0 &= ~ADCENC;
            //__bic_SR_register_on_exit(LPM0_bits);            // Clear CPUOFF bit from LPM0
            break;
        case ADCIV_ADCIFG:
            if (ADC_Count > 1) {
                *ADC_Result++ = ADCMEM0;
                ADC_Count--;
                break;
            } else {
                *ADC_Result++ = ADCMEM0;
                ADCCTL0 &= ~ADCENC;
                __bic_SR_register_on_exit(LPM0_bits);            // Clear CPUOFF bit from LPM0
                break;
            }
        default:
            break;
    }
}